PCF2127: Accurate RTC with integrated quartz crystal for industrial applications

The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz crystal optimized for very high accuracy and very low power consumption. The PCF2127 has 512 bytes of general-purpose static RAM, a selectable I²C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, a timestamp function, and many other features.

SOT163-1

Data Sheets (1)

Name/Description	Modified Date
Accurate RTC with integrated quartz crystal for industrial applications (REV 8.0) PDF (1.1 MB) PCF2127	19 Dec 2014

Application Notes (3)

Name/Description	Modified Date
Application and soldering information for the PCA2129 and PCF2129 TCXO RTCs (REV 3.1) PDF (170.0 kB) AN11186	06 Mar 2015
Application and soldering information for the PCF2127 TCXO RTC (REV 2.1) PDF (169.0 kB) AN11266	06 Mar 2015
ESD and EMC sensitivity of IC (REV 1.0) PDF (745.0 kB) AN10853	14 Mar 2013

Users Guides (2)

Name/Description	Modified Date
User manual for the accurate RTC demo board OM13513 containing PCF2127T and PCF2129AT (REV 2.0) PDF (1.2 MB) UM10762	05 Oct 2015
Store and transport requirements (REV 3.0) PDF (325.0 kB) UM10569	10 Mar 2015

Brochures (1)

Name/Description	Modified Date
NXP® aRTCs PCF2127, PCA2129 and PCF2129: High-precision aRTCs with embedded quartz crystal (REV 1.0) PDF (908.0 kB) 75017568	18 Jun 2014

Package Information (2)

Name/Description	Modified Date
plastic small outline package; 16 leads; body width 7.5 mm (REV 1.0) PDF (317.0 kB) SOT162-1	08 Feb 2016
plastic small outline package; 20 leads; body width 7.5 mm (REV 1.0) PDF (335.0 kB) SOT163-1	08 Feb 2016

Packing (2)

Name/Description	Modified Date
SO20; Reel dry pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,518 or... (REV 1.0) PDF (277.0 kB) SOT163-1_518	16 Dec 2014
SO16; Reel dry pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,518 or... (REV 1.0) PDF (271.0 kB) SOT162-1_518	25 Nov 2014

Supporting Information (4)

Name/Description	Modified Date
Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE	30 Sep 2013
Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE	30 Sep 2013
Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW	08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE	08 Oct 2009

Ordering Information

Product	Package version	resolution	Interface	V_DD (interface) (V)	watchdog timer	Programmable alarm	countdown timer	V_DD (clock) (V)	Leap year tracking	I_DD (nA)	temperature compensation	T_amb (Cel)	AEC-Q100 compliant

Package Information

Product ID	Package Description	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	RoHS / Pb Free / RHF	LeadFree Conversion Date	IFR(FIT)	MTBF(hour)	MSL	MSL LF
PCF2127AT/2		SOT163-1	Reflow_Soldering_Profile Wave_Soldering_Profile Reflow_Soldering_Profile Wave_Soldering_Profile	Reel 13" Q1/T1 in Drypack	Active	PCF2127AT/2Y (9352 998 67518)	Standard Marking	PCF2127AT/2			5	2E8	3	3
PCF2127T/2		SOT162-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1 in Drypack	Active	PCF2127T/2Y (9352 998 66518)	Standard Marking	PCF2127T/2		Always Pb-free	5	2E8	3	3