W78C58
Overview
The W78C58 is a derivative of the W78C52 microcontroller family that provides extended internal ROM. The chip has 32K bytes of mask ROM and 256 bytes of RAM.
- DC to 40 MHz extensive operating frequency
- 256-byte on-chip scratch pad RAM
- 32K-byte on-chip mask ROM
- 64K-byte address space for external Program Memory
- 64K-byte address space for external Data Memory
- Three 16-bit timer/counters
- Four 8-bit bit-addressable I/O ports
- One extra 4-bit bit-addressable I/O port, additonal INT2 / INT3 (Available on 44-pin PLCC/QFP package)
- Eight-source, two priority-level interrupts
- Low EMI emission mode
