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GENERAL DESCRIPTION

The Z80181 SAC? Smart Access Controller (hereinafter, referred to as Z181 SAC) is a sophisticated 8-bit CMOS microprocessor that combines a Z180-compatible MPU (Z181 MPU), one channel of Z85C30 Serial Communication Controller (SCC), a Z80 CTC, two 8-bit general-purpose parallel ports, and two chip select signals, into a single 100-pin Quad Flat Pack (QFP) package (Figures 1 and 2). Created using Zilogs patented Superintegration? methodology of combining proprietary IC cores and cells, this high-end intelligent peripheral controller is well-suited for a broad range of intelligent communication control applications such as terminals, printers, modems, and slave communication processors for 8-, 16- and 32- bit MPU based systems.

FEATURES

■ Z80180 Compatible MPU Core with 1 Channel of Z85C30 SCC, Z80 CTC, Two 8-Bit General-Purpose Parallel Ports, and Two Chip Select Signals.

■ High Speed Operation (10 MHz)

■ Low Power Consumption in Two Operating Modes:

- (TBD) mA Typ. (Run Mode)

- (TBD) mA Typ. (STOP Mode)

■ Wide Operational Voltage Range (5V ±10)

■ TTL/CMOS Compatible

■ Clock Generator

■ One Channel of Z85C30 Serial Communication Controller (SCC)

■ Z180 Compatible MPU Core Includes:

- Enhanced Z80 CPU Core

- Memory Management Unit (MMU) Enables Access to 1MB of Memory

- Two Asynchronous Channels

- Two DMA Channels

- Two 16-Bit Timers

- Clocked Serial I/O Port

■ On-Board Z84C30 CTC

■ Two 8-Bit General-Purpose Parallel Ports

■ Memory Configurable RAM and ROM Chip Select Pins

■ 100-Pin QFP Package