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零件编号 | 74LVQ157T | ||
描述 | LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER | ||
制造商 | STMicroelectronics | ||
LOGO | |||
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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
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74LVQ157
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a trademark of STMicroelectronics
© 1999 STMicroelectronics – Printed in Italy – All Rights Reserved
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页数 | 8 页 | ||
下载 | [ 74LVQ157T.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
74LVQ157 | LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER | STMicroelectronics |
74LVQ157 | Low Voltage Quad 2-Input Multiplexer | Fairchild Semiconductor |
74LVQ157M | LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER | STMicroelectronics |
74LVQ157SC | Low Voltage Quad 2-Input Multiplexer | Fairchild Semiconductor |
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