5429FCT521ATDB datasheet, PDF - EEWORLD Datasheet

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5429FCT521ATDB: DescriptionMULTILEVEL PIPELINE REGISTERS; File Size63KB，7 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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5429FCT521ATDB Overview

MULTILEVEL PIPELINE REGISTERS

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MULTILEVEL

PIPELINE REGISTERS

Integrated Device Technology, Inc.

IDT29FCT520AT/BT/CT/DT

IDT29FCT521AT/BT/CT/DT

FEATURES:

•

A, B, C and D speed grades

Low input and output leakage

≤1µA

(max.)

CMOS power levels

True TTL input and output compatibility

– V

= 3.3V (typ.)

– V

= 0.3V (typ.)

High drive outputs (-15mA I

, 48mA I

)

Meets or exceeds JEDEC standard 18 specifications

Product available in Radiation Tolerant and Radiation

Enhanced versions

Military product compliant to MIL-STD-883, Class B

and DESC listed (dual marked)

Available in DIP, SOIC, SSOP, QSOP, CERPACK and

LCC packages

DESCRIPTION:

The IDT29FCT520AT/BT/CT/DT and IDT29FCT521AT/

BT/CT/DT each contain four 8-bit positive edge-triggered

registers. These may be operated as a dual 2-level or as a

single 4-level pipeline. A single 8-bit input is provided and any

of the four registers is available at the 8-bit, 3-state output.

These devices differ only in the way data is loaded into and

between the registers in 2-level operation. The difference is

illustrated in Figure 1. In the IDT29FCT520AT/BT/CT/DT

when data is entered into the first level (I = 2 or I = 1), the

existing data in the first level is moved to the second level. In

the IDT29FCT521AT/BT/CT/DT, these instructions simply

cause the data in the first level to be overwritten. Transfer of

data to the second level is achieved using the 4-level shift

instruction (I = 0). This transfer also causes the first level to

change. In either part I=3 is for hold.

•

FUNCTIONAL BLOCK DIAGRAM

-D

MUX

CONTROL

CLK

OCTAL REG. A1

OCTAL REG. B1

OCTAL REG. A2

OCTAL REG. B2

MUX

2619 drw 01

-Y

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

Integrated Device Technology, Inc.

APRIL 1994

DSC-4215/4

6.2

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