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SS8017 Datasheet(PDF) 1 Page - Silicon Standard Corp. |
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SS8017 Datasheet(HTML) 1 Page - Silicon Standard Corp. |
1 / 16 page www.SiliconStandard.com 1 of 16 Two Remote Temperature Sensors with SMBus Serial Interface and System Reset Features Description Two channels: measures both remote and local temperatures No calibration required SMBus 2-wire serial interface Programmable under/over-temperature alarms SMBus alert response supported Accuracy: ±1°C (+60°C to +100°C, remote) ±3°C (+60°C to + 100°C, local) Average supply current during conversion of 320µA (typ) Supply range of +3V to +5.5V Small 8-lead SO package Applications Desktop and Notebook Central Office Computers Telecom Equipment Smart Battery Packs Test and Measurement LAN Servers Multi-Chip Modules Industrial Controllers Packing type TR: Tape and reel SS8017XX Example: SS8017TR à SS8017 shipped in tape and reel Ordering Information The SS8017 contains a precise digital thermometer, a system-reset circuit, and a programmable thermal shutdown signal. The thermometer reports the temperature of two re- mote sensors. The remote sensors are di- ode-connected transistors, typically a low-cost, easily mounted 2N3904 NPN type which replaces conven- tional thermistors or thermocouples. Remote accuracy is ±5°C for multiple transistor manufacturers, with no calibration needed. The remote channel can also measure the die temperature of other ICs, such as mi- croprocessors, that contain an on-chip, di- ode-connected transistor. The 2-wire serial interface accepts standard System Management Bus (SMBus TM) Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data. The data format is 7 bits plus sign, with each bit corre- sponding to 1°C, in two’s-complement format. Meas- urements can be done automatically and autono- mously, with the conversion rate programmed by the user or programmed to operate in a single-shot mode. The adjustable rate allows the user to control the supply-current drain. SS8017 Rev.2.01 6/06/2003 |
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