Philips Semiconductors
Product specification
8-bit serial-in/serial or parallel-out shift
register with output latches; 3-state
AC WAVEFORMS
74HC/HCT595
handbook, full pagewidth
1/fmax
SHCP INPUT
VM
(1)
tW
tPLH
tPHL
90%
Q7' OUTPUT
10%
tTLH
VM
(1)
tTHL
MSA699
(1) HC: V
M
= 50%; V
I
= GND to V
CC
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.7
Waveforms showing the clock (SH
CP
) to output (Q
7
’) propagation delays, the shift clock pulse width and
maximum shift clock frequency.
handbook, full pagewidth
SHCP INPUT
VM
(1)
tsu
VM
(1)
1/fmax
STCP INPUT
tW
tPLH
tPHL
Qn OUTPUT
VM
(1)
MSA700
(1) HC: V
M
= 50%; V
I
= GND to V
CC
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.8
Waveforms showing the storage clock (ST
CP
) to output (Q
n
) propagation delays, the storage clock pulse
width and the shift clock to storage clock set-up time.
1998 Jun 04
12
PHILIPS [ NXP SEMICONDUCTORS ]
