4-Bit Micro-Controller With EPROM, 1K Word
Features
Very low current dissipation.
Wide operating voltage range.
Supports both Ag and Li batteries.
Powerful instruction set.
4-level subroutine nesting
(including interrupt).
4 event-driven interrupts, 2 external and 2
internal.
ROM size: 1024x15 bits.
RAM size: 64x4 bits.
Input ports: 2 ports/ 8 pins (S and M).
Output port: 1 port/ 4 pins (P).
Pseudo serial output port (P).
Input/Output ports: 2 ports/ 8 pins
(I/OA and I/OB).
Control outputs: ALARM, LIGHT.
LCD driver outputs
(can drive up to 75 LCD segments).
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).
PROM option permits LCD driver output pins to
be used for DC output ports; up to 25 pins are
available.
Segment PLA circuit permits any layout on LCD
panel.
Built-in clock generator (crystal or RC).
Built-in voltage doubler, halver, tripler.
Endurance: More then 100 write cycles/word.
Security bit for read/write protection.
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,
customized code, small quantity sample production, etc.
This chip especially provides a security bit to protect the customer's code.
Block Diagram
Preliminary
1 Ver. 0.0
APU4003T
Pin Name Description
Name
Type
Description
OSCIN
OSCOUT
I
O
Typical crystal(32.768KHz) is connected across
OSCIN/OSCOUT for oscillation; R/C oscillation mode is also available.
S1~4
I
M1~4
I
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 70
Name
Symbol
Rating
Unit
V
SS1/2
-0.3 ~ +5.5
V
Maximum Supply Voltage
V
SS3
-0.3 ~ +8.5
V
Maximum Input Voltage
V
IN1
-0.3 to V
DD
+0.3
V
V
OUT1
-0.3 to V
DD1
+0.3
V
V
OUT2
-0.3 to V
DD2
+0.3
V
Maximum Output Voltage
V
OUT3
-0.3 to V
DD3
+0.3
V
Maximum Operating Temperature
t
OPG
0 to +70
Maximum Storage Temperature
t
STG
-25 to +125
Allowable operating conditions
Ta = 0 to 70
Name
Symbol
Condition
Min.
Max.
Unit
V
DD1
2.0
5.5
V
V
DD2
4.0
5.5
V
Supply Voltage
V
DD3
External Voltage
Mode
4.0
8.25
V
V
DD1
1.3
5.5
V
V
DD2
2.6
5.5
V
Supply Voltage
V
DD3
Ag & Li Battery
Mode
2.6
8.25
V
Input H Voltage
V
IH1
0.7V
DDO
V
DDO
V
Input L Voltage
V
IL1
All Input Except OSCIN
0
0.3V
DDO
V
Input H Voltage
V
IH2
0.8V
DDO
V
DDO
V
Input L Voltage
V
IL2
OSCIN at Ext. RC Mode
0
0.2V
DDO
V
f
OPG1
Ag Battery Mode
32
32
kHz
f
OPG2
Li Battery Mode
32
100
kHz
f
OPG3
External Voltage Mode
32
3580
kHz
Operating Freq.
f
OPG4
External RC Mode
32
5000
kHz
Preliminary
3 Ver. 0.0
APU4003T
Name
Symbol
Condition
For
Min.
Typ.
Max.
Unit
V
OH2e
I
OH
=-10 A,#1, #2
2.5
V
Output H Voltage
V
OH3e
I
OH
=-10 A, #3
4.3
V
V
OL2e
I
OL
=10 A, #1, #2
0.2
V
Output L Voltage
V
OL3e
I
OL
=10 A, #3
COM-n
0.2
V
Duplex (1/2 bias, 1/2 duty) display mode
V
OH12f
I
OH
=-1 A, #1, #2
2.4
V
Output H Voltage
V
OH3f
I
OH
=-1 A, #3
4.3
V
V
OL12f
I
OL
=1 A, #1, #2
0.2
V
Output L Voltage
V
OL3f
I
OL
=1 A, #3
SEG-n
0.2
V
V
OH12g
I
OH
=-10 A, #1, #2
2.4
V
Output H Voltage
V
OH3g
I
OH
=-10 A, #3
4.3
V
V
OM12g
I
OI/H
= 10 A,#1,
#2
1.1
1.5
V
Output M Voltage
V
OM3g
I
OI/H
= 10 A, #3
2.05
2.45
V
V
OL12g
I
OL
=10 A, #1
0.2
V
Output L Voltage
V
OL3g
I
OL
=10 A, #3
COM-n
0.2
V
1/2 bias, 1/3duty display mode
V
OH12h
I
OH
=-1 A, #1, #2
2.4
V
Output H Voltage
V
OH3h
I
OH
=-1 A, #3
4.3
V
V
OL12h
I
OL
=1 A, #1, #2
0.2
V
Output L Voltage
V
OL3h
I
OL
=1 A, #3
SEG-n
0.2
V
V
OH12i
I
OH
=-10 A, #1, #2
2.4
V
Output H Voltage
V
OH3i
I
OH
=-10 A, #3
4.3
V
V
OM12i
I
OI/H
= 10 A,#1,
#2
1.1
1.5
V
Output M Voltage
V
OM3i
I
OI/H
= 10 A, #3
2.05
2.45
V
V
OL12i
I
OL
=10 A, #1, #2
0.2
V
Output L Voltage
V
OL3i
I
OL
=10 A, #3
COM-n
0.2
V
1/3bias, 1/3duty display mode
V
OH12j
I
OH
=-1 A, #1, #2
3.85
V
Output H Voltage
V
OH3j
I
OH
=-1 A, #3
6.55
V
V
OM12j
I
OI/H
= 1 A,#1, #2
2.9
2.4
V
Output M1 Voltage
V
OM13j
I
OI/H
= 1 A,#1, #2
4.7
4.3
V
V
OM22j
I
OI/H
= 1 A,#1, #2
1.1
1.5
V
Output M2 Voltage
V
OM23j
I
OI/H
= 1 A,#1, #2
2.05
2.45
V
V
OL2j
I
OL
=1 A, #2
0.2
V
Output L Voltage
V
OL3j
I
OL
=1 A, #3
SEG-n
0.2
V
V
OH2k
I
OH
=-10 A, #2
3.85
V
Output H Voltage
V
OH3k
I
OH
=-10 A, #3
6.55
V
V
OM12k
I
OI/H
= 10 A,#1,
#2
2.9
2.4
V
Output M1 Voltage
V
OM13k
I
OI/H
= 10 A, #3
4.7
4.3
V
V
OM22k
I
OI/H
= 10 A,#1,
#2
1.1
1.5
V
Output M2 Voltage
V
OM23k
I
OI/H
= 10 A, #3
2.05
2.45
V
V
OL2k
I
OL
=10 A, #2
0.2
V
Output L Voltage
V
OL3k
I
OL
=10 A, #3
COM-n
0.2
V
Note: #1: V
SS1
= -1.2V (Ag), #2: V
SS2
= -2.4V (Li), #3: V
SS2
= -4V (ExtV).
Preliminary
5 Ver. 0.0
APU4003T
PDF 
ZIP
