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PDF ( 数据手册 , 数据表 ) 74LCXHR162245

零件编号 74LCXHR162245
描述 LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
制造商 STMicroelectronics
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74LCXHR162245 数据手册, 描述, 功能
74LCXHR162245
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
WITH 5V TOLERANT INPUTS AND OUTPUT (3-STATE)
s 5V TOLERANT INPUTS AND OUTPUTS
s HIGH SPEED:
tPD = 4.7 ns (MAX.) at VCC = 3V
s POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 12mA (MIN) at VCC = 3V
s PCI BUS LEVELS GUARANTEED AT 12 mA
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
s OPERATING VOLTAGE RANGE:
VCC(OPR) = 2.0V to 3.6V (1.5V Data
Retention)
s BUS HOLD PROVIDED ON BOTH SIDES
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16245
s LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD 17)
s ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74LCXHR162245 is a low voltage CMOS 16
BIT BUS TRANSCEIVER (3-STATE) fabricated
with sub-micron silicon gate and double-layer
metal wiring C2MOS 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.
This IC is intended for two-way asynchronous
communication between data buses; the direction
of data transmission is determined by DIR input.
The two enable inputs nG can be used to disable
the device so that the buses are effectively isolat-
ed.
Bus hold on data inputs is provided in order to
eliminate the need for external pull-up or
pull-down resistor.
All outputs, which are designed to sink up to
12mA, include 26resistors to reduce overshoot
and undershoot.
All inputs and outputs are equipped with protec-
tion circuits against static discharge, giving them
2KV ESD immunity and transient excess voltage.
TSSOP
ORDER CODES
PACKAGE
TUBE
TSSOP
PIN CONNECTION
T&R
74LCXHR162245TTR
July 2003
1/10







74LCXHR162245 pdf, 数据表
74LCXHR162245
DIM.
A
A1
A2
b
c
D
E
E1
e
K
L
MIN.
0.05
0.17
0.09
12.4
6.0
0.50
TSSOP48 MECHANICAL DATA
mm.
TYP
0.9
8.1 BSC
0.5 BSC
MAX.
1.2
0.15
0.27
0.20
12.6
6.2
0.75
MIN.
inch
TYP.
0.002
0.0067
0.0035
0.488
0.236
0.020
0.035
0.318 BSC
0.0197 BSC
MAX.
0.047
0.006
0.011
0.0079
0.496
0.244
0.030
A A2
A1 b
e
D
K
c
L
E
E1
PIN 1 IDENTIFICATION
1
8/10
7065588C














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