Part ROMRAM*SpeedI/OPackage
Number (KB)(Bytes)(MHz)(18-Pin)
Z863172124413DIP, SOIC
*General Purpose
■4.5- to 5.5-Volt Operating Range
■0°C to + 40°C Operating Temperature Range
■Low-Power Consumption: 33 mW (Typical)
GENERAL DESCRIPTION
The Z86317 is a member of the Z8® family of CMOS
microcontrollers architected to be used in mouse applications. 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 operational reliability across a broad range of mouse application
environments. The precision RC oscillator filters out highfrequency noise from the oscillator input pin. When configured as inputs, P24-P27 are configured as voltage divider
(25K pull-up / 7.5K pull-down). The input levels are adjusted for connection to the emitters of the opto-transistors
and switch at a voltage level of 0.4 V
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 programmable counter/timers with a large number of user-selectable 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 system 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:
ConnectionCircuitDevice
PowerV
GroundGNDV
CC
V
DD
SS
DS96KEY1102
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PRELIMINARY
GENERAL DESCRIPTION (Continued)
CMOS Z8® 8-BIT MCU
Z86317
Input
Port 3
Counter/
Timers (2)
Interrupt
Control
VDD
ALU
FLAG
Register
Pointer
Register File
144 x 8-Bit
VSS
AGND
RCIN
Machine
Timing & Inst.
Control
Prg. Memory
2048 x 8-Bit
Program
Counter
Port 2
I/O
(Bit Programmable)
Figure 1. Z86317 Functional Block Diagram
Port 0
I/O
2
DS96KEY1102
PIN DESCRIPTIONS
PRELIMINARY
CMOS Z8® 8-BIT MCU
Z86317
P24
P25
P26
P27
VDD
RCIN
AGND
P31
NC
1
2
3
4
5
6
7
8
9
Z86317
18
17
16
15
14
13
12
11
10
P23
P22
P21
P20
Gnd
P02
P01
P00
P33
Figure 2. 18-Pin DIP/SOIC Pin Configuration
PIN FUNCTIONS
RCIN. A precision 1% resistor is connected to RCIN,
generating oscillation with an internal capacitor.
Table 2. Z86317 RC Frequency vs. External Precision Resistor
Resistor values and corresponding frequencies are shown
in the following table and graph chart.
External ResistorAverage Frequency
14K4.140 MHz
16K3.627 MHz
20K2.925 MHz
22K2.681 MHz
24K2.462 MHz
26K2.273 MHz
External ResistorAverage Frequency
28K2.121 MHz
30K1.982 MHz
32K1.856 MHz
34K1.755 MHz
36K1.657 MHz
38K1.568 MHz
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STANDARD TEST CONDITIONS
PRELIMINARY
CMOS Z8® 8-BIT MCU
Z86317
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to Ground.
Positive current flows into the referenced pin (Figure 3).
ABSOLUTE MAXIMUM RATINGS
SymParameterMinMaxUnits
V
T
STG
T
A
Notes:
* Voltages on all pins with respect to Ground.
† See Ordering Information.
Supply Voltage*–0.3+7V
DD
Storage Temp–65°+150°C
Oper Ambient Temp††C
From Output
Under Test
150 pFI
Figure 3. Test Load Diagram
Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; operation of the device at
any condition above those indicated in the operational
sections of these specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect device reliability.
CAPACITANCE
TA = GND = 0V, f = 1.0 MHz, unmeasured pins returned to Ground.
and Fall Times
3TwCInput Clock Width5.5V475100ns[1]
4TwTinLTimer Input Low Width5.5V7070ns[1]
5TwTinHTimer Input High Width5.5V2.5TpC2.5TpC[1]
6TpTinTimer Input Period5.5V4TpC4TpC[1]
7TrTin,Timer Input Rise5.5V100100ns[1]
TtTinand Fall Timer
8TwILInt. Request Input5.5V7070ns[1,2]
Low Time
MinMaxMinMaxUnitsNotes
Z86317
9TwIHInt. Request Input5.5V2.5TpC2.5TpC[1,2]
High Time
10 TwdtWatch-Dog Timer5.5V1010ms[1]
Time Out Timer
11 T
POR
Notes:
[1] Timing Reference uses 0.9 VDD for a logic 1 and 0.1 VDD for a logic 0.
[2] Interrupt request through Port 3 (P33-P31)
Zilog’s products are not authorized for use as critical components in life support devices or systems unless a specific written
agreement pertaining to such intended use is executed between
the customer and Zilog prior to use. Life support devices or
systems are those which are intended for surgical implantation
into the body, or which sustains life whose failure to perform,
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result in
significant injury to the user.
Zilog, Inc. 210 East Hacienda Ave.
Campbell, CA 95008-6600
Telephone (408) 370-8000
FAX 408 370-8056
Internet: http://www.zilog.com
DS96KEY1102
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