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PCF1179C 数据表(PDF) 8 Page - NXP Semiconductors |
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PCF1179C 数据表(HTML) 8 Page - NXP Semiconductors |
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8 / 20 page ![]() 1997 Apr 16 8 Philips Semiconductors Product specification 4-digit duplex LCD car clock PCF1179C Fig.6 Programming diagram. MSB232 PCF1179C SEL V DD OSC OUT OSC IN VSS 12 V R 6.8 k Ω C 47 µF ext VSS DATA VPP pulse generators 0 V t , t = 4 to 6 ms W E t = 1 µs H t = 1 to 1.5 µs L t E t H t L t H t L VDD t H t W n clears cells incrementing counters store pulse 5 V VDD DATA VPP VDD 5 V VDD 50 µs 50 µs 50 µs 50 µs |
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