PSD813F1A-90JI

Overview

The PSD813F1A-90J1T is a Flash in-system programmable (ISP) peripheral for 8-bit microcontrollers, manufactured by STMicroelectronics. It operates on a single 5 V supply and features dual-bank memory: 1 Mbit Primary Flash Memory organized into eight uniform sectors and 256 Kbit Secondary EEPROM with four uniform sectors. The device includes 16 Kbit SRAM and over 3,000 gates of programmable logic (DPLD and CPLD). It provides 27 reconfigurable I/Os and supports concurrent read/erase/write operations between the two memory banks. The component is housed in a 52-pin PLCC package.

Feature Summary

• Dual-bank architecture with 1 Mbit Flash and 256 Kbit EEPROM allowing concurrent operation
• Integrated programmable logic with over 3,000 gates (DPLD and CPLD)
• Built-in JTAG-compliant serial port for full-chip In-System Programmability (ISP)
• High endurance ratings: 100,000 cycles for Flash, 10,000 for EEPROM

Applications

• In-System Programming (ISP) for embedded designs
• In-Application Programming (IAP) for field firmware updates
• Expanding microcontroller address space via page register
• Complex memory mapping for MCUs with separate program and data spaces

Procurement Notes

Verify that the ordering suffix 'J1' corresponds to the 52-LCC (J-Lead) plastic package as specified in the product parameters. Confirm the operating temperature range matches the specific grade requirements, noting the maximum operating temperature is 70 °C. Ensure the design accounts for the device being not recommended for new designs while still in production.

Selection Notes

Select this component when an 8-bit MCU requires external Flash and EEPROM with ISP capabilities. The 5 V supply voltage is suitable for standard 5 V logic systems. The inclusion of a Page Register allows expansion of the address space by a factor of 256, which is critical for MCUs with limited address lines. Verify compatibility with the target MCU's bus interface (multiplexed or non-multiplexed).

Part Context

The PSD813F1A belongs to the PSD family of Programmable Microcontroller Peripherals from STMicroelectronics. This family integrates Flash memory, EEPROM, and programmable logic to simplify embedded system designs. The '90' in the part number typically denotes the speed grade, while 'J1' indicates the specific package type and tape/reel or tube configuration details defined by the manufacturer.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult STMicroelectronics for current alternatives, as this device is noted as not recommended for new designs.