NG80960JA3V25

The NG80960JA3V25 is a 32-bit embedded microprocessor based on the Intel i960 core family. This single-core device operates with a 25 MHz core clock and is supplied in a 132-lead plastic quad flat package for surface-mount assembly.

Designed for embedded applications, the device combines a compact package, on-chip memory and cache, and a 3.3 V I/O interface to support mid-range control, timing, and system integration tasks in commercial-grade environments.

Key Features

• Core  Single i960 core with a 32-bit architecture and a 25 MHz core clock, delivering one instruction per clock execution as specified for the i960 Jx family.
• Memory and Cache  On-chip resources include a 2 KB instruction cache and a 1 KB direct-mapped data cache for the JA variant, plus 1 KB on-chip data RAM for critical variable storage with single-cycle access.
• Buses and Interfaces  High-bandwidth burst bus with 32-bit multiplexed address/data, and selectable external bus widths of 8-, 16-, or 32-bits to match system memory and peripheral configurations.
• Timers and Interrupts  Two on-chip timers with independent 32-bit counting and programmable clock prescaling; a high-speed interrupt controller with programmable priorities and maskable pins.
• Power and I/O  3.3 V supply voltage with 5 V tolerant inputs and TTL-compatible outputs; includes a halt mode for low power operation.
• System and Test  On-chip stack frame cache with automatic allocation on call/return and support for JTAG (IEEE 1149.1) boundary-scan for in-circuit testability.
• Package and Mounting  132-lead Plastic Quad Flat Pack (132-QFP) in a surface-mount format suitable for compact embedded PCBs.
• Operating Range  Commercial operating temperature range from 0 °C to 100 °C.
• Compliance  RoHS compliant.

Typical Applications

• Embedded control  Real-time control tasks in industrial and commercial equipment where a deterministic 32-bit core and on-chip timers are required.
• Communication and networking modules  Packet handling and protocol processing that benefit from the device’s burst bus and selectable external bus widths.
• Instrumentation and measurement  Local control and data collection using on-chip RAM for critical variables and single-cycle access for predictable performance.
• System controllers  Board-level controller roles that leverage on-chip caches, stack frame cache, and interrupt prioritization to streamline firmware design.

Unique Advantages

• Deterministic execution: One-instruction-per-clock execution characteristic of the i960 architecture supports predictable instruction timing for real-time code.
• Integrated memory resources: Instruction and data caches plus on-chip RAM reduce dependency on external memory for performance-critical code and variables.
• Flexible system interfacing: Selectable 8/16/32-bit bus widths and a 32-bit multiplexed address/data bus simplify integration with a range of external memory and peripherals.
• 3.3 V I/O with 5 V tolerance: Native 3.3 V operation with 5 V tolerant inputs and TTL-compatible outputs eases interfacing with legacy logic levels while maintaining modern supply voltage.
• Built-in testability and low-power option: JTAG (IEEE 1149.1) boundary-scan support and a halt mode for reduced power consumption improve board-level validation and system power management.
• Code compatibility within the i960 Jx family: Series-level code compatibility supports migration and reuse of firmware across compatible i960 Jx devices.

Why Choose NG80960JA3V25?

The NG80960JA3V25 positions itself as a compact, commercially graded 32-bit microprocessor suitable for embedded designs that need deterministic execution, integrated caches, and modest on-chip RAM. Its 3.3 V I/O, 5 V tolerant inputs, and flexible bus options make it adaptable to a variety of board-level architectures.

This part is well suited to engineers seeking a code-compatible member of the i960 Jx family with proven system features—on-chip timers, interrupt prioritization, and boundary-scan—that simplify firmware and hardware validation while supporting reliable, mid-range embedded applications.

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