Philips Semiconductors
Dual JK flip-flop with set and reset;
positive-edge trigger
Product specification
74LVC109
FUNCTION TABLE
See note 1.
INPUT
OPERATING MODES
nSD
nRD
nCP
nJ
nK
Asynchronous set
L
H
X
X
X
Asynchronous reset
H
L
X
X
X
Undetermined
L
L
X
X
X
Toggle
Load 0 (reset)
H
H
↑
h
l
H
H
↑
l
l
Load 1 (set)
H
H
↑
h
h
Hold no change
H
H
↑
l
h
OUTPUT
nQ
nQ
H
L
L
H
H
H
q
q
L
H
H
L
q
q
Note
1. H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition;
L = LOW voltage level;
l = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition;
q = lower case letters indicate the state of the referenced output one set-up time prior to the LOW-to-HIGH
CP transition;
X = don’t care;
↑ = LOW-to-HIGH CP transition.
ORDERING INFORMATION
TYPE NUMBER
74LVC109D
74LVC109DB
74LVC109PW
TEMPERATURE
RANGE
−40 to +125 °C
−40 to +125 °C
−40 to +125 °C
PINS
16
16
16
PACKAGE
PACKAGE
SO16
SSOP16
TSSOP16
MATERIAL
plastic
plastic
plastic
CODE
SOT109-1
SOT338-1
SOT403-1
2004 Mar 18
3