Datasheet
74HC_HCT597 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 3 — 15 April 2014 14 of 23
NXP Semiconductors
74HC597; 74HCT597
8-bit shift register with input flip-flops
Measurement points are given in Table 8.
Fig 12. Hold and set-up times for (DS), (Dn) inputs to (SHCP), (STCP) inputs
DDD
SRVLWLYH
'6'QLQSXW
6+&3
LQSXW
9
0
9
0
9
0
*1'
9
,
*1'
9
,
*1'
9
,
QHJDWLYH
'6'QLQSXW
67&3LQSXW
9
0
*1'
9
,
W
K
W
VX
W
K
W
VX
Measurement points are given in Table 8.
Fig 13. Set-up times for (PL) input to (SHCP) input
DDD
3/LQSXW
6+&3
LQSXW
9
0
9
0
*1'
9
,
*1'
9
,
W
K
W
VX
Table 8. Measurement points
Type Input Output
V
M
V
I
V
M
74HC597 0.5 V
CC
GND to V
CC
0.5 V
CC
74HCT597 1.3 V GND to 3 V 1.3 V