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, 44-pin PLCC or 44-Pin LQFP 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, 44-Pin LQFP 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 0 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