P R E L I M I N A R Y
Z86317
CMOS Z8 8-B
IT
MCU
®
P
RELIMINAR Y
C
USTOMER
P
ROCUREMENT
S
PECIFICA TION
Z86317
CMOS Z8
®
8-B
IT
M
ICROCONTROLLER
FEATURES
Part
ROM
Number (KB)
Z86317
2
RAM* Speed
(Bytes) (MHz)
124
4
I/O
13
Package
(18-Pin)
DIP, SOIC
s
P24-P27 Can be Configured as a Voltage Divider
During Input Mode
On-Chip Precision RC Oscillator (Tolerance =
±
10%)
Fast Instruction Pointer: 1.5
µs
@ 4 MHz
ESD Protection Circuitry
Hardwired Watch-Dog Timer (WDT)
s
s
s
s
*General Purpose
s
s
s
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 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
Power
Ground
Circuit
V
CC
GND
Device
V
DD
V
SS
DS96KEY1102
1
P R E L I M I N A R Y
Z86317
CMOS Z8 8-B
IT
MCU
®
PIN DESCRIPTIONS
Table 1. 18-Pin DIP/SOIC Pin Identification
P24
P25
P26
P27
VDD
RCIN
AGND
P31
NC
1
2
3
4
5
6
7
8
9
18
17
16
15
P23
P22
P21
P20
Gnd
P02
P01
P00
P33
Pin #
1-4
5
6
7
8
9
10
11-13
14
15-18
Symbol
P24-P27
V
DD
RCIN
AGND
P31
NC
P33
P00-P02
V
SS
P20-P23
Function
Port 2, Pins 4,5,6,7
Power Supply
RC Oscillator
Analog Ground
Port 3, Pin 1
Not Connected
Port 3, Pin 3,
Port 0, Pins 0,1,2
Ground
Port 2, Pins 0,1,2,3
Direction
In/Output
Input
Input
Input
Input
Input
In/Output
Input
In/Output
Z86317
14
13
12
11
10
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.
Resistor values and corresponding frequencies are shown
in the following table and graph chart.
Table 2. Z86317 RC Frequency vs. External Precision Resistor
External Resistor
14K
16K
20K
22K
24K
26K
Average Frequency
4.140 MHz
3.627 MHz
2.925 MHz
2.681 MHz
2.462 MHz
2.273 MHz
External Resistor
28K
30K
32K
34K
36K
38K
Average Frequency
2.121 MHz
1.982 MHz
1.856 MHz
1.755 MHz
1.657 MHz
1.568 MHz
DS96KEY1102
3
P R E L I M I N A R Y
Z86317
CMOS Z8 8-B
IT
MCU
®
STANDARD TEST CONDITIONS
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).
From Output
Under Test
I
150 pF
Figure 3. Test Load Diagram
ABSOLUTE MAXIMUM RATINGS
Sym
V
DD
T
STG
T
A
Parameter
Supply Voltage*
Storage Temp
Oper Ambient Temp
Min
–0.3
–65°
†
Max
+7
+150°
†
Units
V
C
C
Stresses greater than those listed under Absolute Maxi-
mum Ratings may cause permanent damage to the de-
vice. 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.
Notes:
* Voltages on all pins with respect to Ground.
† See Ordering Information.
CAPACITANCE
T
A
= GND = 0V, f = 1.0 MHz, unmeasured pins returned to Ground.
Parameter
Input Capacitance
Output Capacitance
I/O Capacitance
Min
0
0
0
Max
10 pF
20 pF
25 pF
V
CC
SPECIFICATION
V
CC
= 4.5V to 5.5V
When using the precision RC oscillator feature
f = 4.0 MHz
±
10% under the following conditions:
s
V
CC
= 5.0V
±
10%
s
Temp 0 to 40°C
s
Application board capacitance: 2.0 pF max.
0.5 pF min.
4
DS96KEY1102
京公网安备 11010802033920号
EEWORLD
