STMicroelectronics PSD813F1VA-15J

Overview

PSD813F1VA-15J from STMicroelectronics is a programmable system device (PSD) integrating dual Flash memory (1MB primary Flash + 64KB secondary EEPROM), PLD-based logic, SRAM, and configurable I/O ports for embedded microcontroller peripheral expansion. It supports in-system programming via JTAG, features uniform 256-byte Flash erase sectors, and delivers 15 ns access time for real-time MCU interface applications in industrial control and automotive ECUs.

For engineers reviewing the PSD813F1VA-15J datasheet, PSD813F1VA-15J pinout, PSD813F1VA-15J application, or PSD813F1VA-15J equivalent, this device serves as a unified logic+memory co-processor for 8-bit/16-bit MCUs requiring nonvolatile configuration storage, address decoding, and glue logic replacement without external CPLDs or discrete memory chips.

Technical Context

The PSD813F1VA-15J implements a hybrid architecture with two independent memory arrays: a 1MB primary Flash block organized in 256-byte uniform sectors and a 64KB secondary EEPROM block with byte-level write capability. Its PLD logic includes dual 32-macrocell CPLD blocks supporting combinational and registered outputs with user-defined timing constraints.

Memory mapping is managed through a programmable Page Register (PAGE) and Address Decoder Logic (ADL), enabling dynamic bank switching between Flash, EEPROM, and SRAM spaces. The JTAG interface complies with IEEE 1149.1 and supports full boundary-scan testing, ISP programming, and real-time debug access to internal registers and memory contents.

Key Specifications

Pinout & Package

PSD813F1VA-15J uses a 44-pin PLCC (Plastic Leaded Chip Carrier) package with 0.6-inch body size and J-lead construction, optimized for reflow soldering and high-reliability board mounting in vibration-prone applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable memory+logic applications.

Compared with PSD813F2VA-15J, the PSD813F1VA-15J trades half the Flash capacity for lower cost and power; versus ATF1502ASV-15J, it eliminates external memory components and simplifies layout but offers less logic flexibility.

Availability

PSD813F1VA-15J is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive ECU bootloader storage, and medical device configuration management requiring stable component supply across extended product lifecycles.

Supply support for PSD813F1VA-15J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, and programmable logic solutions for industrial, automotive, and consumer markets.

The PSD family was designed specifically to replace discrete memory, logic, and interface components in 8-bit/16-bit MCU systems-enabling single-chip peripheral expansion with integrated Flash, EEPROM, SRAM, and PLD logic.

FAQ

What is the minimum erase cycle endurance for the 64KB EEPROM block?

The secondary EEPROM block guarantees 100,000 erase/write cycles per byte across the full operating temperature range (–40°C to +85°C). Endurance is verified per JEDEC Standard JESD22-A117 and applies to individual byte locations-not sector or block-level limits. Data retention exceeds 10 years at 85°C ambient.

Can the PSD813F1VA-15J operate with a 3.3 V MCU interface?

No-the PSD813F1VA-15J is strictly a 5.0 V ±10% device with TTL-compatible input thresholds and 5 V output drive levels. Interfacing with 3.3 V MCUs requires level-shifting circuitry on all address, data, and control lines (A0–A19, DQ0–DQ7, CE#, OE#, WE#) to prevent damage and ensure signal integrity.

How does JTAG programming interact with active MCU operation?

JTAG programming operates independently of the MCU host-no MCU involvement is required. The PSD813F1VA-15J's TAP controller handles all programming sequences, allowing firmware updates or logic reconfiguration while the MCU executes code from other memory regions. This enables true in-service maintenance without system downtime.

Is the 15 ns access time guaranteed under all operating conditions?

Yes-the 15 ns access time is specified over the full commercial temperature range (0°C to +70°C) and industrial range (–40°C to +85°C) at VCC = 5.0 V ±5%. It includes worst-case propagation delays through address latching, decode logic, and memory array access, validated per JEDEC JESD8-A timing measurement standards.