參數(shù)資料
型號: 5962R9653401QXX
元件分類: 鎖存器
英文描述: AC SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, CDFP14
封裝: BOTTOM BRAZED, CERAMIC, DFP-14
文件頁數(shù): 1/10頁
文件大?。?/td> 233K
代理商: 5962R9653401QXX
1
Standard Products
UT54ACS74/UT54ACTS74
Dual D Flip-Flops with Clear & Preset
Datasheet
November 2010
www.aeroflex.com/logic
FEATURES
1.2μ CMOS
- Latchup immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 14-pin DIP
- 14-lead flatpack
UT54ACS74 - SMD 5962-96534
UT54ACTS74 - SMD 5962-96535
DESCRIPTION
The UT54ACS74 and the UT54ACTS74 contain two indepen-
dent D-type positive triggered flip-flops. A low level at the
Preset or Clear inputs sets or resets the outputs regardless of the
levels of the other inputs. When Preset and Clear are inactive
(high), data at the D input meeting the setup time requirement
is transferred to the outputs on the positive-going edge of the
clock pulse. Following the hold time interval, data at the D
input may be changed without affecting the levels at the outputs.
The devices are characterized over full military temperature
range of -55
°C to +125°C.
FUNCTION TABLE
Note:
1. The output levels in this configuration are not guaranteed to meet the minimum
levels for VOH if the lows at preset and clear are near VIL maximum. In
addition, this configuration is nonstable; that is, it will not persist when either
preset or clear returns to its inactive (high) level.
PINOUTS
14-Pin DIP
Top View
14-Lead Flatpack
Top View
LOGIC SYMBOL
INPUTS
OUTPUT
PRE
CLR
CLK
D
Q
L
H
X
H
L
H
L
X
L
H
L
X
H 1
H
H
L
H
L
H
L
X
Qo
1
2
3
4
5
7
6
14
13
12
11
10
8
9
CLR1
D1
CLK1
PRE1
Q1
VSS
VDD
CLR2
D2
CLK2
PRE2
Q2
1
2
3
4
5
7
6
14
13
12
11
10
8
9
VDD
CLR2
D2
CLK2
PRE2
Q2
CLR1
D1
CLK1
PRE1
Q1
VSS
Q1
(5)
(6)
Q1
Q2
(9)
(8)
Q2
(4)
PRE1
(3)
CLK1
(2)
D1
(1)
CLR1
(10)
PRE2
(11)
CLK2
(12)
D2
(13)
CLR2
Note:
1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC
Publication 617-12.
S
C1
D1
R
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