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74LCXH2245WM Datasheet

  • 74LCXH2245WM

  • Low Voltage Bidirectional Transceiver with Bushold and 26з ...

  • 202.60KB

  • 11頁

  • FAIRCHILD

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74LCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26鈩?Series Resistors in B Outputs
October 2000
Revised September 2001
74LCXH2245
Low Voltage Bidirectional Transceiver with Bushold
and 26
鈩?/div>
Series Resistors in B Outputs
General Description
The LCXH2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The device is designed for low voltage
(2.5V and 3.3V) V
CC
applications. The T/R input deter-
mines the direction of data flow through the device. The OE
input disables both the A and B ports by placing them in a
high impedance state. The 26
鈩?/div>
series resistor in the B Port
output helps reduce output overshoot and undershoot.
The LCXH2245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing CMOS low power dissipation.
The LCXH2245 data inputs include active bushold circuitry,
eliminating the need for external pull-up resistors to hold
unused or floating data inputs at a valid logic level.
Features
s
5V tolerant control inputs
s
2.3V鈥?.6V V
CC
specifications provided
s
Bushold on inputs eliminates the need for external
pull-up/pull-down resistors
s
7.0 ns t
PD
max (V
CC
=
3.3V), 10
碌
A I
CC
max
s
Power down high impedance outputs
s
鹵
12 mA output drive B Port (V
CC
=
3.0V)
s
Implements patented noise/EMI reduction circuitry
s
Latch-up performance exceeds 500 mA
s
Equivalent 26
鈩?/div>
series resistor on B Port outputs
s
ESD performance:
Human body model
>
2000V
Machine model
>
200V
Ordering Code:
Order Number
74LCXH2245WM
74LCXH2245SJ
74LCXH2245MSA
74LCXH2245MTC
Package Number
M20B
M20D
MSA20
MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
OE
T/R
A
0
鈥揂
7
B
0
鈥揃
7
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs (Bushold)
Side B Inputs or 3-STATE Outputs (Bushold)
GTO錚?is a trademark of Fairchild Semiconductor Corporation.
漏 2001 Fairchild Semiconductor Corporation
DS500409
www.fairchildsemi.com

74LCXH2245WM 產(chǎn)品屬性

  • 36

  • 集成電路 (IC)

  • 邏輯 - 緩沖器，驅(qū)動(dòng)器，接收器，收發(fā)器

  • 74LCXH

  • 收發(fā)器，非反相

  • 1

  • 8

  • 24mA，24mA; 12mA，12mA

  • 2 V ~ 3.6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 20-SOIC（0.295"，7.50mm 寬）

  • 20-SOIC

  • 管件

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