ATF16V8B-15SI

Overview

The ATF16V8B-15SI is a high-performance CMOS electrically-erasable programmable logic device (PLD) manufactured by Microchip Technology. It utilizes Atmel’s Flash memory technology and features eight macrocells with eight product terms each. The device operates at a maximum pin-to-pin delay of 15 ns, with a setup time of 12 ns and clock-to-output delay of 10 ns. It supports a 5V power supply within ±10% tolerance for industrial applications (-40°C to +85°C). The component provides 2,000V ESD protection, 200mA latchup immunity, and 100 erase/write cycles with 20-year data retention.

Feature Summary

• Industry-standard architecture emulating many 20-pin PALs
• Three configurable modes: Registered, Complex, and Simple
• CMOS and TTL compatible inputs and outputs with internal pull-ups
• Advanced Flash technology allowing reprogramming and security fuse usage

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs
• Industrial control systems requiring reliable logic functions
• PCI-compliant digital interface designs

Procurement Notes

Verify the package type corresponding to the 'S' suffix, which indicates a 20-lead Plastic Gull-wing Small Outline (SOIC) package. Confirm that the industrial temperature range specification aligns with system requirements. Ensure programming equipment supports the specific Flash memory architecture and security fuse settings required for this device generation.

Selection Notes

Select the ATF16V8B-15SI when an industrial temperature range (-40°C to +85°C) is required alongside a 15 ns speed grade. Choose this part over commercial variants if operating conditions exceed 70°C. Consider the SOIC package for surface mount assembly needs. Evaluate power consumption requirements against the standard ATF16V8B specifications, as lower power variants like BQL exist for different efficiency profiles.

Part Context

This component belongs to the ATF16V8B series, which includes variants with different speed grades (7.5ns, 10ns, 15ns, 25ns) and power options (standard, BQ, BQL). The 'I' suffix denotes the industrial temperature rating, while 'S' specifies the SOIC package. The series is designed to be a drop-in replacement for legacy GAL and PAL devices using standard PLD compilers.

Replacement Considerations

The ATF16V8B-15SI can directly replace 16R8, 16RP8, 16R6, 16RP6, 16R4, and 16RP4 devices in registered mode. In complex mode, it replaces 16L8, 16H8, and 16P8. In simple mode, it substitutes 10L8, 10H8, 10P8, 12L6, 12H6, 12P6, 14L4, 14H4, 14P4, 16L2, 16H2, and 16P2.