Lattice MACH211-7JC-10JI: A Comprehensive Technical Overview of the CPLD

The Lattice MACH211-7JC-10JI represents a classic implementation of a Complex Programmable Logic Device (CPLD) from Lattice Semiconductor's high-performance MACH® 4A family. This device is engineered to provide a robust, flexible, and cost-effective solution for a wide array of digital logic integration tasks, serving as a critical bridge between discrete logic and larger FPGAs.

At its core, the MACH211-7JC-10JI is built upon a proven PAL®-block architecture, organized into four PAL blocks. Each of these blocks contains 16 macrocells, culminating in a total of 64 macrocells for the entire device. This architecture is interconnected by a deterministic, fast Programmable Interconnect Array (PIA), which ensures uniform timing across the device. A key operational feature is its 5.0V in-system programmability (ISP) via the IEEE 1149.1 (JTAG) interface, allowing for convenient field upgrades and prototyping without removing the device from the circuit board.

The part number itself provides specific technical details: The "211" denotes the device density, "7" indicates a 7.5 ns maximum pin-to-pin combinatorial delay, "JC" signifies a 44-pin Plastic Leaded Chip Carrier (PLCC) package, and "10JI" confirms it is a 5V industrial-grade part. This speed grade makes it suitable for applications requiring high-speed logic operations. The device offers 34 user-I/O pins, providing ample connectivity for interfacing with other system components like memories, buses, and peripheral ICs.

Its primary applications include address decoding, state machine control, bus interfacing, and glue logic consolidation in various systems, from computer peripherals and telecommunications equipment to industrial control systems. The non-volatile E²CMOS® technology basis ensures that the device retains its programmed configuration upon power-up, requiring no external boot memory.

ICGOODFIND: The Lattice MACH211-7JC-10JI stands as a reliable and high-performance CPLD, offering a deterministic timing model, high-speed operation, and 5V ISP capability, making it a enduring choice for dense logic integration in 5V system environments.

Keywords: CPLD, Programmable Interconnect Array (PIA), In-System Programmability (ISP), Macrocells, JTAG Interface.