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74LVX3245 반도체 회로 부품 판매점

8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74LVX3245 데이터시트, 핀배열, 회로
June 2014
74LVX3245
8-Bit, Dual-Supply Translating Transceiver with
3-State Outputs
Features
Bidirectional Interface Between 3 V and 5 V Buses
Inputs Compatible with TTL Level
3 V Data Flow at A-Port and 5 V Data Flow at B-
Port
Outputs Source / Sink: 24 mA
Guaranteed Simultaneous Switching Noise Level
and Dynamic Threshold Performance
Implements Proprietary EMI Reduction Circuitry
Functionally Compatible with the 74 Series 245
Description
The 74LVX3245 is a dual-supply, 8-bit translating
transceiver designed to interface between a 3 V bus and
a 5 V bus in a mixed 5 V supply environment. The
Transmit/ Receive (T/R¯ ) input determines the direction
of data flow. Transmit (active-HIGH) enables data from
A-ports to B-ports; receive (active-LOW) enables data
from B-ports to A-ports. The output enable input, when
HIGH, disables both A- and B-ports by placing them in a
high-impedance condition. The A-port interfaces with
the 3 V bus; the B-port interfaces with the 5 V bus.
The 74LVX3245 is suitable for mixed-voltage
applications, such as notebook computers using 3.3 V
CPU and 5V peripheral components.
Related Resources
AN-5001 — Using Fairchild’s LVX Low-Voltage
Dual-Supply CMOS Translating Transceivers
Ordering Information
Part Number
Operating
Temperature Range
Package
74LVX3245WM
74LVX3245WMX
74LVX3245QSC
74LVX3245QSCX
74LVX3245MTC
74LVX3245MTCX
-40 to +85°C
24-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,
4.4 mm Wide
Packing Method
Tubes
Tape and Reel
Tubes
Tape and Reel
Tubes
Tape and Reel
© 1993 Fairchild Semiconductor Corporation
74LVX3245 • Rev. 1.0.3
www.fairchildsemi.com


74LVX3245 데이터시트, 핀배열, 회로
Logic Symbol
Pin Configuration
Figure 1. Logic Symbol
Figure 2. Pin Configuration
Pin Definitions
Pin #
1
2
3, 4, 5, 6, 7, 8, 9, 10
11, 12, 13
14, 15, 16, 17, 18, 19,
20, 21
22
23
24
Name
Description
VCCA
T/R¯
Supply Voltage
Transmit/Receive Input
A0, A1, A2, A3, A4,
A5, A6, A7
GND
Port-A Inputs or 3-State Outputs
Ground
B7, B6, B5, B4, B3,
B2, B1, B0
/OE
Port-B Inputs or 3-State Outputs
Output Enable Input
NC No Connect
VCCB
Supply Voltage
© 1993 Fairchild Semiconductor Corporation
74LVX3245 • Rev. 1.0.3
2
www.fairchildsemi.com




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74LVX3245 transceiver

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