IDT54/74FCT823A/B/C
HIGH-PERFORMANCE CMOS BUFFER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Symbol
Parameter
Condition(1)
tPLH
Propagation Delay
CL = 50pF
tPHL
CP to Yx (OE = LOW)
RL = 500Ω
CL = 300pF(3)
RL = 500Ω
tPZH
Output Enable Time,
CL = 50pF
tPZL
OE to Yx
RL = 500Ω
CL = 300pF(3)
RL = 500Ω
tPHZ
Output Disable Time,
CL = 5pF(3)
tPLZ
OE to Yx
RL = 500Ω
CL = 50pF
RL = 500Ω
tSU
Set-up Time HIGH or LOW, Dx to CP CL = 50pF
Set-up Time HIGH or LOW, EN to CP RL = 500Ω
tH
Hold Time HIGH or LOW, Dx to CP
tH
Hold Time HIGH or LOW, EN to CP
tPHL
Propagation Delay, CLR to Yx
tREM
Recovery Time, CLR to CP
tW
CP Pulse Width HIGH or LOW
tW
CLR Pulse Width HIGH or LOW
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. These parameters are guaranteed but not tested.
54/74FCT823A
Com'l.
Mil.
Min.(2)
Max. Min.(2)
Max.
—
10
—
11.5
—
20
—
20
—
12
—
13
—
23
—
25
—
7
—
8
—
8
—
9
4
—
4
—
2
—
2
—
2
—
2
—
—
14
—
15
6
—
7
—
7
—
7
—
6
—
7
—
54FCT823B
74FCT823C
Mil.
Com'l.
Min.(2) Max. Min.(2) Max. Unit
—
8.5
—
6
ns
—
16
— 12.5
—
9
—
7
ns
—
16
— 12.5
—
7
— 6.2
ns
—
8
— 6.5
3
—
3
—
ns
1.5
—
1.5 —
ns
0
—
0
—
ns
—
9.5
—
8
ns
6
—
6
—
ns
6
—
6
—
ns
6
—
6
—
ns
5