S-3510 Series S-3510 series CMOS real-time clock that inputs/ out

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S-3510 Series S-3510 series CMOS real-time clock that inputs/ out

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REAL-TIME CLOCK
S-3510 Series
S-3510 series CMOS real-time clock that inputs/ outputs serial clock calendar data into/from CPU.
Features
Operating power supply: current consumption: typ. (S-3510AFFJA: typ. output second, minute, hour, day, date, month year Easy serial interface with lines (SIO, SCK, Built-in automatic calendar, automatic leap-year calculation 2099. Built-in voltage detector Built-in constant voltage circuit Built-in oscillation circuit (Built-in Cg/Cd, only)
Applications
Video cameras FAXes Cellular phones Printers
Package
8-Pin (Pin pitch 1.27 (Package drawing code: FJ008-D)
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series Block Diagram
XOUT TPOUT Divider Counter
Sec. Min. Date Mon. Year
Sec.
Min.
Date
Mon.
Year
Shift Register Voltage Detector
Status Register
Serial Interface Controller
Figure
Seiko Instruments Inc.
Rev. 1.2_00 Assignment
8-Pin view TPOUT XOUT
REAL-TIME CLOCK S-3510 Series
Figure
Function
Table Name TPOUT XOUT Function Standard signal output (Nch open-drain output CMOS output) Connects X'ftal resonator (f=32,768 Built-in Cg/Cd, only Power supply (GND) Chip select input (Built-in pull-down resistance) "H": capable inputting/outputting data. capable accepting input. "L": Hi-Z. capable accepting input. Clock input Inputs outputs data from synchronization with clock. clock cannot accepted when "L". Serial data input/output When "L", "Hi-Z". When changes from "H", serves input pin. assigned input output according next command data. type output either open-drain CMOS depending upon model use. Positive power supply
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series Command Configuration
Table Code
Command READ 1(Data Read) READ 2(Data Read) WRITE 1(Data Write) WRITE 2(Data Write) STATUS WRITE RESET TEST START TEST
Note Output from year data Output from data Input from year data Input from data Status write Initialization Test mode start Test mode
Data Configuration
S-3510 series provided with timer data (Binary Coded Decimal) display device automatic calendar. flags configured follows:
Year data
Month data
Date data Status data
12/24
TPEN
TEST
AM/PM
Hour data flags
Minute data flags
Second data flags
AM/PM Flag
Flag Flag TEST Flag
When writing 12-hour display mode, always input 24-hour display mode, unnecessary both ignorged. However, when reading time either display mode read When decrease voltage detected, This valid during reading invalid during writing. power cleared through RESET command. This flag ingored during writing. When test mode set, When always TEST RESET command This valid reading ignored during writing.
Seiko Instruments Inc.
Rev. 1.2_00 Ordering Information
Table Model S-3510ANFJA S-3510ACFJA S-3510ADFJ S-3510AEFJ S-3510AFFJ output open-drain CMOS CMOS open-drain CMOS TPOUT output Selection 32,768 command Selection 32,768 command 32,768 32,768 32,768 TPOUT
REAL-TIME CLOCK S-3510 Series
Oscillation circuit capacity Internal Internal External Internal Internal External Internal
output form open-drain open-drain open-drain open-drain CMOS
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series Absolute Maximum Ratings
Table
(Unless otherwise specified Ta=25°C) Parameter Power supply voltage Input Voltage Output voltage Operating temperature Symbol VIN1 VIN2 VOUT Topr Conditions SCK, (CMOS output) TPOUT, VDD=3.0 Ratings VSS-0.3 VSS+7.0 VSS-0.3 VSS+7.0 VSS-0.3 VDD+0.3 VSS-0.3 VSS+7.0 Unit
Storage temperature Tstg +125 Caution absolute maximum ratings rated values exceeding which product could suffer physical damage. These values must therefore exceeded under conditions.
Recommended Operating Conditions
Table Parameter Power supply voltage Operating temperature Symbol Topr Min. Typ. Max. Unit
Oscillation Characteristics
Table (Unless otherwise specified a=25°C, VDD=3.0 X'ftal resonator: Quartz Techno Ltd., DS-VT-200 (R1=30 32,768 Hz)) Parameter Oscillation start voltage Oscillation start time Frequency deviation between Frequency voltage deviation Input capacitance
CIN1 CIN2 COUT
Symbol VSTA TSTA
Conditions Min. Within VDD=1.7 Applied Applied
Standard Typ. Max.
Unit ppm/V
Output capacitance Applied XOUT load capacitance (CL) changes depending upon capacitance mounted onto Adjust load capacitance. Applied S-3510ANFJx, S-3510ACFJx, S-3510AEFJA (Internal) Applied S-3510ADFJA, S-3510AFFJA (External) Applied S-3510ANFJx, S-3510ACFJx, S-3510AEFJA, S-3510ADFJA, S-3510AFFJA (Internal)
Seiko Instruments Inc.
Rev. 1.2_00 Characteristics
REAL-TIME CLOCK S-3510 Series
Table Unless otherwise specified:Ta=25 °C,VDD=3.0 X'tal resonator:SII Quartz Techno Ltd., DS-VT-200 (R1=30 CL=6 32,768 Parameter Symbol Applicable Conditions Standard Unit Min. Typ. Max. Operating voltage range Ta=-20°C +70°C, Communications when SCK=100 Power current IDD1 CS=0 output load. consumption Communication inhibit CS=0 output load. Communication inhibit current which flows IDD2 through included. output load. Communications when SCK=100 current which flows through included. output load. Communications when SCK=100 Input leak current IIHL1 SIO, VIN=5.5 -0.5 IIHL2 SIO, VIN=VDD -0.5 SIO, IILL -0.5 VIN=0 SCK, Input current IIH2 VIN=5.5 IIH3 VIN=0.4 Input voltage Output current IOL1 TPOUT VIN=0.4 IOL2 VIN=0.4 IOH1 TPOUT VIN=2.6 -200 IOH2 VIN=2.6 -500 Voltage detection VDET Ta=25°C voltage 1.72 Ta=-20°C +70°C current IBLD Ta=-20°C +70°C consumption Applied products except S-3510AFFJA Applied S-3510AFFJA Applied 3510ANFJx, S-3510ADFJA, S-3510AFFJA Applied S-3510ACFJx, S-3510ADFJA, S-3510AFFJA Applied S-3510ANJFx, S-3510AEFJA Applied S-3510ACFJx, S-3510ADFJA, S-3510AFFJA Applied S-3510AFFJA Applied S-3510ACFJx, S-3510ADFJA, S-3510AFFJA
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series Characteristics (S-3510ANFJx, S-3510AEFJA, RL1=30 CL1=50
Conditions: Input:
VDD=1.7 Ta=-20°C 70°C, Interface voltage Vcc=5.0 Output: Table Symbol tSCK tCSH tISU tIHO tACC tCSS Min. Typ. Max. 250000 Unit
Parameter Clock pulse width Setup time prior rising Hold time after rising Input data setup time Input data hold time Output data determination time Setup time prior falling Hold time after falling Input rising/falling time
Characteristics (S-3510ACFJx, S-3510ADFJA, S-3510AFFJA, CL1=50
Conditions Input: VDD=5.0±0.5 Ta=-20°C 70°C Output: Table Symbol tSCK tCSH tISU tIHO tACC tCSS Min. Typ.
Parameter Clock pulse width Setup time prior rising Hold time after rising Input data setup time Input data hold time Output data determination time Setup time prior falling Hold time after falling Input rising/falling time
Max. 250000 0.05
Unit
Characteristics (S-3510ACFJx, S-3510ADFJA, S-3510AFFJA, CL1=50
Conditions Input: VDD=3.0±0.6 Ta=-20°C 70°C Output: Table Symbol tSCK tCSH tISU tIHO tACC tCSS Min. Typ. Max. 250000 0.05 Unit
Parameter Clock pulse width Setup time prior rising Hold time after rising Input data setup time Input data hold time Output data determination time Setup time prior falling Hold time after falling Input rising/falling time
Seiko Instruments Inc.
Rev. 1.2_00 Timing Charts
REAL-TIME CLOCK S-3510 Series
tCSH
tCSS
Figure tISU tIHO tR,tF Figure tSCK tSCK
Input data
tACC
Output data
Figure
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series Operation
Initialization When power switched flag assigned power-on detector. Always turn to"L". Regardless logic flag, initialization must executed, therefore always send RESET command (10101010) from CPU. This allows divider, counter status register S-3510 series reset. Namely, second, minute, hour, day, date, month, year min., hr., Sunday (1), January (01), year) set, counter starts operate upon falling edge
Input Reset Figure
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
Write Status Register S-3510 series provided with 4-bit status register. write data register, send STATUS WRITE command (1011D3D2D1D0). This data retrieved synchronization with falling edge
Free bit: Stores information according user-specified memory bit. does affect function timer. Reset to"0" during initialization. TPOUT output frequency-select S-3510ANFJA, S-3510ACFJx 32768 S-3510AEFJA, S-3510ADFJA, S-3510AFFJA 32768 used Free bit) TPOUT enable S-3510ANFJx, S-3510ACFJx Output High impedance S-3510AEFJA, S-3510ADFJA, S-3510AFFJA Output used Free bit) 12/24-hour display change 12-hour display 24-hour display
When frequency-select rewritten during operation, first pulse generated immediately after turned cannot output correct frequency Upon initialization, (D3, other words, S-3510ANFJx, S-3510ACFJA, output from TPOUT status 24-hour display mode. S-3510AEFJx, S-3510ADFJA, S-3510AFFJA, 32768 output from TPOUT status 24-hour display mode. When initialization executed, data status register specified. Always execute initialization when switching power.
Figure
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
Data Read time data read sending READ command after goes "H". data output order year. After READ command interpreted, time data transmitted from counter shift register. synchronization with falling edge clock, status changes from input output, timer register output. After then, synchronization with falling edge clock, time data output from shift register. power supply voltage detector activates, (BLD bit) to"1", which allows power supply voltage monitored. more details, refer "(6) Voltage Detector".
READ1 mode
XXXX SSSSSSS
Output Mode Change READ2 mode
XXXX
Output Mode Change
Figure
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
Data Write Sending WRITE command after changes from to"H" halts update operation resets frequency divider. This allows time data written. data input order year. time data transmitted from written shift register synchronization with rising edge clock. After transmission minute data been completed, currently-stored data transmitted counter during period transmission second data, monthend correction executed. second data transmitted from shift register second counter synchronization with point where changes from to"L". Accordingly, second data error processing performed. Turning allows divider update operation start. second after, carry-up signal transmitted second counter. non-existent data written second counter, second counter "00", carry-up signal transmitted minute counter.
WRITE1 mode
YYYYYYY XXXX
SSSSSS 123456
WRITE mode
WWWX SSSSSS 123456
Caution When turned "L", correct data cannot written. Never turn before WRITE completed. Refer timing chart shown below. Figure
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
2345
Dividing steps reset "H". bits minute, hour (date, month, year) counter zero cleared "H". With respect where data written minute, hour (date, month, year) counter "H". Invalid data processing performed "H". Month-end processing performed "H". second data written "H".
Figure
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
Month-End Correction When time data written counter, validity checked either invalid data month-end processing performed. [Data Processing] Table Normal data Year data Month data data Date data Hour data (24-hour) (12-hour) Minute data Second data
Error data XAto
Result
Invalid data processing second data performed through carry pulse second after completion writing. carry pulse sent minute counter. Write into AM/PM flag using 12-hour display. 24-hour display, neglected when writing into AM/PM flag. When reading, however, read during o'clock, read during o'clock.
[Month-End Processing] Non-existent days month automatically processed following month. example, April automatically Leap years allso adjusted. Voltage Detector S-3510 series incorporates voltage detector that performs sampling once second 62.5 When supply voltage goes below detection voltage, latch-up circuit latches "H", stops sampling. When turned "H", output latch-up circuit transmitted shift register only when subsequent command READ command. Reading allows decrease voltage monitored. turned after completing read, sampling restarts. That once decrease voltage detected, detection performed status kept long initialization performed READ command sent. Caution flag read when supply voltage increases first read executed. After that, however, sampling permitted. Therefore, when next read performed after sampling detector, flag reset. Refer timing charts shown next:
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
VDET
Sampling pulse Latch circuit output
Halt
Halt
Halt
flag
Figure
[Timing Sampling Pulse] Carry pulse
62.5
Carry-up timing
Latch pulse
Latch timing 31.25
Sampling pulse
31.25 62.5
Figure
Seiko Instruments Inc.
Rev. 1.2_00 Application Circuit Examples
S-3510ANFJx, S-3510AEFJx (Nch open-drain output) S-3510ANFJx/AEFJA TPOUT XOUT External
REAL-TIME CLOCK S-3510 Series
Figure S-3510ACFJx, S-3510ADFJx (CMOS output) Power supply change circuit
S-3510ACFJx/ADFJA TPOUT XOUT
External
Figure Caution case (3), voltage more than cannot applied SIO,CS,SCK. communication purpose, switch system power supply (VCC) turn after system power supply stabilizes. Always turn switch system power supply off.
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
S-3510AFFJ (SIO:CMOS output, TPout:CMOS output)
S-3510AFFJA TPOUT XOUT External
Figure Caution case (3), voltage more than cannot applied SIO,CS,SCK. communication purpose, switch system power supply (VCC) turn after system power supply stabilizes. Always turn switch system power supply off.
When VDD<VCC, terminals directly connected because there flow current from CPU.
Precautions
oscillation which uses quartz crystal resonator sensitive external noise which have effect accuracy watch. Make sure design your oscillation circuit with this mind. Configure quartz crystal resonator close possible. Take measures sufficient insulation between pins XOUT. design circuit where signal lines power lines pass close oscillation circuit. When using other resonators, specified herein other than DS-VT-200, always check accuracy stability oscillation changing conditions such power supply voltage temperature actual use. load capacitance (CL) quartz crystal resonator visibly changes depending upon capacitance mounted onto Adjust load capacitance. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. claims responsibility disputes arising connection with infringement products including this patents owned third party.
Seiko Instruments Inc.
Rev. 1.2_00 Characteristics
IDD1 (The products except S-3510AFFJA) Ta=25°C IDD1 (µA) IDD1 IDD1 (µA)
VDD=1.7 VDD=5.5
REAL-TIME CLOCK S-3510 Series
(S-3510AFFJA) Ta=25°C IDD1 (µA)
VDD=5.0 VDD=3.0
Ta(°C)
IDD2 (S-3510ANFJx,S-3510AEFJA)
SCK=100 interface Ta=25°C
IDD2 (S-3510ANFJx,S-3510AEFJA) IDD2 (µA) VDD=3.0
SCK=100 interface
IDD2 (µA)
VDD=5.0
Ta(°C)
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
IDD2 VDD=5.0 IDD2 (µA) VDD=3.0
SCK=500
IDD2 fSCK IDD2 (µA) VDD=3.0 VDD=5.0
(°C) IBLD
Ta=25°C
fSCK(kHz)
1,000
IBLD
VDD=5.5 VDD=5.0
IBLD (µA) IBLD (µA)
VDD=3.0 VDD=1.7
(°C)
detection voltage temperature characteristics
VDET
(°C)
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
TPOUT output transistor characteristics
Ta=25°C
output transistor characteristics
Ta=25°C
IOL1 (mA)
VDD=3.0
VDD=5.0
IOL2 (mA)
VDD=3.0
VDD=5.0
TPOUT voltage
voltage
output transistor characteristics IOH2 (mA)
Ta=25°C
VDD=3.0
VDD=5.0
voltage
input current characteristics
Ta=25°C VDD=5.0V
(mA)
VDD=3.0V
voltage
Seiko Instruments Inc.
REAL-TIME CLOCK S-3510 Series
Oscillation frequency deviation
Ta=25°C
Oscillation frequeny temperature deviation -120
VDD=3.0
(ppm) f(VDD) f(3V) f(3V) (ppm)
(°C) f(Ta)-f(25°C) f(25°C)
fTa=
(ppm)
Power-on detector characteristics
t1=Condition where power-on detected: t2=Condition where data retained functions normally when power supply voltage falls: t3=Condition where data retained functions normally when power supply voltage rises:
Seiko Instruments Inc.
5.02±0.2
0.20±0.05
1.27
0.4±0.05
FJ008-A-P-SD-2.1
TITLE SCALE UNIT
SOP8J-A-PKG Dimensions FJ008-A-P-SD-2.1
Seiko Instruments Inc.
2.0±0.05
4.0±0.1(10 pitches:40.0±0.2) 0.3±0.05
5°max.
8.0±0.1
2.1±0.1
6.7±0.1
Feed direction
FJ008-D-C-SD-1.1
TITLE SCALE UNIT
SOP8J-D-Carrier Tape FJ008-D-C-SD-1.1
Seiko Instruments Inc.
2±0.5 Enlarged drawing central part 2±0.5 13.5±0.5
FJ008-D-R-SD-1.1
TITLE SCALE UNIT
SOP8J-D-Reel FJ008-D-R-SD-1.1
QTY. 2,000
Seiko Instruments Inc.
information described herein subject change without notice. Seiko Instruments Inc. responsible problems caused circuits diagrams described herein whose related industrial properties, patents, other rights belong third parties. application circuit examples explain typical applications products, guarantee success specific mass-production design. When products described herein regulated products subject Wassenaar Arrangement other agreements, they exported without authorization from appropriate governmental authority. information described herein other purposes and/or reproduction copying without express permission Seiko Instruments Inc. strictly prohibited. products described herein cannot used part device equipment affecting human body, such exercise equipment, medical equipment, security systems, equipment, apparatus installed airplanes other vehicles, without prior written permission Seiko Instruments Inc. Although Seiko Instruments Inc. exerts greatest possible effort ensure high quality reliability, failure malfunction semiconductor products occur. user these products should therefore give thorough consideration safety design, including redundancy, fire-prevention measures, malfunction prevention, prevent accidents, fires, community damage that ensue.

S-3510 Series S-3510 series CMOS real-time clock that inputs/ out

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