參數(shù)資料
型號: 74HC109PW
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Dual JK flip-flop with set and reset; positive-edge trigger
中文描述: HC/UH SERIES, DUAL POSITIVE EDGE TRIGGERED J-KBAR FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO16
文件頁數(shù): 4/9頁
文件大?。?/td> 65K
代理商: 74HC109PW
1997 Nov 25
4
Philips Semiconductors
Product specification
Dual JK flip-flop with set and reset;
positive-edge trigger
74HC/HCT109
Fig.4 Functional diagram.
FUNCTION TABLE
Notes
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
I = 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
OPERATING
MODE
INPUTS
OUTPUTS
S
D
L
H
L
H
H
H
H
R
D
H
L
L
H
H
H
H
CP
J
K
Q
Q
asynchronous set
asynchronous reset
undetermined
toggle
load “0” (reset)
load “1” (set)
hold “no change”
X
X
X
X
X
X
h
l
h
l
X
X
X
l
l
h
h
H
L
H
q
L
H
q
L
H
H
q
H
L
q
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
Fig.5 Logic diagram (one flip-flop).
handbook, full pagewidth
MBK217
C
C
C
C
C
K
J
CP
S
R
C
C
C
C
C
Q
Q
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