HD74HC109 Datasheet, PDF (2/8 Pages) Hitachi Semiconductor – Dual J-K Flip-Flops (with Preset and Clear)

HD74HC109
Pin Arrangement
1CLR 1
1J 2
1K 3
1CK 4
1PR 5
1Q 6
1Q 7
GND 8
J _CK K
PR CLR
QQ
K _CK J
CLR PR
QQ
(Top view)
16 VCC
15 2CLR
14 2J
13 2K
12 2CK
11 2PR
10 2Q
9 2Q
Logic Diagram (1/2)
PR
CLR
C
C
Q
J
K
C
Q
C
C
C
C
C
CK
C
C
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage range
VCC
–0.5 to 7.0
V
Input / Output voltage
Vin, Vout
–0.5 to VCC +0.5
V
Input / Output diode current
IIK, IOK
±20
mA
Output current
IO
±25
mA
VCC, GND current
ICC or IGND
±50
mA
Power dissipation
PT
500
mW
Storage temperature
Tstg
–65 to +150
°C
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Rev.2.00, Oct 11, 2005 page 2 of 7