PCF1179CT中文资料4-digit duplex LCD car clock数据手册恩XP规格书

描述 Description

The PCF1175C is a single chip, 4.19 MHz CMOS car clock circuit providing hours, minutes and seconds functions. It is designed to drive a 4-digit duplex liquid crystal display (LCD).
Two external single-pole, single-throw switches will accomplish all time setting functions. Time calibration and voltage regulator are electrically programmable via an on-chip EEPROM. The circuit is battery-operated via an internal voltage regulator and an external resistor.

特性 Features

Internal voltage regulator is electrically programmable for various LCD voltages
Time calibration is electrically programmable (no trimming capacitor required)
LCD voltage adjusts with temperature for good contrast
4.19 MHz oscillator
12-hour or 24-hour mode
Operating ambient temperature: -40 to +85 °C
28-lead plastic SMD (SO28)
1 Hz set mode.

应用 Application

Car radio
Car audio systems.