Datasheet Z86317 Datasheet (ZILOG)

FEATURES
PRELIMINARY
P
C
USTOMER PROCUREMENT
Z86317
CMOS Z8® 8-BIT MICROCONTROLLER
S
PECIFICA TION
CMOS Z8® 8-BIT MCU
Z86317
Part ROM RAM* Speed I/O Package Number (KB) (Bytes) (MHz) (18-Pin)
Z86317 2 124 4 13 DIP, 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.
DD.
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)
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:
Connection Circuit Device
Power V
Ground GND V
CC
V
DD SS
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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
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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
Table 1. 18-Pin DIP/SOIC Pin Identification
Pin # Symbol Function Direction
1-4 P24-P27 Port 2, Pins 4,5,6,7 In/Output 5VDDPower Supply Input 6 RCIN RC Oscillator Input 7 AGND Analog Ground Input 8 P31 Port 3, Pin 1 Input
9 NC Not Connected 10 P33 Port 3, Pin 3, Input 11-13 P00-P02 Port 0, Pins 0,1,2 In/Output 14 V
SS
Ground Input
15-18 P20-P23 Port 2, Pins 0,1,2,3 In/Output
Resistor values and corresponding frequencies are shown in the following table and graph chart.
External Resistor Average Frequency
14K 4.140 MHz 16K 3.627 MHz
20K 2.925 MHz 22K 2.681 MHz
24K 2.462 MHz 26K 2.273 MHz
External Resistor Average Frequency
28K 2.121 MHz 30K 1.982 MHz
32K 1.856 MHz 34K 1.755 MHz
36K 1.657 MHz 38K 1.568 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

Sym Parameter Min Max Units
V T
STG
T
A
Notes:
* Voltages on all pins with respect to Ground. † See Ordering Information.
Supply Voltage* –0.3 +7 V
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.
Parameter Min Max
Input Capacitance 0 10 pF Output Capacitance 0 20 pF I/O Capacitance 0 25 pF
VCC SPECIFICATION
VCC = 4.5V to 5.5V When using the precision RC oscillator feature
f = 4.0 MHz ±10% under the following conditions:
V
= 5.0V ± 10%
CC
Temp 0 to 40°C
Application board capacitance: 2.0 pF max.
0.5 pF min.
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PRELIMINARY
DC ELECTRICAL CHARACTERISTICS
Symbol Parameter V
DD
CMOS Z8® 8-BIT MCU
Z86317
TA = 0°C to +40°C Typical
Min Max @ 25°C Units Conditions
V
CH
Clock Input High Voltage 5.5V 0.7 V
V
DD
+ 0.3 3.0 V Driven by External
DD
Clock Generator
V
CL
Clock Input Low Voltage 5.5V VSS – 0.3 0.2 V
DD
1.5 V Driven by External Clock Generator
V
IH
Input High Voltage 5.5V 0.7 V
V
DD
+ 0.3 2.6 V
DD
Schmitt-Triggered
V
IH
Input High Voltage 5.5V 0.7 V
V
DD
+ 0.3 2.6 V
DD
CMOS Input
V
IL
Input Low Voltage 5.5V VSS – 0.3 0.2 V
DD
1.5 V
Schmitt-Triggered
V
IL
Input Low Voltage 5.5V VSS – 0.3 0.2 V
DD
2.4 V
CMOS Input
V
OH
V
OL1
V
OL2
Output High Voltage 5.5V VDD – 0.4 5.5 V IOH = –2.0 mA Output Low Voltage 5.5V 0.4 0.1 V IOL = +4.0 mA Output Low Voltage 5.5V 0.8 0.3 V IOL = 10.0 mA,
6 Pin Max
V
LV
V
TP
VCC Low Voltage Protection 2.5 3 2.7 V @ 2 MHz Max Trip Point Voltage 5.5V 1.9 2.5 2.2 V P24-P27
4.5V 1.5 2.1 1.8 V
I
IL
I
OL
Input Leakage 5.5V –1.0 1.0 0.4 µAV Output Leakage 5.5V –1.0 1.0 0.4 µAV
= OV, V
IN
= OV, V
IN
CC CC
I
DD
Supply Current 5.5V 3.0 1.44 mA All Output and I/O Pins
5.5V 4.0 2.60 mA All Output and I/O Pins
5.5V 6.0 4.28 mA All Output and I/O Pins
I
DD1
Standby Current 5.5V 1.3 0.70 mA HALT mode VIN = 0V,
5.5V 1.5 0.80 mA HALT mode VIN = 0V,
5.5V 2.0 1.0 mA HALT mode VIN = 0V,
I
PU
Pull-Up Current 4.5V –20 µAV P00-02 5.5 –85 µAV P31, P33
I
PD
Pull-Down Current 4.5V +20 µAV P00-02 5.5 +95 µAV P31, P33
I
PU
Pull-Up Current 4.5V –450 µAV P20, P22 5.5 –85 µAV
Notes:
The device is functional to VLV voltage. The minimum operational VDD is determined by the value of the VLV voltage at ambient temperature. The V
voltage increases as the temperature decreases.
LV
Floating @ 1 MHz Floating @ 2 MHz Floating @ 4 MHz
VCC @ 1 MHz VCC @ 2 MHz VCC @ 4 MHz
@ 3V
IH
@ 4V
IH
@ 1V
IL
@ 1V
IL
= 0V
IL
= 0V
IL
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PRELIMINARY
AC ELECTRICAL CHARACTERISTICS Timing Diagrams
CMOS Z8® 8-BIT MCU
Z86317
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PRELIMINARY
CMOS Z8® 8-BIT MCU
AC ELECTRICAL CHARACTERISTICS
TA = 0°C to +40°C
1 MHz 4 MHz
No Symbol Parameter V
DD
1 TpC Input Clock Period 5.5V 1,000 100,000 250 100,000 ns [1] 2 TrC,TfC Clock Input Rise 5.5V 25 25 ns
and Fall Times 3 TwC Input Clock Width 5.5V 475 100 ns [1] 4 TwTinL Timer Input Low Width 5.5V 70 70 ns [1] 5 TwTinH Timer Input High Width 5.5V 2.5TpC 2.5TpC [1] 6 TpTin Timer Input Period 5.5V 4TpC 4TpC [1] 7 TrTin, Timer Input Rise 5.5V 100 100 ns [1]
TtTin and Fall Timer
8 TwIL Int. Request Input 5.5V 70 70 ns [1,2]
Low Time
Min Max Min Max Units Notes
Z86317
9 TwIH Int. Request Input 5.5V 2.5TpC 2.5TpC [1,2]
High Time 10 Twdt Watch-Dog Timer 5.5V 10 10 ms [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)
Power-On Reset Time 5.5V 2 2 ms [1]
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PRELIMINARY
CMOS Z8® 8-BIT MCU
Z86317
© 1996 by Zilog, Inc. All rights reserved. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Zilog, Inc. The information in this document is subject to change without notice. Devices sold by Zilog, Inc. are covered by warranty and patent indemnification provisions appearing in Zilog, Inc. Terms and Conditions of Sale only. Zilog, Inc. makes no warranty, express, statutory, implied or by description, regarding the information set forth herein or regarding the freedom of the described devices from intellectual property infringement. Zilog, Inc. makes no warranty of mer­chantability or fitness for any purpose. Zilog, Inc. shall not be responsible for any errors that may appear in this document. Zilog, Inc. makes no commitment to update or keep current the information contained in this document.
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Zilog, Inc. 210 East Hacienda Ave. Campbell, CA 95008-6600 Telephone (408) 370-8000 FAX 408 370-8056 Internet: http://www.zilog.com
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