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M54HC540 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. M54HC540
Description  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC540: INVERTED - HC541 NON INVERTED
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M54HC540 Datasheet(HTML) 1 Page - STMicroelectronics

 
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M54HC540/541
M74HC540/541
October 1993
HC540: INVERTED - HC541 NON INVERTED
OCTAL BUS BUFFER WITH 3 STATE OUTPUTS
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXM1R
M74HCXXXB1R
M74HCXXXC1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTION (top view)
.
HIGH SPEED
tPD = 10 ns (TYP.) at VCC =5V
.
LOW POWER DISSIPATION
ICC =4
µA (MAX.) at TA =25 oC
.
HIGH NOISE IMMUNITY
VNIH =VINL =28 % VCC (MIN.)
.
OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
|IOH|= IOL = 6 mA (MIN)
.
BALANCED PROPAGATION DELAYS
tPLH =tPHL
.
WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2V to 6V
.
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS540/541
DESCRIPTION
The M54/74HC540 and HC541 are high speed
CMOS
OCTAL
BUS
BUFFERS
(3-STATE)
fabricated in silicon gate C
2MOS technology. They
have the same high speed performance of LSTTL
combined with true CMOS low power consumption.
The HC540 is an inverting buffer and HC541 is a non
inverting buffer.
The 3 STATE control gate operates as a two input
AND such that if either G1 and G2 are high, all eight
output are in the high impedance state. In order to
enhance PC board layout, the HC540 and HC541
offers a pinout having inputs and outputs on
opposite sides of the package.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
HC541
HC540
1/12


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