st2032a Sitronix Technology Corporation, st2032a Datasheet - Page 51

• Manufacturer Part Number: st2032a
• Description: 8 Bit Microcontroller With 32k Bytes Rom
• Manufacturer: Sitronix Technology Corporation

Reference table for LCD panel’s parameters：
According to your setting of contrast level， mapping to LCD panel’s parameter﹒
Special Notice
Special notice 1
1
2
3
Special Notice 2
1
Ver 2.4
LCD keyboard awaking pulses only can be used under 3.6V
operating voltage.
COMs and SEGs output VDD level while the LCD is turned off.
The ON/OFF key must be connected between GND and
Port-A.
If two keys be pressed at the same time affect LCD display
must be reduced. One resister (47K) should be added between
scan line and keyboard.
Do not use 32768HZ as system clock.
Engineer ____________________
[ST2032] – 48 x 16（ frame rate = 64 Hz.）
(If the LCD keyboard awaking pulse function was turned on)
1(light)
2
3
4
5
6
7
8
9
10
11
12(dark)
Level
Confirmed Item
Contrast
CTR[3:0]
1010
1001
1000
1101
1100
1011
0110
0101
0100
1110
0111
1111
51/54
Manager ____________________
Equivalent
Duty
48.8
41.0
35.3
31.0
27.7
25.0
22.8
20.9
19.3
18.0
16.8
16.0
Bias
Check
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Note
ST2032A
9/13/07