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