GENERAL DESCRIPTION

The Z86E61/E63 microcontrollers are members of the Z8® single-chip microcontroller family with 16K/32 Kbytes of EPROM and 236 bytes of general-purpose RAM. Offered in 40-pin DIP or 44-pin PLCC package styles, these devices are pin-compatible EPROM versions of the Z86C61/63. The ROMless pin option is available on the 44-pin versions only.

FEATURES

■ 8-Bit CMOS Microcontroller

■ 40-Pin DIP, 44-Pin PLCC Style Packages

■ 4.5V to 5.5V Operating Range

■ Clock Speeds: 16 and 20 MHz

■ Low Power Consumption: 275 mW (max)

■ Fast Instruction Pointer: 1.0 ms @ 12 MHz

■ Two Standby Modes: STOP and HALT

■ 32 Input/Output Lines

■ Full-Duplex UART

■ All Digital Inputs are TTL Levels

■ Auto Latches

■ High Voltage Protection on High Voltage Inputs

■ RAM and EPROM Protect

■ EPROM: 16 Kbytes Z86E61

32 Kbytes Z86E63

■ 256 Bytes Register File

- 236 Bytes of General-Purpose RAM

- 16 Bytes of Control and Status Registers

- 4 Bytes for Ports

■ Two Programmable 8-Bit Counter/Timers Each

with 6-Bit Programmable Prescaler

■ Six Vectored, Priority Interrupts from Eight

Different Sources

■ On-Chip Oscillator that Accepts a Crystal, Ceramic

Resonator, LC, or External Clock Drive