PI74HSTL1212AEX

PI74HSTL1212AEX Datasheet


PI74HSTL1212

Part Datasheet
PI74HSTL1212AEX PI74HSTL1212AEX PI74HSTL1212AEX (pdf)
Related Parts Information
PI74HSTL1212AE PI74HSTL1212AE PI74HSTL1212AE
PDF Datasheet Preview
PI74HSTL1212
24-Bit, 1.8V to 3.3V Bi-Directional Level Shifting Transceiver

Product Features
• PI74HSTL1212 is designed for translation between 1.8V HSTL and LVCMOS
• Supports 1.8V HSTL Class I Buffer
• Industrial operation at to +85°C
• Dual Independent 12-Bit Slice Direction Control
• Packaging Pb-free & Green available :
64-pin 240-mil wide TSSOP A

Product Description

Pericom Semiconductor’s PI74HSTL1212 consists of two 12-Bit bidirectional non-inverting tranceivers with two separate supply rails, A-Port VCCA set at 1.8V, and B-Port VCCB set at 3.3V. Each set of 12 tranceivers allows translation from a 1.8V to 3.3V and back again. The control inputs 1DAB/1DBA and 2DAB/2DBA allows independent 12-Bit slice direction control for greater flexibility.

The PI74HSTL1212 is particularly useful for asynchronous communications between HSTL and LVTTL/LVCMOS data buses.

Truth Table Each 12-bit slice

Inputs XDAB / XDBA

H TTL L TTL

Operation

XA to XB HSTL to LVTTL LVCMOS XB to XA, LVTTL LVCMOS to HSTL

Logic Block Diagram

A-PORT HTSL 1DAB/1DBA 1A1
1A12 1VREF
2DAB/2DBA 2A1
2A12 2VREF

B-PORT LVTTL 1B1

To 11 Channels
1B12

To 11 Channels
2B12

Pin Configuration

VCCB
1B10
1B11
1B12
2B12
2B11
2B10

VCCB

VCCB
2VREF
2DAB/2DBA
06-0208
64 1DAB/1DBA 63 1VREF 62 1A1 61 1A2 60 1A3 59 1A4 58 1A5 57 GND 56 VCCA 55 1A6 54 1A7 53 1A8 52 1A9 51 GND 50 1A10 49 1A11 48 1A12 47 2A12 46 VCCA 45 2A11 44 2A10 43 2A9 42 2A8 41 GND 40 VCCA 39 2A7 38 2A6 37 2A5 36 2A4 35 2A3 34 2A2 33 2A1

PS8598B
06/05/06

PI74HSTL1212 24-Bit, 1.8V to 3.3V
Ordering Information
Ordering Code

Package Type

Package Description

PI74HSTL1212A
64-pin, 240 mil wide plastic TSSOP

PI74HSTL1212AE

Pb-free & Green, 64-pin, 240 mil wide plastic TSSOP

Notes
• Thermal characteristics can be found on the company web site at
• E = Pb-free & Green
• Adding an X suffix = Tape/Reel
06-0208

Pericom Semiconductor Corporation
• 1-800-435-2336
• 5

PS8598B
06/05/06
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Datasheet ID: PI74HSTL1212AEX 510099