HD74HC673 Datasheet, PDF (2/8 Pages) Hitachi Semiconductor – 16-bit Shift Register

HD74HC673
Function Table
Inputs
Shift Register Functions
Storage Register
Mode/ SER/
Read from Write into Parallel Functions
CS R/W SHCLK STRCLR STRCLK Q₁₅
H XX
X
X
Z
Shift Serial Output Serial Input Load
No No
No
No
Clear
Load
No
X XX
L
X
Yes
LL
X
X
Z
Yes No
Yes
No
L HX
X
X
Q₁₅
Yes
LH
X
L
Q_14n Yes Yes
LH
L
H
L
No Yes
No
No
No
No
No
Yes
Yes
No
LH
H
H
Y_15n No Yes
L LX
H
Z
No
Yes
No
No
No
No
Yes
Pin Arrangement
CS 1
SH CLK 2
R/W 3
STRCLR 4
Mode/STRCLK 5
SER/Q15 6
Y0 7
Y1 8
Y2 9
Y3 10
Y4 11
GND 12
24 VCC
23 Y15
22 Y14
21 Y13
20 Y12
19 Y11
18 Y10
17 Y9
16 Y8
15 Y7
14 Y6
13 Y5
(Top view)
2