HD66789 Datasheet, PDF (151/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Preliminary
T.B.D. ^OSC1
The oscillation frequency may vary
Rf
depending on the capacitors for OSC1, OSC2 pins.
OSC2
Place OSC1 and OSC2 close to each other.
External Resistance Value and R-C Oscillation Frequency (Referential Data)
External
Resistance
(Rf)
110 kΩ
150 kΩ
180 kΩ
200 kΩ
240 kΩ
270 kΩ
300 kΩ
390 kΩ
430 kΩ
R-C Oscillation Frequency: fosc
Vcc = 1.8
V
Vcc = 2 V
Vcc = 2.4 V Vcc = 3 V
299
333
372
401
234
258
284
305
202
222
243
258
T.B.D. ¹⁸⁶
203
222
235
160
173
188
198
145
157
169
177
132
143
153
161
106
113
121
126
97
104
110
115
Vcc = 3.3 V
411
311
263
240
202
181
163
128
116
11. Applies to the internal oscillator operations using external oscillation resistor Rf (figure and table).
Reference data
70
Vcc =3V, VLCD = 5.5V, VDH = 5.0V,
60
50
40
30
20
R-C Oscillation; fosc = 270kHz (240line),
T.B.D. Ta = 25 Centigrade, REV = "0", SAP ="001",
VRN4-0 = "0", VRP4-0 = "0",
PKP52-00 = "0", PRP12-00 ="0",
PKN52-00 = "0", PRN12-00 ="0",
All pins chnge at the same time from same grayscale.
10
The time till output level reaches +/-35mV when VCOM polarity changes.
Load resistance R = 10kΩ/pin
10
20
30
Load CapacityC(pF)
Rev.0.12, May 09 2003, page 151 of 156