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PDF 74LVQ157 Data sheet ( Hoja de datos )
| Número de pieza | 74LVQ157 | |
| Descripción | LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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® 74LVQ157
LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER
s HIGH SPEED:
tPD = 5 ns (TYP.) at VCC = 3.3V
s COMPATIBLE WITH TTL OUTPUT
s LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA = 25 oC
s LOW NOISE:
VOLP = 0.2V (TYP.) at VCC = 3.3V
s 75Ω TRANSMISSION LINE OUTPUT DRIVE
CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 12 mA (MIN)
s PCI BUS LEVELS GUARANTEED AT 24mA
s BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 3.6V (1.2VData Retention)
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 157
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The LVQ157 is a low voltage CMOS QUAD
2-CHANNEL MULTIPLEXER fabricated with
sub-micron silicon gate and double-layer metal
wiring C2MOS technology. It is ideal for low
power and low noise 3.3V applications.
M
(Micro Package)
T
(TSSOP Package)
ORDER CODES :
74LVQ157M
74LVQ157T
It has better speed performance at 3.3V than 5V
LSTTL family combined with the true CMOS low
power consumption.
It consists of four 2-input digital multiplexers with
common select and strobe inputs. When strobe
input is held high selection of data is inhibit and
all the outputs become low. The SELECT
decoding determines whether the A or B inputs
get routed to their corresponding Y outputs.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
February 1999
1/8
1 page  
WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING CONDITIONS
74LVQ157
WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING CONDITIONS
5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 74LVQ157.PDF ] | |
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