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): 87/97頁(yè)
文件大?。?/td> 681K
代理商: HD667B66R
HD66766R Rev. 1.0-1 / September 2002
87
6. This excludes the current flowing through the input/output units. The input level must be fixed high
or low because through current increases if the CMOS input is left floating. Even if the CS pin is low
or high when an access with the interface pin is not performed, current consumption does not change.
7. Applies to the external clock input (figure ).
Figure 67 External Clock Supply
8.
Applies to the internal oscillator operations using external oscillation resistor Rf (figure and table).
9.
Set VCI2 to maintain the relation VCI2 =< VOUT-0.5V.
OSC1
OSC2
Rf
Since the oscillation frequency varies depending on the OSC1 and OSC2 pin
capacitance, the wiring length to these pins should be minimized.
Figure 68 Internal Oscillation
External
Resistance
(Rf)
R-C Oscillation Frequency: fosc
Vcc = 1.8V
Vcc = 2.2 V
Vcc = 2.4 V
Vcc = 3.0 V
Vcc = 3.6 V
75 k
130 k
180 k
200 k
240 k
280 k
360 k
470 k
364
495
559
631
687
263
345
381
421
453
210
270
295
323
344
193
245
266
236
290
307
174
218
256
270
156
194
210
226
238
129
158
170
182
191
102
122
129
137
142
Table 56 External Resistance Value and R-C Oscillation Frequency (Referential Data)
Oscillator
OSC1
Open
OSC2
t
rcp
t
Th
0.7Vcc
0.5Vcc
0.3Vcc
Duty =
Th
100%
2k
fcp
Tl
Th+ Tl
x
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