NXP Semiconductors
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
DSA
D
DSB
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
CP
FF1
R
D
CP
FF2
R
D
CP
FF3
R
D
CP
FF4
R
D
CP
FF5
R
D
CP
FF6
R
D
CP
FF7
R
D
CP
FF8
R
D
CP
MR
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
001aac616
Fig 4.
Functional diagram
5. Pinning information
5.1 Pinning
74HC164
74HCT164
DSA
2
3
4
5
6
7
GND
CP
8
GND
(1)
1
terminal 1
index area
DSB
14 V
CC
13 Q7
12 Q6
11 Q5
10 Q4
9
8
001aal390
74HC164
74HCT164
DSA
DSB
Q0
Q1
Q2
Q3
GND
1
2
3
4
5
6
7
14 V
CC
13 Q7
12 Q6
11 Q5
10 Q4
9
MR
Q0
Q1
Q2
Q3
MR
CP
001aal391
Transparent top view
(1) The substrate is attached to this pad using conductive
die attach material. It can not be used as supply pin or
input. It is recommended that no connection is made at
all.
Fig 5.
Pin configuration DIP14, SO14, (T)SSOP14
Fig 6.
Pin configuration DHVQFN14
74HC_HCT164_4
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 04 — 2 February 2010
3 of 20
PHILIPS [ NXP SEMICONDUCTORS ]
