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Zilog Electronic Components Datasheet

Z80181 Datasheet

SMART ACCESS CONTROLLER

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Zilog
Z80181
SMART ACCESS CONTROLLER SAC
PRELIMINARY PRODUCT SPECIFICATION
FEATURES
Z80181
SMART ACCESS CONTROLLER (SAC)
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.
s High Speed Operation (10 MHz)
s Low Power Consumption in Two Operating Modes:
- (TBD) mA Typ. (Run Mode)
- (TBD) mA Typ. (STOP Mode)
s Wide Operational Voltage Range (5V ± 10%)
s TTL/CMOS Compatible
s Clock Generator
s One Channel of Z85C30 Serial Communication
Controller (SCC)
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
s On-Board Z84C30 CTC
s Two 8-Bit General-Purpose Parallel Ports
s Memory Configurable RAM and ROM Chip Select Pins
s 100-Pin QFP Package
GENERAL DESCRIPTION
The Z80181 SACSmart 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
Circuit
Device
Power
Ground
V
CC
GND
V
DD
VSS
DS971800500
PS009701-0301
2-1


Zilog Electronic Components Datasheet

Z80181 Datasheet

SMART ACCESS CONTROLLER

No Preview Available !

Zilog
GENERAL DESCRIPTION (Continued)
Z80181
SMART ACCESS CONTROLLER SAC
D7-D0
Control
A19-A0
Z80180
Compatible
Core
/ROMCS
/RAMCS
Glue
Logic
A19-A12
Address
Decode
Logic
SCC
(1 Channel)
CTC
Tx Data
Rx Data
Modem/Control
8 Signals
PIA1
PIA2
Bit Programmable
8 Bi-directional I/O
or I/O Pins of CTC
Bit Programmable
8 Bi-directional I/O
Z80181 = Z180 + SCC/2 + CTC + PIA
Figure 1. Z80181 Functional Block Diagram
2-2
PS009701-0301
DS971800500


Part Number Z80181
Description SMART ACCESS CONTROLLER
Maker Zilog
Total Page 30 Pages
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