UT54ACS273E Datasheet, PDF (1/10 Pages) Aeroflex Circuit Technology – Octal D-Flip-Flops with Clear

UT54ACS273E
Octal D-Flip-Flops with Clear
March 2015
www.aeroflex.com/Logic
Datasheet
FEATURES
• Contains eight flip-flops with single-rail outputs
• Buffered clock and direct clear inputs
• Individual data input to each flip-flop
• Applications include:
- Buffer/storage registers, shift registers and pattern gener-
ators
• 0.6μm CRH CMOS process
- Latchup immune
• High speed
• Low power consumption
• Wide power supply operating range from 3.0V to 5.5V
• Available QML Q or V processes
• 20-lead flatpack
• UT54ACS273E - SMD 5962-96578
DESCRIPTION
The UT54ACS273E is a performance and voltage enhanced
version of the UT54ACS273 positive-edge-triggered D-type
flip-flop with a direct clear input.
Information at the D inputs meeting the setup time requirements
is transferred to the Q outputs on the positive-going edge of the
clock pulse. When the clock input is at either the high or low
level, the D input signal has no effect at the output.
The device is characterized over full HiRel temperature range
of -55°C to +125°C.
FUNCTION TABLE
INPUTS
OUTPUT
CLR
CLK
D_X
Q_X
L
X
X
L
H
↑
H
H
H
↑
L
L
H
L
X
No Change
PINOUT
20-Lead Flatpack
TopView
CLR
1Q
1D
2D
2Q
3Q
3D
4D
4Q
V_SS
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
V_DD
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
LOGIC SYMBOL
CLR ⁽¹⁾
R
CLK ⁽¹¹⁾
C1
(3)
1D
1D
2D ⁽⁴⁾
3D ⁽⁷⁾
4D ⁽⁸⁾
5D ⁽¹³⁾
6D ⁽¹⁴⁾
7D ⁽¹⁷⁾
8D ⁽¹⁸⁾
(2)
1Q
(5) _2Q
(6) _3Q
(9) _4Q
(12) _5Q
(15) _6Q
(16) _7Q
(19) _8Q
Note:
1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC
Publication 617-12.
36-00-04-000
Ver. 1.0.0
1
Aeroflex Microelectronics Solutions - HiRel