Architectural Overview
Zilogâs Z86E33/733/E34, E43/743/E44 8-Bit One-Time Programmable (OTP) Microcontrollers are members of Zilogâs single-chip Z8® MCU family featuring enhanced wake-up circuitry, programmable Watchdog Timers, Low Noise EMI options, and easy hardware/software system expansion capability.
Features
⢠Standard Temperature (VCC = 3.5 V to 5.5 V)
⢠Extended Temperature (VCC = 3.5 V to 5.5 V)
⢠Available Packages:
â 28-Pin DIP/SOIC/PLCC OTP (E33/733/E34)
â 40-Pin DIP OTP (E43/743/E44)
â 44-Pin PLCC/LQFP OTP (E43/743/E44)
⢠Software Enabled Watchdog Timer (WDT)
⢠Push-Pull/Open-Drain Programmable
on Port 0, Port 1, and Port 2
⢠24/32 Input/Output Lines
⢠Clock-Free WDT Reset
⢠Auto Power-On Reset (POR)
⢠Programmable OTP Options:
â RC Oscillator
â EPROM Protect
â Auto Latch Disable
â Permanently Enabled WDT
â Crystal Oscillator Feedback Resistor Disable
â RAM Protect
⢠Low-Power Consumption: 60 mW
⢠Fast Instruction Pointer: 0.75 µs
⢠Two Standby Modes: STOP and HALT
⢠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
⢠Two Comparators
⢠On-Chip Oscillator that Accepts a Crystal,
Ceramic Resonator, LC, RC, or External Clock Drive
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