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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP9805T-BE/ST датащи(PDF) 1 Page - Microchip Technology |
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MCP9805T-BE/ST датащи(HTML) 1 Page - Microchip Technology |
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1 / 34 page  © 2005 Microchip Technology Inc. DS21977B-page 1 MCP9805 Features • Meets JEDEC Standard JC42.4 for Mobile Platform Memory Module Thermal Sensor • Temperature-to-Digital Converter • Accuracy with 0.25 °C/LSb Resolution: - ±1°C (max.) from +75°C to +95°C - ±2°C (max.) from +40°C to +125°C - ±3°C (max.) from -20°C to +125°C • Programmable Temperature Monitor Boundary • Critical Temperature Output • Operating Voltage Range: 3.0V to 3.6V • 2-wire Interface: SMBus/Standard mode I2C™ Compatible • Operating Current: 200 µA (typ.) • Shutdown Current: 0.1 µA (typ.) • Available Packages: 2x3 DFN-8, TSSOP-8 Typical Applications • Dual In-line Memory Module (DIMM) • Personal Computers (PCs) and Servers • Hard Disk Drives and Other PC Peripherals • General Purpose Temperature Sensor Typical Application Description Microchip Technology Inc.’s MCP9805 digital tempera- ture sensor converts temperatures between -40°C and +125°C to a digital word. This sensor is designed to meet the JEDEC standard JC42.4 for Mobile Platform Memory Module Thermal Sensor. This device provides an accuracy of ±1°C (max.) from a temperature range of +75°C to +95°C (active range) and ±2°C (max.) from +40°C to +125°C (monitor range) as defined in the JEDEC standard. The MCP9805 comes with user-programmable registers that provide flexibility for DIMM temperature-sensing applications. The registers allow user-selectable settings such as Shutdown or Low-Power modes and the specification of tempera- ture event and critical output boundaries. When the temperature changes beyond the specified boundary limits, the MCP9805 outputs an Event signal. The user has the option of setting the Event output signal polarity as either an active-low or active-high comparator output for thermostat operation, or as a temperature event interrupt output for microprocessor-based systems. The Event output can also be configured as a critical temperature output. This sensor has a 2-wire industry-standard SMBus and Standard mode I2C compatible (100 kHz bus clock) serial interface protocol, allowing up to eight sen- sors to be controlled in a single serial bus. These fea- tures make the MCP9805 ideal for sophisticated multi-zone temperature-monitoring applications. Package Types Memory Memory Module SPD* Temperature Sensor EEPROM MCP9805 3.3 VDD_SPD SDA SCLK R R Event * Serial Presence Detect SDA GND Event SCLK 8-Pin DFN (2x3) A0 VDD A1 A2 1 2 3 4 8 7 6 5 SDA GND Event SCLK MCP9805 1 2 3 4 8-Pin TSSOP A0 VDD A1 A2 8 7 6 5 Memory Module Digital Temperature Sensor |
Аналогичный номер детали - MCP9805T-BE/ST |
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Аналогичное описание - MCP9805T-BE/ST |
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