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Z86317 Datasheet, PDF (1/8 Pages) Zilog, Inc. – CMOS Z8 8-BIT MICROCONTROLLER
PRELIMINARY
Z86317
CMOS Z8® 8-BIT MCU
PRELIMINAR Y
CUSTOMER P ROCUREMENT S PECIFICA TION
FEATURES
Part ROM RAM* Speed I/O Package
Number (KB) (Bytes) (MHz)
(18-Pin)
Z86317 2
124
4
13 DIP, SOIC
*General Purpose
s 4.5- to 5.5-Volt Operating Range
s 0°C to + 40°C Operating Temperature Range
s Low-Power Consumption: 33 mW (Typical)
Z86317
CMOS Z8® 8-BIT MICROCONTROLLER
s P24-P27 Can be Configured as a Voltage Divider
During Input Mode
s On-Chip Precision RC Oscillator (Tolerance = ± 10%)
s Fast Instruction Pointer: 1.5 µs @ 4 MHz
s ESD Protection Circuitry
s Hardwired Watch-Dog Timer (WDT)
GENERAL DESCRIPTION
The Z86317 is a member of the Z8® family of CMOS
microcontrollers architected to be used in mouse applica-
tions. These devices offer on-board pull-up and pull-down
resistors, a scalable trip-point buffer to accommodate
opto-transistor outputs, and high drive ports capable of up
to 10 mA current sinking per pin (six pins maximum).
A permanently enabled Watch-Dog Timer ensures opera-
tional reliability across a broad range of mouse application
environments. The precision RC oscillator filters out high-
frequency noise from the oscillator input pin. When config-
ured as inputs, P24-P27 are configured as voltage divider
(25K pull-up / 7.5K pull-down). The input levels are ad-
justed for connection to the emitters of the opto-transistors
and switch at a voltage level of 0.4 V
DD.
For applications requiring powerful I/O capabilities, the
Z86317 provides dedicated input and output lines that are
grouped into three ports. There are two basic address
spaces available to support this configuration: Program
Memory, and 124 bytes of general-purpose registers.
The Z86317 device provides two on-chip 8-bit program-
mable counter/timers with a large number of user-select-
able modes. Each counter/timer is driven by its own 6-bit
programmable prescaler. The Z86317 counter/timers
offload system real-time tasks such as counting/timing
and input/output data communications for increased sys-
tem efficiency.
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
VCC
VDD
Ground
GND
VSS
DS96KEY1102
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