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M74HC540 Datasheet

OCTAL BUS BUFFER

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M74HC540 pdf
M74HC540
OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (INVERTED)
s HIGH SPEED:
tPD = 9ns (TYP.) at VCC = 6V
s LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
)VNIH = VNIL = 28 % VCC (MIN.)
t(ss SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
ucs BALANCED PROPAGATION DELAYS:
dtPLH tPHL
ros WIDE OPERATING VOLTAGE RANGE:
PVCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
te74 SERIES 540
oleDESCRIPTION
sThe 74HC540 is an advanced high-speed CMOS
bOCTAL BUS BUFFER (3-STATE) fabricated with
Osilicon C2MOS technology. The M74HC541 is an
-inverting buffer.
t(s)The 3-STATE control gate operates as a two input
AND such that if either G1 and G2 are high, all
ceight output are in the high impedance state. In
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC540B1R
M74HC540M1R
T&R
M74HC540RM13TR
M74HC540TTR
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.
Obsolete ProduPIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
1/10


STMicroelectronics Electronic Components Datasheet

M74HC540 Datasheet

OCTAL BUS BUFFER

No Preview Available !

M74HC540 pdf
M74HC540
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 19
2, 3, 4, 5, 6,
7, 8, 9
18, 17, 16,
15, 14, 13,
12, 11
10
20
SYMBOL
G1, G2
A1 to A8
NAME AND FUNCTION
Output Enable Inputs
Data Inputs
Y1 to Y8 Bus Outputs
GND
VCC
Ground (0V)
Positive Supply Voltage
t(s)TRUTH TABLE
roducG1
PH
teX
L
leL
soX : Don’t Care
Z : High Impedance
INPUT
G2
X
H
L
L
ObABSOLUTE MAXIMUM RATINGS
) -Symbol
Parameter
t(sVCC Supply Voltage
ucVI DC Input Voltage
dVO DC Output Voltage
roIIK DC Input Diode Current
PIOK DC Output Diode Current
teIO DC Output Current
leICC or IGND DC VCC or Ground Current
oPD Power Dissipation
bsTstg Storage Temperature
O TL Lead Temperature (10 sec)
OUTPUT
An Yn
XZ
XZ
HL
LH
Value
-0.5 to +7
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
± 20
± 20
± 35
± 70
500(*)
-65 to +150
300
Unit
V
V
V
mA
mA
mA
mA
mW
°C
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
2/10


Part Number M74HC540
Description OCTAL BUS BUFFER
Maker ST Microelectronics
Total Page 10 Pages
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