PCA21125T/Q900/1,1

PCA21125 SPI-bus Real-Time Clock and calendar Rev. 2 — 25 November 2014 Product data sheet 1. General description The PCA21125 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low-power consumption and an operating temperature up to 125 C. Data is transferred via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timer functions are also available with the possibility to generate a wake-up signal on the interrupt pin. For a selection of NXP Real-Time Clocks, see Table 46 on page 41 2. Features and benefits  AEC Q100 compliant for automotive applications.  Provides year, month, day, weekday, hours, minutes, and seconds based on 32.768 kHz quartz crystal  Resolution: seconds to years  Clock operating voltage: 1.3 V to 5.5 V  Low supply current: typical 0.8 A at Tamb = 25 C  4-line SPI-bus with separate, but combinable data input and output  Serial interface at VDD = 1.6 V to 5.5 V  1 second or 1 minute interrupt output  Freely programmable timer with interrupt capability  Freely programmable alarm function with interrupt capability  Integrated oscillator capacitor  Internal Power-On Reset (POR)  Open-drain interrupt pin 3. Applications  Automotive time keeping  Metering 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 21. PCA21125 NXP Semiconductors SPI-bus Real-Time Clock and calendar 4. Ordering information Table 1. Ordering information Type number Package PCA21125T Name Description Version TSSOP14 plastic thin shrink small outline SOT402-1 package; 14 leads; body width 4.4 mm 4.1 Ordering options Table 2. Ordering options Product type number Orderable part number Sales item (12NC) Delivery form IC revision PCA21125T/Q900/1 PCA21125T/Q900/1,1 tape and reel, 13 inch 1 935290408118 5. Marking Table 3. PCA21125 Product data sheet Marking codes Type number Marking code PCA21125T/Q900/1 PC21125 All information provided in this document is subject to legal disclaimers. Rev. 2 — 25 November 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 2 of 49 PCA21125 NXP Semiconductors SPI-bus Real-Time Clock and calendar 6. Block diagram 26&, 26&,//$725 N+] ',9,'(5 &/2&.287 &/.287 26&2 &26&2 &21752/ 021,725 K &RQWUROB K &RQWUROB 'K &/.287BFRQWURO 32:(521 5(6(7 7,0( K 6HFRQGV 9'' K 0LQXWHV 966 K +RXUV :$7&+ '2* K 'D\V K :HHNGD\V K 0RQWKV K