Specifications ispGAL22V10

1

• IN-SYSTEM PROGRAMMABLE™ (5-V ONLY)

— 4-Wire Serial Programming Interface

— Minimum 10,000 Program/Erase Cycles

— Built-in Pull-Down on SDI Pin Eliminates Discrete

Resistor on Board (ispGAL22V10C Only)

— 7.5 ns Maximum Propagation Delay

— Fmax = 111 MHz

— 5 ns Maximum from Clock Input to Data Output

• ACTIVE PULL-UPS ON ALL LOGIC INPUT AND I/O PINS

• COMPATIBLE WITH STANDARD 22V10 DEVICES

— Fully Function/Fuse-Map/Parametric Compatible

with Bipolar and CMOS 22V10 Devices

— In-System Programmable Logic

— 100% Tested/100% Yields

— High Speed Electrical Erasure (<100ms)

— 20 Year Data Retention

• TEN OUTPUT LOGIC MACROCELLS

— Maximum Flexibility for Complex Logic Designs

• APPLICATIONS INCLUDE:

— DMA Control

— State Machine Control

— High Speed Graphics Processing

— Software-Driven Hardware Configuration

• ELECTRONIC SIGNATURE FOR IDENTIFICATION

DESCRIPTION

The ispGAL22V10, at 7.5ns maximum propagation delay time,

combines a high performance CMOS process with Electrically

fers high speed (<100ms) erase times, providing the ability to re-

program or reconfigure the device quickly and efficiently.

The generic architecture provides maximum design flexibility by

allowing the Output Logic Macrocell (OLMC) to be configured by

the user. The ispGAL22V10 is fully function/fuse map/parametric

compatible with standard bipolar and CMOS 22V10 devices. The

standard PLCC package provides the same functional pinout as

the standard 22V10 PLCC package with No-Connect pins being

used for the ISP interface signals.

Unique test circuitry and reprogrammable cells allow complete

AC, DC, and functional testing during manufacture. As a result,

Lattice Semiconductor delivers 100% field programmability and

functionality of all GAL products. In addition, 10,000 erase/write

cycles and data retention in excess of 20 years are specified.

FUNCTIONAL BLOCK DIAGRAM

FEATURES

PIN CONFIGURATION

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

SDO

SDI

MODE

SCLK

I/CLK

I

I

I

I

I

I

I

I

I

I

RESET

PRESET

8

10

12

14

16

16

14

12

10

8

OLMC

OLMC

OLMC

OLMC

OLMC

OLMC

OLMC

OLMC

OLMC

OLMC

PROGRAMMING

LOGIC

I

ispGAL22V10

Generic Array Logic™

Copyright © 1997 Lattice Semiconductor Corp. All brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject

to change without notice.

LATTICE SEMICONDUCTOR CORP., 5555 Northeast Moore Ct., Hillsboro, Oregon 97124, U.S.A.

July 1997

Tel. (503) 681-0118; 1-888-ISP-PLDS; FAX (503) 681-3037; http://www.latticesemi.com

PLCC

SDO

I/O/Q

I/O/Q

I/O/Q

22 8

I

I

MODE

I

I

I

5

11

14

16

19

25

4

7

9

12

18

21

23

26

I

I/O/Q

I/O/Q

I/O/Q

Vcc

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

SDO

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I/O/Q

I

SDI

SCLK

I/CLK

I

I

I

I

I

MODE

I

I

I

I

I

GND

1

7

14

28

22

15

ispGAL

22V10

Top View

SSOP

ispGAL22V10

Top View

isp22v10_02