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ISPLSI3448-70LB432 from LATTICE

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ISPLSI3448-70LB432

Manufacturer: LATTICE

In-System Programmable High Density PLD

Partnumber Manufacturer Quantity Availability
ISPLSI3448-70LB432,ISPLSI344870LB432 LATTICE 340 In Stock

Description and Introduction

In-System Programmable High Density PLD The **ISPLSI3448-70LB432** is a high-performance in-system programmable logic device (ispLSI) manufactured by **Lattice Semiconductor**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Device Family:** ispLSI 3000 Series  
- **Logic Cells:** 4,800  
- **Gates:** 8,000 PLD Gates  
- **Speed Grade:** -70 (70 ns maximum pin-to-pin delay)  
- **Package:** 432-pin Low-Profile Ball Grid Array (LB432)  
- **Operating Voltage:** 5V  
- **I/O Pins:** 288  
- **Macrocells:** 192  
- **Maximum Frequency:** 125 MHz  

### **Descriptions:**
- **Architecture:** High-density programmable logic device with in-system programmability (ISP) via IEEE 1149.1 (JTAG) interface.  
- **Applications:** Used in digital systems for high-speed logic integration, including telecommunications, networking, and industrial control.  
- **Technology:** Electrically Erasable CMOS (E²CMOS) for reprogrammability.  

### **Features:**
- **In-System Programmability (ISP):** Allows reprogramming without removing the device from the circuit board.  
- **Flexible I/O:** 5V TTL-compatible inputs and outputs.  
- **High-Speed Performance:** Pin-to-pin delays as low as 5 ns.  
- **JTAG Boundary Scan:** Supports IEEE 1149.1 for testing and programming.  
- **On-Chip Memory:** Includes programmable registers and wide-input logic blocks.  
- **Security:** Programmable security bit prevents unauthorized readback.  

This device is designed for complex digital logic applications requiring high speed and reprogrammability.

Application Scenarios & Design Considerations

In-System Programmable High Density PLD

Alternative Part Number

  • LC4256V-75TN176C --: Lattice ispMACH 4000V CPLD in a 176-pin TQFP package offers comparable macrocell density and 7.5 ns speed grade, making it a practical replacement for legacy ispLSI 3000-series designs.
  • EPM3256AQC208-7 --: Altera MAX 3000A CPLD with 256 macrocells and 7 ns pin-to-pin delay is a well-established cross-vendor alternative for 3.3V CPLD logic consolidation.
  • XC9536XL-7VQG44C --: Xilinx XC9500XL CPLD family provides 3.3V in-system programmable logic with 7 ns speed grade; suitable for lower-density replacements where the full 256-macrocell capacity of the original is not required.

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