74HC194 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 3 — 29 November 2016 10 of 17
NXP Semiconductors
74HC194
4-bit bidirectional universal shift register
Measurement points are given in Table 8.
The shaded areas indicate when the input is permitted to
change for predictable output performance.
Measurement points are given in Table 8.
The shaded areas indicate when the input is permitted to
change for predictable output performance.
Fig 10. The set-up and hold times from the data inputs
(Dn, DSR and DSL) to the clock (CP)
Fig 11. The set-up and hold times from the mode
control inputs (Sn) to the clock input
DDD
&3LQSXW
9
,
9
,
*1'
*1'
'Q'65'6/
LQSXW
9
0
9
0
W
K
W
K
W
VX
W
VX
,
9
,
*1'
*1'
LQSXW
LQSXW
9
0
9
0
W
K
W
K
W
VX
W
VX
Table 8. Measurement points
Input Output
V
M
V
I
V
M
0.5 V
CC
GND to V
CC
0.5 V
CC
