IZ5851V
CMOS 4-BIT SINGLE-CHIP APPLICATION-ORIENTED
MICROCOMPUTER WITH LCD DRIVER
( prototype LC5851N SANYO).
DESCRIPTION
The IZ5851 is a CMOS 4-bit single chip microcomputer that operate on low voltage, very
low current and contain LCD drivers.
It also contain a 4 bit parallel processing ALU, a program memory ROM, data memory
(RAM),input & output port, Timer, many LCD segments outputs,
a prescaler, and a clock generator. A total of 79 instruction, including the operation and
processing instructions executable in 4 bits units, various conditional branch instructions
and LCD drivers data transfer instructions, from an easy- to-use and effective instruction
system.
FEATURES
• Supply voltage
1.5 or 3 V
• ROM
1024 × 15 bit
64 × 4 bit
32.768 kHz
:244µs
(Mask option selectable)
• Current dissipation
•.RAM
5.0 µ A Typ
• Cycle Time
crystal
• Instruction set
• Interrupt function .
.. External source
.. Internal source
(Ag Battery ,32 kHz
crystal oscillation)
25
79 instructions
• Output pins for LCD drive
• Input port pin
2 ports/8 pins
2
2
• Input/Output port pin
• Output port pin
2 ports/8 pins
1 ports/4 pins
2 pins
• Control output terminal
ABSOLUTE MAXIMUM RATINGS (VDD = 0V, Ta=25°C)
Item
Symbol
Condition/Terminal
Rating
Unit
Maximum Supply
Voltage
VSS1
VSS2
Vin1
-4.0
-4.0
Vss1-0.3
V
V
V
Maximum input
Voltage
S1-4,M1-4,I/OA1-4,I/OB1-
4,INT,TESTA,OSCIN,RES,BAK
Operating
Ta
-0 ~ + 55
200
oC
V
Temperature
ESD (HBM)
ALLOWABLE OPERATING CONDITIONS (Ta = 25oC, VDD = 0V)
Item
Symbol
Condition/Terminal
min
max
Unit
Supply Voltage
VSS1
VSS2
Vih
VBAK=Vss1
-1.65
-3.3
-0.2
-1.3
-2.4
0
V
V
V
Input H-level
Voltage
S1-4,M1-4,I/OA1-4,I/OB1-
4,INT
Input L-level
Voltage
Operating
Frequency
Vil
S1-4,M1-4,I/OA1-4,I/OB1-
4,INT
Vss1
32
Vss1+0.2
33
V
fop
kHz
Ta =0 ~ + 55°C
1
