Click to expand full text
November 1987
FEATURES
[J Complete microcomputer, 24 I/O lines, and up to 64K bytes of addressable external space each for program and data rnernory.
l!lI 256-byte register file, including 236 general-purpose registers, 3 I/O port registers, and 16 status and control registers.
Cl Vectored, priority interrupts for I/O, counter/tirners, and UART.
l:J On-chip oscillator that accepts crystal or external clock drive.
GENERAL DESCRIPTION
The Z86C91 is a CMOS ROM less version of the Z8 single-chip microcomputer. It offers all the outstanding features of the Z8 family architecture except an on-chip program ROM.
Z86C91 Datasheet
