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NXP Semiconductors Electronic Components Datasheet

PCF85263A Datasheet

Tiny Real-Time Clock/calendar

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PCF85263A
Tiny Real-Time Clock/calendar with alarm function, battery
switch-over, time stamp input, and I2C-bus
Rev. 4.1 — 27 November 2015
Product data sheet
1. General description
The PCF85263A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low
power consumption and with automatic switching to battery on main power loss. The RTC
can also be configured as a stop-watch (elapsed time counter). Three time log registers
triggered from battery switch-over as well as input driven events. Featuring clock output
and two independent interrupt signals, two alarms, I2C interface and quartz crystal
calibration.
For a selection of NXP Real-Time Clocks, see Table 72 on page 90
2. Features and benefits
UL Recognized Component (PCF85263ATL)
Provides year, month, day, weekday, hours, minutes, seconds and 100th seconds
based on a 32.768 kHz quartz crystal
Stop-watch mode for elapsed time counting. From 100th seconds to 999999 hours
Two independent alarms
Battery back-up circuit
WatchDog timer
Three timestamp registers
Two independent interrupt generators plus predefined interrupts at every second,
minute, or hour
Frequency adjustment via programmable offset register
Clock operating voltage: 0.9 V to 5.5 V
Low current; typical 0.28 A at VDD = 3.0 V and Tamb = 25 C
400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz,
8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
Configurable oscillator circuit for a wide variety of quartzes: CL = 6 pF, CL = 7 pF, and
CL = 12.5 pF
3. Applications
Printers and copiers
Electronic metering
Digital cameras
1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 24.


NXP Semiconductors Electronic Components Datasheet

PCF85263A Datasheet

Tiny Real-Time Clock/calendar

No Preview Available !

NXP Semiconductors
PCF85263A
Tiny RTC with alarm, battery switch-over, and I2C-bus
White goods
Elapsed time counter
Network powered devices
Battery backed up systems
Data loggers
Digital voice recorders
Mobile equipment
Accurate high duration timer
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
PCF85263AT
SO8
PCF85263ATL
DFN2626-10
PCF85263ATT
PCF85263ATT1
TSSOP8
TSSOP10
Description
plastic small outline package; 8 leads;
body width 3.9 mm
plastic thermal enhanced extremely
thin small outline package; no leads;
10 terminals; body 2.6 2.6 0.5 mm
plastic thin shrink small outline
package; 8 leads; body width 3 mm
plastic thin shrink small outline
package; 10 leads; body width 3 mm
Version
SOT96-1
SOT1197-1
SOT505-1
SOT552-1
4.1 Ordering options
Table 2. Ordering options
Product type number Orderable part number Sales item
(12NC)
Delivery form
PCF85263AT/A
PCF85263AT/AJ
935302207118 tape and reel, 13 inch
PCF85263ATL/A
PCF85263ATL/AX
935302602115 tape and reel, 7 inch
PCF85263ATT/A
PCF85263ATT/AJ
935304459118 tape and reel, 13 inch
PCF85263ATT1/A
PCF85263ATT1/AJ
935304461118 tape and reel, 13 inch
5. Marking
IC
revision
1
1
1
1
Table 3. Marking codes
Product type number
PCF85263AT/A
PCF85263ATL/A
PCF85263ATT/A
PCF85263ATT1/A
Marking code
85263A
263A
263A
263A
PCF85263A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4.1 — 27 November 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
2 of 100


Part Number PCF85263A
Description Tiny Real-Time Clock/calendar
Maker NXP
Total Page 30 Pages
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