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ZPSD312VB-25J from ST,ST Microelectronics

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ZPSD312VB-25J

Manufacturer: ST

Programmable system device, 18 PLD inputs, EPROM=512Kb, SRAM=16Kb, bus width x 8, 2.7V, 250ns

Partnumber Manufacturer Quantity Availability
ZPSD312VB-25J,ZPSD312VB25J ST 16 In Stock

Description and Introduction

Programmable system device, 18 PLD inputs, EPROM=512Kb, SRAM=16Kb, bus width x 8, 2.7V, 250ns The part **ZPSD312VB-25J** is manufactured by **STMicroelectronics (ST)**. Below are the specifications, descriptions, and features based on the available knowledge:

### **Specifications:**
- **Part Number:** ZPSD312VB-25J  
- **Manufacturer:** STMicroelectronics (ST)  
- **Package:** PLCC-44  
- **Speed:** 25ns  
- **Operating Voltage:** 5V  
- **Technology:** PSD (Programmable System Device)  
- **Memory Configuration:**  
  - EPROM: Up to 256Kb  
  - SRAM: Up to 16Kb  
- **I/O Ports:** Configurable I/O ports  
- **Programmable Logic:** Contains PLD (Programmable Logic Device) blocks  

### **Descriptions:**  
The **ZPSD312VB-25J** is a **Programmable System Device (PSD)** that integrates memory (EPROM and SRAM) with programmable logic (PLD) and I/O ports. It is designed for embedded applications requiring high-speed operation and flexibility in system design.  

### **Features:**  
- **High-Speed Performance:** 25ns access time  
- **Integrated Memory:** Combines EPROM and SRAM  
- **Programmable Logic:** Contains PLD for logic functions  
- **Flexible I/O:** Configurable I/O ports for interfacing  
- **Single 5V Operation:** Simplifies power supply design  
- **JTAG Support:** For in-system programming (ISP)  

This information is based on the technical documentation from STMicroelectronics. For exact details, refer to the official datasheet.

Application Scenarios & Design Considerations

Programmable system device, 18 PLD inputs, EPROM=512Kb, SRAM=16Kb, bus width x 8, 2.7V, 250ns

Alternative Part Number

  • M29F400BB-90N6 --: Similar 4 Mbit flash memory device in a PLCC package with comparable access time, suitable as a functional substitute for the ZPSD312VB-25J configuration memory.
  • AT49F040-90JC --: 4 Mbit parallel flash in PLCC44 with 90 ns access time, pin-compatible footprint and comparable voltage range, offering a viable alternative from a different vendor.
  • SST39SF040-70-4C-NHE --: 4 Mbit flash memory with fast access time and PLCC package option, widely available and functionally similar for the memory portion of the ZPSD312VB design.

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