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Número de pieza | UT54ACS253 | |
Descripción | Dual 4-Input Multiplexers | |
Fabricantes | Aeroflex Circuit Technology | |
Logotipo | ||
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UT54ACS253/UT54ACTS253
Dual 4-Input Multiplexers, Three-State Outputs
Datasheet
November 2010
www.aeroflex.com/logic
FEATURES
Permits multiplexing from N lines to 1 line
Performs parallel-to-serial conversion
1.2μ CMOS
- Latchup immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 16-pin DIP
- 16-lead flatpack
UT54ACS253 - SMD 5962-96574
UT54ACTS253 - SMD 5962-96575
DESCRIPTION
The UT54ACS253 and the UT54ACTS253 are 1-line to 4-line
multiplexers that contain drivers to supply full binary decoding.
Separate output control inputs are provided for each of the two
four-line sections.
Use the three-state outputs to drive data lines in bus-organized
systems. With all but one of the common outputs disabled the
low-impedance of the single enable output will drive the bus
line to a high or low logic level. Each output has its own strobe
(G).
The devices are characterized over full military temperature
range of -55°C to +125°C.
FUNCTION TABLE
SELECT
INPUTS
DATA INPUTS
OUTPUT OUTPUT
CONTROL
B A C0 C1 C2 C3
G
Y
XX X X X X
H
Z
LL
L
X
X
X
L
L
LL H X X X
L
H
LH X L X X
L
L
LH X H X X
L
H
HL X X L X
L
L
HL X X H X
L
H
HH X X X L
L
L
HH X X X H
L
H
PINOUTS
16-Pin DIP
Top View
1G 1 16 VDD
B 2 15 2G
1C3 3 14 A
1C2 4 13 2C3
1C1 5 12 2C2
1C0 6 11 2C1
1Y 7 10 2C0
VSS 8 9 2Y
16-Lead Flatpack
Top View
1G 1 16 VDD
B 2 15 2G
1C3 3 14 A
1C2 4 13 2C3
1C1 5 12 2C2
1C0 6 11 2C1
1Y 7 10 2C0
VSS 8 9 2Y
LOGIC SYMBOL
A (14)
(2)
B
0 G 0---
13
(1)
1G
(6)
1C0
(5)
1C1
(4)
1C2
(3)
1C3
(15)
2G
(10)
2C0
(11)
2C1
2C2 (12)
(13)
2C3
EN MUX
0
1
2
3
(7)
1Y
(9)
2Y
Note:
1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.
1
1 page Notes:
1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, -
50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified range, but are
guaranteed to VIH(min) and VIL(max).
2. Supplied as a design limit but not guaranteed or tested.
3. Per MIL-PRF-38535, for current density ≤ 5.0E5 amps/cm2, the maximum product of load capacitance (per output buffer) times frequency should not exceed 3,765
pF/MHz.
4. Not more than one output may be shorted at a time for maximum duration of one second.
5. Capacitance measured for initial qualification and when design changes may affect the value. Capacitance is measured between the designated terminal and VSS at
frequency of 1MHz and a signal amplitude of 50mV rms maximum.
6. Maximum allowable relative shift equals 50mV.
7. All specifications valid for radiation dose ≤ 1E6 rads(Si).
8. Power does not include power contribution of any TTL output sink current.
9. Power dissipation specified per switching output.
10. This value is guaranteed based on characterization data, but not tested.
5
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet UT54ACS253.PDF ] |
Número de pieza | Descripción | Fabricantes |
UT54ACS253 | Dual 4-Input Multiplexers | Aeroflex Circuit Technology |
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