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ICL3238ECA-T

Description
TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size660KB,14 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
Related ProductsFound20parts with similar functions to ICL3238ECA-T
Download Datasheet Parametric Compare View All

ICL3238ECA-T Overview

TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28

ICL3238ECA-T Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerRenesas Electronics Corporation
Parts packaging codeSSOP
package instructionSSOP, SSOP28,.3
Contacts28
Reach Compliance Codenot_compliant
ECCN codeEAR99
Differential outputNO
Number of drives5
Input propertiesSCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232; TIA-232; V.24; V.28
JESD-30 codeR-PDSO-G28
JESD-609 codee0
length10.2 mm
Humidity sensitivity level1
Number of functions3
Number of terminals28
Maximum operating temperature70 °C
Minimum operating temperature
Minimum output swing10 V
Maximum output low current0.001 A
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP28,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)240
power supply3.3/5 V
Certification statusNot Qualified
Maximum receive delay
Number of receiver bits3
Maximum seat height2 mm
Maximum slew rate1 mA
Maximum supply voltage5.5 V
Minimum supply voltage3.15 V
Nominal supply voltage3.3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width5.3 mm

ICL3238ECA-T Preview

DATASHEET
ICL3238E
±15kV ESD Protected, +3V to +5.5V, 10nA, 250kbps, RS-232 Transceiver with
Enhanced Automatic Powerdown
The Intersil ICL3238E contains 3.0V to 5.5V powered
RS-232 transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at V
CC
= 3.0V. Additionally, it
provides
15kV ESD protection (IEC61000-4-2 Air Gap and
Human Body Model) on transmitter outputs and receiver
inputs (RS-232 pins). Targeted applications are cell phones,
Palmtops, and data cables where the low operational, and
even lower standby, power consumption is critical. Efficient
on-chip charge pumps, coupled with manual and enhanced
automatic powerdown functions, reduce the standby supply
current to a 10nA trickle. Small footprint packaging, and the
use of small, low value capacitors ensure board space
savings as well. Data rates greater than 250kbps are
guaranteed at worst case load conditions providing
compatibility with popular PC communication software.
The ICL3238E is a 5 driver, 3 receiver device optimized for
DCE applications with full hardware handshaking. It also
includes a noninverting always-active receiver for RING
INDICATOR monitoring.
This device, features an
enhanced automatic powerdown
function which powers down the on-chip power-supply and
driver circuits. This occurs when all receiver and transmitter
inputs detect no signal transitions for a period of 30s. The
ICL3238E powers back up, automatically, whenever it
senses a transition on any transmitter or receiver input.
The transmitter and logic inputs include active feedback
resistors that retain the input state once driven to a valid
logic level.
Table 1 summarizes the features of the ICL3238E, while
Application Note AN9863 summarizes the features of each
device comprising the ICL32XXE 3V family.
FN6012
Rev 3.00
July 2004
Features
• Pb-Free Available as an Option (see Ordering Info)
• ESD Protection for RS-232 I/O Pins to
15kV (IEC61000)
• Active Feedback Resistors on T
X
and Logic Inputs.
• Manual and Enhanced Automatic Powerdown Features
• Pin Compatible Replacement for MAX3238E, MAX3238,
SP3238E
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• RS-232 Compatible Outputs at 2.7V Supply
• Flow Through Pinout
• Latch-Up Free
• On-Chip Voltage Converters Require Only Four External
Capacitors
• Receiver and Transmitter Hysteresis For Improved Noise
Immunity
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/
µ
s
• Wide Power Supply Range . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State. . . . . . . . . 10nA
Applications
• Any System Requiring RS-232 Communication Ports
- Battery Powered, Hand-Held, and Portable Equipment
- Data Cradles
- Modems, Printers and other Peripherals
- Cellular/Mobile Phones, Data Cables
TABLE 1. SUMMARY OF FEATURES
NO. OF
MONITOR Rx.
(R
OUTB
)
1
DATA
RATE
(kbps)
250
MANUAL
POWER-
DOWN?
Yes
ENHANCED
AUTOMATIC
POWERDOWN
FUNCTION?
Yes
PART
NUMBER
ICL3238E
NO. OF NO. OF
Tx.
Rx.
5
3
Rx. ENABLE
FUNCTION?
No
READY
OUTPUT?
No
FN6012 Rev 3.00
July 2004
Page 1 of 14
ICL3238E
Pinout
ICL3238E (SSOP, TSSOP)
TOP VIEW
C2+
GND
C2-
V-
T1
OUT
T2
OUT
T3
OUT
R1
IN
R2
IN
1
2
3
4
5
6
7
8
9
28 C1+
27 V+
26 V
CC
25 C1-
24 T1
IN
23 T2
IN
22 T3
IN
21 R1
OUT
20 R2
OUT
19 T4
IN
18 R3
OUT
17 T5
IN
16 R1
OUTB
15 INVALID
Ordering Information
PART NO.
ICL3238ECA
ICL3238ECA-T
ICL3238ECAZ
(Note)
ICL3238ECAZ-T
(Note)
ICL3238EIA
ICL3238EIA-T
ICL3238EIAZ
(Note)
ICL3238EIAZ-T
(Note)
ICL3238EIV-T
ICL3238EIVZ-T
(Note)
TEMP.
RANGE (
o
C)
0 to 70
0 to 70
0 to 70
0 to 70
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
PACKAGE
28 Ld SSOP
28 Ld SSOP
Tape and Reel
28 Ld SSOP
(Pb-Free)
PKG.
DWG. #
M28.209
M28.209
M28.209
28 Ld SSOP
M28.209
Tape and Reel
(Pb-Free)
28 Ld SSOP
28 Ld SSOP
Tape and Reel
28 Ld SSOP
(Pb-Free)
M28.209
M28.209
M28.209
T4
OUT
10
R3
IN
11
T5
OUT
12
FORCEON 13
FORCEOFF 14
28 Ld SSOP
M28.209
Tape and Reel
(Pb-Free)
28 Ld TSSOP
Tape and Reel
M28.173
28 Ld TSSOP
M28.173
Tape and Reel
(Pb-Free)
NOTE:
Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which is compatible with both SnPb and Pb-free
soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J Std-020B.
Pin Descriptions
PIN
V
CC
V+
V-
GND
C1+
C1-
C2+
C2-
T
IN
T
OUT
R
IN
R
OUT
R
OUTB
INVALID
System Power Supply Input (3.0V to 5.5V).
Internally Generated Positive Transmitter Supply (+5.5V).
Internally Generated Negative Transmitter Supply (-5.5V).
Ground Connection.
External Capacitor (Voltage Doubler) is connected to this lead.
External Capacitor (Voltage Doubler) is connected to this lead.
External Capacitor (Voltage Inverter) is connected to this lead.
External Capacitor (Voltage Inverter) is connected to this lead.
TTL/CMOS Compatible Transmitter Inputs (Note 1).
15kV
ESD Protected
,
RS-232 Level (Nominally
5.5V)
Transmitter Outputs.
15kV
ESD Protected
,
RS-232 Compatible Receiver Inputs.
TTL/CMOS Level Receiver Outputs.
TTL/CMOS Level, Noninverting, Always Enabled Receiver Outputs.
Active Low Output that indicates if no valid RS-232 levels are present on any receiver input.
FUNCTION
FORCEOFF Active Low to Shut Down Transmitters and On-Chip Power Supply. This overrides any automatic circuitry and FORCEON (see Table 2,
Note 1).
FORCEON Active High Input to override automatic powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high, Note 1).
NOTE:
1. These input pins incorporate positive feedback resistors. Once the input is driven to a valid logic level, the feedback resistor maintains that logic
level until V
CC
is removed. Unused transmitter inputs may be left unconnected by the user.
FN6012 Rev 3.00
July 2004
Page 2 of 14
ICL3238E
Typical Operating Circuit
ICL3238E
C
3
(OPTIONAL CONNECTION, NOTE 2)
0.1µF
C
1
0.1µF
C
2
0.1µF
28
+
25
1
+
3
24
T1
IN
T2
IN
T3
IN
19
T4
IN
17
T5
IN
TTL/CMOS
LOGIC LEVELS
16
R1
OUTB
R1
OUT
R
1
R2
OUT
20
R
2
R3
OUT
18
R
3
13
14
15
FORCEON
FORCEOFF
INVALID
GND
2
5k
5k
11
R3
IN
5k
9
R2
IN
21
8
R1
IN
T
5
12
T5
OUT
T
4
10
T4
OUT
23
22
T
2
C1+
C1-
C2+
C2-
T
1
V-
+
27
V+
4
+
C
3
0.1µF
NOTE 3
C
4
0.1µF
+
T1
OUT
T2
OUT
T3
OUT
RS-232
LEVELS
5
6
7
+
26
V
CC
+3.3V
NOTE 3
T
3
RS-232
LEVELS
V
CC
TO POWER
CONTROL LOGIC
NOTES:
2. The negative terminal of C
3
can be connected to either V
CC
or GND.
3. For V
CC
= 3.15V (3.3V -5%), use C
1
- C
4
= 0.1µF or greater. For V
CC
= 3.0V (3.3V -10%), use C
1
- C
4
= 0.22µF.
FN6012 Rev 3.00
July 2004
Page 3 of 14
ICL3238E
Absolute Maximum Ratings
V
CC
to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V- to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Input Voltages
T
IN
, FORCEOFF, FORCEON . . . . . . . . . . . . . . . . . . -0.3V to 6V
R
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25V
Output Voltages
T
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.2V
R
OUT
, INVALID . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V
CC
+0.3V
Short Circuit Duration
T
OUT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Thermal Information
Thermal Resistance (Typical, Note 4)
JA
(
o
C/W)
28 Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . .
100
28 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . .
110
Maximum Junction Temperature (Plastic Package) . . . . . . . 150
o
C
Maximum Storage Temperature Range . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300
o
C
(Lead Tips Only)
Operating Conditions
Temperature Range
ICL3238ECX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to 70
o
C
ICL3238EIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 85
o
C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
4.
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Test Conditions: V
CC
= 3.15V to 5.5V, C
1
- C
4
= 0.1µF; V
CC
= 3V, C
1
- C
4
= 0.22µF; Unless Otherwise
Specified. Typicals are at T
A
= 25
o
C
TEST CONDITIONS
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
PARAMETER
DC CHARACTERISTICS
Supply Current, Automatic
Powerdown
Supply Current, Powerdown
Supply Current,
Automatic Powerdown Disabled
All R
IN
Open, FORCEON = GND, FORCEOFF = V
CC
FORCEOFF = GND
All Outputs Unloaded, FORCEON = FORCEOFF = V
CC
25
25
25
-
-
-
10
10
0.3
300
300
1.0
nA
nA
mA
LOGIC AND TRANSMITTER INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold Low
T
IN
Active
T
IN
, FORCEON, FORCEOFF
Wake up Threshold
Input Logic Threshold High
T
IN
Active
T
IN
, FORCEON, FORCEOFF
Wake up Threshold
Input Leakage Current
Output Leakage Current
Output Voltage Low
Output Voltage High
RECEIVER INPUTS
Input Voltage Range
Input Threshold Low
V
CC
= 3.3V
V
CC
= 5.0V
Input Threshold High
V
CC
= 3.3V
V
CC
= 5.0V
Input Hysteresis
Input Resistance
Full
Full
Full
Full
Full
25
25
-25
0.6
0.8
-
-
-
3
-
1.2
1.5
1.5
1.8
0.6
5
25
-
-
2.4
2.4
-
7
V
V
V
V
V
V
k
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.6V
V
CC
= 3.3V
V
CC
= 5.0V
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
-
-
-
2.0
2.0
2.4
-
-
-
-
-
-
-
-
-
0.01
0.05
-
0.8
0.8
0.8
-
-
-
1.0
10
0.4
-
V
V
V
V
V
V
µA
µA
V
V
T
IN
, FORCEON, FORCEOFF, V
IN
= 0V or V
CC
(Note 5)
FORCEOFF = GND
I
OUT
= 1.0mA
I
OUT
= -1.0mA
V
CC
-0.6 V
CC
-0.1
FN6012 Rev 3.00
July 2004
Page 4 of 14
ICL3238E
Electrical Specifications
Test Conditions: V
CC
= 3.15V to 5.5V, C
1
- C
4
= 0.1µF; V
CC
= 3V, C
1
- C
4
= 0.22µF; Unless Otherwise
Specified. Typicals are at T
A
= 25
o
C
(Continued)
TEST CONDITIONS
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
PARAMETER
ENHANCED AUTOMATIC POWERDOWN
(FORCEON = GND, FORCEOFF = V
CC
)
Receiver Input Thresholds to
INVALID High
Receiver Input Thresholds to
INVALID Low
INVALID Output Voltage Low
INVALID Output Voltage High
Receiver Positive or Negative
Threshold to INVALID High Delay
(t
INVH
)
Receiver Positive or Negative
Threshold to INVALID Low Delay
(t
INVL
)
Receiver or Transmitter Edge to
Transmitters Enabled Delay (t
WU
)
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(t
AUTOPWDN
)
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
R
L
= 3kC
L
= 1000pF, One Transmitter Switching
Receiver Input to Receiver
Output, C
L
= 150pF
Normal Operation
Normal Operation
t
PHL
- t
PLH
t
PHL
- t
PLH
V
CC
= 3.3V,
R
L
= 3kto 7k
Measured From 3V to -3V or -3V
to 3V
C
L
= 150pF to 1000pF
C
L
= 150pF to 2500pF
t
PHL
t
PLH
Full
25
25
25
25
25
25
25
25
250
-
-
-
-
-
-
6
4
500
0.15
0.15
150
300
50
50
15
12
-
-
-
-
-
-
-
30
30
kbps
µs
µs
ns
ns
ns
ns
V/µs
V/µs
V
OUT
=12V, V
CC
= 0V or 3V to 5.5V,
Automatic Powerdown or FORCEOFF = GND
All Transmitter Outputs Loaded with 3k to Ground
V
CC
= V+ = V- = 0V, Transmitter Output =
2V
Full
Full
Full
Full
5.0
300
-
-
5.4
10M
35
-
-
-
60
25
V
mA
µA
(Note 6)
(Note 6)
(Figure 6)
(Figure 6)
I
OUT
= 1.0mA
I
OUT
= -1.0mA
Full
Full
Full
Full
25
-2.7
-0.3
-
V
CC
-0.6
-
-
-
-
-
0.3
2.7
0.3
0.4
-
-
V
V
V
V
µs
25
-
60
-
µs
25
Full
-
15
25
30
-
60
µs
s
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
ESD PERFORMANCE
RS-232 Pins (T
OUT
, R
IN
)
IEC61000-4-2 Air Gap Discharge
IEC61000-4-2 Contact Discharge
Human Body Model
All Other Pins
NOTES:
5. These inputs utilize a positive feedback resistor. The input current is negligible when the input is at either supply rail.
6. An “edge” is defined as a transition through the transmitter or receiver input thresholds.
Human Body Model
25
25
25
25
-
-
-
-
15
8
15
2.5
-
-
-
-
kV
kV
kV
kV
FN6012 Rev 3.00
July 2004
Page 5 of 14

ICL3238ECA-T Related Products

ICL3238ECA-T ICL3238EIA ICL3238ECA ICL3238EIA-T ICL3238EIV-T
Description TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28 TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28 Line Transceiver TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28 TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-153AE, TSSOP-28
Maker Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation
package instruction SSOP, SSOP28,.3 SSOP, SSOP28,.3 , SSOP, SSOP28,.3 TSSOP, TSSOP28,.25
Reach Compliance Code not_compliant not_compliant compliant _compli _compli
Interface integrated circuit type LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER
Is it Rohs certified? incompatible incompatible - incompatible incompatible
Parts packaging code SSOP SSOP - SSOP TSSOP
Contacts 28 28 - 28 28
ECCN code EAR99 EAR99 - EAR99 EAR99
Differential output NO NO - NO NO
Number of drives 5 5 - 5 5
Input properties SCHMITT TRIGGER SCHMITT TRIGGER - SCHMITT TRIGGER SCHMITT TRIGGER
Interface standards EIA-232; TIA-232; V.24; V.28 EIA-232; TIA-232; V.24; V.28 - EIA-232; TIA-232; V.24; V.28 EIA-232; TIA-232; V.24; V.28
JESD-30 code R-PDSO-G28 R-PDSO-G28 - R-PDSO-G28 R-PDSO-G28
JESD-609 code e0 e0 - e0 e0
length 10.2 mm 10.2 mm - 10.2 mm 9.7 mm
Humidity sensitivity level 1 1 - 1 1
Number of functions 3 3 - 3 3
Number of terminals 28 28 - 28 28
Maximum operating temperature 70 °C 85 °C - 85 °C 85 °C
Minimum operating temperature - -40 °C - -40 °C -40 °C
Minimum output swing 10 V 10 V - 10 V 10 V
Maximum output low current 0.001 A 0.001 A - 0.001 A 0.001 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SSOP SSOP - SSOP TSSOP
Encapsulate equivalent code SSOP28,.3 SSOP28,.3 - SSOP28,.3 TSSOP28,.25
Package shape RECTANGULAR RECTANGULAR - RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH - SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 240 240 - 240 240
power supply 3.3/5 V 3.3/5 V - 3.3/5 V 3.3/5 V
Certification status Not Qualified Not Qualified - Not Qualified Not Qualified
Number of receiver bits 3 3 - 3 3
Maximum seat height 2 mm 2 mm - 2 mm 1.2 mm
Maximum slew rate 1 mA 1 mA - 1 mA 1 mA
Maximum supply voltage 5.5 V 5.5 V - 5.5 V 5.5 V
Minimum supply voltage 3.15 V 3.15 V - 3.15 V 3.15 V
Nominal supply voltage 3.3 V 3.3 V - 3.3 V 3.3 V
surface mount YES YES - YES YES
technology CMOS CMOS - CMOS CMOS
Temperature level COMMERCIAL INDUSTRIAL - INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING - GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm - 0.65 mm 0.65 mm
Terminal location DUAL DUAL - DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED - NOT SPECIFIED NOT SPECIFIED
width 5.3 mm 5.3 mm - 5.3 mm 4.4 mm

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MAX3238ECAI+T Maxim(美信半导体) RS-232 interface IC 3-5.5V 250kbps transceiver
ICL3238EIAZ Renesas(瑞萨电子) ±15kV ESD Protected, 5-Tx, 3-Rx, 250kbps, RS-232 Transceiver with Enhanced Automatic Powerdown; SSOP28, TSSOP28; Temp Range: See Datasheet
ICL3238CA Rochester Electronics 5 LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28
SN75C3238DBRE4 Texas Instruments(德州仪器) 3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP 0 to 70
MAX3238ECAI+ Maxim(美信半导体) RS-232 interface IC 3-5.5V 250kbps transceiver
SN75C3238DBR Texas Instruments(德州仪器) 3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP 0 to 70
MAX3238IDBRG4Q1 Texas Instruments(德州仪器) Automotive Catalog 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP -40 to 85
MAX3238IDBG4Q1 Texas Instruments(德州仪器) Automotive Catalog 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP -40 to 85
MAX3238EEAI+T Maxim(美信半导体) RS-232 interface IC 3-5.5V 250kbps transceiver
MAX3238IDBR Texas Instruments(德州仪器) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP -40 to 85
ICL3238EIA Rochester Electronics TRIPLE LINE TRANSCEIVER, PDSO28, PLASTIC, MO-150AH, SSOP-28
MAX3238CAI+T Maxim(美信半导体) RS-232 Interface IC 3-5.5V 250kbps Transceiver
MAX3238EAI+ Maxim(美信半导体) RS-232 Interface IC 3-5.5V 250kbps Transceiver
MAX3238EAI+T Maxim(美信半导体) RS-232 interface IC 3-5.5V 250kbps transceiver
MAX3238CDBR Texas Instruments(德州仪器) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP 0 to 70
MAX3238EEAI+ Maxim(美信半导体) RS-232 interface IC 3-5.5V 250kbps transceiver
MAX3238IDB Texas Instruments(德州仪器) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP -40 to 85
MAX3238CDBRE4 Texas Instruments(德州仪器) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP 0 to 70
MAX3238EIDBR Texas Instruments(德州仪器) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV ESD (HBM) Protection 28-SSOP -40 to 85
MAX3238CDB Texas Instruments(德州仪器) 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver 28-SSOP 0 to 70
About power management options in BIOS
About power management options in BIOS The power management options in the BIOS are generally difficult to understand, so here is a brief introduction. The reason why it is difficult to understand is ...
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短距无线蓝芽技术已广泛嵌入至多种消费装置中,从手机、笔记型电脑、PDA到汽车,都可看到相关应用,而一般认为手机为带动蓝芽成长的最大动力。根据市场研究机构IC Insights近期公佈的报告指出,以Wi-Fi、蓝芽(Bluetooth)为主的无线网路晶片成为2005年IC市场的亮点,蓝芽市场规模预计由2004年的5.8亿美元,在2008年时成长为15亿美元,ASP将为2002年的四分之一,而蓝芽晶片...
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Ask for advice from the experts! Design of soft start circuit based on single chip microcomputer
Recently, I want to design a three-phase soft start circuit based on a single-chip microcomputer. The basic components required are: 1.IGBT tube 2. Single chip microcomputer 3. Relay 4. Motor 5. LCD d...
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U disk IAP jump APP abnormal
[i=s]This post was last edited by shipeng on 2019-5-15 18:48[/i] [size=3]I recently used the USB_OTG_FS of STM32F429 to make a BOOTLOADER that can read files in the USB disk through USB (PA11, PA12) o...
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