PSD813F2VA-15J

Overview

The PSD813F2VA-15J is a Flash in-system programmable (ISP) peripheral for 8-bit microcontrollers manufactured by STMicroelectronics. It features dual bank flash memories with up to 2 Mbit of primary flash and 256 Kbit of secondary flash, alongside up to 256 Kbit of SRAM. The device includes over 3000 gates of PLD capability, supporting CPLD and DPLD configurations. It provides 27 individually configurable I/O ports and an enhanced JTAG serial port for full-chip ISP. Packaged in a 52-LCC (J-Lead) case, it supports concurrent read/erase/write operations across memory banks.

Feature Summary

• Dual bank flash architecture: Up to 2 Mbit primary and 256 Kbit secondary flash with concurrent operation capabilities
• Integrated PLD: Over 3000 gates supporting CPLD (16 OMCs, 24 IMCs) and DPLD internal chip select decoding
• Extensive I/O: 27 reconfigurable I/O ports with general-purpose functions
• In-System Programmability: Enhanced JTAG serial port allows full-chip programming without removal

Applications

• Peripheral expansion for 8-bit MCU systems
• Flash memory augmentation for embedded controllers
• Complex logic replacement using integrated PLD/CPLD/DPLD structures
• Systems requiring high-reliability in-system programming via JTAG

Procurement Notes

Verify the package type matches the specific application requirement, as this component is available in multiple packages including PQFP52 and LCC-52. Confirm the voltage rating (3.3V vs 5V) corresponds to the system design, as suffixes like 'VA' typically indicate specific voltage variants. Ensure the ordering suffix aligns with the required temperature range and packaging format before procurement.

Selection Notes

Select this component when an 8-bit MCU requires additional non-volatile storage or complex logic integration. The PSD813F2 series offers significant gate density compared to standard PROMs. Consider the 52-pin LCC package for surface mount applications where space is constrained but pin count is sufficient. Evaluate the need for concurrent flash operations if real-time data logging during code execution is required.

Part Context

This part belongs to the PSD813F2V family of ISP peripherals designed specifically for 8-bit microcontrollers. It serves as a bridge between simple memory devices and complex FPGAs, offering a cost-effective solution for adding flash and logic to legacy 8-bit architectures. Similar parts in the family include the PSD813F1A and PSD854F2VA series, which vary in memory size and package options.

Replacement Considerations

Direct replacements must match the 52-LCC (J-Lead) package and 3.3V operating voltage. The PSD813F2VA-15MI is a functional equivalent in a different package (PQFP52). Verify that substitute components support the same JTAG interface and have comparable PLD gate counts to ensure logical compatibility.