Datasheet

74AHC_AHCT164_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 24 April 2008 12 of 18
NXP Semiconductors
74AHC164; 74AHCT164
8-bit serial-in/parallel-out shift register
Test data is given in Table 9.
Definitions test circuit:
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator
C
L
= Load capacitance including jig and probe capacitance
Fig 10. Load circuitry for measuring switching times
001aah768
t
W
t
W
t
r
t
r
t
f
V
M
V
I
negative
pulse
GND
V
I
positive
pulse
GND
10 %
90 %
90 %
10 %
V
M
V
M
V
M
t
f
V
CC
DUT
R
T
V
I
V
O
C
L
G
Table 9. Test data
Type Input Load Test
V
I
t
r
, t
f
C
L
74AHC164 V
CC
≤ 3.0 ns 15 pF, 50 pF t
PLH
, t
PHL
74AHCT164 3.0 V ≤ 3.0 ns 15 pF, 50 pF t
PLH
, t
PHL