IDT54/74FCT162344AT/CT/ET
FAST CMOS ADDRESS/CLOCK DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS
ADDRESS/CLOCK
DRIVER
FEATURES:
−
−
−
−
−
−
−
−
−
−
−
0.5 MICRON CMOS Technology
Ideal for address line driving and clock distribution
8 banks with 1:4 fanout and 3-state
Typical t
SK
(o) (Output Skew) < 500ps
Balanced Output Drivers:
•
±24mA (commercial)
•
±16mA (military)
Reduced system switching noise
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP
and 25 mil pitch CERPACK packages
Extended commercial range of -40°C to +85°C
V
CC
= 5V ±10%
Low input and output leakage
≤1µ
A (max.)
IDT54/74FCT162344AT/CT/ET
DESCRIPTION:
The FCT162344AT/CT/ET 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 FCT162344AT/CT/ET has balanced output drive with current
limiting resistors. This offers 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 and TTL output swings also
ensure reduced noise levels. All inputs are designed with hysteresis for
improved noise margins.
FUNCTIONAL BLOCK DIAGRAM
1
29
OE
1
OE
3
2
8
6
B
11
A
5
B
14
36
34
B
51
A
1
30
B
54
9
14
13
B
21
A
6
B
24
42
41
B
61
A
2
37
B
64
OE
2
28
56
OE
4
16
B
31
A
7
43
48
B
71
A
3
15
20
B
34
44
B
74
23
21
27
B
41
A
8
B
44
49
55
B
81
A
4
51
B
84
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1
c
1999 Integrated Device Technology, Inc.
AUGUST 1999
DSC-3069/4
IDT54/74FCT162344AT/CT/ET
FAST CMOS ADDRESS/CLOCK DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
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
OE2
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
SO56-1
SO56-2
SO56-3
E56-1
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
OE3
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
TERM(2)
V
TERM(3)
T
STG
I
OUT
Description
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Max
–0.5 to +7
–0.5 to V
CC
+0.5
–65 to +150
–60 to +120
Unit
V
V
°C
mA
5v16-link
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. All device terminals except FCT162XXXT Output and I/O terminals.
3. Output and I/O terminals for FCT162XXXT.
CAPACITANCE
(T
A
= +25
O
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
8
Unit
pF
pF
5v16-link
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
OEx
Ax
Bxx
Description
3–State Output Enable Inputs (Active LOW)
Inputs
3-State Outputs
FUNCTION TABLE
(1)
Inputs
OEx
L
L
H
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
Ax
L
H
X
Outputs
Bxx
L
H
Z
SSOP/ TSSOP/ TVSOP/ CERPACK
TOP VIEW
2
IDT54/74FCT162344AT/CT/ET
FAST CMOS ADDRESS/CLOCK DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
= -40°C to +85°C, V
CC
= 5.0V ±10%; Military: T
A
= -55°C to +125°C, V
CC
= 5.0V ±10%
Symbol
V
IH
V
IL
I
IH
I
IL
I
OZH
I
OZL
V
IK
I
OS
V
H
I
CCL
I
CCH
I
CCZ
Parameter
Input HIGH Level
Input LOW Level
Input HIGH Current (Input pins)
(4)
Input HIGH Current (I/O pins)
(4)
Input LOW Current (Input pins)
(4)
Input LOW Current (I/O pins)
(4)
High Impedance Output Current
(3-State Output pins)
(4)
Clamp Diode Voltage
Short Circuit Current
Input Hysteresis
Quiescent Power Supply Current
V
CC
= Max.
V
IN
= GND or V
CC
V
CC
= Min., I
IN
= –18mA
V
CC
= Max., V
O
= GND
(3)
—
V
CC
= Max.
V
O
= 2.7V
V
O
= 0.5V
V
I
= GND
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max.
V
I
= V
CC
Min.
2
—
—
—
—
—
—
—
—
–80
—
—
Typ.
(2)
—
—
—
—
—
—
—
—
–0.7
–140
100
5
Max.
—
0.8
±1
±1
±1
±1
±1
±1
–1.2
–250
—
500
V
mA
mV
µA
µA
Unit
V
V
µA
OUTPUT DRIVE CHARACTERISTICS
Symbol
I
ODL
I
ODH
V
OH
V
OL
Parameter
Output LOW Current
Output HIGH Current
Output HIGH Voltage
Output LOW Voltage
Test Conditions
(1)
V
CC
= 5V, V
IN
= V
IH
or V
IL
, V
O
= 1.5V
(3)
V
CC
= 5V, V
IN
= V
IH
or V
IL
, V
O
= 1.5V
(3)
V
CC
= Min.
V
IN
= V
IH
or V
IL
V
CC
= Min.
V
IN
= V
IH
or V
IL
I
OH
= –16mA MIL
I
OH
= –24mA COM’L
I
OL
= 16mA MIL
I
OL
= 24mA COM’L
—
0.3
0.55
V
Min.
60
–60
2.4
Typ.
(2)
115
–115
3.3
Max.
200
–200
—
Unit
mA
mA
V
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +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. The test limit for this parameter is ±5µA at T
A
= -55°C.
3
IDT54/74FCT162344AT/CT/ET
FAST CMOS ADDRESS/CLOCK DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
∆I
CC
I
CCD
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current
(4)
V
CC
= Max.
V
IN
= 3.4V
(3)
V
CC
= Max.
Outputs Open
OEx
= GND
One Input Bit Toggling
Four Output Bits Toggling
50% Duty Cycle
V
CC
= Max.
Outputs Open
fi = 10MHz
50% Duty Cycle
OEx
= GND
One Input Bit Toggling
Four Output Bits Toggling
V
CC
= Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
OEx
= GND
Eight Input Bits Toggling
Thirty Two Output Bits Toggling
V
IN
= V
CC
V
IN
= GND
Test Conditions
(1)
Min.
—
—
Typ.
(2)
0.5
170
Max.
1.5
220
Unit
mA
µ A/
MHz
I
C
Total Power Supply Current
(6)
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
V
IN
= GND
—
1.7
2.7
mA
—
2
3.5
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
V
IN
= GND
—
3.4
4.9
(5)
—
5.4
10.9
(5)
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V). 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
+
∆I
CC
D
H
N
T
+ I
CCD
(f
CP
N
CP
/2 + f
i
N
i
)
I
CC
= Quiescent Current (I
CCL
,
I
CCH
and I
CCZ
)
∆I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
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
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
4
IDT54/74FCT162344AT/CT/ET
FAST CMOS ADDRESS/CLOCK DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT162344AT
Com'l.
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
SK1
(o)
t
SK2
(o)
Parameter
Propagation Delay
Ax to Bxx
Output Enable Time
OEx
to Bx
Output Disable Time
OEx
to Bx
Skew between outputs of same bank and
same package (same transition)
(3)
Skew between outputs of all banks of same
package (A1 thru A8 tied together)
(3)
Mil.
FCT162344CT
Com'l.
Mil.
FCT162344ET
Com'l.
Mil.
Condition
(1)
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Min
.
(2)
Max
.
Unit
C
L
= 50pF
1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.6 1.5 3.8
—
—
ns
R
L
= 500Ω
1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 1.5
5
—
—
ns
1.5
—
—
5.6
0.5
0.5
1.5
—
—
5.9
0.5
0.5
1.5
—
—
5.2
0.35
0.5
1.5
—
—
5.7
0.35
0.5
1.5
—
—
4.6
0.25
0.5
—
—
—
—
—
—
ns
ns
ns
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
5
京公网安备 11010802033920号
EEWORLD
