DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus Moisture Seitivity Level: MSL=1 FEATURES: APPLICATIONS: With state-of-the-art RTC Technology by Micro Crystal AG Wide range in communication & measuring equipment RTC module with built-in Tuning Fork crystal oscillating at 32.768 khz Commercial & Industrial applicatio Factory calibrated, all built-in Temperature Compeation circuitry Time accuracy Automotive electronics applicatio Option A & B. See Part Identification on page 7 for details Wireless communicatio Ultra low power coumption: 8nA typ @ DD = 3. / Tamb = 25 PDA and Palm Pilots Wide clock operating voltage: 1.3 5.5 Credit Cards with Security Technology Wide interface operating voltage: 1.4 5.5 Extended operating temperature range: -4 to +125 SPI serial interface with fast mode SCL clock frequency of 1 MHz Provides year, month, day, weekday, hours, minutes and seconds Highly versatile alarm and timer functio Integrated Low-oltage Detector, Power-On Reset and Self-Recovery System Main Power Supply to Backup Battery switchover circuitry with Trickle Charger Programmable CLKOUT pi for peripheral devices (32.768 khz / 124 Hz / 32 Hz / 1 Hz) Small and compact package size:. RoHS-compliant and % leadfree STANDARD SPECIFICATIONS: Absolute Maximum Ratings GND-.3 +6. -5 +5 DD Pin Input oltage (I) GND-.3 DD +.3 Input Pin Output oltage (O) GND-.5 DD +.5 INT / CLKOUT DC Input Current (II) -1 +1 DC Output Current (IO) -1 +1 3 mw Supply oltage (DD) Supply Current (IDD; ISS) Total Power Dissipation (PTOT) Operating Temperature Range (TOPR) -4 +125 ºC Storage Temperature (TSTO) -55 +125 ºC Frequency Accuracy ( F/F) ±1 ± Frequency vs oltage ( F/) ±.5 ±1. / >GND / <DD Stored as bare product Frequency and Time Characteristics DD=3.; SS=; TAMB=+25; fosc=32.768khz 32.768kHz Oscillator Characteristics Frequency vs Temperature ( F/TOPR) Turnover Temperature (TO) Aging (first year) -.35/2 (TOPR-TO)2 ±1% + +25-3 +3 +3 FCLKOUT=32.768kHz; TAMB=+25; DD=3. TAMB=+25; DD=1.4~5.5 TOPR=-4~+125; DD=3. TAMB=+25 Start-up Time oltage(start) Start-up Time (TSTART) CLKOUT duty cycle : 8 4.5 3 1 3 5 6 s % TAMB=-4 ~ +85 TAMB=-4 ~ +125 FCLKOUT=32.768kHz; TAMB=+25 isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus (Continued) Time accuracy, DTCXO Digitally Temperature Compeated ±1 TAMB=+25 Time Accuracy Option: A ( t/t) Time Accuracy Option: B ( t/t) TAMB= ~ +5 ±2 TAMB=-1 ~ +65 TAMB=-4 ~ +85 ±6 TAMB=-4 ~ +125 ±8 TAMB=+25 ±1 TAMB= ~ +5 TAMB=-1 ~ +65 ±1 TAMB=-4 ~ +85 ±1 ±25 TAMB=-4 ~ +125 ±15 Static Characteristics DD=1.4~5.5; SS=; TAMB=-4 ~+125; fosc=32.768khz Supplies Supply oltage (DD) Minimum Supply oltage Detection (LOW1) Minimum Supply oltage Detection (LOW2) Main Supply to Backup Supply Switchover Hysteresis (HYST) Supply Current IDD (BACK=) or IBACK (DD=) : 8 DD=1.4 DD=1.4 DD=3.3 DD=3.3 DD=5. DD=5. Time-keeping mode I2C bus reduced speed I2C bus full speed 2.1 TAMB=-4 ~ +125 1.4 TAMB=-4 ~ +125 m DD to BACK = 3. SPI bus inactive CLKOUT disabled BACK= Or DD= 1.4 5.5 2.1 5.5 1.8 1..6 1.5 4.6.8 2. 5.2.9 2.2 5.5 isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus (Continued) Supply Current (IDD) Current Coumption (IDD32K) SCL= khz DD = 1.4 SCL= khz DD = 1.4 SCL= 1MHz DD = 3.3 SCL= 1MHz DD = 3.3 SCL= 1MHz DD = 5. SCL= 1MHz DD = 5. 14 18 5 SPI bus active CLKOUT disabled SPI bus inactive CLKOUT =32.768kHz CLOAD =7.5pF 55 65 75 DD=5. 2.5 3.4 DD=3.3 1.5 2.2 DD=1.4 1.1 1.6 Input LOW Level Input oltage (IL) HIGH Level Input oltage (IH) Input Leakage Current (IL) 8%* DD Tamb=-4 ~+85-1 Tamb=-4 ~+125-1.5 Input Capacitance (CI) : 8 %* DD +1 +1.5 7 DD = 1.4 ~ 5.5DD Pi:SCL,SDI,CLKOE,CE SS>I<DD pf isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus (Continued) Output HIGH Level Output oltage (OH) DD = 1.4; IOH =.1 1. DD = 3.3; IOH = 1.5 2.7 DD = 5.; IOH = 2. 4.5 LOW Level Output oltage (OL) DD = 1.4; IOL =.4.2 DD = 3.3; IOL = 1.5.25 DD = 5.; IOL = 5..8 OH = 4.5/ DD = 5 2. OL =.8/ DD = 5-5. HIGH Level Output Current (IOH) LOW Level Output Current (IOL) Output Leakage Current (ILO) O = DD or SS O = DD or SS -1 +1-1.5 +1.5 Operating Temperature Range Operating Temperature Range (TOPR) EEPROM Characteristics Read oltage (Read) Programming oltage (Prog) EEPROM Programming Time (TProg) EEPROM Write/Erase Cycles (HYST) : 8-4 1.4 2.2 1 Byte EEPROM User 1 Byte EEPROM Control 35 2-4 Byte EEPROM Control DD to BACK = 3. +125 ms 135 5 Cycles isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus (Continued) Trickle Charger Current Limiting Resistors R8K 8 Rk R5k 5 R1.5k 1.5 ±6 DD = 5. BACK = 3. kω TAMB= 25 Thermometer Thermometer Precision (TE) SPI Interface Dynamic Characteristics SS=; TAMB=-4 ~+125; All timing values are valid within the operating supply voltage range and references to IL and IH with an input voltage swing from SS and DD. SCL Clock Frequency Symbol DD=1.6 fclk (SCL) DD=2.4.2 DD=3.3.6 DD=5. 1. 1. MHz SCL Time tscl 5 1.7 1 1 µs Clock HIGH Time tclk(h) 15 7 4 4 Clock LOW Time tclk(l) 15 7 4 4 Rise Time tr For SCL signal 8 8 Fall Time tf For SCL signal 8 8 CE Setup Time tsu(ce) CE Hold Time th(ce) 5 3 CE Recovery Time trec(ce) 4 3 CE Pulse Width tw(ce) Measured after valid subaddress is received Setup Time tsu Setup time for SDI data Hold Time th Hold time for SDI data 5 3 SDO Read Delay Time SDO Disable Time Traition Time SDI to SDO : 8 td(r)sdo tdis(sdo) tt(sdi-sdo).49 Bus load = 5pF No load value; bus will be held up by bus-capacitance; use RC time cotant with application values Prepare for s to avoid bus conflict.49.49.49 s 13 65 35 35 5 5 isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus Interface Timing Characteristics PART IDENTIFICATION: AB-RTCMC-32.768 khz-eoa9-s3- Operating Temp. Range D: -4 ~ +85 H: -4 ~ +125 - Timing Accuracy A: see Table 1 below B: see Table 1 below Packaging Blank: Bulk T: pcs/reel Table 1. Time accuracy, DTCXO Digitally Temperature Compeated Time Accuracy Option: A Time Accuracy Option: B : 8 TAMB=+25 ±1 TAMB= ~ +5 ±2 TAMB=-1 ~ +65 TAMB=-4 ~ +85 ±6 TAMB=-4 ~ +125 ±8 TAMB=+25 ±1 TAMB= ~ +5 TAMB=-1 ~ +65 ±1 TAMB=-4 ~ +85 ±1 ±25 TAMB=-4 ~ +125 ±15 isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus OUTLINE DIMENSIONS: Recommended Land Pattern Dimeio: mm PIN DESCRIPTION: Pin No. Pin Name 1 CLKOE 2 DD 3 CLKOUT 4 SCL Serial Clock Input pin; may float when CE inactive 5 SDO Serial Data Output pin; push-pull; high-impedance when not driving; can be connected to SDI for single-wire data line. 6 SS Ground 7 INT Interrupt output pin; open-drain; active LOW 8 CE Chip Enable input; active HIGH 9 BACKUP 1 SDI : 8 Function CLKOUT enable/disable pin; enable is active HIGH; tie to GND when not using CLKOUT Positive supply voltage; positive or negative steps in supply voltage may affect oscillator performance, recommend 1 nf decoupling capacitor close to device Clock Output pin; CLKOUT or INT function can be selected.(control_1; bit7; Clk/Int) CLKOUT output push-pull / INT function open-drain requiring pull-up resistor Backup Supply oltage; tie to GND when not using backup supply voltage Serial Data Input pin; may float when CE inactive isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus BLOCK DIAGRAM: RECOMMENDED REFLOW PROFILE: Maximum Reflow Conditio in accordance with IPC/JEDEC J-STD-C -free Temperature Conditio Average Ramp-up Rate (TSmax to TP) 3/second max /s Ramp Down Rate (Tcool) 6/second max /s 8 minutes max m Temperature Min (TSmin) 15 Temperature Max (TSmax) Time Tsmin to Tsmax (ts) 6 ~ 18 sec Time 25 to Peak Temperature (T to-peak) Preheat Time Above Liquidus Temperature Liquidus (TL) Time above Liquidus (tl) 217 6 ~15 sec Peak Temperature Peak Temperature (TP) Time within 5 of Peak Temperature (tp) : 8 26 ~ 4 sec isit www.abracon.com for Terms & Conditio of Sale
DTCXO Temperature Compeated Real-Time-Clock Module with SPI bus TAPE & REEL: T = pcs/reel Dimeion : mm Dimeion: mm ATTENTION: Abracon Corporation s products are COTS Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applicatio. Abracon s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applicatio or any application requiring high reliability where component failure could result in loss of life and/or property. For applicatio requiring high reliability and/or presenting an extreme operating environment, written coent and authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information. : 8 isit www.abracon.com for Terms & Conditio of Sale