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74LVX3245M Datasheet

  • 74LVX3245M

  • OCTAL DUAL SUPPLY BUS TRANSCEIVER

  • 179.74KB

  • 10頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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74LVX3245
OCTAL DUAL SUPPLY BUS TRANSCEIVER
s
s
s
s
s
s
s
HIGH SPEED :
t
PD
= 8ns (MAX.) at T
A
=25擄C
V
CCA
= 3.3V V
CCB
= 5.0V
LOW POWER DISSIPATION:
I
CCA
= I
CCB
= 5碌A(chǔ)(MAX.) at T
A
=25擄C
LOW NOISE: V
OLP
=0.3V (TYP.) at V
CC
=3.3V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
鈮?/div>
t
PHL
OPERATING VOLTAGE RANGE:
V
CCA
(OPR) = 2.7V to 3.6V (1.2V Data Retention)
V
CCB
(OPR) = 4.5V to 5.5V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 3245
IMPROVED LATCH-UP IMMUNITY
SOP
TSSOP
ORDER CODES
PACKAGE
SOP
TSSOP
TUBE
74LVX3245M
T&R
74LVX3245MTR
74LVX3245TTR
DESCRIPTION
The 74LVX3245 is a dual supply low voltage
CMOS OCTAL BUS TRANSCEIVER fabricated
with sub-micron silicon gate and double-layer
metal wiring C
2
MOS technology. Designed for use
as an interface between a 5V bus and a 3.3V bus
in a mixed 5V/3.3V supply systems, it achieves
high speed operation while maintaining the CMOS
low power dissipation.
This IC is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
The A-port interfaces with the 3V bus, the B-port
with the 5V bus.
All inputs are equipped with protection circuits
against static discharge, giving them 2KV ESD
immunity and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/10

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