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UPD16488AP Datasheet(PDF) 77 Page - NEC

Part # UPD16488AP
Description  1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
PDF  91 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16488AP Datasheet(HTML) 77 Page - NEC

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Data Sheet S15745EJ2V0DS
77
µµµµPD16488A
10. ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings (TA = +25°C, VSS = 0 V)
Parameter
Symbol
Ratings
Unit
Logic system supply voltage
VDD1
−0.3 to +4.0
V
Booster supply voltage
VDD2
−0.3 to +4.0
V
Driver supply voltage
VOUT
−0.3 to +20.0
V
Driver reference supply input voltage
VLCD, VLC1 to VLC4
−0.3 to VOUT+0.3
V
Logic system input voltage
VIN1
−0.3 to VDD1+0.3
V
Logic system output voltage
VOUT1
−0.3 to VDD1+0.3
V
Logic system input/output voltage
VI/O1
−0.3 to VDD1+0.3
V
Driver system input voltage
VIN2
−0.3 to VOUT+0.3
V
Driver system output voltage
VOUT2
−0.3 to VOUT+0.3
V
Operating ambient temperature
TA
−40 to +85
°C
Storage temperature
Tstg
−55 to +125
°C
Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any
parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge
of suffering physical damage, and therefore the product must be used under conditions that ensure
that the absolute maximum ratings are not exceeded.
Recommended Operating Range
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Logic system supply voltage
VDD1
1.7
3.6
V
Booster supply voltage
VDD2 Note1
2.4
3.6
V
Driver system supply voltage
VOUT Note2
5.5
18.0
V
Logic system input voltage
VIN
0VDD1
V
Driver system supply voltage
VLCD, VLC1 to VLC4 Note2
0VOUT
V
Maximum setting for LCD driver voltage
VLCD Note3
VOUT
− 0.5
V
Notes 1. VDD1 must be less than or equal to VDD2
2. This item is the recommended parameter when the LCD has an external driver.
3. This item is the recommended parameter when an on-chip power supply circuit drives the LCD.
Cautions 1. When using an external LCD driver, be sure to maintain these relations:
VSS
<<<< VLC4 <<<< VLC3 <<<< VLC2 <<<< VLC1 <<<< VLCD ≤≤≤≤ VOUT.
2. Maintain the relations shown in 8. POWER SUPPLY SEQUENCE when turning the power ON or OFF.
3. When using an external resister (when not using an on-chip resister for VLCD adjustment), maintain
supply of a voltage between 1.0 V and the VDD1 voltage to the VR and VRS pins.



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