* This specification are subject to be changed without notice.

EM73P968

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

8.14.2001

Preliminary

GENERAL DESCRIPTION

EM73P968 is an advanced single chip CMOS 4-bit one time programming (OTP) micro-controller. It contains

16K-byte ROM, 2.5K nibbles RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/

counters for the kernel function. EM73P968 also contains 6 interrupt sources, 1 input port, 8 bidirection ports, Max

LCD display (52x5), built-in watch-dog-timer and high speed Timer/Counter.

An analog to digital (A/D) converter having 8-bit multipler analog input and 8-bit resolution. Serial peripheral

interface (SPI).

EM73P968 has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption.

FEATURES

Operation voltage

: 2.2V ~ 6V.

Clock source

: Dual clock system. Low-frequency oscillator is Crystal or RC oscillator (32K Hz,

connect an external resistor) by mask option and high-frequency oscillator is RC

(Connect an external resistor) or Crystall oscillator.

Instruction set

: 107 powerful instructions.

Instruction cycle time : Up to 2us for 4 MHz (high speed clock).

122 盜 for 32768 Hz (low speed clock with frequency Double)

ROM capacity

: 16K x 8 bits.

RAM capacity

: 2.5K x 4 bits.

Input port

: 1 port, P0(0..3), IDLE/STOP releasing function are available by mask option.

Output port

: 9 pins (P17.0, P30, P31), P17.0, P30, P31 are shared with LCD pins.

Bidirection port

: 9 ports (P1, P2, P4, P5, P6, P7, P8, P11, P15). IDLE/STOP releasing function are

available by mask option for P8(0..3), P5 and P6 have high current sink.

12-bit timer/counter : Two 12-bit timer/counters are programmable for timer, event counter and pulse width

measurement.

A/D converter

: An analog to digital (A/D) converter having 8-bit multipler analog input and 8-bit

resolution.

SPI

: Serial peripheral interface.

Built-in watch-dog-timer : It is available by mask option.

Built-in time base counter : 22 stages.

Built-in high Speed Timer/Counter : Could be timer.

Subrountine nesting : Up to 13 levels.

Interrupt

: External . . . . . 2 input interrupt sources.

Internal . . . . . . 2 Timer overflow interrupts, 1 time base interrupt.

1 high speed counter overflow interrupt.

LCD driver

: 52 X 5 dots, 1/3 bias, 1/4 or 1/5 duty by mask option.

Power saving function : SLOW, IDLE, STOP operation mode.

Package type

: Chip form.

QFP 128 pin.

APPLICATIONS

EM73P968 is suitable for application in family applicance, consumer products, hand held games, calculator and

the toy controller.

* This specification are subject to be changed without notice.

8.14.2001

EM73P968

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminar

Symbol

Pin-type

Function

Power supply (+)

Power supply (-)

Vref

ADC power (+)

ADSS

ADC power (-)

RESET

RESET-A

System reset input signal, low active

mask option : none

pull-up

XIN/RC

OSC

OSC-A/OSC-H1 Crystal/RC clock source connecting pin

XOUT

OSC-A

Crystal connecting pin

LXIN

OSC-B/OSC-H2 Crystal/RC connecting pin for low speed clock source

LXOUT

OSC-B

Crystal connecting pin for low speed clock source

P0(0..3)/WAKEUP(0..3) INPUT-K

4-bit input port with IDLE/STOP releasing function

P0.0/ACLK : address counter clock for programming OTP.

P0.1/PGMB : program data to OTP cells for programming OTP.

P0.2/OEB : data output enable for programming OTP.

P0.3/DCLK : data in/out clock signal for programming OTP.

mask option 1 : wakeup disable

wakeup enable

mask option 2 :low current pull up

normal current pull up

high current pull up

none

FUNCTION BLOCK DIAGRAM

PIN DESCRIPTIONS

VADSS

VAD

Vref

(AIN 0~3)P6/WAKEUP

(AIN 4~7)P7/WAKEUP

Interrupt

Control

Time

Base

Timer/Counter

(TA,TB)

System Control

Instruction Decoder

Instruction Register

ROM

Data Bus

Reset

Control

Clock

Generator

Timing

Generator

Sleep Mode

Control

Data pointer

ACC

ALU

Flag

Stack pointer

Stack

RAM

I/O Control

RESET

XIN

XOUT

Clock

Generator

(slow)

LXOUT LXIN

LCD

RLC

COM0~COM3

SEG0~SEG43

V1
V2
V3

TEST

VSS

VDD

P1/W

AKEUP

P11/W

AKEUP

P15.2/W

AKEUP

P15.3/W

AKEUP

P0/WAKEUP

/WAKEUP

P8/W

AKEUP

P17.0/COM4

P30/SEG(44~47)

P31/SEG(48~51)

ADC

SPI

P15.0/P15.1/
WAKEUP

* This specification are subject to be changed without notice.

EM73P968

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

8.14.2001

Preliminary

P8.1(TRGB)/WAKEUPB, I/O-R1

2-bit bidirection I/O port with timer/counter A, B external input and

/DOUT

IDLE/STOP releasing function

P8.3(TRGA)/WAKEUPD

P8.1/DOUT : data output for programming OTP

mask option 1 : wakeup disable

wakeup enable

mask option 2 : low current push pull

normal current push pull

high current push pull

none

P6(0..3)/WAKEUP(20..23) I/O-R1

8-bit bidirection I/O port with IDLE/STOP releasing function.

AIN (0..3)

Share with A/D analog input pin.

P7(0..3)/WAKEUP(24..27)

mask option 1 : wakeup disable

AIN (4..7)

wakeup enable

mask option 2 : low current push pull

normal current push pull

high current push pull

none

P4(0..3)/WAKEUP(12,15) I/O-R1

4-bit bidirection I/O port with IDLE/STOP releasing function

mask option 1 : wakeup disable

wakeup enable

mask option 2 : low current push pull

normal current push pull

high current push pull

none

PIN DESCRIPTIONS

Symbol

Pin-type

Function

P8.0(INT1)/WAKEUPA I/O-R1

2-bit bidirection I/O port with external interrupt sources input and IDLE/

/DIN

STOP releasing function

P8.2(INT0)/WAKEUPC

P8.0/DIN : data input for programming OTP

mask option 1 : wakeup disable

wakeup enable

mask option 2 : low current push pull

normal current push pull

high current push pull

none

* This specification are subject to be changed without notice.

8.14.2001

EM73P968

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminar

PIN DESCRIPTIONS

Symbol

Pin-type

Function

P1(0..3)/WAKEUP(4..7) I/O-R1

18-bit bidirection I/O pins with IDLE/STOP releasing function

P2(0..3)/WAKEUP(8..11)

mask option 1 : wakeup disable

P5(0..3)/WAKEUP(16..19)

wakeup enable

P11(0..3)/

mask option 2 : low current push pull

WAKEUP(28..31)

normal current push pull

P15.2/P15.3/

high current push pull

WAKEUP(34,35)

none

P15.0/WAKEUP(32)

1-bit bidirection I/O pins with IDLE/STOP releasing function. Share with

SPI data input/output pin.

mask option 1 : wakeup disable

wakeup enable

mask option 2 : low current push pull

normal current push pull

high current push pull

none

P15.1/WAKEUP(33)

I/O-R1

1-bit bidirection I/O pins with IDLE/STOP releasing function.Share with

SPI clock input/output pin.

mask option 1 : wakeup disable

wakeup enable

mask option 2 : low current push pull

normal current push pull

high current push pull

none

P17.0/COM4

Output-L

1-bit output pin with LCD common pin

mask option : LCD common pin

Push pull

Open-drain

P30(0..3)/SEG(51..48)

Output-M

8-bit output pins are shared with LCD segment pin

P31(0..3)/SEG(47..44)

mask option : LCD segment pin

Low current push pull

Normal current push pull

High current push pull

Open drain

COM0~COM3

LCD common output pins

SEG0~SEG43

LCD segment output pins

VRLC, V1, V2, V3

LCD bias voltage pins

TEST

Test pin must be connected to VSS

VPP : high voltage (12V) power source for programming OTP

This

specification

are
subject

be
changed

without

notice.

EM73P968

4-BIT

MICRO-CONTROLLER

FOR

LCD

PRODUCT

8.14.2001

eliminary

PIN
ASSIGNMENT

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

102
101
100

99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

SEG33

SEG34

SEG35

SEG36

SEG37

SEG38

SEG39

SEG40

SEG41

SEG24

SEG25

SEG26

SEG27

SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
SEG51

VPP

ACLK/P0.0

PGM/P0.1

OE/P0.2

DCLK/P0.3

P1.0
P1.1
P1.2
P1.3
P2.0
P2.1
P2.2
P2.3
P4.0
P4.1
P4.2
P4.3
P5.0
P5.1
P5.2

VR2

VR1

LXOUT

VDDC

LXIN

VSS

XOUT

VDDI

XIN

VSS

P8.3

P8.2

DOUT/P8.1

DIN/P8.0

VAD

VREF

VADSS

SEG21
SEG20
SEG19
SEG18
SEG17

SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0

EM73P968

QFP 128

31
32
33
34
35
36
37
38

103

104

105

106

107

108

P5.3

RESET

P6.0
P6.1
P6.2
P6.3
P7.0
P7.1

SEG29

SEG30

SEG31

SEG32

SEG23

SEG28

SEG16

P7.3

P7.2

80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65

COM4
COM3
COM2
COM1
COM0
P15.3
P15.2
P15.1
P15.0
P11.3
P11.2
P11.1
P11.0
VRLC
VR3

SEG22

Part Number EM73P968