ATF20V8B-10SI

Overview

The ATF20V8B-10SI is a high-performance electrically-erasable programmable logic device (PLD) manufactured by Microchip Technology. It features 8 macrocells and operates within an industrial temperature range of -40°C to +85°C. The device utilizes advanced Flash technology, allowing for reprogrammability with 100 erase/write cycles and 20-year data retention. Key electrical parameters include a maximum pin-to-pin propagation delay of 10 ns, a clock-to-output delay of 7 ns, and an input setup time of 7.5 ns. It supports a 5V ± 10% supply voltage and is housed in a 24-lead Plastic Gull-wing Small Outline (SOIC) package.

Feature Summary

• Industry-standard architecture emulating many 24-pin PALs
• High-speed Electrically-erasable Flash PLD with 10 ns max delay
• CMOS and TTL compatible inputs and outputs
• Input and I/O pull-up resistors included

Applications

• Direct replacement for 20R8 family and most 24-pin combinatorial PLDs
• Complex logic function realization using registered, complex, or simple modes
• State machine initialization requiring power-up reset features

Procurement Notes

Verify the ordering code ATF20V8B-10SI corresponds to the Industrial temperature range (-40°C to +85°C) and 24-lead SOIC package. Confirm that the 'I' suffix denotes industrial grade operation and 'S' denotes the SOIC package type as per the manufacturer's ordering information table. Ensure compatibility with standard PLD programmers for programming and erasing operations.

Selection Notes

Select this component when replacing legacy 24-pin PAL devices such as the 20R8, 20L8, or 14L8 families. Choose the ATF20V8B-10SI over commercial variants if operation in temperatures down to -40°C is required. Consider the available Registered, Complex, and Simple modes to match specific logic requirements, noting that register usage forces Registered mode selection.

Part Context

The ATF20V8B series includes variants like ATF20V8BQ and ATF20V8BQL offering lower power consumption options. The ATF20V8B-10SI belongs to the standard power category with standby current up to 100 mA and active current up to 125 mA at industrial temperatures. It shares the same 8-macrocell architecture but differs in power specs and operating temperature ranges from the Q and QL suffixes.

Replacement Considerations

The ATF20V8B-10SI can directly replace 20R8, 20RP8, 20R6, 20RP6, 20R4, 20RP4, 20L8, 20H8, 20P8, 14L8, 14H8, 14P8, 16L6, 18H6, 16P6, 18L4, 18H4, 18P4, 20L2, 20H2, and 20P2 devices when programmed with the appropriate JEDEC file.