GENERAL DESCRIPTION
The Z86E33/733/E34/E43/743/E44 8-bit CMOS One-Time Programmable (OTP) microcontrollers are members of Zilogs Z8® single-chip microcontroller family featuring enhanced wake-up circuitry, programmable Watch-Dog Timers, Low Noise EMI options, and easy hardware/software system expansion capability.

FEATURES
■ Standard Temperature (VCC = 3.5V to 5.5V)
■ Extended Temperature (VCC = 4.5V to 5.5V)
■ 28-Pin DIP/SOIC/PLCC Packages (E33/733/E34)
   40-Pin DIP Package (E43/743/E44)
   44-Pin PLCC/QFP Packages (E43/743/E44)
■ Software Enabled Watch-Dog Timer (WDT)
■ Push-Pull/Open-Drain Programmable on
   Port 0, Port 1, and Port 2
■ Low-Power Consumption: 60 mW
■ Programmable Crystal Oscillator, EPROM Protect,
   RAM Protect, Auto Latch Disable, Permanent WDT,
   32 KHz Oscillator, and EPROM /Test Mode Disable
■ Fast Instruction Pointer: 0.6µs
■ Two Standby Modes: STOP and HALT
■ 24/32 Input and Output Lines
■ Digital Inputs CMOS Levels, Schmitt-Triggered
■ Software Programmable Low EMI Mode
■ Two Programmable 8-Bit Counter/Timers Each with a 6-
   Bit Programmable Prescaler
■ Six Vectored, Priority Interrupts from Six Different
   Sources
■ Auto Latches
■ Auto Power-On Reset (POR)
■ Two Comparators
■ On-Chip Oscillator that Accepts a Crystal, Ceramic
   Resonator, LC, RC, or External Clock Drive