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Part: IZD1520AA
Category:
Optoelectronics
-> Drivers/Controllers
-> LCDs
-> LCD Controllers and Drivers
Description:
Company: IK Semiconductor
Datasheet: Download IZD1520AA datasheet File size : 522 kB
Request For quote: Find where to buy IZD1520AA
Datasheet text preview:
CMOS DOT MATRIX LCD DRIVER
FEATURES
· CMOS LSI chips · Connection with CPU 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 · Many command set · Total 80 (segment+common) drive sets
IZD1520
· Low power consumption - 30µW maximum at 2kHz external clock · 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 Supply Voltage (1) Supply Voltage (2) Supply Voltage (3) Input Voltage Output Voltage Power Dissipation Operating Temperature Storage Temperature Soldering temperature time (10 sec max) Notes: 1. 2. 3. Symbol VSS V5 V1, V2, V3, V4 VI VO PD Ta Tstg Tsol Value - 8.0 ~ 0.3 - 16.5 ~ 0.3 V5 ~ 0.3 VSS - 0.3 ~ 0.3 VSS - 0.3 ~ 0.3 250 - 10 ~ + 75 - 65 ~ + 150 260 Unit V V V V V mW
o o o
C C C
All voltages are specified relative to VDD = 0V. The following relation must be always hold VDD V1 V2 V3 V4 V5. Exceeding the absolute maximum ratings may cause permanent damage to the device. Functional operating under these conditions is not implied.
LINE-UP
Product Name On-chip IZD1520OA IZD1521OA IZD1520AA IZD1521AA 18kHz External 18kHz 18kHz 2kHz 2kHz IZD1520OA , IZD1521OA IZD1520OA IZD1520AA , IZD1521AA IZD1520AA 61 80 61 80 16 0 16 0 1/16, 1/32 1/8 ~ 1/32 1/16, 1/32 1/8 ~ 1/32 Clock Frequency Applicable Driver Number of SEGMENT Drivers Number of COMMON Drivers Duty
1
CMOS DOT MATRIX LCD DRIVER
BLOCK DIAGRAM IZD1520AA
IZD1520
V 1 , 2 , 3, 4 , 5 VVVV
15
to C O M
0
to S E G
60
V DD I/ O b u ffe r S ta tu s
RES
0
COM
L C D d riv e circu i t
C o m m o n cou n te r
D i p l y d a ta latch ci cu it sa r
D i p l y start l n e regi te r sa i s
L i e ad d re ss d e co d e r n
L i e cou n te r n
D i p l y d a ta R A M sa (2560-b i ) t
C o lu m n add re ss d e co d e r
CL
C o lu m n add re ss cou n te r
FR
C o lu m n add re ss regi te r s
C om m an d d e cod e r
M P U i te rfa ce n
RD, W R (E , W ) R M /S
D 0 -D 7
A 0, S C
B us h o ld e r
L o w -a d d re ss re g i te r s
D i pl y sa ti in g m g e n e ra to r ci cu it r
SEG
V SS
2
CMOS DOT MATRIX LCD DRIVER
BLOCK DIAGRAM IZD1520OA
IZD1520
V 1 , 2 , 3, 4 , 5 VVVV
15
to C O M
0
to S E G
60
V DD I/ O b u ffe r S ta tu s
RES
0
COM
L C D d riv e circu i t
C o m m o n cou n te r
D i p l y d a ta latch ci cu it sa r
D i p l y start l n e regi te r sa i s
L i e ad d re ss d e co d e r n
L i e cou n te r n
D i p l y d a ta R A M sa (2560-b i ) t
C o lu m n add re ss d e co d e r
O SC 2
C o lu m n add re ss cou n te r
FR
C o lu m n add re ss regi te r s
C om m an d d e cod e r
M P U i te rfa ce n
RD, W R (E , W ) R M /S
D 0 -D 7
O SC 1
B us h o ld e r
L o w -a d d re ss re g i te r s
D i pl y sa ti in g m g e n e ra to r ci cu it r
SEG
V SS
3
Others parts begin by iz
IZ-1
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