PCF2123TS/1.118 NXP Semiconductors, PCF2123TS/1.118 Datasheet - Page 45

• Manufacturer Part Number: PCF2123TS/1.118
• Manufacturer: NXP Semiconductors

Specifications of PCF2123TS/1.118

• Bus Type: Serial (3-Wire, SPI)
• Package Type: TSSOP
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
13. Application information
PCF2123
Product data sheet
Fig 29. Typical application diagram
A 1 farad super capacitor combined with a low V
supply. With the RTC in its minimum power configuration i.e. timer off and CLKOUT off, the RTC
may operate for weeks.
All information provided in this document is subject to legal disclaimers.
supercapacitor
Rev. 03 — 5 October 2010
100 nF
1 F
OSCI
OSCO
V
DD
CLKOE
PCF2123
V
SS
CLKOUT
F
diode can be used as a standby or back-up
INT
SDO
SCL
SDI
CE
SPI Real time clock/calendar
001aai557
PCF2123
© NXP B.V. 2010. All rights reserved.
45 of 61