Integrated Device Technology Inc IDT54823ATEB, IDT54823ATL, IDT54823ATLB, IDT54823ATP, IDT54823ATPB Datasheet

...
0 (0)

IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT

HIGH-PERFORMANCE

 

 

 

CMOS BUS INTERFACE REGISTERS

MILITARY AND COMMERCIAL TEMPERATURE RANGES

 

 

 

 

HIGH-PERFORMANCE

 

IDT54/74FCT821AT/BT/CT

 

 

 

 

CMOS BUS

 

IDT54/74FCT823AT/BT/CT/DT

 

 

 

 

 

 

 

 

 

INTERFACE REGISTERS

IDT54/74FCT825AT/BT/CT

 

 

 

 

 

Integrated Device Technology, Inc.

FEATURES:

Common features:

Low input and output leakage 1μA (max.)

CMOS power levels

True TTL input and output compatibility

VOH = 3.3V (typ.)

VOL = 0.3V (typ.)

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

Features for FCT821T/FCT823T/FCT825T:

A, B, C and D speed grades

High drive outputs (-15mA IOH, 48mA IOL)

Power off disable outputs permit “live insertion”

DESCRIPTION:

The FCT82xT series is built using an advanced dual metal CMOS technology. The FCT82xT series bus interface registers are designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider address/data paths or buses carrying parity. The FCT821T are buffered, 10-bit wide versions of the popular FCT374T function. The FCT823T are 9-bit wide buffered registers with Clock Enable (EN) and Clear (CLR) – ideal for parity bus interfacing in high-performance microprogrammed systems. The FCT825T are 8-bit buffered registers with all the FCT823T controls plus multiple enables (OE1, OE2, OE3) to allow multiuser control of the interface, e.g., CS, DMA and RD/WR. They are ideal for use as an output port requiring high IOL/IOH.

The FCT82xT high-performance interface family can drive large capacitive loads, while providing low-capacitance bus loading at both inputs and outputs. All inputs have clamp diodes and all outputs are designed for low-capacitance bus loading in high-impedance state.

FUNCTIONAL BLOCK DIAGRAM

D0

DN

EN

CLR

 

 

 

D CL Q

D CL Q

 

CP Q

CP Q

CP

 

 

OE

 

 

 

Y0

YN

 

 

2567 drw 01

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

 

 

MILITARY AND COMMERCIAL TEMPERATURE RANGES

AUGUST 1995

©1995 Integrated Device Technology, Inc

6.21

DSC-4202/5

 

6.21

1

1

IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS

PIN CONFIGURATIONS

FCT821 10-BIT REGISTER

OE

 

1

 

24

 

VCC

D0

 

2

 

23

 

Y0

 

 

 

D1

 

3

P24-1

22

 

Y1

 

 

D2

 

4

21

 

Y2

 

 

D3

 

5

D24-1

20

 

Y3

 

 

D4

 

6

SO24-2 19

 

Y4

 

 

 

 

D5

 

7

SO24-7 18

 

Y5

 

 

D6

 

8

SO24-8 17

 

Y6

 

 

 

 

D7

 

9

&

16

 

Y7

 

 

 

E24-1

 

 

 

 

D8

 

10

 

15

 

Y8

D9

 

11

 

14

 

Y9

 

 

 

GND

 

12

 

13

 

CP

 

 

 

DIP/SOIC/SSOP/QSOP/CERPACK

TOP VIEW

FCT823 9-BIT REGISTER

OE

 

1

 

24

 

VCC

D0

 

2

 

23

 

Y0

 

 

 

D1

 

3

P24-1

22

 

Y1

 

 

D2

 

4

21

 

Y2

 

 

D3

 

5

D24-1

20

 

Y3

 

 

 

 

D4

 

6

SO24-2

19

 

Y4

 

 

 

SO24-7

 

 

 

D5

 

7

SO24-8

18

 

Y5

 

 

 

17

 

D6

 

8

&

 

Y6

 

 

D7

 

9

16

 

Y7

 

E24-1

 

D8

 

10

 

15

 

Y8

 

 

 

CLR

 

11

 

14

 

EN

 

 

 

GND

 

12

 

13

 

CP

 

 

 

DIP/SOIC/SSOP/QSOP/CERPACK

TOP VIEW

FCT825 8-BIT REGISTER

OE1

 

1

 

24

 

VCC

OE2

 

2

 

23

 

OE3

 

 

 

D0

 

3

 

22

 

Y0

 

 

 

D1

 

4

P24-1

21

 

Y1

 

 

D2

 

5

D24-1

20

 

Y2

 

 

D3

 

6

SO24-2 19

 

Y3

 

 

D4

 

7

SO24-8 18

 

Y4

 

 

D5

 

8

&

17

 

Y5

 

 

D6

 

9

E24-1

16

 

Y6

 

 

 

 

D7

 

10

 

15

 

Y7

 

 

 

CLR

 

11

 

14

 

EN

 

 

 

GND

 

12

 

13

 

CP

 

 

 

DIP/SOIC/QSOP/CERPACK

TOP VIEW

MILITARY AND COMMERCIAL TEMPERATURE RANGES

INDEX

D1

D0

OE NC VCC Y0 Y1

 

 

 

 

 

 

 

D2

4

3

2

1 28 27 26

Y2

5

 

 

 

25

D3

6

 

 

 

24

Y3

D4

7

 

 

 

23

Y4

NC

8

 

L28-1

22

NC

D5

9

 

 

 

21

Y5

D6

10

 

 

 

20

Y6

D7

11

 

 

 

19

Y7

 

1213 14 15 16 17 18

 

 

D8

D9

GND

NC CP Y9

Y8

 

 

 

 

 

LCC

 

 

 

 

TOP VIEW

 

 

INDEX

D1 D0

OE NC

VCC Y0 Y1

 

 

 

D2

4

3

2

1

28 27 26

Y2

5

 

 

 

 

25

D3

6

 

 

 

 

24

Y3

D4

7

 

 

 

 

23

Y4

NC

8

 

L28-1

22

NC

D5

9

 

 

 

 

21

Y5

D6

10

 

 

 

 

20

Y6

D7

11

 

 

 

 

19

Y7

 

1213 14 15 16 17 18

 

 

D8

CLR

GND

NC

CP EN

Y8

 

 

 

 

 

LCC

 

 

 

 

TOP VIEW

 

 

INDEX

D0

OE2

OE1

NC

VCC OE3

Y0

 

 

 

 

 

 

 

 

D1

4

3

2

1

28 27 26

Y1

5

 

 

 

 

25

D2

6

 

 

 

 

24

Y2

D3

7

 

 

 

 

23

Y3

NC

8

 

L28-1

22

NC

D4

9

 

 

 

 

21

Y4

D5

10

 

 

 

 

20

Y5

D6

11

 

 

 

 

19

Y6

 

1213 14 15 16 17 18

 

 

D7

CLR

GND

NC

CP EN Y7

 

 

 

 

 

LCC

 

 

 

 

TOP VIEW

 

 

2567 drw 02

2567 drw 03

2567 drw 04

6.21

2

Integrated Device Technology Inc IDT54823ATEB, IDT54823ATL, IDT54823ATLB, IDT54823ATP, IDT54823ATPB Datasheet

IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT

 

HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS

MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN DESCRIPTION

Names

I/O

Description

DI

I

The D flip-flop data inputs.

CLR

I

When the clear input is LOW and OE is

 

 

LOW, the QI outputs are LOW. When

 

 

the clear input is HIGH, data can be

 

 

entered into the register.

CP

I

Clock Pulse for the Register; enters

 

 

data into the register on the LOW-to-

 

 

HIGH transition.

YI

O

The register 3-state outputs.

EN

I

Clock Enable. When the clock enable is

 

 

LOW, data on the D I input is transferred

 

 

to the QI output on the LOW-to-HIGH

 

 

clock transition. When the clock enable

 

 

is HIGH, the QI outputs do not change

 

 

state, regardless of the data or clock

 

 

input transitions.

OE

I

Output Control. When the OE input is

 

 

HIGH, the Y I outputs are in the high-

 

 

impedance state. When the OE input is

 

 

LOW, the TRUE register data is present

 

 

at the YI outputs.

 

 

2567 tbl 01

FUNCTION TABLE(1)

 

 

Inputs

 

 

Internal/

 

 

 

 

 

Outputs

 

 

 

 

 

 

 

OE

CLR

EN

DI

CP

QI

YI

Function

H

H

L

L

L

Z

High Z

H

H

L

H

H

Z

 

H

L

X

X

X

L

Z

Clear

L

L

X

X

X

L

L

 

H

H

H

X

X

NC

Z

Hold

L

H

H

X

X

NC

NC

 

H

H

L

L

L

Z

Load

H

H

L

H

H

Z

 

L

H

L

L

L

L

 

L

H

L

H

H

H

 

NOTE:

 

 

 

 

 

 

2567 tbl 02

1.H = HIGH L = LOW

X = Don’t Care

NC = No Change

= LOW-to-HIGH Transition Z = High Impedance

ABSOLUTE MAXIMUM RATINGS(1)

Symbol

Rating

Commercial

Military

Unit

VTERM(2)

Terminal Voltage

–0.5 to +7.0

–0.5 to +7.0

V

 

with Respect to

 

 

 

 

GND

 

 

 

VTERM(3)

Terminal Voltage

–0.5 to

–0.5 to

V

 

with Respect to

VCC +0.5

VCC +0.5

 

 

GND

 

 

 

TA

Operating

0 to +70

–55 to +125

°C

 

Temperature

 

 

 

TBIAS

Temperature

–55 to +125

–65 to +135

°C

 

Under Bias

 

 

 

TSTG

Storage

–55 to +125

–65 to +150

°C

 

Temperature

 

 

 

PT

Power Dissipation

0.5

0.5

W

IOUT

DC Output

–60 to +120

–60 to +120

mA

 

Current

 

 

 

NOTES:

2567 lnk 03

 

1.Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. No terminal voltage may exceed VCC by +0.5V unless otherwise noted.

2.Input and VCC terminals only.

3.Outputs and I/O terminals only.

CAPACITANCE (TA = +25°C, f = 1.0MHz)

Symbol

Parameter(1)

Conditions

Typ.

Max.

Unit

CIN

Input

VIN = 0V

6

10

pF

 

Capacitance

 

 

 

 

COUT

Output

VOUT = 0V

8

12

pF

 

Capacitance

 

 

 

 

NOTE:

 

 

 

2567 lnk 04

1. This parameter is measured at characterization but not tested.

6.21

3

Loading...
+ 6 hidden pages