MCP98242T-BE/MC Microchip Technology, MCP98242T-BE/MC Datasheet
MCP98242T-BE/MC
Specifications of MCP98242T-BE/MC
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MCP98242T-BE/MC Summary of contents
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... Sensor • 256 Byte EEPROM for SPD 3.3V _ SDA SCL DD SPD © 2009 Microchip Technology Inc. MCP98242 Description Microchip Technology temperature sensor converts temperature from -40°C and +125° digital word. This sensor meets JEDEC Specification JC42.4 Mobile Platform Memory Module Thermal Sensor Component. It provides an accuracy of ± ...
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... MCP98242 NOTES: DS21996C-page 2 © 2009 Microchip Technology Inc. ...
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... RES Note 1: Characterized but not production tested. © 2009 Microchip Technology Inc. †Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...
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... A T -65 — +150 A θ — 84.5 — JA θ — 41 — JA θ — 139 — exceed Maximum Junction Temperature (+150°C). J Conditions V V µ µ 0. OUTPUT time Units Conditions °C (Note 1) °C °C °C/W °C/W °C/W © 2009 Microchip Technology Inc. ...
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... SU-START Start Condition Hold Time t H-START Stop Condition Setup Time t SU-STOP Bus Idle t B_FREE Time Out t OUT TIMING DIAGRAM Start Condition © 2009 Microchip Technology Inc. = 3.0V to 3.6V, GND = Ground Min Typ Max Units 10 — 100 kHz SC 4.7 — — µs 4.0 — ...
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... MCP98242 NOTES: DS21996C-page 6 © 2009 Microchip Technology Inc. ...
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... Temperature Accuracy (°C) FIGURE 2-3: Temperature Accuracy Histogram +75°C. A © 2009 Microchip Technology Inc. = 3.0V to 3.6V, GND = Ground, SDA/SCL pulled- 10000 1000 EEPROM Write (Sensor in Shutdown Mode) 100 Sensor (EEPROM Inactive) 10 EEPROM Read (Sensor in Shutdown Mode) 1 100 120 ...
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... FIGURE 2-12: Response. , and DD = 3.0V to 3.6V = 0.6V - 100 120 T (°C) A SDA IOL vs. Temperature. = 3.0V Δ°C/ΔV = 0.4°C 3.6V - 100 120 T (°C) A Temperature Accuracy vs. TSSOP-8 DFN-8 22°C (Air) to 125°C (Oil bath Time (s) Package Thermal © 2009 Microchip Technology Inc. ...
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... Serial Data Line (SDA) SDA is a bidirectional input/output pin, used to serially transmit data to/from the host controller. This pin requires a pull-up resistor. (See Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc. Table 3-1. Pin Function Slave Address Slave Address ...
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... MCP98242 NOTES: DS21996C-page 10 © 2009 Microchip Technology Inc. ...
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... During normal data transfers, SDA only changes state while SCLK is low. © 2009 Microchip Technology Inc. 4.1.1 DATA TRANSFER Data transfers are initiated by a Start condition (START), followed by a 7-bit device address and a read/write bit ...
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... MCP98242 temperature sensor resets the serial interface. This dictates the minimum clock speed as specified in the SMBus specification. However, the EEPROM does not reset the serial interface. Therefore, the master can hold the clock indefinitely to process data from the EEPROM. , OUT © 2009 Microchip Technology Inc. ...
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... Selected Resolution Temp. Range Accuracy Output Feature Register Pointer Event FIGURE 5-1: Functional Block Diagram. © 2009 Microchip Technology Inc. registers and a 2-wire I serial interface. Figure 5-1 the register structure. EEPROM Band-Gap Temperature Sensor Address Decoder ΣΔ ADC 0.5°C/bit 0.25° ...
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... Register 5-1 describes the pointer or the address of the ambient each register. W-0 W-0 — Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared ) CRIT ) A W-0 W-0 W-0 Pointer Bits bit Bit is unknown ) UPPER ) LOWER © 2009 Microchip Technology Inc. ...
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... MSB CRIT A UPPER 3 2 LSB 2 °C 2 °C 0x06 MSB 0 0 LSB 0 1 0x07 MSB 0 0 LSB 0 0 0x08 LSB 0 0 © 2009 Microchip Technology Inc. Bit Assignment Resolution Int Clr Evt Stat Evt Cnt 7 0 SIGN 2 ° °C 2 °C 2 ° SIGN 2 ° ...
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... U-0 — — — R-0 R-1 R-1 Resolution Meas Range U = Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared /T UPPER LOWER © 2009 Microchip Technology Inc. U-0 U-0 — — bit 8 R-1 R-1 Accuracy Temp Alarm bit Bit is unknown /T registers) and a ...
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... SCLK SDA Address Byte MCP98242 SCLK A A SDA Address Byte FIGURE 5-2: Timing Diagram for Reading the Capability Register (See Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc Capability Pointer MCP98242 MSB Data Master MCP98242 MCP98242 LSB Data Master ...
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... U = Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared ): HYST sensor circuit stops converting , T and T UPPER LOWER CRIT described in Register 5-3 (see R/W-0 R/W-0 T SHDN HYST bit 8 R/W-0 R/W-0 Event Pol. Event Mod. bit Bit is unknown © 2009 Microchip Technology Inc. ...
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... Comparator output (power-up default Interrupt output This bit cannot be altered when either of the lock bits is set (bit 6 and bit 7). © 2009 Microchip Technology Inc. register can be written. (power-up default) Window Lock Bit (Win. Lock): and T registers can be written. (power-up default) LOWER ...
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... Section 4.0 “Serial Communication”). DS21996C-page Configuration Pointer MCP98242 MCP98242 MSB Data LSB Data MCP98242 Configuration Pointer MCP98242 MSB Data Master MCP98242 MCP98242 Note not necessary to select the register pointer if it was set from the previous read/write LSB Data Master © 2009 Microchip Technology Inc. ...
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... CRIT Temperature boundary trip data in two’s complement format. bit 1-0 Unimplemented: Read as ‘0’ Note: This table shows two 16-bit registers for T ‘0000 0011b’ and ‘0000 0100b’, respectively. © 2009 Microchip Technology Inc UPPER ) and a LOWER ) that CRIT ...
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... MSB Data MCP98242 Pointer UPPER MCP98242 MCP98242 MSB Data Master MCP98242 LSB Data MCP98242 Note not necessary to select the register pointer if it was set from the previous read/write LSB Data Master Register (See Section 4.0 UPPER © 2009 Microchip Technology Inc. ...
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... Data in 2’s complement format. Depending on the status of the Resolution Register (Register 5-8), A these bits may display 2 Note 1: Not affected by the status of the Event output configuration (bits CONFIG), Register 5-3. © 2009 Microchip Technology Inc. EQUATION 5-1: Where Ambient Temperature (°C) ...
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... Timing Diagram for Reading +25.25°C Temperature from the T Section 4.0 “Serial Communication”). DS21996C-page Pointer A MCP98242 MSB Data Master MCP98242 Note not necessary to select the register pointer if it was set from the previous read/write LSB Data Master Register (See A © 2009 Microchip Technology Inc. ...
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... SCLK A A SDA Address Byte FIGURE 5-6: Timing Diagram for Reading the Manufacturer ID Register (See Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc. R-0 R-0 Manufacturer ID R-1 R-0 Manufacturer Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared ...
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... Reading Device ID and Device Revision Register R-0 R-0 R-0 bit 8 R-0 R-0 R-1 bit Bit is unknown Note not necessary to select the register pointer if it was set from the previous read/write LSB Data Master (See Section 4.0 © 2009 Microchip Technology Inc. ...
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... A SDA Address Byte FIGURE 5-8: Timing Diagram for Changing T Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc. “Temperature U-0 U-0 — — Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared = 30 ms typical typical) CONV = 130 ms typical) CONV = 260 ms typical) ...
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... Capability register (Register 5-2). A 0.25°C resolution is set as POR default by factory. Figure 5-2 shows device must be operating in ; the T vs. CONV A boundary conditions need CRIT drifts above or below T A UPPER © 2009 Microchip Technology Inc. ...
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... LOWER HYST > UPPER ≤ UPPER HYST ≥ CRIT < CRIT HYST ≥ When T and T A CRIT CONFIG (Event output mode) is ignored. FIGURE 5-9: Event Output Condition. © 2009 Microchip Technology Inc. Samples/sec (typical UPPER HYST T -T LOWER HYST Event Output Comparator Interrupt < ...
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... SCLK A A SDA Address Byte FIGURE 5-10: Timing Diagram for Byte Write (See Section 4.0 “Serial Communication”). DS21996C-page 30 Figure Word Address MCP98242 MCP98242 Data MCP98242 © 2009 Microchip Technology Inc. ...
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... Data at (n) MCP98242 Note: FIGURE 5-11: Timing Diagram for Page Write (See Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc. Note: Page write operations are limited to writing bytes within a single physical page, regardless of the number of bytes actually being written. Physical page boundaries start at addresses that are integer multiples of the page buffer size (or ‘ ...
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... ACK X ACK ACK Address ACK NoACK X NoACK ACK Address ACK Table 5-3 Address Byte Slave Address R ACK Write Cycle X ACK Yes Data ACK Yes X NoACK No X ACK Yes X ACK Yes Data NoACK No X NoACK No Data NoACK No © 2009 Microchip Technology Inc. ...
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... A0 pin, apply V HI_WP FIGURE 5-13: Timing Diagram for Setting Clear Write Protect (See Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc. The Slave Address bits need to correspond to the address pin logic configuration. For SWP, a high voltage V HI_WP the corresponding slave address needs to be set to ‘1’, ...
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... A0 pin to execute PWP. The state of A2, A1, and A0 is user selectable. However, the address pin states need to match the slave address bits, as shown in Table 5-4 and Word Address MCP98242 MCP98242 is not applied on the A0 pin to execute PWP. HI_WP is not applied on the HI_WP Table 5- Data MCP98242 © 2009 Microchip Technology Inc. ...
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... R/W bit set to ‘1’, the MCP98242 issues an acknowledge and transmits the 8-bit data 1 2 SCLK SDA Note: FIGURE 5-15: Reading Current Word Address (See Section 4.0 “Serial Communication”). © 2009 Microchip Technology Inc. ACK Address ACK X NoACK X ACK X ACK X NoACK X word ...
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... The master will not acknowledge the transfer but does generate a stop condition and the MCP98242 discontinues transmission Word Address (n) MCP98242 MCP98242 Address Byte Data at (n) MCP98242 (Figure 5-16 Master © 2009 Microchip Technology Inc. ...
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... This would include any error conditions occurring, such as improper number of clock cycles or improper instruction byte as defined previously. © 2009 Microchip Technology Inc. To provide sequential reads, the MCP98242 contains an internal address pointer, which is incremented by one at the completion of each operation. This address pointer allows the entire memory contents to be serially read during one operation ...
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... Temperature event output Comparator mode Active-Low output Event and critical output Output disabled Event not asserted Interrupt cleared Event limits unlocked Critical limit unlocked Continuous conversion 0°C Hysteresis 0°C 0°C 0°C 0°C 0x0054 (hex) 0x2001 (hex) 0x01 (hex) © 2009 Microchip Technology Inc. ...
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... Temperature Sensor EEPROM FIGURE 6-2: Multiple Devices on DIMM SMBus. © 2009 Microchip Technology Inc. 6.2 Layout Considerations The MCP98242 does not require any additional components besides the master controller in order to measure temperature. However recommended that a decoupling capacitor of 0.1 µ µF be used between the V and GND pins ...
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... MCP98242 NOTES: DS21996C-page 40 © 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. MCP98242 : Example ABJ ...
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... MCP98242 DS21996C-page 42 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP98242 DS21996C-page 43 ...
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... MCP98242 DS21996C-page 44 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP98242 DS21996C-page 45 ...
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... MCP98242 DS21996C-page 46 I © 2009 Microchip Technology Inc. φ ...
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... Updated Figure 5-9. 7. Section 7.0 “Packaging Information”: Updated package outline drawings. Revision B (February 2008) The following is the list of modifications: 1. Added TDFN package throughout document. Revision A (September 2006) • Original Release of this Document. © 2009 Microchip Technology Inc. ID and MCP98242 DS21996C-page 43 ...
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... MCP98242 NOTES: DS21996C-page 44 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. Examples: /XXX a) Package MCP98242 . MCP98242-BE/MC: Extended Temp., 8LD DFN pkg. MCP98242T-BE/MC: Tape and Reel, Extended Temp., 8LD DFN pkg. MCP98242-BE/ST: Extended Temp., 8LD TSSOP pkg. MCP98242T-BE/ST: Tape and Reel, Extended Temp., 8LD TSSOP pkg. MCP98242-BE/MNY: Extended Temp., 8LD TDFN (nickel palladium gold) pkg ...
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... MCP98242 NOTES: DS21996C-page 46 © 2009 Microchip Technology Inc. ...
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... REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, 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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... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...