Z86E4412PEC Просмотр технического описания (PDF) - Zilog

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Z86E4412PEC

CMOS Z8® OTP Microcontrollers

Zilog 

CMOS Z8® OTP Microcontrollers

Product Specification

1

Architectural Overview

Zilog’s Z86E33/733/E34, E43/743/E44 8-Bit One-Time Programmable (OTP) Microcon-

trollers are members of Zilog’s single-chip Z8® MCU family featuring enhanced wake-up

circuitry, programmable Watchdog Timers, Low Noise EMI options, and easy hardware/

software system expansion capability.

Four basic address spaces support a wide range of memory configurations. The designer

has access to three additional control registers that allow easy access to register mapped

peripheral and I/O circuits.

For applications demanding powerful I/O capabilities, the Z86E33/733/E34 have 24 pins,

and the Z86E43/743/E44 have 32 pins of dedicated input and output. These lines are

grouped into four ports, eight lines per port, and are configurable under software control to

provide timing, status signals, and parallel I/O with or without handshake, and address/

data bus for interfacing external memory.

Note: All signals with an overline are active Low. For example, B/W, for

which WORD is active Low, and B/W, for which BYTE is active Low.

Power connections follow these conventional descriptions:

Connection

Power

Ground

Circuit

VCC

GND

Device

VDD

VSS

Features

Table 1 lists the features of Z86E33/733/E34, E43/743/E44.

Table 1. Z86E33/733/E34, E43/743/E44 Features

Device

Z86E33

Z86733

Z86E34

Z86E43

Z86743

ROM

(KB)

4

8

16

4

8

RAM1

(Bytes)

237

237

237

236

236

I/O

Lines

24

24

24

32

32

Speed

(MHz)

12

12

12

12

12

PS022901-0508

Architectural Overview

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