M41T315W-65MH6TR ST Microelectronics, M41T315W-65MH6TR Datasheet
M41T315W-65MH6TR
Related parts for M41T315W-65MH6TR
M41T315W-65MH6TR Summary of contents
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... M41T315Y 4.5 to 5.5V CC 4.25V V 4.50V PFD – M41T315V 3.0 to 3.6V CC 2.80V V 2.97V PFD – M41T315W 2.7 to 3.3V CC 2.60V V 2.70V PFD NO ADDRESS SPACE REQUIRED TO COMMUNICATE WITH RTC PROVIDES NONVOLATILE SUPERVISOR FUNCTIONS FOR BATTERY BACKUP OF SRAM FULL ±10% V OPERATING RANGE CC INDUSTRIAL OPERATING TEMPERATURE RANGE (–40 to +85°C) ...
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... M41T315Y*, M41T315V, M41T315W TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. 16-pin SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. 28-pin SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 3. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 4. 16-pin SOIC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 5. 28-pin SOIC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 6. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 7. M41T315Y/V/W to RAM/Clock Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 2. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Non-volatile Supervisor Operation ...
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... Figure 17.SH – 4-pin SNAPHAT Housing for 120mAh Battery and Crystal, Package Outline . . . . 21 Table 15. SH – 4-pin SNAPHAT Housing for 120mAh Battery and Crystal, Package Mech. Data . 21 PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 16. Ordering Information Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table 17. SNAPHAT Battery Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 18. Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 M41T315Y*, M41T315V, M41T315W 3/24 ...
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... M41T315Y*, M41T315V, M41T315W SUMMARY DESCRIPTION The M41T315Y/V/W RTC Supervisor is a combi- nation of a CMOS TIMEKEEPER tile memory supervisor. Power is constantly monitored by the memory supervisor. In the event of power instability or absence, an external battery maintains the timekeeping operation and provides power for a CMOS static RAM by switching on and invoking write protection to prevent data corrup- tion in the memory and RTC ...
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... AI03909 XO 32,768 Hz CLOCK/CALENDAR LOGIC CRYSTAL XI UPDATE READ WRITE TIMEKEEPER REGISTER CONTROL LOGIC POWER-FAIL ACCESS ENABLE SEQUENCE DETECTOR I/O DATA BUFFERS POWER-FAIL DETECT V CCI LOGIC V BAT M41T315Y*, M41T315V, M41T315W CCI CCO ...
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... M41T315Y*, M41T315V, M41T315W Figure 7. M41T315Y/V/W to RAM/Clock Interface A0- RST BAT 6/24 A0-An DATA I/O CMOS WE SRAM CEO V CCO M41T315Y/V/W CEI Q RST V CCI V BAT 32.768 CRYSTAL D0- AI04258 ...
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... IL SO Note: 1. See Table 11., page 17 for details. M41T315Y*, M41T315V, M41T315W ister match is found, the pointer increments to the next location of the comparison register and awaits the next WRITE cycle match is not found, the pointer does not ad- vance and all subsequent WRITE cycles are ig- nored ...
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... M41T315Y*, M41T315V, M41T315W Non-volatile Supervisor Operation A switch is provided to direct power from the bat- tery input with a maximum voltage CCI CCO drop of 0.3 Volts. The V output pin is used to CCO supply uninterrupted power to CMOS SRAM. The M41T315Y/V/W safeguards the clock and RAM data by power-fail detection and write protection ...
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... RST Pulse Width RST Note: 1. Valid for Ambient Operating Temperature function of the latter occurring edge CEI and t are functions of the first occurring edge CEI in RAM mode M41T315Y*, M41T315V, M41T315W (1) Min Parameter ...
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... M41T315Y*, M41T315V, M41T315W Table 4. AC Electrical Characteristics (M41T315V/W) Symbol t t READ Cycle Time AVAV CEI Access Time ELQV Access Time GLQV CEI to Output Low Z ELQX COE Output Low Z GLQX OEE t t CEI to Output High Z EHQZ ...
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... This pattern is sent to the clock LSB to MSB. M41T315Y*, M41T315V, M41T315W Hex Value ...
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... M41T315Y*, M41T315V, M41T315W Data Retention Most low power SRAMs on the market today can be used with the M41T315Y/V/W. There are, how- ever some criteria which should be used in making the final choice of an SRAM to use. The SRAM must be designed in a way where the chip enable input disables all other inputs to the SRAM ...
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... 0.01 Seconds Seconds Minutes 10 / Hrs Hours (24 Hour Format) A/P OSC RST 0 10 date Date: Day of the Month 0 10M tRST M41T315Y*, M41T315V, M41T315W Function/Range BCD Format D1 D0 Seconds Seconds Minutes Hours Day of the Week Day Date Month Month Year Year AI04260 00-99 00-59 00-59 ...
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... M41T315Y*, M41T315V, M41T315W MAXIMUM RATING Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicat the Operating sections of this specification is Table 6 ...
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... Note: 1. Effective capacitance measured with power supply at 5V; sampled only; not 100% tested 25° 1MHz. 3. Outputs were deselected. M41T315Y*, M41T315V, M41T315W ment Conditions listed in the relevant tables. De- signers should check that the operating conditions in their projects match the measurement condi- tions when using the quoted parameters ...
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... M41T315Y*, M41T315V, M41T315W Table 9. DC Characteristics Sym Parameter Condition 0V Input Leakage ( Current 0V Output Leakage I OL Current (3) Supply Current I CC1 V Power Supply CC (4) I CCO1 V Current Supply Current (3) I CC2 (TTL Standby) V Power Supply CC (3) I CC3 V Current (5) Input Low Voltage V IL (5) Input High Voltage ...
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... DON'T CARE V BAT – 0.2V (1,2) Parameter (min) V Fall Time CC V Fall Time CC (max) V Rise Time CC M41T315Y M41T315V/W = –40 to 85° 4.5 to 5.5V or 2.7 to 3.6V (except where noted 15. M41T315Y*, M41T315V, M41T315W Min Typ Max 32.768 60 12.5 tR tREC V BAT – 0.2V tPD AI04257 Min Max 1.5 2.5 300 ...
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... M41T315Y*, M41T315V, M41T315W PACKAGE MECHANICAL INFORMATION Figure 14. SO16 – 16-lead Plastic Small Outline, Package Outline SO-b Note: Drawing is not to scale. Table 12. SO16 – 16-lead Plastic Small Outline (150 mils body width), Package Mech. Data Symb ...
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... Figure 15. SOH28 – 28-lead Plastic Small Outline, Package Outline SOH-A Note: Drawing is not to scale. Table 13. SOH28 – 28-lead Plastic Small Outline, Package Mechanical Data Symb M41T315Y*, M41T315V, M41T315W Typ Min Max 3.05 0.05 0.36 2.34 2.69 0.36 0.51 0.15 0.32 17.71 18.49 8.23 8.89 1.27 – ...
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... M41T315Y*, M41T315V, M41T315W Figure 16. SH – 4-pin SNAPHAT Housing for 48mAh Battery and Crystal, Package Outline Note: Drawing is not to scale. Table 14. SH – 4-pin SNAPHAT Housing for 48mAh Battery and Crystal, Package Mech. Data Symb 20/ ...
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... Figure 17. SH – 4-pin SNAPHAT Housing for 120mAh Battery and Crystal, Package Outline Note: Drawing is not to scale. Table 15. SH – 4-pin SNAPHAT Housing for 120mAh Battery and Crystal, Package Mech. Data Symb M41T315Y*, M41T315V, M41T315W Typ Min Max 10.54 8.00 8.51 7.24 8 ...
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... M41T315Y*, M41T315V, M41T315W PART NUMBERING Table 16. Ordering Information Scheme Example: Device Type M41T Supply Voltage and Write Protect Voltage (1) 315Y = V = 4.5 to 5.5V PFD 315V = V = 3.0 to 3.6V 2.80 to 2.97V CC PFD 315W = V = 2.7 to 3.3V 2.60 to 2.70V CC PFD Speed –65 = 65ns (315Y) –85 = 85ns (315V/W) Package ...
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... Reformatted; add Lead-free information (Table 6, 16) M41T315, M41T315Y, M41T315V, M41T315W, 41T315, 41T315Y, 41T315V, 41T315W, T315,SUPERVISOR, SUPERVISOR, SUPERVI- SOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, SU- PERVISOR, SUPERVISOR, SUPERVISOR, SUPERVISOR, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, NVRAM, ...
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... M41T315Y*, M41T315V, M41T315W Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...