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74LCX540TTR Datasheet

  • 74LCX540TTR

  • BUFFER/DRIVER|SINGLE|8-BIT|LCX-CMOS|TSSOP|20PIN|PLASTIC

  • 9頁

  • ETC

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74LCX540
LOW VOLTAGE CMOS OCTAL BUS BUFFER (3-STATE)
WITH 5V TOLERANT INPUTS AND OUTPUTS
s
s
s
s
s
s
s
s
s
s
5V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED :
t
PD
= 8.0 ns (MAX.) at V
CC
= 3V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN) at V
CC
= 3V
PCI BUS LEVELS GUARANTEED AT 24 mA
BALANCED PROPAGATION DELAYS:
t
PLH
鈮?/div>
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2.0V to 3.6V (1.5V Data
Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 540
LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD 17)
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
SOP
TSSOP
ORDER CODES
PACKAGE
SOP
TSSOP
TUBE
74LCX540M
T&R
74LCX540MTR
74LCX540TTR
DESCRIPTION
The 74LCX540 is a low voltage CMOS OCTAL
BUS BUFFER (INVERTED) fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology. It is ideal for low power
and high speed 3.3V applications; it can be
interfaced to 5V signal environment for both inputs
and outputs.
PIN CONNECTION AND IEC LOGIC SYMBOLS
The 3 STATE control gate operates as two input
AND such that if either G1 and G2 are high, all
eight outputs are in the high impedance state. In
order to enhance PC board layout the 74LCX540
offers a pinout having inputs and outputs on
opposite sides of the package.
It has same speed performance at 3.3V than 5V
AC/ACT family, combined with a lower power
consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
September 2001
1/9

74LCX540TTR 產(chǎn)品屬性

  • STMicroelectronics

  • 8

  • 3

  • Inverting

  • 3.6 V

  • 2 V

  • + 125 C

  • SMD/SMT

  • TSSOP-20

  • Reel

  • - 24 mA

  • LCX

  • CMOS

  • 24 mA

  • - 55 C

  • 8

  • 3-State

  • 9 ns at 2.7 V

  • 2500

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