ATF16V8BQL-15SC

Overview

The ATF16V8BQL-15SC is a high-performance CMOS electrically erasable programmable logic device (PLD) utilizing Atmel’s Flash memory technology. It features eight macrocells and supports three operational modes: registered, complex, and simple. The -15 speed grade provides a maximum pin-to-pin delay of 15 ns with a setup time of 12 ns. Designed for low-power applications, the BQL variant exhibits a typical standby current of 5 mA and active current of 20 mA at 5V. It operates within a commercial temperature range of 0°C to 70°C using a 5V ± 5% supply. The SC suffix indicates a 20-lead Plastic Gull-wing Small Outline (SOIC) package.

Feature Summary

• Low-Power Architecture: Typical standby current of 5 mA and active current of 20 mA.
• Flash Technology: Reprogrammable with 100 erase/write cycles and 20-year data retention.
• Three Operational Modes: Configurable as Registered, Complex, or Simple PLD via software.
• High Reliability: 2,000V ESD protection and 200mA latchup immunity.

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs.
• Industrial control systems requiring low power consumption.
• PCI-compliant digital logic interfaces.

Procurement Notes

Verify that the specific ordering code matches the required speed grade (-15) and package type (SC for SOIC). Confirm the temperature range requirement aligns with the Commercial specification (0°C to 70°C), as Industrial variants carry an 'I' suffix. Ensure programming equipment supports the ATF16V8BQL Flash architecture for reprogramming.

Selection Notes

Select the ATF16V8BQL variant over standard B or BQ versions when system power constraints are critical, due to its significantly lower standby and active currents. The -15 speed grade offers a balance between performance and power dissipation. Verify that the design utilizes the SOIC footprint compatible with the SC package designation.

Part Context

This component belongs to the ATF16V8B(QL) series of high-performance EEPLDs. The 'QL' suffix specifically denotes the low-power version of the device. The series is designed to emulate industry-standard 20-pin PAL devices, providing architectural compatibility while offering the benefits of Flash-based reprogrammability.

Replacement Considerations

The device can directly replace 16R8, 16RP8, 16L8, 16H8, 16P8, and various simple PALs like 10L8/10H8/10P8 depending on the compiler mode selection. Ensure the replacement part number includes the correct speed grade and package suffix to match electrical and physical requirements.

FAQ

What does the 'QL' suffix indicate in the part number?

The 'QL' suffix identifies the device as the low-power variant of the ATF16V8B series, featuring reduced standby and active supply currents compared to the standard B and BQ versions.

How is the operational mode determined?

The mode (Registered, Complex, or Simple) is automatically selected by the compilation software based on register usage and output enable configurations, though it can also be manually forced.

What is the maximum operating voltage tolerance?

For the commercial temperature range associated with the SC package, the VCC supply must be maintained within 5V ± 5% (4.75V to 5.25V).