ZILOG Z86C15 Datasheet

FEATURES

Z86C15

CP96KEY0603

CUSTOMER PROCUREMENT SPECIFICATION

Z86C15

CMOS Z8® 8-BIT MCU
KEYBOARD CONTROLLER

ROM RAM* I/O Speed Pin Count /

(Kbytes) (Bytes) Lines (MHz) Package

4 2 36 3 2 5 40 DIP

44 PLCC

44 QFP

* General-Purpose

n 4.5- to 5.5-Volt Operating Range
n 0°C to 70°C Operating Temperature Range

n Expanded Register File

n Low-Power Consumption: 30 mW @ 5 MHz Typical

GENERAL DESCRIPTION

The Z86C15 Keyboard Controller is a full-featured mem­ber of the Z8® microcontroller family offering a unique
register-to-register architecture that avoids accumulator
bottlenecks and is more code efficient than RISC
processors.

For applications demanding powerful I/O capabilities, the
Z86C15 provides 32 pins dedicated to input and output.
These lines are grouped into four ports, each port consist­ing of eight lines, and are configurable under software
control to provide timing, status signals, and serial or
parallel I/O ports.

n Six Vectored, Priority Interrupts from

Six Different Sources

n Two Programmable 8-Bit Counter/Timers,

Each with 6-Bit Programmable Prescaler

n Power-On Reset (POR) Timer, Hardware Watch-Dog

Timer (WDT)

n Digital Inputs CMOS Levels with

Internal Pull-Up Resistors

n Four Direct Connect LED Drive Ports

n On-Chip RC Oscillator, 4 MHz to 5 MHz

The Z86C15 achieves low-EMI by means of several modi­fications in the output drivers and clock circuitry of the
device.

By means of an expanded register file, the designer has
access to three additional system control registers that
provide extra peripheral devices, I/O ports, and register
addresses (see Functional Block Diagram).

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).

Two on-chip counter/timers, with a large number of user­selectable modes, are available to relieve the system of
administering real-time tasks, such as counting/timing and
I/O datacommunications.

Six different internal or external interrupt sources are
maskable and prioritized so a vectored address is pro­vided for efficient interrupt subroutine handling and
multitasking functions.

CP96KEY0603 (3/96)

Power connections follow conventional descriptions below:

Connection Circuit Device

Power V

Ground GND V

CC

V

DD
SS

1

GENERAL DESCRIPTION (Continued)

Z86C15

CP96KEY0603

Output Input

Port 3

Counter/

Timers (2)

Interrupt

Control

Port 2

Vcc GND

ALU

Flags

Register

Pointer

Register File

258 x 8-Bit

Port 0 Port 1

RCIN

CLKOUT

Machine

Timing & Inst.

Control

WDT
POR

Program

Memory

Program

Counter

/RESET

/WDTOUT

I/O

(Bit Programmable)

44 8

I/O

(Nibble Programmable)

(Byte Programmable)

Z86C15 Functional Block Diagram

I/O

2

PIN IDENTIFICATION

/

is

Z86C15

CP96KEY0603

VCC

CLKOUT

RCIN

P37
P30

/RESET

AGND

*NC

WDTOUT

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

Z86C15

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: Pin 8 is connected to the chip, although it
used only for testing. This pin must float.

40-Pin DIP Pin Configuration

40-Pin DIP Pin Identification

Pin # Symbol Function Direction

1VCCPower Supply Input
2 CLKOUT Z8 System Clock Output
3 RCIN RC Oscillator Clock Input
4 P 37 Port 3, Pin 7 Output
5 P 30 Port 3, Pin 0 Input

6 /RESET Reset Input
7 AGND Analog Ground
*8 NC Not Connected
9 /WDTOUT Watch-Dog Timer Output
1 0 P 35 Port 3, Pin 5 Output

Pin # Symbol Function Direction

11 GND Ground
1 2 P 32 Port 3, Pin 2 Input
13-20 P00-P07 Port 0, Pins 0,1,2,3,4,5,6,7 In/Output
21-28 P10-P17 Port 1, Pins 0,1,2,3,4,5,6,7 In/Output
2 9 P 34 Port 3, Pin 4 Output

3 0 P 33 Port 3, Pin 3 Input
31-38 P20-P27 Port 2, Pins 0,1,2,3,4,5,6,7 In/Output
3 9 P 31 Port 3, Pin 1 Input
4 0 P 36 Port 3, Pin 6 Output

3

PIN IDENTIFICATION (Continued)

/RESET

AGND

*N/C

/WDTOUT

P35

GND

P32
P00

P01
P02
N/C

7
8

9
10
11
12
13
14
15
16
17

N/C

P30

P37

RCIN

6543214443424140

VCC

CLKOUT

P36

P31

P27

P26

P25

Z86C15

PLCC

39
38
37
36
35
34
33
32
31
30
29

Z86C15

CP96KEY0603

N/C
P24
P23
P22
P21
P20
P33
P34
P17
P16
P15

18 19 20 21 22 23 24 25 26 27 28

P03

P04

P05

P06

*Note: Pin 9 is connected to the chip, although it is used
only for testing. This pin must float.

44-Pin PLCC Pin Assignments

44-Pin PLCC Pin Identification

Pin # Symbol Function Direction

1VCCPower Supply Input
2 CLKOUT Z8 System Clock Output
3 RCIN RC Oscillator Clock Input
4 P 37 Port 3, Pin 7 Output

5 P 30 Port 3, Pin 0 Input
6 N/C Not Connected
7 /RESET Reset Input
8 AGND Analog Ground

P07

P10

P11

P12

P13

P14

N/C

Pin # Symbol Function Direction

14-16 P00-P02 Port 0, Pins 0, 1, 2 In/Output
17 N/C Not Connected
18-22 P03-P07 Port 0, Pins 3, 4, 5, 6, 7 In/Output
23-27 P10-P14 Port 1, Pins 0, 1, 2, 3, 4 In/Output

28 N/C Not Connected
29-31 P15-P17 Port 1, Pins 5, 6, 7 In/Output
3 2 P3 4 Port 3, Pin 4 Output
3 3 P3 3 Port 3, Pin 3 Input

*9 N/C Not Connected
10 /WDTOUT Watch-Dog Timer Output
1 1 P 35 Port 3, Pin 5 Output
12 GND Ground
1 3 P 32 Port 3, Pin 2 Input

4

34-38 P20-P24 Port 2, Pins 0, 1, 2, 3, 4 In/Output
39 N/C Not Connected
40-42 P25-P27 Port 2, Pins 5, 6, 7 In/Output
4 3 P3 1 Port 3, Pin 1 Input
4 4 P3 6 Port 3, Pin 6 Output

/RESET

AGND

*N/C

/WDTOUT

P35

GND

P32
P00
P01
P02
N/C

RCIN

CLKOUT

P30

P37

N/C

44 43 42 41 40 39 38 37 36 35 34

1
2
3
4
5
6
7
8
9

10

11

13 14 15 16 17 18 19 20 21 22

12

VCC

Z86C15

QFP

P36

P31

P27

P26

P25

33
32
31
30
29
28
27
26
25
24
23

Z86C15

CP96KEY0603

N/C
P24

P23
P22
P21
P20
P33
P34
P17
P16
P15

P03

P04

P05

P06

*Note: Pin 3 is connected to the chip, although it is used
only for testing. This pin must float.

44-Pin QFP Pin Assignments

44-Pin QFP Pin Identification

Pin # Symbol Function Direction

1 /RESET Reset Input
2 AGND Analog Ground
*3 N/C Not Connected
4 /WDTOUT Watch-Dog Timer Output

5 P3 5 Port 3, Pin 5 Output
6 GND Ground
7 P3 2 Port 3, Pin 2 Input
8-10 P00-P02 Port 0, Pins 0, 1, 2 In/Output
11 N/C Not Connected Input

12-16 P03-P07 Port 0, Pins 3,4,5,6,7 In/Output
17-21 P10-P14 Port 1, Pins 0,1,2,3,4 In/Output
22 N/C Not Connected
23-25 P15-P17 Port 1, Pins 5, 6,7 In/Output

P07

P10

P12

P13

P14

P11

N/C

Pin # Symbol Function Direction

2 6 P 3 4 Port 3, Pin 4 Output
2 7 P 3 3 Port 3, Pin 3 Input
28-32 P20-P24 Port 2, Pins 0, 1, 2, 3, 4 In/Output
33 N/C Not Connected

34-36 P25-P27 Port 2, Pins 5, 6, 7 In/Output
3 7 P 3 1 Port 3, Pin 1 Input
38 P36 Port 36 Output
39 V

CC

Power Supply

40 CLKOUT Z8 System Clock Output
41 RCIN RC Oscillator Clock Input
4 2 P 3 7 Port 3, Pin 7 Output
4 3 P 3 0 Port 3, Pin 0 Input
44 N/C Not Connected

5

ABSOLUTE MAXIMUM RATINGS

Z86C15

CP96KEY0603

Symbol Description Min Max Units

V

CC

T

STG

T

A

Notes:

* Voltage on all pins with respect to GND.

Supply Voltage* –0.3 +7.0 V
Storage Temp –65 +150 °C
Oper Ambient Temp 0 +105 °C

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).

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.

From Output

Under Test

150 pF

Test Load Diagram

CAPACITANCE

T

= 25°C; VCC = GND = 0V; f = 1.0 MHz; unmeasured pins returned to GND.

A

Parameter Max

Input Capacitance 12 pF
Output Capacitance 12 pF
I/O Capacitance 12 pF

FREQUENCY

Frequency 4 MHz – 5 MHz
Tolerance ±10%

Frequency tolerance limit only applies to the packaged device and not die or wafer.

6

DC CHARACTERISTICS (Z86C15)

VCC = 5.0V ±10% @ 0°C to +70°C

Typical

Sym Parameter Min Max @ 25°C Unit Condition

Z86C15

CP96KEY0603

V
V
V
V

V
V
V
V
V
V
I

OL

I

IL

I

OL

I

CC

Clock Input High Voltage 0.7 V

CH

Clock Input Low Voltage GND –0.3 0.2 V

CL

Input High Voltage 0.7 V

IH

Input Low Voltage GND –0.3 0.2V

IL

Reset Input High Voltage 0.8 V

RH

Reset Input Low Voltage GND –0.3 0.2 V

RL

Output High Voltage VCC –0.4 3 .1 V IOH = –2.0 mA

OH

Output High Voltage VCC 0.6 V IOH = –2.0 mA (See note [1] below.)

OH

Output Low Voltage 0.8 V IOL = 4 mA (See note [1] below.)

OL

Output Low Voltage .4 V IOL= 4 mA

OL

VCC to +0.3V 2.5 V Driven by External Clock Generator

CC

V

CC

CC

+ 0.3 2 .5 V

CC

CC

V

CC

1.5 V Driven by External Clock Generator

CC

1.5 V

2.1 V

1.7 V

CC

Output Low 8 20 mA VOL= V
Input Leakage –1 1 <1 µAVIN = 0V, 5.25V (See note [2] beow.)

Output Leakage –1 1 <1 µAVIN = 0V, 5.25V
VCC Supply Current 12 6 mA @ 5.0 MHz

POR Power On Reset 84 196 140 m s
I

CC1

I

CC2

R
R

Standby Current 4 2.0 mA HALT mode VIN = 0V, VCC @ 5 MHz
Standby Current 20 µA STOP mode VIN = 0V

Pull Up Resistor 6.76 14.04 10.4 Kohm

P

Pull Up Resistor

P

(P26-P27) 1.8 3 2.4 Kohm

R

Pull Up Resistor

P

(Reset) 40 80 60 Kohm

–2.2 V (See note [1] below.)

CC

Note:

[1] Ports P37-P34. These may be used for LEDs or as general-purpose

outputs requiring high sink current.

[2] Input pin without pull-up resistor.

7

Z86C15

CP96KEY0603

AC ELECTRICAL CHARACTERISTICS (Z86C15)

Additional Timing Table

TA = 0°C to +70°C

V

CC

No Symbol Parameter Note [4] Min Max Units Notes

1 TpC Input Clock Period 5.0V 125 100000 ns [1]
2 TrC,TfC Clock Input Rise & Fall Times 5.0V 2 5 n s [1]
3 TwC Input Clock Width 5.0V 37 n s [1]
4 TwTinL Timer Input Low Width 5.0V 7 0 n s [1]
5 TwTinH Timer Input High Width 5.0V 2.5TpC [1]

6 TpTin Timer Input Period 5.0V 4TpC [1]
7 TrTin Timer Input Rise & Fall Timer 5.0V 1 0 0 n s [1]
8A TwIL Int. Request Low Time 5.0V 7 0 n s [1,2]
8 B TwIL Int. Request Low Time 5.0V 3TpC [1,3]

9 TwIH Int. Request Input High Time 5.0V 3TpC [1,2]
10 Twsm STOP Mode Recovery Width Spec 5.0V 20 ns Reg. SMR

5.0V 5TpC Reg. SMR

11 Tost Oscillator Startup Time 5.0V 5TpC [4]

5 MHz

- D5=0

- D5=1

12 Twdt Watch-Dog Timer Delay Time 5.0V 2 ms [5]

5.0V 4 m s [6]

5.0V 8 m s [7]

5.0V 32 ms [8]

Notes:

[1] Timing Reference uses 0.7 VCC for a logic 1 and 0.2 VCC for a logic 0.
[2] Interrupt request via Port 3 (P31-P33).
[3] Interrupt request via Port 3 (P30).
[4] SMR-D5 = 0.
[5] D1 = 0, D0 = 0.{Reg. WDTMR)
[6] D1 = 0, D0 = 1.{Reg. WDTMR)
[7] D1 = 1, D0 = 0.{Reg. WDTMR)
[8] D1 = 1, D0 = 1.{Reg. WDTMR)

8

0

AC ELECTRICAL CHARACTERISTICS

Additional Timing Diagram

Z86C15

CP96KEY0603

Clock

TIN

IRQN

Clock
Setup

Stop

Mode

Recovery

Source

7 7

8

1

2 2 3

4

5

6

9

1

3

11

9

Z86C15

CP96KEY0603

© 1995 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.

10

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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]
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