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NXP Semiconductors Electronic Components Datasheet

PCF1174C Datasheet

4-digit static LCD car clock

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INTEGRATED CIRCUITS
DATA SHEET
PCF1174C
4-digit static LCD car clock
Product specification
Supersedes data of September 1993
File under Integrated Circuits, IC16
1997 Apr 16


NXP Semiconductors Electronic Components Datasheet

PCF1174C Datasheet

4-digit static LCD car clock

No Preview Available !

Philips Semiconductors
4-digit static LCD car clock
Product specification
PCF1174C
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).
GENERAL DESCRIPTION
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 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.
ORDERING INFORMATION
TYPE
NUMBER
PCF1174CT
PCF1174CU
NAME
VSO40
PACKAGE
DESCRIPTION
plastic very small outline package; 40 leads; face down(1)
uncased chip in tray(2)
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.
VERSION
SOT158-2
1997 Apr 16
2


Part Number PCF1174C
Description 4-digit static LCD car clock
Maker NXP
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PCF1174C Datasheet PDF






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