參數(shù)資料
型號： PCF8578
廠商： NXP Semiconductors N.V.
英文描述： LCD row/column driver for dot matrix graphic displays
中文描述： 液晶行/列驅(qū)動點陣圖形顯示
文件頁數(shù)： 21/44頁
文件大?。?/td> 323K
代理商： PCF8578
1998 Sep 08
21
Philips Semiconductors
Product specification
LCD row/column driver for dot matrix
graphic displays
PCF8578
8.1
Command decoder
The command decoder identifies command bytes that
arrive on the I
2
C-bus. The most-significant bit of a
command is the continuation bit C (see Fig.14). When this
bit is set, it indicates that the next byte to be transferred will
also be a command. If the bit is reset, it indicates the
conclusion of the command transfer. Further bytes will be
regarded as display data. Commands are transferred in
WRITE mode only.
The five commands available to the PCF8578 are defined
in Tables 5 and 6.
Fig.14 General information of command byte.
MSA833
REST OF OPCODE
C
MSB
LSB
C = 0; last command.
C = 1; commands continue.
Table 5
Summary of commands
Note
1.
C = command continuation bit. D = may be a logic 1 or 0.
COMMAND
OPCODE
(1)
DESCRIPTION
SET MODE
SET START BANK
DEVICE SELECT
RAM ACCESS
C
C
C
C
1
1
1
1
0
1
1
1
D
1
0
1
D
1
D
D
D
1
D
D
D
D
D
D
D
D
D
D
multiplex rate, display status, system type
defines bank at top of LCD
defines device subaddress
graphic mode, bank select (D D D D
≥
12 is not
allowed; see SET START BANK opcode)
0 to 39
LOAD X-ADDRESS
C
0
D
D
D
D
D
D
相關(guān)PDF資料
PDF描述
PCF8578H LCD row/column driver for dot matrix graphic displays
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF8578_03 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD row/column driver for dot matrix graphic displays
PCF8578H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD row/column driver for dot matrix graphic displays
PCF8578H/1 功能描述:LCD 驅(qū)動器 LCD DRVR DOT MATRIX RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
PCF8578H/1,118 功能描述:LCD 驅(qū)動器 DOT MATRIX LCD DRIV (R/COLM) RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
PCF8578H/1,157 功能描述:LCD 驅(qū)動器 LCD DRVR DOT MATRIX RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
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