74lcx16821 Fairchild Semiconductor, 74lcx16821 Datasheet - Page 5

• Manufacturer Part Number: 74lcx16821
• Description: Low Voltage 20-bit D-type Flip-flop With 5v Tolerant Inputs And Outputs
• Manufacturer: Fairchild Semiconductor

AC LOADING and WAVEFORMS
Waveform for Inverting and Non-Inverting Functions
Propagation Delay. Pulse Width and t
3-STATE Output Low Enable and
Disable Times for Logic
FIGURE 1. AC Test Circuit (C
Symbol
V
V
V
V
mi
mo
x
y
(Input Characteristics; f =1MHz, t
Test
t
t
t
3.3V
1.5V
1.5V
V
V
PLH
PZL
PZH
rec
OL
OH
, t
, t
,t
Waveforms
PHZ
PLZ
PHL
0.3V
0.3V
0.3V
FIGURE 2. Waveforms
Generic for LCX Family
Switch
Open
6V at V
V
GND
L
CC
includes probe and jig capacitance)
2.7V
1.5V
1.5V
V
V
x 2 at V
OL
OH
5
CC
Setup Time, Hold Time and Recovery Time for Logic
0.3V
0.3V
V
CC
CC
3.3
R
2.5
= t
0.3V
3-STATE Output High Enable and
F
= 3ns)
2.5V
V
V
V
V
0.2V
Disable Times for Logic
CC
CC
OL
OH
/2
/2
0.15V
0.15V
0.2V
t
rise
and t
fall
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