pcf2129a NXP Semiconductors, pcf2129a Datasheet
pcf2129a
Manufacturer Part Number
pcf2129a
Description
Integrated Rtc, Tcxo And Quartz Crystal
Manufacturer
NXP Semiconductors
Datasheet
1.PCF2129A.pdf
(68 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
pcf2129aT
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Company:
Part Number:
pcf2129aT/1
Manufacturer:
NXP
Quantity:
12 246
Part Number:
pcf2129aT/1,518
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Company:
Part Number:
pcf2129aT/1Ј¬512
Manufacturer:
PH3
Quantity:
3 040
Part Number:
pcf2129aT/2,518
Manufacturer:
NXP/恩智浦
Quantity:
20 000
1. General description
2. Features
1.
The definition of the abbreviations and acronyms used in this data sheet can be found in
The PCF2129A is a CMOS
Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized
for very high accuracy and very low power consumption. The PCF2129A has a selectable
I
function, a timestamp function, and many other features.
2
C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog
PCF2129A
Integrated RTC, TCXO and quartz crystal
Rev. 01 — 13 January 2010
Temperature Compensated Crystal Oscillator (TCXO) with integrated capacitors
Accuracy: ±3 ppm from −15 °C to +60 °C
Integration of a 32.768 kHz quartz crystal and oscillator in the same package
Provides year, month, day, weekday, hours, minutes, and seconds
Timestamp function
Two line bidirectional 1 MHz Fast-mode Plus (Fm+) I
pin SDA)
3 line SPI-bus with separate data input and output (maximum speed 6.5 Mbit/s)
Battery backup input pin and switch-over circuitry
Battery backed output voltage pin
Battery low detection function
Extra power fail detection function with input and output pins
Power-On Reset Override (PORO)
Oscillator stop detection function
Interrupt output (open-drain)
Programmable 1 second or 1 minute interrupt
Programmable watchdog timer with interrupt and reset capability
Programmable alarm function with interrupt capability
Programmable square wave open-drain output pin
Clock operating voltage: 1.2 V to 4.2 V
Low supply current: typical 0.65 μA at V
Automatic leap year correction
with interrupt capability
detection of two different events on one multilevel input pin (e.g. for tamper
detection)
1
real time clock and calendar with an integrated Temperature
DD
= 3.0 V and T
Section
2
C-bus interface (I
17.
amb
= 25 °C
Product data sheet
OL
= 20 mA at