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M74HCT157B1R bảng dữ liệu(PDF) 1 Page - STMicroelectronics

tên linh kiện M74HCT157B1R
Giải thích chi tiết về linh kiện  QUAD 2 CHANNEL MULTIPLEXER
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September 2001
s
HIGH SPEED:
tPD = 16ns (TYP.) at VCC = 4.5V
s
LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s
COMPATIBLE WITH TTL OUTPUTS :
VIH = 2V (MIN.) VIL = 0.8V (MAX)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 157
DESCRIPTION
The M74HCT157 is an high speed CMOS QUAD
2
CHANNEL MULTIPLEXER fabricated with
silicon gate C2MOS technology.
This device consists
of four 2-input digital
multiplexer with common select and strobe inputs.
When the STROBE(ST) input is held high,
selection of data is inhibited 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 are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HCT157
QUAD 2 CHANNEL MULTIPLEXER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HCT157B1R
SOP
M74HCT157M1R
M74HCT157RM13TR
TSSOP
M74HCT157TTR
TSSOP
DIP
SOP


Số phần tương tự - M74HCT157B1R

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
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