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PDF IZ7066 Data sheet ( Hoja de datos )
| Número de pieza | IZ7066 | |
| Descripción | LCD Controller | |
| Fabricantes | IK Semiconductor | |
| Logotipo |  |
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TECHNICAL DATA
LCD Controller with Built-in ROM
of Sign Generator
IZ7066
Purpose
• Controller –driver of matrix LCD
• Built-in LCD control (16 lines and 40
columns)
• Symbol format: 5× 7 points + cursor,
5×10 points + cursor
• Compatible with 4 and 8 digit
microprocessors
• Set of ROM symbols of the sign
generator:
format 5×7 points - 192 symbols,
5×10 points - 32 symbols
• ROM of sign generator can be
programmed by the special symbols
• ROM of sign generator can be
programmed by Customer
• Flexible set of commands:
«Clear the screen», «Shift of cursor»,
«Switch on / Switch off screen»,
«Swift of Screen», «Enable / Disable
cursor», «Read-out, write of data»,
«Shift of cursor»
Peculiarities
• Internal memory
- ROM of symbol generator: 8320 bits
- RAM of symbol generator: 512 bits
- RAM of display data: 80×8 bits for 80 digits
• Built-in automatic reset by power supply on
Built-in generator circuit
• Supply voltage: +2.7 ~ 5.5 V
Voltage of LCD driver: 3 ~13 V.
multiplex 1/8: 5×7 points,
1 line multiplex 1/11: 5×10 points,
1 line multiplex 1/16: 5×7 points, 2 lines
• Packageless version
• Pin designation complies with the
microcircuits KS0066, HD44780, SED1278
• Temperature range -30 ~ +85°С
Description
Microcircuit IZ7066 performs the functions of controller and matrix liquid crystal
display driver, displaying the signs and symbols. All functions, which are necessary for
control of the matrix LCD, are realized on the single chip.
Functional Description
Controller of the liquid crystal display IZ7066 can function under control of both the
four digit and eight digit micro-processor. Table 1 lists description of the IZ7066
microcircuit pins, used for connection to the microprocessor.
Microprocessor can control only the command register and data register of the liquid
crystal display of the microcircuit IZ7066. Command register stores the command codes,
such as «Clear Display» and «Shift Cursor or Display» and information about the
addresses of DD RAM and symbol generator RAM (CG RAM). The data from the
microprocessor can be written only into this register. The data register serves for the
temporary data storage or storage of those data, written or read into/from display data
RAM and the symbol generator RAM.
The data, written into the data register from the microprocessor, by means of the
internal operation, are automatically rewritten into DD RAM or CG RAM. The data register
is used also for the data storage, when they are read out from DD RAM or CG RAM.
2011, April, Ver. 01
1 page  
Identification of Contact Pads (continued)
No. of
Contact
Pad
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Identifi-
cation
Purpose
E
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
Permission of write/read-out operation
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
Serves for data exchange between processor and controller
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD lines control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
LCD columns control pin
IZ7066
2011, April, Ver. 01
5 Page 
IZ7066
Electric Parameters (VDD = 2.7~4.5 V)
Parameter
Description
Unit of Measurement
Letter
Identifi
cation
Description of
Pins
High level output
voltage, V
Low level output
voltage, V
Output Voltage Drop at
Formers, V
High level input current,
uА
Low level input current,
uА
Low level input current,
uА
Consumption current,
mА
Frequency of internal
generator, kHz
Voh1
Voh2
Vol1
Vol2
Vd
Iih
IIL1
IIL2
IDD
Fec
DB0–DB7
CLK1, CLK2, M,
D
DB0–DB7
CLK1, CLK2, M,
D
COM1–COM16,
SEG1–SEG40
E
E
RS,R/W
DB0–DB7
Measure-ment
Mode
Ioh= –0.1 mА
Ioh= –40uА
Iol= 0.1 mА
Iol=40 uА
Io= 0.1mА
Vin= VDD
VDD =3V
Vin=0
VDD =3V
Vin=0V
VDD =3V
Fext=270 kHz
VDD =3V
Rf=75kOhm±2%,
VDD =3V
Table 8.
Norm
Re-
marks
Not less
0.75 VDD
Not
more
-
0.8 VDD
-
- 0.2 VDD
- 0.2 VDD
1
- 1.0
- │–1.0│
│–10│ │–120│
0.3
190 350
(1)
1) Parameter Vd is controlled by means of measuring the output voltage of the formers under the preset
load, Vi – commutated levels V1, V2, V3, V4: V5≤V4≤V3≤V2≤V1≤ Udd
For levels V1, V2 norm rated value - “not less”,
For levels V3, V4 norm rated value - “not more”.
2011, April, Ver. 01
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet IZ7066.PDF ] | |
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