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
Pin Name Description
Name
Type
Description
OSCIN
I Typical crystal(32.768KHz) is connected across
OSCOUT
O OSCIN/OSCOUT for oscillation; R/C oscillation mode is also available.
S1~4
I Input ports with chattering eliminator option for CK10 (32ms), CK8 (8ms) &
M1~4
I 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.
(+)Power supply pin.
VDD
* For Ag version, apply (+) side to VDD & VDD1 together.
VDD1
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
Name
Maximum Supply Voltage
Maximum Input Voltage
Maximum Output Voltage
Maximum Operating Temperature
Maximum Storage Temperature
Symbol
V
SS1/2
V
SS3
V
IN1
V
OUT1
V
OUT2
V
OUT3
t
OPG
t
STG
Ta = 0 to 70
Rating
-0.3 ~ +5.5
-0.3 ~ +8.5
-0.3 to V
DD
+0.3
-0.3 to V
DD1
+0.3
-0.3 to V
DD2
+0.3
-0.3 to V
DD3
+0.3
0 to +70
-25 to +125
Ta = 0 to 70
Max.
5.5
5.5
8.25
5.5
5.5
8.25
V
DDO
0.3V
DDO
V
DDO
0.2V
DDO
32
100
3580
5000
Unit
V
V
V
V
V
V
Allowable operating conditions
Name
Supply Voltage
Supply Voltage
Input
Input
Input
Input
H
L
H
L
Voltage
Voltage
Voltage
Voltage
Symbol
V
DD1
V
DD2
V
DD3
V
DD1
V
DD2
V
DD3
V
IH1
V
IL1
V
IH2
V
IL2
f
OPG1
f
OPG2
f
OPG3
f
OPG4
Condition
External Voltage
Mode
Ag & Li Battery
Mode
All Input Except OSCIN
OSCIN at Ext. RC Mode
Ag Battery Mode
Li Battery Mode
External Voltage Mode
External RC Mode
Min.
2.0
4.0
4.0
1.3
2.6
2.6
0.7V
DDO
0
0.8V
DDO
0
32
32
32
32
Operating Freq.
Unit
V
V
V
V
V
V
V
V
V
V
kHz
kHz
kHz
kHz
Preliminary
3
Ver. 0.0
京公网安备 11010802033920号
EEWORLD
