PCF1171C

INTEGRATED CIRCUITS DATA SHEET PCF1171C 4-digit LCD car clock Product specification Supersedes data of September 1993 File under Integrated Circuits, IC16 1997 Apr 16 Philips Semiconductors Product specification 4-digit LCD car clock FEATURES Driving standard 31⁄ 2 PCF1171C GENERAL DESCRIPTION or a 4-digit LCD Internal voltage regulator for 5 V LCD Option for external stabilized voltage supply 4.19 MHz oscillator Integrated oscillator output capacitor and polarization resistor Operating ambient temperature: −40 to +85 °C 40-lead plastic SMD, face down (VSO40). ORDERING INFORMATION TYPE NUMBER PCF1171CT PCF1171CU Notes The PCF1171C is a single chip, 4.19 MHz CMOS car clock circuit indicating hours and minutes. It is designed to drive a 31⁄2 or 4-digit liquid crystal display (LCD). Two external single-pole, single-throw switches will accomplish all time setting functions. A bonding option allows the selection of 12-hour or 24-hour display mode. The circuit is battery-operated via an internal 5 V voltage regulator or by an external stabilized voltage supply. PACKAGE NAME VSO40 − uncased chip in tray(2) DESCRIPTION plastic very small outline package; 40 leads; face down(1) VERSION SOT158-2 − 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. 1997 Apr 16 2 Philips Semiconductors Product specification 4-digit LCD car clock PINNING SYM...