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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF1178CU/5 датащи(PDF) 5 Page - NXP Semiconductors |
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PCF1178CU/5 датащи(HTML) 5 Page - NXP Semiconductors |
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5 / 20 page  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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