m74hc540 STMicroelectronics, m74hc540 Datasheet

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m74hc540

Manufacturer Part Number
m74hc540
Description
Octal Bus Buffer With 3 State Outputs Hc540 Inverted - Hc541 Non Inverted
Manufacturer
STMicroelectronics
Datasheet

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DESCRIPTION
The 74HC540 is an advanced high-speed CMOS
OCTAL BUS BUFFER (3-STATE) fabricated with
silicon C
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
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 540
PD
CC
PLH
OH
NIH
CC
= 9ns (TYP.) at V
= 4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
2
MOS technology. The M74HC541 is an
t
PHL
OL
NIL
= 6mA (MIN)
= 28 % V
CC
A
CC
=25°C
= 6V
(MIN.)
WITH 3 STATE OUTPUTS (INVERTED)
ORDER CODES
order to enhance PC board layout the M74HC540
offer 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.
PACKAGE
TSSOP
SOP
DIP
DIP
OCTAL BUS BUFFER
M74HC540M1R
M74HC540B1R
TUBE
SOP
M74HC540
M74HC540RM13TR
M74HC540TTR
T & R
TSSOP
1/10

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m74hc540 Summary of contents

Page 1

... WITH 3 STATE OUTPUTS (INVERTED) DIP ORDER CODES PACKAGE DIP SOP M74HC540M1R TSSOP order to enhance PC board layout the M74HC540 offer 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. M74HC540 SOP ...

Page 2

... M74HC540 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE Don’t Care Z : High Impedance ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 3

... GND 6 Value -55 to 125 = 2. 1000 = 4. 500 = 6. 400 Value = 25°C -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min. 1.5 1.5 3.15 3.15 4.2 4.2 0.5 0.5 1.35 1.35 1.8 1.8 2.0 1.9 1.9 4.5 4.4 4.4 6.0 5.9 5.9 4.31 4.13 4.10 5.8 5.63 5.60 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.17 0.26 0.33 0.18 0.26 0.33 0 M74HC540 Unit ° Unit Max. V 0.5 1.35 V 1.8 V 0.1 0.1 0.1 V 0.40 0. 3/10 ...

Page 4

... M74HC540 AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time t t High Impedance PZL PZH Output Enable Time t t High Impedance PLZ PHZ Output Disable Time CAPACITIVE CHARACTERISTICS Symbol Parameter V C Input Capacitance IN C Power Dissipation ...

Page 5

... TEST CIRCUIT PLH PHL PZL PLZ PZH PHZ C = 50pF/150pF or equivalent (includes jig and probe capacitance equivalent pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle) TEST M74HC540 SWITCH Open V CC GND 5/10 ...

Page 6

... M74HC540 WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) 6/10 ...

Page 7

... Plastic DIP-20 (0.25) MECHANICAL DATA mm. DIM. MIN. a1 0.254 B 1. 22. TYP MAX. MIN. 0.010 1.65 0.055 0.45 0.25 25.4 8.5 2.54 7.1 3.93 3.3 1.34 M74HC540 inch TYP. MAX. 0.065 0.018 0.010 1.000 0.335 0.100 0.900 0.280 0.155 0.130 0.053 P001J 7/10 ...

Page 8

... M74HC540 DIM. MIN 0 0. 12.60 E 10. 7. 8/10 SO-20 MECHANICAL DATA mm. TYP MAX. 2.65 0.2 2.45 0.49 0.32 0.5 45° (typ.) 13.00 10.65 1.27 11.43 7.60 1.27 0.75 8° (max.) inch MIN. TYP. MAX. 0.104 0.004 0.008 0.096 0.014 0.019 0.009 0.012 0.020 0.496 0.512 0.393 0.419 0.050 0.450 0.291 0.300 0.020 0.050 ...

Page 9

... PIN 1 IDENTIFICATION 1 mm. TYP MAX. MIN. 1.2 0.15 0.002 1 1.05 0.031 0.30 0.007 0.20 0.004 6.5 6.6 0.252 6.4 6.6 0.244 4.4 4.48 0.169 8° 0.60 0.75 0.018 M74HC540 inch TYP. MAX. 0.047 0.004 0.006 0.039 0.041 0.012 0.0089 0.256 0.260 0.252 0.260 0.173 0.176 0.0256 BSC 0° 8° 0.024 0.030 0087225C 9/10 ...

Page 10

... M74HC540 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. Specifications mentioned in this publication are subject to change without notice ...

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