KMZ80J

KMZ80J is a Z80-family 8-bit microprocessor core intended for embedded and retro-computing projects. It aims to be largely compatible with the classic Zilog Z80 instruction set, so existing Z80 software and tooling can often be used with little modification.
Key points:
- Architecture: 8-bit data bus, 16-bit address space (64K), registers A,B,C,D,E,H,L plus SP, PC; alternate AF’, BC’, DE’, HL’; I and R for interrupts/refresh; optional IX/IY index registers.
- Instruction set: full Z80 instruction repertoire (data moves, arithmetic/logical ops, shifts/rotates, jumps/calls/returns, bit ops, etc.).
- Interrupts: supports standard Z80 interrupt modes (IM 0–2).
- I/O and memory: typical Z80-style memory-mapped I/O and interrupt-driven I/O; exact peripherals depend on the specific KMZ80J variant.
- Clock/formance: speed varies by fabrication; expect Z80-class performance.
- Development: use standard Z80 assemblers/linkers; check for available dev boards, emulators, and vendor-supplied toolchains.
- Use cases: educational, hobbyist retro machines, or embedded controllers needing Z80 compatibility.
For precise features, consult the official KMZ80J datasheet from the vendor (connections, voltage, package, clock ranges).

KMZ80J is a Kawasaki Z80-compatible CPU; its standard package is a 40-pin DIP (DIP-40). Some versions may be ceramic DIP or other leaded packages—check the exact datasheet for your specific device.

- Pin count: 40 pins (DIP/PLCC as used for Z80-class CPUs).
- Function: KMZ80J is a Z80-compatible 8-bit microprocessor. Pinout/common functions include:
- Address bus: A0–A15
- Data bus: D0–D7
- Control: MREQ, IORQ, RD, WR, M1, RFSH
- Bus control: WAIT (input), BUSRQ (input), BUSACK (output)
- Interrupts: INTR (interrupt request), NMI (non-maskable interrupt)
- Misc: RESET, CLK, Vcc, GND
In short, it’s a 40-pin CPU with a Z80-compatible interface for memory, I/O, timing, and interrupt handling.

KMZ80J was manufactured by Kawasaki Microelectronics (KM), a Japanese semiconductor company. Kawasaki Microelectronics was a Japanese electronics/semiconductor firm (an LSI/IC maker, originally a subsidiary of Kawasaki Heavy Industries).

KMZ80J is a Z80-compatible 8‑bit CPU core used in embedded systems. Common application areas include:
- Embedded controllers in consumer electronics and appliances
- Industrial automation and machine control
- Automotive instrumentation and dashboards
- Telecom and networking peripherals
- Medical devices and instrumentation
- Point-of-sale and office equipment
- Education, prototyping, and retro/computer‑design projects
(Note: use as a general-purpose 8-bit CPU core for embedded/educational applications.)

KMZ80J is a Z80‑compatible 8‑bit CPU (Japanese clone). Equivalents/drop‑ins: Zilog Z80 family (Z80, Z80A, Z80B, Z80N). Also compatible Z80‑based CPUs such as Hitachi HD64180/HD64280 (enhanced Z80) and other manufacturers’ Z80 clones.