ATF20V8B-7SC

Overview

The ATF20V8B-7SC is a high-performance electrically-erasable programmable logic device (PLD) utilizing CMOS Flash memory technology. It features a maximum pin-to-pin delay of 7.5 ns and operates within a commercial temperature range of 0°C to 70°C. The device provides eight outputs, each allocated eight product terms, and supports three operational modes: registered, complex, and simple. It functions with a 5V ± 5% power supply and includes internal input/I/O pull-up resistors. The component is housed in a 24-lead Plastic Gull-wing Small Outline (SOIC) package.

Feature Summary

• High-speed Electrically-Erasable PLD with 7.5 ns maximum pin-to-pin delay
• Reprogrammable Advanced Flash Technology with 100 erase/write cycles
• Three configurable modes: Registered, Complex, and Simple for PAL emulation
• CMOS and TTL compatible inputs/outputs with internal pull-up resistors

Applications

• Direct replacement for 20R8 family and most 24-pin combinatorial PLDs
• State machine initialization requiring power-up reset functionality
• Logic applications emulating standard 24-pin PAL devices

Procurement Notes

Verify the ordering code matches ATF20V8B-7SC for the specific 7.5 ns speed grade and SOIC package. Confirm the commercial temperature range (0°C to 70°C) aligns with system requirements. Ensure programming hardware supports the ATF20V8B architecture for Flash memory configuration. Check for RoHS compliance if lead-free packaging is required.

Selection Notes

Select this part for designs requiring fast combinational or registered logic with reprogrammability. The -7 speed grade offers the highest performance in the standard ATF20V8B series. Consider the -10 or -15 grades if lower power consumption or relaxed timing constraints are acceptable. Verify that the 24-lead SOIC package fits the PCB layout constraints.

Part Context

The ATF20V8B-7SC belongs to the ATF20V8B family of high-performance EE PLDs. This family includes variants with different speed grades (-7, -10, -15, -25) and power options (standard, Q, QL). The device supersedes older PAL architectures by offering non-volatile Flash memory, allowing for unlimited reprogramming without UV erasure.

Replacement Considerations

The device can directly replace 20R8, 20RP8, 20R6, 20RP6, 20R4, and 20RP4 devices when configured in Registered Mode. It also replaces 20L8, 20H8, and 20P8 in Complex Mode, and various 14L8, 16L6, 18L4, 20L2, etc., in Simple Mode.