PI74LVC4245AS datasheet(1/9 Pages) PERICOM

部件名	PI74LVC4245AS

功能描述	8-Bit Dual Supply Bus Transceiver with 3-State Outputs

PDF	9 Pages

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制造商	PERICOM [Pericom Semiconductor Corporation]

网页	http://www.pericom.com

标志

1 / 9 page

1

P-0.2

08/11/03

Product Description

Pericom Semiconductor’s PI74LVC series of logic circuits are

produced using the Company’s advanced submicron CMOS tech-

nology, achieving industry leading speed.

The PI74LVC4245A is a non-inverting 8-bit Bidirectional Trans-

ceiver that uses two separate power supply rails. A-port (VCCA)

is set to operate at 5V and B-port (VCCB) is set to operate at 3.3V.

This allows for translation from a 3.3V to a 5Venvironment and

vice-versa. This tranceiver is designed for asynchronous two-way

communication between data buses.The direction control input pin

(DIR) determines the dataflow from the A bus to the B bus or from

the B bus to the A bus. The output enable (OE) input, when HIGH,

disables both A and B ports by placing them in HIGH Z condi-

tion.

8-Bit Dual Supply Bus Transceiver

with 3-State Outputs

Logic Block Diagram

Product Features

• 4.5V to 5.5V on A-port and 2.7V to 3.6V on B-port

• Latch-up performance exceeds 200mA Per JESD78

• ESD protection exceeds JESD 22

- 2000V Human-Body Model (A114-B)

- 200V Machine Model (A115-A)

• Industrial Temperature: –40°C to +85°C

• Available Packages:

- 24-pin 173-mil wide plastic TSSOP (L)

- 24-pin 150-mil wide plastic QSOP (Q)

- 24-pin 300-mil wide plastic SOIC (S)

PI74LVC4245A

ADVANCE INFORMATION

B1

A1

OE

DIR

B2

A2

B3

A3

B4

A4

B5

A5

B6

A6

B7

A7

B8

A8

2

5

3

4

8

6

7

10

9

22

19

21

20

16

18

17

14

15

Truth Table(1)

Note:

1. H = High Signal Level

L = Low Signal Level

X = Don’t Care or Irrelevant

Z = High Impedance

(5V) VCCA

DIR

A1

A2

A3

A4

A5

A6

A7

A8

GND

VCCB (3.3V )

OE

B1

B2

B3

B4

B5

B6

B7

B8

GND

24

23

22

21

20

19

18

17

16

15

14

13

1

2

3

4

5

6

7

8

9

10

11

12

Product Pin Description

Product Pin Configuration

Inputs

Outputs

OE

DIR

L

Bus B Data to Bus A

L

H

Bus A Data to Bus B

H

X

Z (Isolation)

Pin Name

Description

OE

3-State Output Enable Inputs (Active LOW)

DIR

Direction Control Input

Ax

Side A Inputs or 3-State Outputs

Bx

Side B Inputs or 3-State Outputs

GND

Ground

VCCA,VCCB

Power

类似零件编号 - PI74LVC4245AS

制造商	部件名	数据表	功能描述
Pericom Semiconductor C...	PI74LVC3245A	536Kb / 9P	8-Bit Dual Supply Bus Transceiver with 3-State Outputs
	PI74LVC3245AL	536Kb / 9P	8-Bit Dual Supply Bus Transceiver with 3-State Outputs
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	PI74LVC3245AQ	536Kb / 9P	8-Bit Dual Supply Bus Transceiver with 3-State Outputs
	PI74LVC3245AQE	430Kb / 9P	8-Bit Dual Supply Bus Transceiver with 3-State Outputs

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