CM2916
LCD Driver with Key Scan(4*8)
A.C. Characteristics
（
Condition : Ta= 25
±
3
℃，
RH
≦
65 %
，
VDD =
＋
5V
，
VSS=0V
）
Item
Symbol
Condition
min.
System clock
f
SYS
RC oscillator @5v, external 5%
180
resistor and 15% capacitor
LCD frame frequency F
LCD1
1/3 duty
60
LCD frame frequency F
LCD2
1/4 duty
45
LCD frame frequency F
LCD
1/5 duty
36
F
CK
串行
clock
＠5V，Clock
duty 50%
CKWB/CKRB
T
SYNC
@5V
串行同步控制
CKWB/CKRB
typ.
256
85
64
51
1
500
Max.
332
110
83
66
unit
KHz
HZ
HZ
HZ
MHz
ns
Note：如果發射器是用 resonator
的話，
CM2916在解碼的設計上，可以容許有 40％
的
RC
oscillator
的頻率誤差。
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 6 of 22
Rev 1.0 Oct. 5, 2004
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
