GAL16V8D - 16V8 High-Speed E²CMOS Programmable Logic Device

Overview

The GAL16V8D is a high-performance programmable logic device (PLD) that combines advanced CMOS technology with Electrically Erasable (E²) floating gate technology. With a maximum propagation delay of just 3.5 ns, it delivers the highest speed performance available in the PLD market. The device features ultra-fast erase times (<100ms), making it ideal for applications requiring rapid reprogramming and reconfigurable logic.

This device is particularly notable for its ability to emulate 20-pin PAL® devices while offering enhanced flexibility and performance. Its eight output logic macrocells provide significant design flexibility, making it suitable for complex logic implementations across various industries.

Features

High Performance E²CMOS® Technology

• 3.5 ns maximum propagation delay
• F_max = 250 MHz
• 3.0 ns maximum clock-to-output delay
• UltraMOS® Advanced CMOS Technology

Power Efficiency

• 50% to 75% reduction in power compared to bipolar alternatives
• 75mA typical I_CC on low-power device
• 45mA typical I_CC on quarter-power device

Enhanced Design Flexibility

• Active pull-ups on all pins
• Eight output logic macrocells with programmable polarity
• Full emulation of 20-pin PAL® devices with complete function/fuse map/parametric compatibility

Reliability and Reprogrammability

• Reconfigurable logic with reprogrammable cells
• 100% tested/guaranteed yields
• High-speed electrical erasure (<100ms)
• 20-year data retention

Testability Features

• Preload and power-on reset of all registers
• 100% functional testability
• Electronic signature for device identification

Applications

The GAL16V8D is versatile enough to be used in a wide range of applications, including but not limited to:

• DMA Control: Efficient data transfer management in computing systems.
• State Machine Control: Implementation of complex state machines with high-speed operation.
• High-Speed Graphics Processing: Acceleration of graphics-related computations.
• Standard Logic Speed Upgrade: Replacement of slower standard logic components to enhance system performance.
• Industrial Automation: Control logic for automated systems requiring fast response times.
• Telecommunications: Signal processing and routing applications.
• Embedded Systems: Custom logic for microcontroller-based designs.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_CC): -0.5V to +7.0V
• Input Voltage: -0.5V to V_CC + 0.5V
• Output Voltage: -0.5V to V_CC + 0.5V
• Storage Temperature: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (V_CC): +4.75V to +5.25V
• Operating Temperature: Commercial (0°C to +75°C) / Industrial (-40°C to +85°C)
• Input High Voltage (V_IH): 2.0V min
• Input Low Voltage (V_IL): 0.8V max

DC Characteristics

• Input Leakage Current (I_IN): ±10µA max
• Output High Voltage (V_OH): 2.4V min at I_OH = -3.2mA
• Output Low Voltage (V_OL): 0.5V max at I_OL = 16mA
• Supply Current (I_CC): 75mA typical (low power), 45mA typical (quarter power)

AC Characteristics

• Propagation Delay (t_PD): 3.5 ns max
• Clock-to-Output Delay (t_CO): 3.0 ns max
• Maximum Frequency (F_max): 250 MHz
• Input Setup Time (t_SU): 2.0 ns min
• Input Hold Time (t_H): 0.0 ns min

Package Information

The GAL16V8D is available in multiple package options to suit various application requirements:

20-Pin Plastic Dual In-Line Package (PDIP)

• Package Code: DIP-20
• Dimensions: 25.4mm x 6.35mm
• Pin Pitch: 2.54mm

20-Pin Plastic Leaded Chip Carrier (PLCC)

• Package Code: PLCC-20
• Dimensions: 9.0mm x 9.0mm
• Lead Pitch: 1.27mm

20-Pin Small Outline Integrated Circuit (SOIC)

• Package Code: SOIC-20
• Dimensions: 12.8mm x 7.5mm
• Pin Pitch: 1.27mm

Thermal Characteristics

• Thermal Resistance (θ_JA): 70°C/W (PDIP), 50°C/W (PLCC), 60°C/W (SOIC)
• Maximum Junction Temperature (T_J): +150°C

Conclusion

The GAL16V8D represents a significant advancement in programmable logic technology, offering unparalleled speed, flexibility, and power efficiency. Its combination of high-performance E²CMOS technology, reprogrammable cells, and versatile package options makes it an ideal choice for designers looking to implement complex logic in space-constrained, high-speed applications. With guaranteed reliability and 20-year data retention, this device provides a future-proof solution for demanding electronic systems.