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零件编号 | IZ7066 | ||
描述 | LCD Controller | ||
制造商 | IK Semiconductor | ||
LOGO | |||
1 Page
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
IZ7066
Functional Time Charts of LCD Controller
Functional Time Parameters (VDD = 4.5~5.5 V)
Mode
Parameter
Write mode
Period E
Time of rise/fall pulse E
Duration of pulse E
Pre-setting time R/W and RS versus
Е
Hold time R/W and RS versus Е
Data pre-setting time DB[7..0] versus
Е
Data hold time DB[7..0] versus Е
Period E
Time of rise/fall pulse E
Duration of pulse E
Presetting time R/W and RS versus
Read-out mode Е
Hold time R/W and RS versus Е
Data presetting time DB[7..0] versus
Е
Data hold time DB[7..0] versus Е
Identifi-
cation
tc
tr, tf
tw
tSU1
t
H1
tSU2
tH2
tc
tr, tf
tw
tSU
t
H
tD
tDH
Min.
500
–
230
40
10
80
10
500
–
230
40
10
–
5
Typ.
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Max.
–
20
–
–
Table 4.
Unit of
measu-
rement
– ns
–
–
–
20
–
–
– ns
120
–
Functional time parameters (VDD = 2.7~4.5 V)
Mode
Parameter
Identification Min.
Write mode
Period E
Time of rise/fall pulse E
Duration of pulse E
Presetting time R/W and RS versus
Е
Hold time R/W and RS versus Е
Read mode
Data presetting time DB[7..0] versus
Е
Data hold time DB[7..0] versus Е
Period E
Time of rise/fall pulse E
Duration of pulse E
Presetting time R/W and RS versus
Е
Hold time R/W and RS versus Е
Data presetting time DB[7..0] versus
Е
Data presetting time DB[7..0] versus
Е
tc
tr, tf
tw
tSU1
t
H1
tSU2
tH2
tc
tr, tf
tw
tSU
t
H
tD
tDH
1000
–
450
60
20
195
10
1000
–
450
60
20
–
5
Typ.
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Max.
–
25
–
–
Table 5.
Units of
measu-
rement
– ns
–
–
–
25
–
–
– ns
360
–
2011, April, Ver. 01
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页数 | 13 页 | ||
下载 | [ IZ7066.PDF 数据手册 ] |
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