APLUS APU4003T Datasheet

4-Bit Micro-Controller With EPROM, 1K Word

APU4003T

Features

y Very low current dissipation.
y Wide operating voltage range.
y Supports both Ag and Li batteries.
y Powerful instruction set.
y 4-level subroutine nesting

(including interrupt).

y 4 event-driven interrupts, 2 external and 2

internal.

y ROM size: 1024x15 bits.
y RAM size: 64x4 bits.
y Input ports: 2 ports/ 8 pins (S and M).
y Output port: 1 port/ 4 pins (P).
y Pseudo serial output port (P).
y Input/Output ports: 2 ports/ 8 pins

(I/OA and I/OB).

General Description

The APU4003T is an EEPROM-equipped high- performance 4-bit microcomputer.
It contains not only all functions compatible with APU4003T, but also an EEPROM, providing customers such
conveniences as on-board verification,

y Control outputs: ALARM, LIGHT.
y LCD driver outputs

(can drive up to 75 LCD segments).

y PROM option to select 4 LCD drive modes:

static, duplex (1/2 duty 1/2 bias, 1/3 duty 1/2 bias
or 1/3 duty 1/3 bias).

y PROM option permits LCD driver output pins to

be used for DC output ports; up to 25 pins are
available.

y Segment PLA circuit permits any layout on LCD

panel.

y Built-in clock generator (crystal or RC).
y Built-in voltage doubler, halver, tripler.
y Endurance: More then 100 write cycles/word.
y Security bit for read/write protection.

customized code, small quantity sample production, etc.
This chip especially provides a security bit to protect the customer’s code.

Block Diagram

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Preliminary

5(6(7 ,17

1 Ver.0.0

Package Information

APU4003T

Package type 68Pin PLCC

S3S4LIGHT

ALARM

VDD2

VDD

VDD1

GND

VDD3

COM2

COM3

SEG25

SEG24

SEG23

IOA1
IOA2
IOA3
IOA4
IOB1
IOB2
IOB3
IOB4

RESET

INT

P1
P2
P3

P4
M1
M2
M3

10

15

20

25

M4

5

30

TEST A

CUP1

68

APU4003T

35

S2

S1

CUP2

CAP

OSCIN

65

40

SEG1

COM1

OSCOUT

SEG2

SEG3

60

55

50

45

SEG4

SEG5

SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6

Pin/Pad Assignment Unit: Pm

Pin No. Name Pin No. Name Pin No. Name Pin No. Name

1 VSS 18 RESET 35 OSCIN 52 SEG14
2 ------ 19 INT 36 CAP 53 SEG15
3 VDD1 20 P1 37 OSCOUT 54 SEG16
4 VDD 21 P2 38 COM1 55 SEG17
5 VDD2 22 P3 39 SEG1 56 SEG18
6 ALARM 23 P4 40 SEG2 57 SEG19
7 LIGHT24 M1 41SEG358SEG20
8 S4 25 M2 42SEG459SEG21

9 S3 26 M3 43SEG560SEG22
10 IOA1 27 M4 44 SEG6 61 -----­11 IOA2 28 ------ 45 SEG7 62 -----­12 IOA3 29 ------ 46 SEG8 63 SEG23
13 IOA4 30 TESTA 47 SEG9 64 SEG24
14 IOB1 31 CUP1 48 SEG10 65 SEG25
15 IOB2 32 CUP2 49 SEG11 66 COM3
16 IOB3 33 S2 50 SEG12 67 COM2
17 IOB4 34 S1 51 SEG13 68 VDD3

Preliminary

2 Ver.0.0

Pin Name Description

APU4003T

Name Type Description

OSCIN

OSCOUTIO

S1~4 I

M1~4 I

Typical crystal(32.768KHz) is connected across
OSCIN/OSCOUT for oscillation; R/C oscillation mode is also available.
Input ports with chattering eliminator option for CK10 (32ms), CK8 (8ms) &
CK6 (2ms).

P1~4 O Output ports.
IOA1~4 I/O Input/Output ports.
IOB1~4 I/O Input/Output ports.

INT I External interrupt request control input pin.

RESET I System reset pin.

LIGHT O Output only for outputting the signal to drive the transistor for light.

ALARM O Output only for outputting the 4kHz/2kHz/1kHz modulation signal.

Also can be used to output the non-modulation signal.

VDD

VDD1

(+)Power supply pin.

* For Ag version, apply (+) side to VDD & VDD1 together.
VDD2 For other than Ag version, apply (+) side to VDD & VDD2 together.
VDD3 Power supply pin for LCD driver power supply.

VSS (--)Power supply pin.

CUP1~2 O Pins for connecting the voltage step-up (step-down) capacitor.

COM1~3 O Output pins for LCD panel common plate.

SEG1~25 O Output pins for LCD panel segments.

Absolute Maximum Rating Ta = 0 to 70к

Name Symbol Rating Unit

Maximum Supply Voltage

V

V

Maximum Input Voltage V

V

Maximum Output Voltage

V
V

Maximum Operating Temperature t
Maximum Storage Temperature t

SS1/2

SS3

IN1

OUT1

OUT2

OUT3

OPG

STG

-0.3 ~ +5.5 V

-0.3 ~ +8.5 V

-0.3 to VDD+0.3 V

-0.3 to V

-0.3 to V

-0.3 to V

+0.3 V

DD1

+0.3 V

DD2

+0.3 V

DD3

0 to +70

-25 to +125

к
к

Allowable operating conditions Ta = 0 to 70к

Supply Voltage

Supply Voltage

Input sHs Voltage
Input sLs Voltage
Input sHs Voltage
Input sLs Voltage

Operating Freq.

Preliminary

Name Symbol Condition Min. Max. Unit

V

DD1

V

DD2

V

DD3

V

DD1

V

DD2

V

DD3

V

V

V

V

f

OPG1

f

OPG2

f

OPG3

f

OPG4

External Voltage
Mode

Ag & Li Battery
Mode

IH1

All Input Except OSCIN

IL1

IH2

OSCIN at Ext. RC Mode

IL2

Ag Battery Mode 32 32 kHz
Li Battery Mode 32 100 kHz
External Voltage Mode 32 3580 kHz
External RC Mode 32 5000 kHz

2.0 5.5 V

4.0 5.5 V

4.0 8.25 V

1.3 5.5 V

2.6 5.5 V

2.6 8.25 V

0.7V

DDO

00.3V

0.8V

DDO

00.2V

V

DDO

DDO

V

DDO

DDO

V
V
V
V

3 Ver.0.0