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Product Detailed Parameters
- Description：IC CPLD 32MC 25NS 44TQFP
- Series：ATF15xx
- Mfr：Microchip Technology
- Package：Tray
- Programmable Type：In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max：25 ns
- Voltage Supply - Internal：4.5V ~ 5.5V
- Number of Macrocells：32
- Number of I/O：32
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：44-TQFP
- Supplier Device Package：44-TQFP (10x10)
- Grade：-
- Qualification：-
- Number of Gates：-
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Overview
The ATF1502ASL-25AU44 is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) from Microchip Technology. It features 32 macrocells with 5 product terms each, expandable to 40 via cascade logic. The device offers a maximum pin-to-pin delay of 7.5ns and supports registered operation up to 125MHz. It includes In-System Programmability (ISP) via JTAG, flexible macrocell configurations with D/T latch or flip-flop options, and advanced power management including automatic standby modes. The component is available in 44-lead PLCC and TQFP packages.
Feature Summary
- 32 Macrocells with 5 Product Terms per Macrocell, expandable to 40
- Maximum Pin-to-Pin Delay of 7.5ns; Registered Operation up to 125MHz
- In-System Programmability (ISP) via 4-pin JTAG interface
- Flexible Logic Macrocell with configurable D/T Latch/Flip-flop and global control signals
Applications
- Logic integration replacing TTL, SSI, MSI, LSI, and classic PLDs
- PCI-compliant interface designs requiring high current drivers
- Systems requiring In-System Programmability for field modifications
- Applications needing low-power standby modes with automatic detection
Procurement Notes
Verify the specific suffix 'AU44' against official Microchip documentation to confirm package type (TQFP) and temperature range (Industrial). Ensure design tools support the ATF1502AS(L) family for ISP programming via JTAG. Confirm RoHS compliance status if required by procurement specifications.
Selection Notes
Select this model for designs requiring 32 macrocells and high-speed performance (7.5ns delay). Consider the 'L' variant for lower standby current (10μA) if power consumption is critical. Ensure the application utilizes the 44-pin footprint compatible with PLCC or TQFP packages as specified in the datasheet.
Part Context
This part belongs to the Atmel ATF1502AS(L) CPLD family, which utilizes EEPROM technology for non-volatile configuration. The series is known for enhanced routing resources and flexible macrocell structures. It supports IEEE Std. 1149.1 boundary-scan testing and offers security fuse features for intellectual property protection.
Replacement Considerations
Direct replacements within the same family include ATF1502ASL-25PU44 (PLCC package) or other speed grades like -7 or -10 variants if timing requirements allow. Verify pin compatibility and electrical characteristics before substitution.
