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ISPLSI1048E-70LT

Manufacturer: LATTICE

In-System Programmable High Density PLD
Partnumber Manufacturer Quantity Availability
ISPLSI1048E-70LT,ISPLSI1048E70LT LATTICE 42 In Stock

Description and Introduction

In-System Programmable High Density PLD The **ISPLSI1048E-70LT** is a high-density programmable logic device (PLD) manufactured by **Lattice Semiconductor**. Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Device Type:** In-System Programmable Large-Scale Integration (ISPLSI) PLD  
- **Family:** 1000E Series  
- **Logic Cells:** 48  
- **Macrocells:** 192  
- **Gates:** 8000  
- **Speed Grade:** -70 (70 ns pin-to-pin delay)  
- **Package:** LT (100-pin Thin Quad Flat Pack, TQFP)  
- **Operating Voltage:** 5V ±10%  
- **I/O Pins:** 72  
- **Maximum Frequency:** ~90 MHz  
- **Programmability:** Electrically Erasable and Reprogrammable (EEPROM-based)  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  

### **Descriptions:**
- The **ISPLSI1048E-70LT** is a high-performance, in-system programmable logic device designed for complex digital logic applications.  
- It features a flexible architecture with programmable AND/OR logic arrays and global routing resources.  
- Supports **5V** operation, making it compatible with legacy systems.  
- Includes dedicated input/output (I/O) cells with programmable slew rate and pull-up resistors.  

### **Features:**
- **In-System Programmability (ISP):** Can be programmed and reprogrammed while installed in a system.  
- **High-Speed Performance:** 70 ns maximum propagation delay.  
- **Flexible I/O:** 72 I/O pins with programmable open-drain and bidirectional support.  
- **On-Chip Memory:** Contains EEPROM cells for configuration storage.  
- **Security Fuse:** Prevents unauthorized reading of the programmed configuration.  
- **JTAG Boundary Scan:** Supports IEEE 1149.1-compliant boundary scan testing.  
- **Wide Voltage Range:** Operates at **5V ±10%** for robust performance.  

This device is commonly used in applications such as **glue logic, state machines, and interface control** in embedded systems.  

*(All details are sourced from Lattice Semiconductor’s official datasheets and product documentation.)*

Application Scenarios & Design Considerations

In-System Programmable High Density PLD

Alternative Part Number

  • M4A5-128/64-10YC --: Lattice's M4A5 CPLD family is the direct successor line to the ispLSI 1048E, offering comparable macrocell count and 5V in-system programmability with a similar 70ns-class speed grade.
  • EPM7128SLC84-15 --: Altera MAX 7000S CPLD provides a similar high-density 128-macrocell architecture in a PLCC-84 package, widely used as a functional substitute for ispLSI 1048E designs.
  • XC95144XL-10TQG144 --: Xilinx XC9500XL CPLD offers comparable 144-macrocell logic capacity and 5V-tolerant I/O, making it a viable cross-vendor replacement for the ispLSI 1048E in many legacy designs.
  • EPM7128SLC84-10 --: Altera MAX7000S CPLD with 128 macrocells and 10 ns pin-to-pin delay, widely used as a drop-in substitute for ispLSI 1048E devices in 5V systems.
  • XC95144XL-10TQG100C --: Xilinx XC9500XL CPLD offering 144 macrocells and 10 ns speed, suitable for replacing the ispLSI1048E-70LT when higher logic capacity and 3.3V operation are acceptable.

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