hd66789 Renesas Electronics Corporation., hd66789 Datasheet - Page 152
hd66789
Manufacturer Part Number
hd66789
Description
528-channel, One-chip Driver For Amorphous Tft Panels With 262,144-color Display Ram, Power Supply Circuit, And Gate Circuit
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66789.pdf
(156 pages)
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HD66789
Load circuits for measuring AC characteristics
80-system Bus Operation
Note 1) PWLW and PWLR is specified in the overlapped period when CS* is low and WR* or RD* is low.
Note 2) Parallel data transfer is enabled on the DB15-8 pins when the 8-bit bus interface is used. Fix the
Rev.0.12, May 09 2003, page 152 of 156
DB7-0 pins to Vcc or GND.
DB0
to DB1 5
DB0
to DB1 5
AC characteristic measuring load circuit
RS
CS*
WR
RD*
*
Test Point
Data bus : DB17-DB0, PD17-0
T.B.D.
T.B.D.
50pF
VIH
VIL
tWRr
tAS
VIL
LCD driver output characteristic measuring load circuit
VIL
tDDR
Note 1)
tCYCW, tCYCR
PWLW, PWLR
LCD output : S1- S528
VIH
VIL
Test Point
VOH1
VOL1
tDSW
VIL
Wrire data
Read data
VIH
Resistance R
VIH
10kΩ
Lord
tWRf
tDHR
tHWR
tAH
PWHW, PWHR
VOH1
VOL1
VIH
VIL
VIH
VIL
Lord
Capacity C
20pF
Preliminary
VIH
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