PCF1175CT/F2,112 NXP

INTEGRATED CIRCUITS DATA SHEET PCF1175C 4-digit duplex LCD car clock 1997 Apr 16 Product specication Supersedes data of September 1993 File under Integrated Circuits, IC16Philips Semiconductors Product specication 4-digit duplex LCD car clock PCF1175C FEATURES GENERAL DESCRIPTION Internal voltage regulator is electrically programmable The PCF1175C is a single chip, 4.19 MHz CMOS car clock for various LCD voltages circuit providing hours, minutes and seconds functions. It is designed to drive a 4-digit duplex liquid crystal display Time calibration is electrically programmable (LCD). (no trimming capacitor required) Two external single-pole, single-throw switches will LCD voltage adjusts with temperature for good contrast accomplish all time setting functions. Time calibration and 4.19 MHz oscillator voltage regulator are electrically programmable via an 12-hour or 24-hour mode on-chip EEPROM. The circuit is battery-operated via an Operating ambient temperature: - 40 to +85 C internal voltage regulator and an external resistor. 28-lead plastic SMD (SO28) 1 Hz set mode. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME DESCRIPTION VERSION (1) PCF1175CT SO28 plastic small outline package 28 leads body width 7.5 mm SOT136-1 (2) PCF1175CU - uncased chip in tray - (2) PCF1175CU/10 - chip-on-lm frame carrier (FFC) - 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. 1997 Apr 16 2