參數(shù)資料
型號(hào): HD667B66R
廠商: Hitachi,Ltd.
英文描述: 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
中文描述: 132 × 176點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器的65K色
文件頁(yè)數(shù): 11/97頁(yè)
文件大?。?/td> 681K
代理商: HD667B66R
HD66766R Rev. 1.0-1 / September 2002
11
Table 4 cont.
Signals
Number of
Pins
I/O
Connected to
Functions
DB2-DB15
14
I/O
MPU
Serves as a 16-bit bi-directional data bus.
For an 8-bit bus interface, data transfer uses DB15-DB8; fix
unused DB7-DB0 to the Vcc or GND level.
For a synchronous clock interface or unused pins, fixed to
the Vcc or GND level.
Output signals for segment drive. In the display-off period
(D1–0 = 00, 01) or standby mode (STB = 1), all pins output
GND level.
The SGS bit can change the shift direction of the segment
signal. For example, if SGS = 0, RAM address 0000 is
output from SEG1. If SGS = 1, it is output from SEG396.
SEG1, SEG4, SEG7, ... display red (R), SEG2, SEG5,
SEG8, ... display green (G), and SEG3, SEG6, SEG9, ...
display blue (B) (SGS = 0).
Output signals for common drive. In the display-off period
(D1–0 = 00, 01) sleep mode (SLP = 1) or standby mode
(STB = 1), all pins output GND level.
The CMS bit can change the shift direction of the common
signal. For example, if CMS = 0, driver outputs from
COM1 to COM176. If CMS = 1, driver outputs COM176 to
COM1.
Note that start position of the common driver output is
changed by screen diving position function.
Selection level for the common signal. When internal power
supply is used, connect the capacitors for stabilization to
VCH AND VCL, and shot key barrier diode to VCL.
When internal power supply is not used, supply external
voltage.
Non-selection level for the common signal. When internal
operational amplifier is used, it is output of the internal
operational amplifier and connect the capacitors for
stabilization. When internal operational amplifier is not
used, supply external voltage.
Selection level for the segment signal. When internal
operational amplifier is used, it is output of the internal
operational amplifier and connect the capacitors for
stabilization. When internal operational amplifier is not
used, supply external voltage.
Outputs a regulated voltage derived from Vcc. Connect a
capacitor for stabilization. When this pin is not used,
leave it open.
SEG1–
SEG396
396
O
LCD
COM1–
COM176
176
O
LCD
VCH, VCL
2
Capacitor for
stabilization,
shot key barrier
diode or external
power supply
Capacitor for
stabilization or
external power
supply
VM
1
VSH
1
Capacitor for
stabilization or
external power
supply
VciOUT
1
Vci1 and
capacitor for
stabilization or
open
VciOUT or power
supply
Vci1
1
Voltage-input pin for step-up circuit 1. When the Vci
adjuster is used, input the power supply from VciOUT.
When not used, input the external power supply.
Connect capacitor for stabilization. When the internal
power supply circuit is not used, leave this pin open.
Vci2
1
Capacitor for
stabilization or
open
Step-up
capacitance
VOUT
1
A voltage that doubles or triples the voltage between
Vci1 and GND is output here. The step-up factor can
be set in an internal register.
When step-up circuit is used, connect a step-up capacitor.
C11+, C11-
2
Step-up
capacitance
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