English
Language : 

74F842 Datasheet, PDF (8/12 Pages) NXP Semiconductors – Bus interface latches
◁
Philips Semiconductors
10-bit bus interface latches, non-inverting/inverting
(3-State)
Product data
74F841/74F842
AC WAVEFORMS
For all waveforms, VM = 1.5 V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
Dn, LE
Qn
VM
VM
tPLH
tPHL
VM
VM
Dn, LE
Qn
VM
VM
tPHL
tPLH
VM
VM
SF01303
Waveform 1. Propagation delay, non-inverting path
SF01304
Waveform 2. Propagation delay, inverting path
Dn
VM
VM
ts(H) th(H)
VM
VM
ts(L) th(L)
LE
VM
VM
VM
tw(H)
SF01306
Waveform 3. Data set-up and hold times
OEn
Qn, Qn
VM
tPZH
VM
tPHZ
VM
VOH – 0.3 V
0V
SF00509
Waveform 4. 3-State Output Enable time to HIGH level
and Output Disable time from HIGH level
OEn
VM
VM
Qn, Qn
tPZL
tPLZ
VM
3.5V
VOL + 0.3 V
SF00510
Waveform 5. 3-State Output Enable time to LOW level
and Output Disable time from LOW level
2004 Jan 23
8
 ▷