MCP98243-BE/MNY MICROCHIP [Microchip Technology], MCP98243-BE/MNY Datasheet
MCP98243-BE/MNY
Related parts for MCP98243-BE/MNY
MCP98243-BE/MNY Summary of contents
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... Event boundaries. When the temperature changes beyond the specified Event boundary limits, the MCP98243 outputs an Alert signal at the Event pin. The user has the option of setting the temperature Event output signal polarity as either an active-low or active-high comparator output for thermostat operation temperature Event interrupt output for microprocessor-based systems ...
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... Note: This accuracy data from the production system represents the typical accuracy performance of the MCP98242 Memory Module Temperature Sensor. The MCP98242 production methodology is also used for the MCP98243 to achieve the same typical accuracy performance. MCP98243 VS. MCP98242 Feature Event Output in Shutdown Mode ...
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... V Resistor) — — Resistor) — 0.7 — s Time to 63% (89°C) — 1.4 — s MCP98243 Conditions 2 C Bus Inactive voltage DD = 2. 3.3V+150 MHz (Active-Low, Pull-up Resistor (Active-Low, Pull-up Resistor (Active-High, Pull-down (Active-High, Pull-down ...
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... MCP98243 EEPROM DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, V and T = -20°C to +125°C. A Parameters Sym Power Supply Operating Voltage Range V Current, EEPROM write I DD_EE Current, EEPROM read I DD_EE Power On Reset (POR) V POR_EE Write Cycle time (byte/page Endurance T = +25°C — ...
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... IH MIN 2 , the temperature sensor I C interface will time out. A Repeat Start command 2 C-bus system, but the requirement t HD:DAT MIN to avoid unintended generation of Start or Stop F MAX , the temperature sensor becomes partially POR_TS MCP98243 = Units Conditions kHz Note Note 2 ns Note 2 ...
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... MCP98243 TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, V the Temperature Sensor, and GND = Ground. Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 8L-DFN Thermal Resistance, 8L-TDFN Thermal Resistance, 8L-TSSOP Thermal Resistance, 8L-UDFN ...
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... EEPROM Read (Sensor in Shutdown Mode) 1 -40 100 120 FIGURE 2-4: Temperature -40 -20 FIGURE 2-5: Temperature. 3 2.5 2 1.5 1 0.5 0 -40 -20 FIGURE 2-6: Voltage vs. Temperature. MCP98243 , and DD - 100 120 T (°C) A Supply Current vs. = 3. 100 120 T (°C) A Serial Bus Time-Out vs. V POR_TS ...
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... MCP98243 Note: Unless otherwise indicated -40°C to +125° Event ( 0.3 0.2 SDA V OL 0.1 Event -40 - (°C) A FIGURE 2-7: Event and SDA V Temperature. 125 110 -40 - (°C) A FIGURE 2-8: Conversion Rate vs. ...
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... T (° FIGURE 2-14: Shutdown Current vs. Temperature. © 2009 Microchip Technology Inc. = 2.7V to 5.5V, GND = Ground, SDA/SCL pulled- 100 for Pins 1V 4.5 5.0 5.5 1.5 FIGURE 2-15: 100 120 MCP98243 , and Sensor in Shutdown Mode POR_TS T = -40° +25° +85° +125°C A 2.0 2.5 3.0 3.5 4.0 4.5 5 ...
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... MCP98243 NOTES: DS22153B-page 10 © 2009 Microchip Technology Inc. ...
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... Section 4.0 “Serial Communication”). Table 3-2. 3.5 Temperature Alert, Open-Drain Output (Event) Slave Address The MCP98243 temperature Event output pin open-drain output. The device outputs a signal when the ambient temperature goes beyond the user-pro- grammed temperature limit. (see Section 5.2.3 “Event X ...
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... MCP98243 NOTES: DS22153B-page 12 © 2009 Microchip Technology Inc. ...
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... The bus is controlled by a master device (typically a microcontroller) that controls the bus access and generates the Start and Stop conditions. The MCP98243 is a slave device and does not control other devices in the bus. Both master and slave devices can operate as either transmitter or receiver. However, the master device determines which mode is activated ...
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... TIME OUT (MCP98243, SENSOR ONLY) If the SCL stays low or high for time specified by t the MCP98243 temperature sensor resets the serial interface. This dictates the minimum clock speed as specified in the specification. However, the EEPROM does not reset the serial interface. Therefore, the master can hold the clock indefinitely to process data from the EEPROM ...
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... FUNCTIONAL DESCRIPTION The MCP98243 temperature sensors consists of a band-gap type temperature sensor, a Delta-Sigma Analog-to-Digital Converter (ΣΔ ADC), user-program- Temperature Sensor Hysteresis Shutdown Critical Trip Lock Alarm Win. Lock Bit Clear Event Event Status Output Control Critical Event only Event Polarity ...
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... Trip registers are read/writes. If temperature drifts beyond the user-specified limits, the MCP98243 outputs a signal using the Event pin (refer to Section 5.2.3 “Event Output Configuration”). In addition, the Critical Temperature Trip register is used to provide an additional critical temperature limit. REGISTER 5-1: REGISTER POINTER (WRITE ONLY) ...
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... T T SIGN 2 UPPER A LOWER °C 2 °C 2 ° MCP98243 Range Accuracy Event 0 Hysteresis SHDN Evt Sel Evt Pol Evt Mod °C 2 °C 2 °C 2 ° °C 2 ° ...
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... CAPABILITY REGISTER This is a read-only register used to identify the temperature sensor capability. In this case, the MCP98243 is capable of providing temperature at 0.25°C resolution, measuring temperature below and above 0°C, providing ±1°C and ±2°C accuracy over the active and monitor temperature ranges (respectively) and providing user-programmable temperature event boundary trip limits ...
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... K K Capability Pointer MCP98243 MSB Data Master MCP98243 MCP98243 /T /T registers) and a LOWER CRIT LSB Data Master DS22153B-page 19 ...
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... MCP98243 5.1.2 SENSOR CONFIGURATION REGISTER (CONFIG) The MCP98243 has a 16-bit Configuration register (CONFIG) that allows the user to set various functions for a robust temperature monitoring system. Bits 10 thru 0 are used to select Event output boundary hysteresis, device Shutdown or Low-Power mode, temperature boundary and critical temperature lock, temperature Event output enable/disable ...
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... Window Lock Bit (Win. Lock): and T registers can be written. (power-up default) LOWER and T registers can not be written LOWER , T and T (power-up default) UPPER LOWER CRIT and T temperature boundaries are disabled.) UPPER LOWER MCP98243 ‘0000 0001’b DS22153B-page 21 ...
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... START command //WRITE Command //also, make sure bit 0 is cleared ‘0’ // Write CONFIG Register // Write data // Write data // send STOP command LSB Data MCP98243 © 2009 Microchip Technology Inc. ...
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... Command //also, make sure bit 0 is set ‘1’ // READ 8 bits //and Send ACK bit // READ 8 bits //and Send NAK bit // send STOP command MCP98243 Note not necessary to select the register pointer if it was set from the previous read/write. ...
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... This data represents the maximum and minimum temperature boundary or temperature window that can be used to monitor ambient temperature. If this feature is enabled (Section 5.1.2 “Sensor Configuration Register (CONFIG)”) and the ambient temperature exceeds the specified boundary or window, the MCP98243 asserts an Event output. (Refer to Section 5.2.3 “Event Configuration”). ...
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... MCP98243 MCP98243 MSB Data Master MCP98243 MCP98243 LSB Data MCP98243 Note not necessary to select the register pointer if it was set from the previous read/write ...
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... AMBIENT TEMPERATURE REGISTER ( The MCP98243 uses a band gap temperature sensor circuit to output analog voltage proportional to absolute temperature. An internal ΔΣ ADC is used to convert the analog voltage to a digital word. The converter resolution is set to 0.25 °C + sign (11-bit data). The digital word is loaded to a 16-bit read-only Ambient ...
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... T //T A CRIT > T //T A UPPER < T //T A LOWER //Clear flag bits < 0°C //T A //Clear SIGN ≥ 0°C //T A //Temperature = Ambient Temperature (°C) MCP98243 BYTES TO TEMPERATURE CONVERSION × 4 × 4 – LowerByte – ( × × ) – UpperByte 2 + LowerByte 2 = Ambient Temperature (°C) ...
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... MSB Data Master MCP98243 Note not necessary to select the register pointer if it was set from the previous read/write ...
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... MANUFACTURER ID REGISTER This register is used to identify the manufacturer of the device in order to perform manufacturer specific operation. The Manufacturer ID for the MCP98243 is 0x0054 (hexadecimal). MANUFACTURER ID REGISTER (READ-ONLY) → ADDRESS REGISTER 5-6: R-0 R-0 R-0 bit 15 R-0 R-1 R-0 bit 7 Legend Readable bit W = Writable bit -n = Value at POR ‘1’ = Bit is set ...
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... The upper byte of this register is used to specify the device identification and the lower byte is used to specify device revision. The device ID for the MCP98243 is 0x21 (hex). The revision begins with 0x01 (hex) for the first release, with the number being incremented as revised versions are released. DEVICE ID AND DEVICE REVISION (READ-ONLY) → ...
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... Resolution Pointer MCP98243 MCP98243 Resolution to 0.0625°C <0000 0011>b (See A MCP98243 U-0 R/W-0 R/W-0 — Resolution bit Bit is unknown Data MCP98243 DS22153B-page 31 ...
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... When this feature is selected, the Event output becomes a comparator output. In this mode, the interrupt output configuration (bit 0 of CONFIG) is ignored. Figure 5-12 for MCP98243 Active-High Event Output V DD MCP98243 R PU Active-Low Event Output and T registers. The bits LOWER CRIT © 2009 Microchip Technology Inc. ...
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... Event output. This mode is designed for interrupt driven microcontroller based systems. The microcontroller receiving the interrupt will have to acknowledge the interrupt by setting bit 5 of CONFIG register from the MCP98243. © 2009 Microchip Technology Inc. 5.2.4 TEMPERATURE RESOLUTION The MCP98243 is capable of providing a temperature data with 0.5° ...
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... MCP98243 T CRIT T UPPER LOWER Comparator Interrupt S/w Int. Clear Critical Only Comparator Interrupt S/w Int. Clear Critical Only Note: 1 TABLE 5-9: Event Output Boundary Note Conditions ≥ LOWER < LOWER HYST > UPPER ≤ UPPER HYST ≥ ...
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... EEPROM FEATURE DESCRIPTION 5.3.1 BYTE WRITE To write a byte in the MCP98243 EEPROM, the master has to specify the memory location or address. Once the address byte is transmitted correctly followed by a word address, the word address is stored in the EEPROM address pointer. The following byte is data to be stored in the specified memory location. ...
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... MCP98243 5.3.2 PAGE WRITE The write Address Byte, word address and the first data byte are transmitted to the MCP98243 in the same way byte write. Instead of generating a Stop condition, the master transmits additional data bytes to the MCP98243, which are temporarily stored ...
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... WRITE PROTECTION The MCP98243 has a Software Write-Protect (SWP) feature that allows the lower half array (addresses 00h - 7Fh write-protected or permanently write- protected (PWP). The write protected area can be cleared by sending Clear Write Protect (CWP) command. However, once the PWP is executed the protected memory can not be cleared ...
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... A1 pin, connect A2 pin to GND to initiate CWP cycle. DD 5-3. Both A2 and A1 pins are grounded Table Data MCP98243 and the corresponding slave DD Table 5-4 and ...
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... Word Address MCP98243 MCP98243 must be within the range of GND MCP98243 Figure 2-13 voltage levels not applied on the A0 HV Table 5- Data MCP98243 + 1V to execute PWP. DD DS22153B-page 39 ...
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... Therefore, if the previous access (either a read or write operation) was to address , the next current address read operation n would access data from address . Upon receipt of n+1 the slave address with R/W bit set to ‘1’, the MCP98243 issues an acknowledge and transmits the 8-bit data 1 2 SCL SDA S 1 ...
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... Microchip Technology Inc. set. The master then issues the Address Byte again, but with the R/W bit set to a ‘1’. The MCP98243 then issues an acknowledge and transmits the 8-bit data word. The master will not acknowledge the transfer but ...
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... Sequential reads are initiated in the same way as a random read, with the exception that after the MCP98243 transmits the first data byte, the master issues an acknowledge, as opposed to a stop condition in a random read. This directs the MCP98243 to transmit the next sequentially addressed 8-bit word (Figure 5-21). ...
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... Summary of Power-on Default The MCP98243 has an internal Power-on Reset (POR) circuit. If the power supply voltage the V and V thresholds, the device POR_TS POR_EE resets the registers to the power-on default settings. Table 5-6 shows the power-on default summary for the temperature sensor. The EEPROM resets the address pointer to 0x00 hex ...
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... MCP98243 NOTES: DS22153B-page 44 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. 6.2 Thermal Considerations A potential for self-heating errors can exist if the MCP98243 SDA, SCLK and Event lines are heavily loaded with pull-ups (high current). Typically, the self- heating error is negligible because of the relatively small current consumption of the MCP98243. A temperature accuracy error of approximately 0.5° ...
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... MCP98243 NOTES: DS22153B-page 46 © 2009 Microchip Technology Inc. ...
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... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2009 Microchip Technology Inc. MCP98243 : Example ABZ 934 25 ...
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... MCP98243 D N NOTE TOP VIEW A3 DS22153B-page EXPOSED PAD BOTTOM VIEW A NOTE NOTE © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP98243 DS22153B-page 49 ...
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... MCP98243 DS22153B-page 50 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP98243 DS22153B-page 51 ...
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... MCP98243 DS22153B-page 52 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP98243 DS22153B-page 53 ...
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... MCP98243 D N NOTE DS22153B-page φ L © 2009 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 © 2009 Microchip Technology Inc. MCP98243 DS22153B-page 55 ...
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... MCP98243 NOTES: DS22153B-page 56 © 2009 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision B (October 2009) The following is the list of modifications: 1. Added MCP98243 vs MCP98242 comparison table. 2. Added EEPROM Write temperature Range Changed I C time out minimum specification to 25 ms. 4. Replaced Figure 2-5. 5. Updated bits 7 and 6 of Register 5-2: Capability Register. 6. Updated Device/Revision ID register. ...
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... MCP98243 NOTES: DS22153B-page 58 © 2009 Microchip Technology Inc. ...
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... MCP98243-BE/MC: Extended Temp., 8LD DFN pkg. MCP98243T-BE/MC: Tape and Reel, Extended Temp., 8LD DFN pkg. MCP98243-BE/ST: Extended Temp., 8LD TSSOP pkg. MCP98243T-BE/ST: Tape and Reel, Extended Temp., 8LD TSSOP pkg. MCP98243T-BE/MNY:Tape and Reel, Extended Temp., 8LD TDFN (nickel palladium gold) pkg. ...
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... MCP98243 NOTES: DS22153B-page 60 © 2009 Microchip Technology Inc. ...
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Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...
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