參數(shù)資料
型號(hào)： HCD66717A03BP
廠商： Hitachi,Ltd.
元件分類： 晶體
英文描述： (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
中文描述： （低功耗點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器）
文件頁(yè)數(shù)： 9/90頁(yè)
文件大?。?/td> 716K
代理商： HCD66717A03BP
HD66717
460
Pin Functions
Table 1
Pin Functional Description
Signal
Number
of Pins
I/O
Device
Interfaced with Function
IM1, IM0
2
I
V
CC
or GND
Selects interface mode with the MPU:
IM1, IM0 = GND, GND: I
IM1, IM0 = GND, V
CC
: Clock-synchronized serial mode
(receive)
IM1, IM0 = V
CC
, GND: 8-bit bus mode
IM1, IM0 = V
CC
, V
CC
: 4-bit bus mode
Selects the HD66717 during clock-synchronized serial
mode:
Low: HD66717 is selected and can be accessed
High: HD66717 is not selected and cannot be accessed
Selects the registers during 4- or 8-bit bus mode:
Low: Instruction register (write); busy flag and address
counter (read)
High: Data registers (write/read)
2
C bus mode (receive)
RS/CS*
1
I
MPU
RW/SDA
1
I/O, I MPU
Inputs serial (receive) data and outputs the acknowledge
bit during I
clock-synchronous serial mode; selects read/write during 4-
or 8-bit bus mode:
Low: Write
High: Read
2
C bus mode; Inputs serial (receive) data during
E/SCL
1
I
MPU
Inputs serial clock pulses during I
synchronized serial mode; enables data read/write during
4- or 8-bit bus mode
2
C bus mode and clock-
DB7,
DB6,
DB5/ID5
DB4/ID4
4
I, I/O MPU
Inputs the HD66717's identification code (ID5, ID4) during
I
fixed to high or low (DB7 and DB6…).
Four high-order bidirectional data bus pins for tristate data
transfer during 8-bit bus mode.
Bidirectional data bus pins during 4-bit bus mode.
2
C bus mode and clock-synchronized serial mode;must be
DB3/ID3,
DB2/ID2,
DB1/ID1,
DB0/ID0,
4
I, I/O MPU
Inputs the HD66717's identification code (ID3 to ID0)
during I
must be fixed to high or low.
Four low-order bidirectional data bus pins for tristate data
transfer during 8-bit bus mode.
Must be left disconnected during 4-bit bus mode since they
are not used.
2
C bus mode and clock-synchronized serial mode;
COMS1,
COMS2
2
O
LCD
Common output signals for segment icon display.
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