參數(shù)資料
型號: UPD16667N
廠商: NEC Corp.
英文描述: 160-OUTPUT LCD ROW DRIVER
中文描述: 160輸出的液晶顯示器列驅(qū)動
文件頁數(shù): 2/16頁
文件大?。?/td> 155K
代理商: UPD16667N
2
μ
PD16667
BLOCK DIAGRAM
Liquid-crystal drive circuit
Selection control circuit
Bidirectional shift register
Level shifter
X
1
to X
160
V
DD
V
1
V
EE
DIR
V
CC1
V
SS
L1
L2
Column driver interface
/DOFF’
STB
/FRM
Q
1
to Q
80
Remark
/xxx indicates active low signal.
BLOCK FUNCTION
1. Liquid-crystal drive circuit
This circuit selects and outputs the level for liquid-crystal driving.
One of V
DD
, V
EE
, and V
1
is selected by the output of the selection control circuit.
2. Selection control circuit
This circuit creates the signal which will select the level of the output signal, based on the output of the shift
register circuit and the driving level power selection signals L1 and L2
3. Bidirectional shift register circuit
This refers to the 80-bit bidirectional shift register circuit. The DIR signal can be used to switch over the shift
direction.
The data that has been entered from the /FRM pin is shifted by the low drive signal strobe (STB).
4. Level shifter circuit
This circuit transforms the 5-V signals to the high-voltage signals for liquid-crystal driving.
相關(guān)PDF資料
PDF描述
UPD16667N-051 160-OUTPUT LCD ROW DRIVER
UPD16667 160-OUTPUT LCD ROW DRIVER
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