Zilog
Z80181
S
MART
A
CCESS
C
ONTROLLER
SAC
™
PRELIMINARY PRODUCT SPECIFICATION
Z80181
S
MART
A
CCESS
C
ONTROLLER (SAC
™
)
FEATURES
s
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)
s
s
s
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
s
s
s
s
s
Wide Operational Voltage Range (5V
±
10%)
s
TTL/CMOS Compatible
s
Clock Generator
s
One Channel of Z85C30 Serial Communication
Controller (SCC)
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 Communica-
tion Controller (SCC), a Z80 CTC, two 8-bit general-pur-
pose parallel ports, and two chip select signals, into a
single 100-pin Quad Flat Pack (QFP) package (Figures 1
and 2). Created using Zilog's 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.
Information on enhancement/cost reductions of existing
hardware using Z80/Z180 with Z8530/Z85C30 applica-
tions is also included in this product specification.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.,
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection
Power
Ground
Circuit
V
CC
GND
Device
V
DD
V
SS
DS971800500
2-1
ZILOG [ ZILOG, INC. ]
