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Datasheet> All Categories > Analog mixed-signal IC> Drivers and interfaces> ICL3237ECAZ
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ICL3237ECAZ

Description
±15KV ESD, 1µA Supply-Current, +3V to +5.5V, 250kbps or 1000kbps, RS-232 Transmitters/Receivers; SSOP28; Temp Range: See Datasheet
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size303KB，21 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
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ICL3237ECAZ Overview

±15KV ESD, 1µA Supply-Current, +3V to +5.5V, 250kbps or 1000kbps, RS-232 Transmitters/Receivers; SSOP28; Temp Range: See Datasheet

ICL3237ECAZ Parametric

Parameter NameAttribute value
Brand NameIntersil
MakerRenesas Electronics Corporation
Parts packaging codeSSOP
package instructionSSOP, SSOP28,.3
Contacts28
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
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 codee3
length10.2 mm
Humidity sensitivity level3
Number of functions3
Number of terminals28
Maximum operating temperature70 °C
Minimum operating temperature
Minimum output swing10 V
Maximum output low current0.0016 A
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP28,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
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 surfaceMatte Tin (Sn) - annealed
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width5.3 mm

ICL3237ECAZ Preview

Datasheet
ICL3237E
±15kV ESD Protected, 10nA Supply-Current, +3V to +5.5V, 250k/1Mbps,
RS-232 Transmitters/Receivers
The
ICL3237E
contains 3.0V to 5.5V powered
RS-232 transmitters/receivers that meet ElA/TIA-232
and V.28/V.24 specifications, even at V
CC
= 3.0V. 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, PDAs, Palmtops, and
notebook and laptop computers where the low
operational power and even lower standby power
consumption is critical. Efficient on-chip charge
pumps coupled with the manual powerdown function
reduce the standby supply current to a 10nA trickle.
Small footprint packaging and the use of small, low
value capacitors ensure board space savings. Data
rates greater than 1Mbps (MBAUD = V
CC
) are
ensured at worst case load conditions. The ICL3237E
is fully compatible with 3.3V only systems, mixed 3.3V
and 5.0V systems, and 5.0V only systems.
The ICL3237E is a 5 driver, 3 receiver device that also
includes a noninverting always-active receiver for
“wake-up” capability.
Table 1
summarizes the features of the ICL3237E.
Application Note AN9863
summarizes the features of
each device comprising the ICL32xx RS-232 3V
family.
Features
• Pb-free (RoHS compliant)
• ESD protection for RS-232 I/O pins to ±15kV
(IEC61000)
• Pin compatible replacement for MAX3237E
• Pin selectable, ensured data rate: 250kbps/1Mbps
• Meets EIA/TIA-232 and V.28/V.24 specifications
at 3V
• RS-232 compatible with V
CC
= 2.7V
• Latch-up free
• On-chip voltage converters require only
four external capacitors
• Manual powerdown feature
• Flow through pinout
• Rx and Tx hysteresis for improved noise immunity
• Rx active in powerdown; separate Rx Enable pin
• Guaranteed minimum slew rate: 6V/µs or 24V/µs
• Wide power supply range: Single +3V to +5.5V
• Low supply current in powerdown state: 10nA
Related Literature
For a full list of related documents, visit our website:
•
ICL3237E
device page
Applications
• Any system requiring RS-232 communication ports
○ Battery powered, hand-held, and portable
equipment
○ Laptop computers, notebooks, and Palmtops
○ Modems, printers and other peripherals
○ Data cradles and cables
○ Cellular/mobile phones
Table 1.
Summary of Features
No. of
Tx.
5
No. of
Rx.
3
No. of Monitor
Rx. (R
OUTB
)
1
Data Rate
(kbps) (Note
1)
250/1000
Rx. Enable
Function?
Yes
Ready
Output?
No
Manual
Powerdown?
Yes
Automatic
Powerdown
Function?
No
Part Number
ICL3237E
Note:
1. Data rate is selectable with the MBAUD pin.
FN6014 Rev.3.00
Apr.26.19
Page 1 of 21
ICL3237E
Contents
1.
1.1
1.2
1.3
1.4
2.
2.1
2.2
2.3
2.4
3.
4.
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Typical Operating Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
4
4
4
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6
6
6
Typical Performance Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1
4.1.1
4.2
4.3
4.4
4.5
4.5.1
4.6
4.7
4.8
4.9
4.10
4.11
4.12
Charge Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Pump Abs Max Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Down to 2.7V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powerdown Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Controlled (Manual) Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacitor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver ENABLE Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MegaBaud Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Decoupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Outputs when Exiting Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Data Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnection with 3V and 5V Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
11
12
12
13
13
13
13
14
15
15
15
16
16
5.
5.1
5.2
5.3
5.4
6.
7.
8.
±15kV ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Human Body Model (HBM) Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IEC61000-4-2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air-Gap Discharge Test Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact Discharge Test Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
17
17
17
Die Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FN6014 Rev.3.00
Apr.26.19
Page 2 of 21
ICL3237E
1. Overview
1.
1.1
Overview
Typical Operating Circuit
ICL3237E
+3.3V
+
27
V+
4
+
C
3
0.1µF
Note 3
C
4
0.1µF
+
T1
OUT
V-
T
1
5
6
7
T3
OUT
19
17
T5
IN
TTL/CMOS
Logic Levels
16
R1
OUTB
21
R1
OUT
R
1
R2
OUT
20
R
2
18
R3
OUT
13
EN
R
3
5kΩ
5kΩ
11
R3
IN
5kΩ
9
R2
IN
RS-232
Levels
8
R1
IN
T
4
10
12
T5
OUT
T4
OUT
T2
OUT
RS-232
Levels
+
C
3
(Optional Connection,
Note 2)
0.1µF
28
+
25
1
+
3
24
C1+
C1-
C2+
C2-
26
V
CC
C
1
0.1µF
Note 3
C
2
0.1µF
T1
IN
T2
IN
T3
IN
T4
IN
23
22
T
2
T
3
T
5
V
CC
To Control Logic
14
15
SHDN
MBAUD
GND
2
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.
FN6014 Rev.3.00
Apr.26.19
Page 3 of 21
ICL3237E
1. Overview
1.2
Ordering Information
Part Number
(Notes
5, 6)
Part Marking
ICL3237 ECAZ
ICL3237 ECAZ
ICL3237 EIAZ
ICL3237 EIAZ
Temp. Range (°C)
0 to +70
0 to +70
-40 to +85
-40 to +85
1k
Tape and Reel
(Units) (Note
4)
-
1k
Package (RoHS
Compliant)
28 Ld SSOP
28 Ld SSOP
28 Ld SSOP
28 Ld SSOP
Pkg. Dwg. #
M28.209
M28.209
M28.209
M28.209
ICL3237ECAZ
ICL3237ECAZ-T
ICL3237EIAZ
ICL3237EIAZ-T
Notes:
4. See
TB347
for details about reel specifications.
5. These Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu-Ag
plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. 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-020.
6. For Moisture Sensitivity Level (MSL), see the
ICL3237E
device page. For more information about MSL, see
TB363.
1.3
Pinout
28 Ld SSOP
Top View
C2+ 1
GND 2
C2-
3
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 MBAUD
V- 4
T1
OUT
T2
OUT
T3
OUT
R1
IN
R2
IN
5
6
7
8
9
T4
OUT
10
R3
IN
11
T5
OUT
12
EN 13
SHDN 14
1.4
Pin Descriptions
Pin
V
CC
V+
V-
GND
C1+
C1-
C2+
C2-
T
IN
T
OUT
R
IN
R
OUT
R
OUTB
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
7).
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 output.
Function
FN6014 Rev.3.00
Apr.26.19
Page 4 of 21
ICL3237E
Pin
EN
SHDN
MBAUD
Function
Active low receiver enable control; doesn’t disable R
OUTB
output (Note
7).
1. Overview
Active low input to shut down transmitters and on-board power supply, to place device in low power mode (Note
7).
Input low selects the 250kbps data rate. Input high selects the 1Mbps data rate (Note
7).
Note:
7. These input pins incorporate positive feedback resistors. When the input is driven to a valid logic level, the feedback resistor maintains
that logic level until V
CC
is removed.
FN6014 Rev.3.00
Apr.26.19
Page 5 of 21
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