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74LCXZ2245WM Datasheet

  • 74LCXZ2245WM

  • Low Voltage Bidirectional Transceiver with 5V Tolerant Input...

  • 109.77KB

  • 11頁(yè)

  • FAIRCHILD

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74LCXZ2245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26鈩?Series
Resistors in B Outputs
October 2000
Revised October 2000
74LCXZ2245
Low Voltage Bidirectional Transceiver
with 5V Tolerant Inputs and Outputs
and 26
鈩?/div>
Series Resistors in B Outputs
General Description
The LCXZ2245 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
(2.7V and 3.3V) V
CC
applications with capability of interfac-
ing to a 5V signal environment. The T/R input determines
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 out-
put helps reduce output overshoot and undershoot.
The LCXZ2245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing CMOS low power dissipation.
When V
CC
is between 0 and 1.5V, the LCXZ2245 is on the
high impedance state during power up or power down. This
places the outputs in the high impedance (Z) state prevent-
ing intermittent low impedance loading or glitching in bus
oriented applications.
Features
s
5V tolerant inputs and outputs
s
2.7V鈥?.6V V
CC
specifications provided
s
7.0 ns t
PD
max (V
CC
=
3.3V), 10
碌
A I
CC
max
s
Power down high impedance inputs and outputs
s
Supports live insertion/withdrawal (Note 1)
s
鹵
12 mA output drive on the 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 all B Port outputs
s
ESD performance:
Human body model
>
2000V
Machine model
>
200V
Note 1:
To ensure the high-impedance state during power up or down, OE
should be tied to V
CC
through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number
74LCXZ2245WM
74LCXZ2245SJ
74LCXZ2245MSA
74LCXZ2245MTC
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
Side B Inputs or 3-STATE Outputs
漏 2000 Fairchild Semiconductor Corporation
DS500410
www.fairchildsemi.com

74LCXZ2245WM 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

  • 74LCXZ

  • 收發(fā)器，非反相

  • 2

  • 8

  • 24mA，24mA

  • 2.7 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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