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ISPLSI3256A-70LQI from LATTICE

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ISPLSI3256A-70LQI

Manufacturer: LATTICE

In-System Programmable High Density PLD

Partnumber Manufacturer Quantity Availability
ISPLSI3256A-70LQI,ISPLSI3256A70LQI LATTICE 200 In Stock

Description and Introduction

In-System Programmable High Density PLD The **ISPLSI3256A-70LQI** is a high-performance in-system programmable logic device (ispLSI) manufactured by **Lattice Semiconductor**.  

### **Key Specifications:**  
- **Family:** ispLSI 3000A  
- **Logic Capacity:** 256 macrocells  
- **Speed Grade:** -70 (70ns pin-to-pin delay)  
- **Package:** LQFP (Low-Profile Quad Flat Pack)  
- **Operating Voltage:** 3.3V  
- **I/O Pins:** 128  
- **Maximum Frequency:** ~125 MHz (varies by design)  
- **In-System Programmability (ISP):** Yes (via IEEE 1532 or JTAG)  
- **Technology:** E²CMOS (Electrically Erasable CMOS)  

### **Features:**  
- High-density programmable logic  
- Non-volatile reprogrammable architecture  
- 5V tolerant I/O (with 3.3V core)  
- Flexible clock distribution  
- Security bit for design protection  
- Low power consumption  

### **Applications:**  
- Digital signal processing  
- Embedded control systems  
- Communication interfaces  
- Industrial automation  

For detailed datasheets, refer to **Lattice Semiconductor’s official documentation**.

Application Scenarios & Design Considerations

In-System Programmable High Density PLD

Alternative Part Number

  • M4A5-256/128-7YC --: Lattice's M4A5 CPLD family is the direct successor to ispLSI 3000 series, offering comparable 256-macrocell density and 7 ns speed grade in a 208-pin PQFP package, making it a strong drop-in functional replacement.
  • EPM3256AQC208-7 --: Altera MAX 3000A EPM3256A provides 256 macrocells with 7 ns pin-to-pin delay in a 208-pin PQFP, matching the logic density and speed of the ispLSI3256A and widely available as a second-source CPLD.
  • XC9536XL-7PCG44C --: Xilinx XC9500XL CPLD family offers in-system programmable 3.3V logic with 7 ns speed; while lower density, it is a viable alternative for designs not fully utilizing the 256 macrocells and is broadly stocked.

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