PCF1174C - NXP

PCF1174C 4-digit static LCD car clock

plastic very small outline package; 40 leads; face down(1) GENERAL DESCRIPTION PCF1174C The PCF1174C 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 static liquid crystal display (LCD). Two external single-pole, single-throw switches will accomplish all time setting functio.

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
• 40-lead plastic SMD, face down (VSO40). ORDERING INFORMATION TYPE NUMBER PCF1174CT PCF1174CU Notes 1. See Fig.1 and Chapter “Package outline” for pin layout and package details. 2. See Chapter “Chip dimensions and bonding pad locations” for pad layout and package details. PACKAGE N.