器件名称: MC74A5-50T
功能描述: Serial Digital Temperature Sensor
文件大小: 122.45KB 共12页
简 介:MC74 Serial Digital Temperature Sensor
The MC74 is a serial digital temperature sensor suited for low cost applications. Temperature data is converted from the integrated thermal sensing element and made available as an 8–bit serial digital word. Communication with the MC74 is accomplished via 2–wire SMBus/I2C–compatible serial port. Temperature resolution is 1°C. Conversion rate is a nominal 8 samples/sec. Power consumption is only 200 A (5 A Standby). Features Tested Operating Temperature Range: –40°C to +125°C Simple Serial Port Interface Solid State Temperature Sensing: ±2°C Accuracy from +25°C to +85°C ±3°C Accuracy from 0°C to +125°C 3.3V and 5.5V Versions Typical Applications Thermal Protection for Hard Disk Drives and Other PC Peripherals Low–Cost Thermostat Controls Power Supplies
FUNCTIONAL BLOCK DIAGRAM
VDD Internal Sensor (Diode) Serial Port Interface SDA SCL 3 4 SCL
http://onsemi.com
SOT–23–5 SN SUFFIX CASE TBD PRELIMINARY INFORMATION
PIN CONFIGURATION (Top View)
1 2 5 SDA
NC GND
SOT–23–5*
NOTE: *SOT–23–5 is equivalent to EIAJ–SC74A
DS Modulator
Control Logic
Temperature Register
1 5 TO–220–5 T SUFFIX CASE TBD PRELIMINARY INFORMATION
ORDERING INFORMATION
Device MC74A5–33SNTR MC74A5–50T Package SOT–23–5 TO–220–5 Voltage 3.3V VDD 5.0V VDD
Semiconductor Components Industries, LLC, 1999
1
February, 2000 – Rev. 0
Publication Order Number: MC74/D
MC74
Pin No. 1 2 3 4 5 Symbol NC Type Description No……
