PCF1178CT NXP Semiconductors, PCF1178CT Datasheet - Page 5

• Manufacturer Part Number: PCF1178CT
• Manufacturer: NXP Semiconductors

Specifications of PCF1178CT

• Operating Supply Voltage (typ): 3.3/5V
• Number Of Digits: 4
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: SO
• Pin Count: 28
• Mounting: Surface Mount
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
LCD voltage (see Fig.5)
The adjustable voltage regulator controls the supply
voltage (see Section “LCD voltage programming”) in
relation to temperature for good contrast, for example
when V
V
V
1997 Apr 16
DD
DD
4-digit duplex LCD car clock
(1) Programmed to 4.0 V at 25 C (value within the specified operating range).
(2) Programmed to 4.5 V at 25 C (value within the specified operating range).
(3) Programmed to 5.0 V at 25 C (value within the specified operating range).
= 3 to 4 V at +85 C.
= 5 to 6 V at 40 C.
DD
= 4.5 V at +25 C, then:
Fig.5 Regulated voltage as a function of temperature (typical).
V SS
(V)
8
6
4
2
0
40
(3)
(2)
(1)
0
5
40
80
T ( C)
MSA995
o
120
Product specification
PCF1178C