* This specification are subject to be changed without notice.

EM73PA88A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

10.8.2001

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GENERAL DESCRIPTION

EM73PA88A is an advanced single chip CMOS 4-bit one-time programming (OTP) micro-controller. It contains
16K-byte ROM, 500-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/
counters for the kernel function. EM73PA88A also equipped with 6 interrupt sources, 3 I/O ports (including 1
input port and 2 bidirection ports), LCD display (64x16), built-in sound generator and speech synthesizer can direct
drive speaker.
It's low power consumption and high speed feature are further strengten with DUAL, SLOW, IDLE and STOP
operation mode for optimized power saving.

FEATURES

· Operation voltage

: 2.2V to 4.8V.

· Clock source

: Dual clock system. Low-frequency oscillator is 32 KHz Crystal or RC oscillator

and high-frequency oscillator is a built-in internal oscillator (4.6 MHz).

· Instruction set

: 107 powerful instructions.

· Instruction cycle time

: 1.7µs for 4.6M Hz (high speed clock).

244µs for 32768 Hz (low speed clock).

· ROM capacity

: 16K x 8 bits.

· RAM capacity

: 500 x 4 bits.

· Input port

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

(each input pin has a pull-up and pull-down resistor available by mask option).

· Bidrection port

: 2 ports (P4, P8). IDLE/STOP release function for P8(0..3) is available by mask

option.

· Built-in watch-dog-timer counter : It is available by mask option.
· 12-bit timer/counter

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

width measurement mode.

· Built-in time base counter : 22 stages.
· Subroutine nesting

: Up to 13 levels.

· Interrupt

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

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

1 speech interrupt.

· LCD driver

: 64x16 dots, 1/16 duty, 1/5 bias with voltage multiplier.

· Sound effect

: Tone generator and random generator.

· Speech synthesizer

: 448K speech data ROM (use as 448K nibbles data ROM).

· PWM or current D/A

: Output selection by mask option.

· Power saving function

: SLOW, IDLE, STOP operation modes.

· Package type

: Chip form 109 pins.

QFP form 160 pins (AQ).
QFP form 128 pins (BQ).

* This specification are subject to be changed without notice.

10.8.2001

EM73PA88A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

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FUNCTION BLOCK DIAGRAM

Interrupt

Control

Time

Base

Timer/Counter

(TA,TB)

System Control

Instruction Decoder

Instruction Register

ROM

Data Bus

Reset

Control

Clock

Generator

Timing

Generator

Clock Mode

Control

Data pointer

ACC

ALU

Flag

Stack pointer

Stack

RAM

I/O Control

P0.0/WAKEUP0
P0.1/WAKEUP1
P0.2/WAKEUP2
P0.3/WAKEUP3

P4.0

P4.1

P4.2

P4.3

P8.0(INT1)/WAKEUPA

P8.1(TRGB)/WAKEUPB

P8.2(INT0)/WAKEUPC

P8.3(TRGA)/WAKEUPD

RESET

CLK

LXOUT

Speech

synthesizer

LCD Driver

V1~V5

VA,VB

COM0~COM15

BZ1

BZ2

SEG0~SEG63

LXIN

Sound

Generator

* This specification are subject to be changed without notice.

EM73PA88A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

10.8.2001

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PIN ASSIGNMENT

60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41

110

109

108

107

106

105

104

103

102

101

100

141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34

NC
NC
NC
NC
NC
NC
NC
NC
NC

SEG33

SEG32

P8.0/DIN

P8.1/DOUT

P8.2

P8.3

P4.0

P4.1

P4.2

P4.3

P0.0/ACLK

P0.1/PGM

P0.2/OE

P0.3/DCLK

VDD2

BZ1

BZ2

VSS

RESET

CLK

VPP

LXIN

LXOUT

VDD

SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
NC
NC
NC
NC
NC
NC
NC
NC
NC

SEG62

SEG63

COM15

COM14

COM13

COM12

COM11

COM10

COM9

COM8

COM7

COM6

COM5

COM3

COM2

COM1

COM0

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

EM73PA88AAQ

QFP 160

80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61

120

119

118

117

116

115

114

113

112

111

121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140

SEG31

SEG30

SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18

NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

SEG56

SEG57

SEG58

SEG59

SEG60

SEG61

SEG55

SEG48
SEG47
SEG46
SEG45

SEG52
SEG51
SEG50
SEG49

NC
NC

SEG54
SEG53

NC
NC
NC
NC

COM4

* This specification are subject to be changed without notice.

10.8.2001

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4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

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PIN ASSIGNMENT

60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41

102

101

100

109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128

NC
NC

EM73PA88ABQ

QFP 128

64
63
62
61

103
104
105
106
107
108

NC
NC
NC

40
39

NC
NC

P8.0/DIN

P8.1/DOUT

P8.2

P8.3

P4.0

P4.1

P4.2

P4.3

P0.0/ACLK

P0.1/PGM

P0.2/OE

P0.3/DCLK

VDD2

BZ1

BZ2

VSS

RESET

CLK

VPP

LXIN

LXOUT

VDD

SEG31

SEG32

SEG30

SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29

SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18

SEG62

SEG63

COM15

COM14

COM13

COM12

COM11

COM10

COM9

COM8

COM7

COM6

COM5

COM3

COM2

COM1

COM0

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG56

SEG57

SEG58

SEG59

SEG60

SEG61

COM4

SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34

SEG48
SEG47
SEG46
SEG45

SEG52
SEG51
SEG50
SEG49

SEG54
SEG53

SEG55

SEG33

* This specification are subject to be changed without notice.

EM73PA88A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

10.8.2001

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Symbol

Pin-type

Function

VDD

Power supply (+).
Power supply (+) for programming OTP.

VDD2

Power supply (+).

VSS

Power supply (-).
Power supply (-) for programming OTP.

RESET

RESET-A

System reset input signal, low active.
Reset input signal for programming OTP.
Always internal pull-up.

CLK

OSC-G

Capacitor connecting pin for internal high frequency oscillator.

LXIN

OSC-B/OSC-H Crystal or RC osc connecting pin for low speed clock source.

LXOUT

OSC-B

Crystal osc connecting pin for low speed clock source.

P0(0..3)/WAKEUP0..3

INPUT-B

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 :

wakeup enable, pull-up
wakeup enable, none
wakeup disable, pull-up
wakeup disable, pull-down
wakeup disable, none

P4(0..3)

I/O-O

4-bit bidirection I/O port with high current source.
mask option :

open-drain
push-pull, high current PMOS
push-pull, low current PMOS

P8.0(INT1)/WAKEUPA

I/O-L

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

P8.2(INT0)/WAKEUPC

/STOP releasing function.
P8.0/DIN : data input for programming OTP.
mask option :

wakeup enable, push-pull

wakeup disable, push-pull
wakeup disable, open-drain

P8.1(TRGB)/WAKEUPB I/O-L

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

P8.3(TRGA)/WAKEUPD

/STOP releasing function.
P8.1/DOUT : data output for programming OTP.
mask option :

wakeup enable, push-pull

wakeup disable, push-pull
wakeup disable, open-drain

BZ1

Tone / Speech PWM / D/A output pin.

BZ2

Tone / Speech PWM output pin.

V1, V2, V3, V4, V5,

LCD bias pins.

VA, VB
COM0~COM15

LCD common output pins.

SEG0~SEG63

LCD segment output pins.

TEST/VPP

Test pin must be floating.
VPP : high voltage (12V) power source for programming OTP.

PIN DESCRIPTIONS

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