ATF1502BE-7AU44

Overview

The ATF1502BE-7AU44 is a high-performance, fully CMOS, electrically-erasable Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology. It features 32 macrocells with five product terms each, expandable up to 40 per macrocell via cascade logic. The device offers a maximum pin-to-pin propagation delay of 7 ns and supports registered operation up to 210 MHz. It operates with an internal supply voltage (VCCINT) of 1.8V and I/O supplies (VCCIO) ranging from 1.8V to 3.6V. The component is housed in a 44-lead TQFP package and supports In-System Programming (ISP) via the IEEE 1532 JTAG interface.

Feature Summary

• 32 Macrocells with 5 Product Terms per Macrocell, expandable to 40 via cascade logic
• Maximum 7 ns Pin-to-Pin Propagation Delay; Registered Operation up to 210 MHz
• In-System Programming (ISP) using IEEE 1532 JTAG Interface at 1.8V
• Dual VCCIO Banks supporting 1.8V, 2.5V, and 3.3V I/O levels

Applications

• Logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
• Boundary-scan testing compliant with IEEE Std. 1149.1
• High-speed digital logic functions requiring low power consumption

Procurement Notes

Verify that the ordering suffix 'AU44' corresponds to the 44-lead TQFP package and commercial/industrial temperature range as specified in the datasheet. Confirm that the '-7' speed grade matches the required 7 ns maximum propagation delay for the design. Ensure the design tool supports the ATF1502BE architecture for proper fitter configuration.

Selection Notes

Select this component when 32 macrocells are sufficient for the logic density requirements. The -7 speed grade provides a 7 ns delay, suitable for applications up to 210 MHz registered frequency. Consider the ATF1502BE-5 variant if a faster 5 ns delay is needed. Ensure the design accounts for the 1.8V core voltage and compatible I/O voltage levels (1.8V–3.3V).

Part Context

The ATF1502BE belongs to the ATF15xx series of CPLDs from Microchip Technology (formerly Atmel). It utilizes advanced digital CMOS technology and is completely reprogrammable with 10,000 program/erase cycles. The device includes security fuse features and supports hot-socketing. It is part of a family that includes variants with different speed grades and package options.

Replacement Considerations

Direct replacements within the same package and speed grade may include other ATF1502BE variants with different speed grades (e.g., ATF1502BE-5AU44 for 5 ns delay). Cross-family replacements like the ATF1504ASV offer similar functionality but may have different electrical characteristics and pinouts.