20V8 Datasheet | Next Electromics

GAL20V8C Technical Summary

Overview

The GAL20V8C is a high-performance Complex Programmable Logic Device (CPLD) that combines advanced CMOS technology with Electrically Erasable (E²) floating gate architecture. With a maximum propagation delay of just 5ns, it delivers industry-leading speed for programmable logic applications. The device's fast erase capability (under 100ms) enables rapid reprogramming, making it ideal for prototyping and iterative design processes. The GAL20V8C is available in both PLCC and DIP packaging options, providing flexibility for different system integration requirements.

Features

High-Speed Performance: 5ns maximum propagation delay ensures rapid signal processing
Advanced Technology: Combines CMOS process with E² floating gate technology
Fast Reprogramming: Erase time under 100 milliseconds
Flexible I/O Configuration: 8 Output Logic Macro Cells (OLMCs) with programmable architecture
Programmable AND-Array: 64x40 programmable AND array for complex logic implementation
Multiple Package Options: Available in both PLCC (24-pin) and DIP (24-pin) configurations
Input/Output Flexibility: Dedicated clock input (CLK) and output enable (OE) pins
Power Supply: Standard 5V operation with Vcc and GND pins

Applications

The GAL20V8C is suitable for a wide range of digital logic applications including:

High-speed logic replacement and integration
Bus interface and control logic
State machine implementation
Address decoding circuits
Protocol conversion and signal conditioning
System glue logic consolidation
Prototyping and proof-of-concept development
Educational and research applications

Electrical Characteristics

Absolute Maximum Ratings

Supply Voltage (Vcc): -0.5V to +7.0V
Input Voltage: -0.5V to Vcc + 0.5V
Output Voltage: -0.5V to Vcc + 0.5V
Storage Temperature: -65°C to +150°C
Operating Temperature: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)

Recommended Operating Conditions

Supply Voltage (Vcc): 4.75V to 5.25V
Input High Voltage (VIH): 2.0V min
Input Low Voltage (VIL): 0.8V max
Output High Voltage (VOH): 2.4V min (Ioh = -3.2mA)
Output Low Voltage (VOL): 0.5V max (Iol = 16mA)

Timing Characteristics

Maximum Propagation Delay (tpd): 5ns
Input Setup Time (tsu): 3.5ns
Input Hold Time (th): 0ns
Clock to Output Delay (tco): 4ns
Maximum Clock Frequency (fmax): 100MHz

Package Information

PLCC Package (24-pin)

Package Type: Plastic Leaded Chip Carrier
Dimensions: 9.00mm x 9.00mm body
Lead Pitch: 1.27mm
Pin Count: 24
Operating Temperature: See Electrical Characteristics
Moisture Sensitivity Level (MSL): 3 (168 hours floor life)

DIP Package (24-pin)

Package Type: Dual In-line Package
Dimensions: 31.75mm x 6.35mm body
Lead Pitch: 2.54mm
Pin Count: 24
Operating Temperature: See Electrical Characteristics
Moisture Sensitivity Level (MSL): 1 (unlimited floor life)

Functional Description

The GAL20V8C architecture consists of a programmable AND array feeding eight Output Logic Macro Cells (OLMCs). Each OLMC can be independently configured as either a combinational or registered output, providing significant design flexibility. The device features: