CMOS DOT MATRIX LCD DRIVER
IZD1520
FEATURES
• Many command set
• CMOS LSI chips
• Total 80 (segment+common) drive sets
• Connection with CPU
• Low power consumption - 30µW maximum at 2kHz
external clock
Can be directly coupled with 80-port or 68-port system
• Available in chip form or in 100-pin plastic QFP
• Pin-to-Pin Replacement for SED1520 Series
• Power supply VDD - VSS : 2.4 to -7.0V
VDD - V5 : 3.5 to -13.0V
DESCRIPTION
The IZD1520 family of dot matrix LCD (Liquid Crystal Display) drivers are designed for the display of characters and graphics.
The drivers generate LCD drive signals derived from bit mapped data stored in an internal RAM.
The IZD1520 family drivers incorporate innovative circuit design strategies to achieve very low power dissipation at a wide range of operating voltages.
These features give the designer a flexible means of implementing small to medium size LCD displays for compact, low power systems.
The IZD1520 which is able to drive two lines of twelve characters each.
The IZD1521 which is able to drive 80 segments for extension.
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Value
Unit
Supply Voltage (1)
Supply Voltage (2)
Supply Voltage (3)
Input Voltage
VSS
- 8.0 ~ 0.3
- 16.5 ~ 0.3
V5 ~ 0.3
V
V
V5
V1, V2, V3, V4
V
VI
VO
PD
VSS - 0.3 ~ 0.3
VSS - 0.3 ~ 0.3
250
V
Output Voltage
V
Power Dissipation
mW
oC
oC
oC
Operating Temperature
Ta
- 10 ~ + 75
- 65 ~ + 150
260
Storage Temperature
Tstg
Tsol
Soldering temperature time (10 sec max)
Notes:
1.
2.
All voltages are specified relative to VDD = 0V.
The following relation must be always hold
VDD ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥V5.
3.
Exceeding the absolute maximum ratings may cause permanent damage to the device. Functional operating under these
conditions is not implied.
LINE-UP
Product
Name
Clock Frequency
Number of
SEGMENT
Drivers
Number of
COMMON
Drivers
Applicable Driver
Duty
On-chip
External
IZD1520OA
IZD1521OA
IZD1520AA
IZD1521AA
18kHz
18kHz
18kHz
2kHz
IZD1520OA , IZD1521OA
61
80
61
80
16
0
1/16, 1/32
1/8 ~ 1/32
1/16, 1/32
1/8 ~ 1/32
-
-
-
IZD1520OA
IZD1520AA , IZD1521AA
IZD1520AA
16
0
2kHz
1