參數(shù)資料
型號(hào): MC68HC705L16
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁(yè)數(shù): 4/28頁(yè)
文件大小: 139K
代理商: MC68HC705L16
Application Note
AN1763
4
MOTOROLA
Figure 2. LCD 1/1 Duty and 1/1 Bias Timing Diagram,
V
LCD1
= V
DD
, V
LCD2
= V
LCD3
= V
DD
–V
LCD
Figure 3. Waveform Components for Calculating
ON and OFF RMS Voltages
Since static mode has only two voltage levels, the three LCD pins on the
L16 must be connected in a specific manner as shown in
Figure 4
. Here
V
LCD1
is connected to V
DD
, a resistor is connected between V
LCD1
and
V
LCD2
, and V
LCD2
and V
LCD3
are connected directly. A variable resistor
can be connected from V
LCD3
to ground to allow manual contrast
control.
BP0
V
, VLCD1
VLCD2, VLCD3
FRAME
FPX
V
, VLCD1
VLCD2, VLCD3
FPY
V
, VLCD1
VLCD2, VLCD3
BP0–FPX
OFF
+VLCD
0
–VLCD
BP0–FPY
ON
+VLCD
0
–VLCD
0
1
F(t) =
F(t) =
(BP0–FPX)
2
OFF
VLCD
2
FRAME
(BP1–FPX)
2
ON
0
VLCD
2
0
F
2
(t) =
F
2
(t) =
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