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PCF1178CU/5 Datasheet(PDF) 5 Page - NXP Semiconductors

Part # PCF1178CU/5
Description  4-digit duplex LCD car clock
PDF  20 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF1178CU/5 Datasheet(HTML) 5 Page - NXP Semiconductors

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1997 Apr 16
5
Philips Semiconductors
Product specification
4-digit duplex LCD car clock
PCF1178C
LCD voltage (see Fig.5)
The adjustable voltage regulator controls the supply
voltage (see Section “LCD voltage programming”) in
relation to temperature for good contrast, for example
when VDD = 4.5 V at +25 °C, then:
VDD = 3 to 4 V at +85 °C.
VDD =5to6Vat −40 °C.
Fig.5 Regulated voltage as a function of temperature (typical).
(1) Programmed to 4.0 V at 25
°C (value within the specified operating range).
(2) Programmed to 4.5 V at 25
°C (value within the specified operating range).
(3) Programmed to 5.0 V at 25
°C (value within the specified operating range).
40
0
40
120
−8
−6
−2
0
−4
MSA995
80
T ( C)
o
V SS
(V)
(2)
(1)
(3)



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