Datasheet Z8602 Datasheet (ZILOG)

GENERAL DESCRIPTION

The Z8602 Keyboard Controller (KBC™) introduces a new level
of sophistication to single-chip architecture. The Z8602 is a
member of the Z8 single-chip microcontroller family with 2
Kbytes of ROM.

The Z8602 KBC is housed in a 40-lead DIP, and is manufactured
in NMOS technology. Zilog’s microcontroller offers fast execu­tion, more efficient use of memory, more sophisticated interrupt,
input/output bit-manipulation capabilities, and easy hardware/
software system expansion along with low cost and low power
consumption.

The KBC architecture is characterized by a flexible I/O scheme,
an efficient register, I/O, and a number of ancillary features that
are useful in many industrial and advanced scientific applica­tions.

CPS DC-4087-02

Z8602

CUSTOMER PROCUREMENT SPECIFICATION

Z8602

KEYBOARD CONTROLLER (KBC™)
NMOS Z8® 8-BIT MCU

The Z8602 offers low EMI emission achieved by means of
several modifications in the output drivers and clock circuitry of
the device.

There are two basic address spaces available to support this wide
range of configurations: Program Memory and 124 General­Purpose Registers.

The KBC offers two on-chip counter/timers with a large number
of user selectable modes. This unburdens the program from
coping with real-time problems such as counting/timing.

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:

The device applications demand powerful I/O capabilities. The
KBC fulfills this with 32-pins dedicated to input and output.
These lines are grouped into four ports, each port consists of 8
lines, and are configurable under software control to provide
timing, status signals, and serial or parallel I/O ports.

Connection Circuit Device

Power V

Ground GND V

CC

V

DD
SS

DC-4087-02 (11-2-93)

1

GENERAL DESCRIPTION (Continued)

CPS DC-4087-02

Z8602

Port 3

Counter/

Timers (2)

Interrupt

Control

Vcc GND XTAL1

Timing & Inst.

ALU

Flags

Register

Pointer

Register File

124 x 8 Bit

XTAL2 /RESETOutput Input

Machine

Control

Program

Memory

Program

Counter

Port 2

I/O

(Bit Programmable)

Port 0 Port 1

44 8

I/O

Output Open Drain

(Nibble Programmable)

Functional Block Diagram

I/O

Output Open Drain

(Byte Programmable)

2

CPS DC-4087-02

p,

e

Z8602

Vcc
XTAL2
XTAL1

P37
P30

/RESET

N/C*
N/C*

N/C

P35

GND

P32
P00
P01
P02
P03
P04
P05
P06
P07

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Z8602

DIP

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

P36
P31
P27
P26
P25
P24
P23
P22
P21
P20
P33
P34
P17
P16
P15
P14
P13
P12
P11
P10

Note: Pins 7 and 8 actually are connected to the chi
although used only for testing. These pins must b
used as floaters by the customer.

40-Lead DIP Pin Configuration

3

CPS DC-4087-02

Z8602

STANDARD TEST CONDITIONS

Standard Test Conditions. The characteristics listed here

apply for standard test conditions as noted. All voltages are
referenced to GND. Positive current flows into the referenced pin
(Test Load Configuration).

ABSOLUTE MAXIMUM RATINGS

Symbol Description Min Max Units

V

CC

T

STG

T

A

Notes:

(*) Voltage on all pins with respect to GND.
† See ordering information

Supply Voltage(*) –0.3 +7.0 V
Storage Temp –65° +150° C
Oper. Ambient Temp. † †

+5V

2.1 k Ω

From Output

Under Test

9.1 k Ω

Test Load Configuration

Stress 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.

4

DC CHARACTERISTICS

VCC = 4.75 V to 5.25V @ 0°C to +70°C

Symbol Parameter Min Max Typ† Unit Condition

CPS DC-4087-02

Z8602

V

CH

V

CL

V

IH

V

IL

V

RH

V

RL

V

OH

Clock Input High Voltage 3.8 V
Clock Input Low Voltage –0.3 0.8 V Driven by External Clock Generator
Input High Voltage 2.0 V
Input Low Voltage –0.3 0.8 V

Reset Input High Voltage 3.8 V
Reset Input Low Voltage –0.3 0.8 V
Output High Voltage 2.0 V IOH= –250 µA (Port 2 only)
Output High Voltage 2.4 V IOH= –250 µA (Port 3 only)

V

OL

I

IL

I

OL

I

IR

I

CC

Notes:

† Typical @ 25°C
1 A combined total of four I/O pins from Ports0, 1, and 2 may be used to sink 10

ma at 0.8 Volts (maximum two pins per port). These may be used for LEDs
or as general purpose outputs requiring high sink current.

Output Low Voltage 0.8 V IOL= +4.0 mA (See Note 1 below.)
Input Leakage –10 10 µAVIN = 0V, 5.25V
Output Leakage –10 10 µAVIN = 0V, 5.25V

Reset Input Current –50 µAVIN = 0V, 5.25V
VCCSupply Current 150 135 mA

CC

CC

CC

V Driven by External Clock Generator

V

V

© 1993 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.

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.

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Campbell, CA 95008-6600
Telephone [phone]
Telex 910-338-7621
FAX [phone]

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