Datasheet > CY29FCT818T_15

CY29FCT818T_15

更新时间： 2024-11-22 02:58:43

品牌	Logo	应用领域
德州仪器 - TI		输出元件
页数	文件大小	规格书
7页	95K
描述
DIAGNOSTIC SCAN REGISTER WITH 3-STATE OUTPUTS

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中文翻译

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数据手册

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CY29FCT818T_15 数据手册

Data sheet acquired from Cypress Semiconductor Corporation.

Data sheet modiﬁed to remove devices not offered.

CY29FCT818T

SCCS012 - May 1994 - Revised February 2000

Diagnostic Scan Register

ter is designed for applications, such as diagnostics in sequen-

tial circuits, where it is desirable to load known data at a spe-

ciﬁc location in the circuit and to read the data at that location.

Features

• Function,pinoutanddrivecompatiblewithFCT,FLogic

and AM29818

• FCT-C speed at 6.0 ns max. (Com’l),

FCT-A speed at 12.0 ns max. (Mil)

• Reduced V_OH(typically = 3.3V) versions of equivalent

FCT functions

• Edge-rate control circuitry for signiﬁcantly improved

noise characteristics

The shadow registers can load data from the output of the

FCT818T, and can be used as a right-shift register with

bit-serial input SDI and output SDO, using DCLK. The data

can be loaded simultaneously from the shadow register to the

pipeline register, and from the pipeline register to the shadow

satisﬁed with respect to the two independent clock inputs.

• Power-off disable feature

• Matched rise and fall times

• Fully compatible with TTL input and output logic levels

In a typical application, the general-purpose register in the

FCT818T replaces an 8-bit data register in the normal data

path of a system. The shadow register is placed in an auxiliary

bit-serial loop which is used for diagnostics. During diagnostic

operation, data is shifted serially into the shadow register, then

transferred to the general purpose register to load a known

value into the data path. To read the contents at that point in

the data path, the data is transferred from the data register into

the shadow register, then shifted serially in the auxiliary

diagnostic loop to make it accessible to the diagnostics

controller. This data is then compared with the expected value

to diagnose faulty operation of the sequential circuit.

• Sink current

64 mA (Com’l),

20 mA (Mil)

Source current 32 mA (Com’l),

3 mA (Mil)

• 8-Bit pipeline and shadow register

• ESD > 2000V

Functional Description

The FCT818T contains a high-speed 8-bit general-purpose

data pipeline register and a high-speed 8-bit shadow register.

The general-purpose register can be used in an 8-bit wide

data path for a normal system application. The shadow regis-

The outputs are designed with a power-off disable feature to

allow for live insertion of boards.

Logic Block Diagram

Pin Configurations

DIP, SOIC, QSOP

LCC

Top View

D −D

DCLK

MODE

SDI

8-BIT

11 10

9 8 7 6 5

SHADOW

DCLK

SDO

DCLK

SDI

GND

PCLK

SDO

CLK

S −S

MODE

19 2021 222324 25

MODE

SDO

MUX

SDI

GND

PCLK

8-BIT

PCLK

PIPELINE

P −P

Y −Y

12 3 4 5 6 7

中文翻译

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与CY29FCT818T_15相关器件

型号	品牌	获取价格	描述	数据表
CY29FCT818TDIP	TI	获取价格	Diagnostic Scan Register
CY29FCT818TDM	ETC	获取价格	Pipeline Register
CY29FCT818TLCC	TI	获取价格	Diagnostic Scan Register
CY29FCT818TLM	ETC	获取价格	Pipeline Register
CY29FCT818TQSOP	TI	获取价格	Diagnostic Scan Register
CY29FCT818TSOCR	CYPRESS	获取价格	Bus Driver, FCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO24, 0.300 INCH, PLASTIC, SOI
CY29FCT818TSOIC	TI	获取价格	Diagnostic Scan Register
CY2A11S-20.000	CRYSTEKMICROWAVE	获取价格	Quartz Crystal Leaded HC49 Crystal
CY2A11T-20.000	CRYSTEKMICROWAVE	获取价格	Quartz Crystal Leaded HC49 Crystal
CY2A11V-20.000	CRYSTEKMICROWAVE	获取价格	Quartz Crystal Leaded HC49 Crystal

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