IDT74FCT163344A/C
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS ONE-TO-FOUR
ADDRESS/CLOCK DRIVER
IDT74FCT163344A/C
FEATURES:
• 0.5 MICRON CMOS Technology
• Typical t
SK(o)
(Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• V
CC
= 3.3V ± 0.3V, Normal Range, or V
CC
= 2.7V to 3.6V, Extended
Range
• CMOS power levels (0.4μ W typ. static)
μ
• Rail-to-rail output swing for increased noise margin
• Low Ground Bounce (0.3V typ.)
• Inputs (except I/O) can be driven by 3.3V or 5V components
• Available in TSSOP package
DESCRIPTION:
The FCT163344 is a 1:4 address/clock driver built using advanced dual
metal CMOS technology. This high-speed, low power device provides the
ability to fanout to memory arrays. Eight banks, each with a fanout of 4, and
3-state control provide efficient address distribution. One or more banks may
be used for clock distribution.
The FCT163344 has series current limiting resistors. These offer low
ground bounce, minimal undershoot and controlled output fall times,
reducing the need for external series terminating resistors.
A large number of power and ground pins ensure reduced noise levels.
All inputs are designed with hysteresis for improved noise margins.
The inputs of the FCT163344 can be driven from either 3.3V or 5V device.
This feature allows the use of these devices as translators in a mixed 3.3V/
5V supply system.
FUNCTIONAL BLOCK DIAGRAM
OE
1
1
2
OE
3
B
11
A
5
6
36
29
34
B
51
A
1
8
B
14
B
21
A
6
42
30
B
54
B
61
9
41
A
2
14
13
B
24
37
B
64
OE
2
28
16
OE
4
B
31
A
7
20
43
56
48
B
71
A
3
15
B
34
B
41
A
8
49
44
B
74
B
81
23
55
A
4
21
27
51
B
44
B
84
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
© 2009 Integrated Device Technology, Inc.
SEPTEMBER 2009
DSC-3249/6
IDT74FCT163344A/C
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
OE1
B
11
B
12
GND
B
13
B
14
V
CC
A
1
B
21
B
22
GND
B
23
B
24
A
2
A
3
B
31
B
32
GND
B
33
B
34
A
4
V
CC
B
41
B
42
GND
B
43
B
44
OE
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
OE4
B
81
B
82
GND
B
83
B
84
V
CC
A
8
B
71
B
72
GND
B
73
B
74
A
7
A
6
B
61
B
62
GND
B
63
B
64
A
5
V
CC
B
51
B
52
GND
B
53
B
54
OE
3
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
TERM
(2)
V
TERM
(3)
V
TERM
(4)
T
STG
I
OUT
Description
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Max
–0.5 to +4.6
–0.5 to 7
–0.5 to V
CC
+0.5
–65 to +150
–60 to +60
Unit
V
V
V
°C
mA
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. Vcc terminals.
3. Input terminals.
4. Outputs and I/O terminals.
CAPACITANCE
(T
A
= +25°C, F = 1.0MHz)
Symbol
C
IN
C
OUT
Parameter
(1)
Input Capacitance
Output Capacitance
Conditions
V
IN
= 0V
V
OUT
= 0V
Typ.
3.5
3.5
Max.
6
7
Unit
pF
pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
OEx
Ax
Bxx
Inputs
3-State Outputs
Description
3-State Output Enable Inputs (Active LOW)
FUNCTION TABLE
(1)
Inputs
OEx
L
L
Ax
L
H
X
Outputs
Bxx
L
H
Z
TSSOP
TOP VIEW
H
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-impedance
2
IDT74FCT163344A/C
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= –40°C to +85°C, V
CC
= 2.7V to 3.6V
Symbol
V
IH
Parameter
Input HIGH Level (Input pins)
Input HIGH Level (I/O pins)
V
IL
I
IH
Input LOW Level (Input and I/O pins) Guaranteed Logic LOW Level
Input HIGH Current (Input pins)
Input HIGH Current (I/O pins)
I
IL
Input LOW Current (Input pins)
Input LOW Current (I/O pins)
I
OZH
I
OZL
V
IK
I
ODH
I
ODL
V
OH
High Impedance Output Current
(3-State Output pins)
Clamp Diode Voltage
Output HIGH Current
Output LOW Current
Output HIGH Voltage
V
CC
= Min., I
IN
= –18mA
V
CC
= 3.3V, V
IN
= V
IH
or V
IL,
V
O
= 1.5V
(3)
V
CC
= 3.3V, V
IN
= V
IH
or V
IL,
V
O
= 1.5V
(3)
V
CC
= Min.
V
IN
= V
IH
or V
IL
V
CC
= 3V
V
IN
= V
IH
or V
IL
V
OL
Output LOW Voltage
V
CC
= Min.
V
IN
= V
IH
or V
IL
V
CC
= 3V
V
IN
= V
IH
or V
IL
I
OS
V
H
I
CCL
I
CCH
I
CCZ
Short Circuit Current
(4)
Input Hysteresis
Quiescent Power Supply Current
V
CC
= Max.
V
IN
= GND or V
CC
V
CC
= Max., V
O
= GND
(3)
—
–60
—
—
–135
150
0.1
–240
—
10
mA
mV
µA
I
OL
= 0.1mA
I
OL
= 16mA
I
OL
= 24mA
I
OL
= 24mA
—
—
—
—
—
0.2
0.3
0.3
0.2
0.4
0.55
0.5
V
I
OH
= –0.1mA
I
OH
= –3mA
I
OH
= –8mA
V
CC
= Max.
V
CC
= Max.
V
I
= 5.5V
V
I
= V
CC
V
I
= GND
V
I
= GND
V
O
= V
CC
V
O
= GND
Test Conditions
(1)
Guaranteed Logic HIGH Level
Min.
2
2
–0.5
—
—
—
—
—
—
—
–36
50
V
CC
-0.2
2.4
2.4
(5)
Typ.
(2)
—
—
—
—
—
—
—
—
—
–0.7
–60
90
—
3
3
Max.
5.5
V
CC
+0.5
0.8
±1
±1
±1
±1
±1
±1
–1.2
–110
200
—
—
—
V
V
mA
mA
µA
µA
V
Unit
V
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. V
OH
= V
CC
–0.6V at rated current.
3
IDT74FCT163344A/C
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol
ΔI
CC
I
CCD
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply
Current
(4)
V
CC
= Max.
V
IN
= V
CC
- 0.6V
(3)
V
CC
= Max.
Outputs Open
OEx
= GND
One Input Bit Togging
Four Output Bits Togging
50% Duty Cycle
V
CC
= Max.,Outputs Open
f
I
= 10MHz
50% Duty Cycle
OEx
= GND
One Input Bit Toggling
Four Output Bits Togging
V
CC
= Max.,Outputs Open
f
I
= 2.5MHz
50% Duty Cycle
OEx
= GND
Eight Input Bits Toggling
32 Output Bits Togging
V
IN
= V
CC
V
IN
= GND
Test Conditions
(1)
Min.
—
—
Typ.
(2)
2
230
Max.
30
320
Unit
µA
µA/
MHz
I
C
Total Power Supply Current
(6)
V
IN
= V
CC
V
IN
= GND
V
IN
= V
CC
- 0.6V
V
IN
= GND
V
IN
= V
CC
V
IN
= GND
V
IN
= V
CC
- 0.6V
V
IN
= GND
—
2.3
3.2
mA
—
2.3
3.2
—
4.6
6.4
(5)
—
4.6
6.5
(5)
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3. Per TTL driven input. All other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
ΔI
CC
D
H
N
T
+ I
CCD
(f
CP
N
CP
/2 + fiNi)
I
CC
= Quiescent Current (I
CCL
, I
CCH
and I
CCZ
)
ΔI
CC
= Power Supply Current for a TTL High Input
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
N
CP
= Number of Clock Inputs at f
CP
fi = Input Frequency
Ni = Number of Inputs at fi
4
IDT74FCT163344A/C
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
(1)
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SK(b)
t
SK(o)
Parameter
Propagation Delay
Ax to Bxx
Output Enable Time
OEx
to Bxx
Output Disable Time
OEx
to Bxx
Skew between outputs of the same bank and
same package (same transition)
(4,5)
Skew between outputs of all banks of the same
package (A1 - A8 tied together)
(4,5)
Condition
(2)
C
L
= 50pF
R
L
= 500Ω
FCT163344A
Min.
(3)
Max.
1.5
1.5
1.5
—
—
4.8
6.2
5.6
0.5
0.5
FCT163344C
Min.
(3)
Max.
1.5
1.5
1.5
—
—
4.3
5.8
5.2
0.35
0.5
Unit
ns
ns
ns
ns
ns
NOTES:
1. Propagation Delays and Enable/Disable times are with V
CC
= 3.3V ±0.3V, Normal Range. For V
CC
= 2.7V to 3.6V, Extended Range, all Propagation Delays and Enable/Disable
times should be degraded by 20%.
2. See test circuit and waveforms.
3. Minimum limits are guaranteed but not tested on Propagation Delays.
4. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
5. This parameter is guaranteed but not tested. Skew is not guaranteed when V
CC
< 0.3V.
5
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