MCP79401T-I/MS Microchip Technology, MCP79401T-I/MS Datasheet
MCP79401T-I/MS
Specifications of MCP79401T-I/MS
Related parts for MCP79401T-I/MS
MCP79401T-I/MS Summary of contents
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... Million Erase/Write Cycles for Unique ID • Packages include 8-Lead SOIC, TSSOP, 2x3 TDFN, MSOP • Pb-Free and RoHS Compliant • Temperature Ranges: - Industrial (I): -40°C to +85°C 2011 Microchip Technology Inc. MCP79400/MCP79401/MCP79402 and Battery Switchover Description: The MCP7940X series of low-power Real-Time Clocks Unique ID ...
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... MCP7940X FIGURE 1-1: TYPICAL OPERATING CIRCUIT X1 RTCC Time-Stamp/ SRAM Alarms Switch BAT BAT DS25009A-page MFP 2 I C™ SCL SDA 2011 Microchip Technology Inc. ...
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... Rise Time (Note CC D15 V V Voltage Range BAT BAT (Note 1) Note 1: This parameter is periodically sampled and not 100% tested. 2: Standby with oscillator running 2011 Microchip Technology Inc. Electrical Characteristics: Industrial (I +1.8V to 5.5V CC Min. Typ. Max. Units — — — 0.7 V — ...
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... V 5.5V CC 1.8V V < 2.5V CC 2.5V V 5.5V CC 1.8V V < 2.5V CC 2.5V V 5.5V CC 1.8V V < 2.5V CC 2.5V V 5.5V CC (Note 1 and Note 2) — = 5.5V Page mode CC (Note 3) 2011 Microchip Technology Inc. ...
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... FIGURE 1-2: BUS TIMING DATA 5 SCL 7 3 SDA SDA Out 2011 Microchip Technology Inc MCP7940X DS25009A-page 5 ...
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... Pin Name Pin Function Vss Ground SDA Bidirectional Serial Data SCL Serial Clock X1 Xtal Input, External Oscillator Input X2 Xtal Output V Battery Backup Input (3V Typ) BAT MFP Multi Function Pin Vcc +1.8V to +5.5V Power Supply DS25009A-page 6 Table 2-1. 2011 Microchip Technology Inc. ...
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... SCL SDA Start Condition 2011 Microchip Technology Inc. 3.1.1.4 Data Valid (D) The state of the data line represents valid data when, after a Start condition, the data line is stable for the duration of the high period of the clock signal. The data on the line must be changed during the low period of the clock signal ...
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... ADDRESS BYTE R/W X • • • Data from transmitter Receiver must release the SDA line at this point so the Transmitter can continue sending data. (Figure 3-3). The upper address bits are Upon receiving an ‘1010111’ • • • 0 2011 Microchip Technology Inc. or ...
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... See Figure 3-4 for the flow diagram. FIGURE 3-4: ACKNOWLEDGE POLLING FLOW Send ID Write Command Send Stop Condition to Initiate ID Write Cycle Send Start Send Control Byte with R Did Device Acknowledge (ACK = 0)? YES Next Operation 2011 Microchip Technology Inc. NO MCP7940X DS25009A-page 9 ...
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... Date 01-31 01h Month 01-12 01h Reserved 01h Seconds 00-59 00h Minutes 00-59 00h Hours 1-12 + AM/PM 00h 00-23 Day 1-7 01h Date 01-31 01h Month 01-12 01h Reserved 01h 00h 00h 00h 00h 2011 Microchip Technology Inc. ...
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... Contains the BCD month. Bit 4 contains the 10 month. Bit 5 is the Leap Year bit, which is set during a leap year and is read-only. 0x06h – Contains the BCD year and 10 year. The Range is 00-99. 0x07h – Is the Control register. 2011 Microchip Technology Inc. Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ...
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... After the byte or page write to these locations, the write sequence is initiated by the Stop condition. At this time, the ID locations are locked and no further writes are possible to this location unless a complete unlock sequence is repeated. fails CC bit is BAT These DD bit is cleared in 2011 Microchip Technology Inc. ...
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... The frequencies listed in the table presume an input clock source of exactly 32.768 kHz. In terms of the equivalent number of input clock cycles, the table becomes: FIGURE 4-1: RS1 AND RS0 WITH AND WITHOUT CALIBRATION 2011 Microchip Technology Inc. RS2 RS1 With regards to the calibration function, the Calibration register setting has no impact upon the MFP output clock signal when bits RS1 and RS0 are set to ‘ ...
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... BAT mode BAT mode, other modes are suspended. pin BAT DD supply. The BAT Read/Write Powered Access By < BAT BAT < V Yes V CC BAT CC > V Yes V CC BAT CC 2011 Microchip Technology Inc. ...
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... The second set of registers, located at 0x1Ch through 0x1Fh, are loaded at the time when V is restored and the RTCC switches to V The power-fail time-stamp registers are cleared when the V bit is cleared in software. BAT 2011 Microchip Technology Inc. voltage. To TRIP MCP7940X ...
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... CONTROL ADDRESS A BYTE BYTE ADDRESS BYTE DATA BYTE Note: Entering an address past 5F for an SRAM operation will result in the MCP7940X not acknowledging the address. . BAT supply is present and BAT supply for retention. BAT S T DATA DATA BYTE 2011 Microchip Technology Inc. ...
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... After a Byte Write command, the internal address counter will point to the address location following the one that was just written. Note: Addressing undefined ID locations will result in the MCP7940X not acknowledg- ing the address. 2011 Microchip Technology Inc. MCP7940X MCP7940X DS25009A-page 17 ...
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... This Address Pointer allows the entire memory contents to be serially read during one operation. The internal Address Pointer will automatically roll over to the start of the Block. S DATA T BYTE O P • • • DATA (Figure 5-6). After a random read 2011 Microchip Technology Inc. ...
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... The unique ID area is protected to prevent unintended writes to these locations. The unlock sequence is detailed in 4.2.1 “Unlock Sequence”. The unique ID can be factory programmed on some devices to provide a unique IEEE EUI-48 or EUI-64 value. In addition, customer-provided codes can also be programmed. 2011 Microchip Technology Inc ADDRESS CONTROL A BYTE BYTE R ...
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... DS25009A-page 20 Example: 79400I Example: Example: Example: 1st Line Marking Codes TSSOP MSOP TDFN 9400 79400T AAS 9401 79401T AAT 9402 79402T AAU 1109 13F 9400 I109 13F 79401I 10913F AAS 109 2011 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP7940X DS25009A-page 21 ...
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... MCP7940X DS25009A-page 22 2011 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP7940X DS25009A-page 23 ...
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... MCP7940X D N NOTE DS25009A-page φ L 2011 Microchip Technology Inc. ...
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... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2011 Microchip Technology Inc. MCP7940X DS25009A-page 25 ...
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... MCP7940X D N NOTE DS25009A-page φ L 2011 Microchip Technology Inc. ...
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... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2011 Microchip Technology Inc. MCP7940X DS25009A-page 27 ...
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... MCP7940X DS25009A-page 28 2011 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP7940X DS25009A-page 29 ...
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... MCP7940X DS25009A-page 30 2011 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (04/2011) Original release of this document. 2011 Microchip Technology Inc. MCP7940X DS25009A-page 31 ...
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... MCP7940X NOTES: DS25009A-page 32 2011 Microchip Technology Inc. ...
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... To register, access the Microchip web site at www.microchip.com. Under “Support”, “Customer Change Notification” and follow the registration instructions. 2011 Microchip Technology Inc. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • Local Sales Office ...
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... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS25009A-page 34 FAX: (______) _________ - _________ N Total Pages Sent ________ Literature Number: DS25009A 2011 Microchip Technology Inc. ...
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... PART NO. X /XX Device Temperature Package Range Device: MCP79400 = 1.8V - 5.5V I MCP79400T = 1.8V - 5.5V I (Tape and Ree) MCP79401 = 1.8V - 5.5V I MCP79401T = 1.8V - 5.5V I (Tape and Reel) MCP79402 = 1.8V - 5.5V I MCP79402T = 1.8V - 5.5V I (Tape and Reel) Temperature I = -40°C to +85°C Range: Package 8-Lead Plastic Small Outline (3 ...
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... MCP7940X NOTES: DS25009A-page 36 2011 Microchip Technology Inc. ...
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... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-6578-300 Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-213-7830 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 2011 Microchip Technology Inc. 02/18/11 ...