Philips Semiconductors
Product specification
8-bit serial-in/serial or parallel-out shift
register with output latches; 3-state
74HC/HCT595
AC WAVEFORMS
1/f
handbook, full pagewidth
max
(1)
V
SH
CP
INPUT
M
t
t
W
t
PLH
PHL
90%
(1)
t
V
Q ' OUTPUT
M
7
10%
t
MSA699
TLH
THL
(1) HC: VM = 50%; VI = GND to VCC
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.7 Waveforms showing the clock (SHCP) to output (Q7’) propagation delays, the shift clock pulse width and
maximum shift clock frequency.
handbook, full pagewidth
(1)
V
t
SH
ST
INPUT
INPUT
M
CP
1/f
max
su
(1)
V
M
t
CP
t
W
t
PLH
PHL
(1)
V
Q
OUTPUT
M
n
MSA700
(1) HC: VM = 50%; VI = GND to VCC
HCT: VM = 1.3 V; VI = GND to 3 V.
Fig.8 Waveforms showing the storage clock (STCP) to output (Qn) propagation delays, the storage clock pulse
width and the shift clock to storage clock set-up time.
1998 Jun 04
12
NXP [ NXP ]
