74LCXH32245GX View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

View to exact match

74LCXH32245GX

Low Voltage 32-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs with Bushold

Fairchild Semiconductor 

Connection Diagram

(Top Thru View)

Truth Tables

Inputs

OE1

T/R1

L

L

L

H

H

X

Inputs

OE2

T/R2

L

L

L

H

H

X

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

Z = High Impedance

Outputs

Bus B0–B7 Data to Bus A0–A7

Bus A0–A7 Data to Bus B0–B7

HIGH–Z State on A0–A7,B0–B7

Outputs

Bus B8–B15 Data to Bus A8–A15

Bus A8–A15 Data to Bus B8–B15

HIGH–Z State on A8–A15,B8–B15

Pin Descriptions

Pin Names

Description

OEn

T/Rn

A0–A31

B0–B31

Output Enable Input (Active LOW)

Transmit/Receive Input

Side A Inputs/3-STATE Outputs

Side B Inputs/3-STATE Outputs

FBGA Pin Assignments

1

2

3

4

5

6

A

B1

B0 T/R1 OE1 A0

A1

B

B3

B2 GND GND A2

A3

C

B5

B4 VCC1 VCC1 A4

A5

D

B7

B6 GND GND A6

A7

E

B9

B8 GND GND A8

A9

F

B11

B10 VCC1 VCC1 A10

A11

G

B13 B12 GND GND A12 A13

H

B14 B15 T/R2 OE2 A15 A14

J

B17 B16 T/R3 OE3 A16 A17

K

B19 B18 GND GND A18 A19

L

B21 B20 VCC2 VCC2 A20 A21

M

B23 B22 GND GND A22 A23

N

B25 B24 GND GND A24 A25

P

B27 B26 VCC2 VCC2 A26 A27

R

B29 B28 GND GND A28 A29

T

B30 B31 T/R4 OE4 A31 A30

Inputs

OE3

T/R3

L

L

L

H

H

X

Inputs

OE4

T/R4

L

L

L

H

H

X

Outputs

Bus B16–B23 Data to Bus A16–A23

Bus A16–A23 Data to Bus B16–B23

HIGH–Z State on A16–A23,B16–B23

Outputs

Bus B24–B31 Data to Bus A24–A31

Bus B24–A31 Data to Bus B24–B31

HIGH–Z State on A24–A31,B24–B31

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