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74LVXC3245WM Datasheet

  • 74LVXC3245WM

  • 8-Bit Dual Supply Configurable Voltage Interface Transceiver...

  • 8頁

  • FAIRCHILD

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74LVXC3245 8-Bit Dual Supply Configurable Voltage Interface Transceiver with 3-STATE Outputs
February 1994
Revised October 2003
74LVXC3245
8-Bit Dual Supply Configurable Voltage Interface
Transceiver with 3-STATE Outputs
General Description
The LVXC3245 is a 24-pin dual-supply, 8-bit configurable
voltage interface transceiver suited for PCMCIA and other
real time configurable I/O applications. The V
CCA
pin
accepts a 3V supply level. The A Port is a dedicated 3V
port. The V
CCB
pin accepts a 3V-to-5V supply level. The B
Port is configured to track the V
CCB
supply level respec-
tively. A 5V level on the V
CC
pin will configure the I/O pins
at a 5V level and a 3V V
CC
will configure the I/O pins at a
3V level. The A Port should interface with a 3V host system
and the B Port to the card slots. This device will allow the
V
CCB
voltage source pin and I/O pins on the B Port to float
when OE is HIGH. This feature is necessary to buffer data
to and from a PCMCIA socket that permits PCMCIA cards
to be inserted and removed during normal operation.
Features
s
Bidirectional interface between 3V and 3V-to-5V buses
s
Control inputs compatible with TTL level
s
Outputs source/sink up to 24 mA
s
Guaranteed simultaneous switching noise level and
dynamic threshold performance
s
Implements patented EMI reduction circuitry
s
Flexible V
CCB
operating range
s
Allows B Port and V
CCB
to float simultaneously when OE
is HIGH
s
Functionally compatible with the 74 series 245
Ordering Code:
Order Number
74LVXC3245WM
74LVXC3245QSC
74LVXC3245MTC
Package Number
M24B
MQA24
MTC24
Package Description
224-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending 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 2003 Fairchild Semiconductor Corporation
DS012008
www.fairchildsemi.com

74LVXC3245WM 產(chǎn)品屬性

  • Logic Translator Solutions

  • 30

  • 集成電路 (IC)

  • 邏輯 - 變換器

  • 74LVXC

  • 變換器，3 態(tài)

  • 8

  • TTL

  • 邏輯

  • -

  • 8

  • 1

  • 無/無

  • 4.8ns

  • 2.7 V ~ 3.6 V，3 V ~ 5.5 V

  • -40°C ~ 85°C

  • 24-SOIC（0.295"，7.50mm 寬）

  • 24-SOIC

  • 管件

  • 74LVXC3245WM-ND74LVXC3245WMFS

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