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PCF1179 датащи(PDF) 5 Page - NXP Semiconductors

номер детали PCF1179
подробное описание детали  4-digit duplex LCD car clock
PDF  20 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF1179 датащи(HTML) 5 Page - NXP Semiconductors

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1997 Apr 16
5
Philips Semiconductors
Product specification
4-digit duplex LCD car clock
PCF1179C
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 = 5 to 6 V at −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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