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參數資料
| 型號： | MC74 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Serial Digital Temperature Sensor |
| 中文描述： | 串行數字溫度傳感器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 122K |
| 代理商： | MC74 |
Semiconductor Components Industries, LLC, 1999
February, 2000 – Rev. 0
1
Publication Order Number:
MC74/D
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/I
2
C–compatible serial port. Temperature resolution is 1
°
C.
Conversion rate is a nominal 8 samples/sec. Power consumption is
only 200
μ
A (5
μ
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
Internal Sensor
(Diode)
Serial Port
Interface
SDA
SCL
Control
Logic
Modulator
Temperature
Register
SOT–23–5
SN SUFFIX
CASE TBD
PRELIMINARY INFORMATION
http://onsemi.com
Device
Package
Voltage
ORDERING INFORMATION
MC74A5–33SNTR
SOT–23–5
3.3V VDD
1
3
SCL
NC
SOT–23–5*
NOTE: *SOT–23–5 is equivalent to EIAJ–SC74A
2
GND
VDD
4
SDA
5
MC74A5–50T
TO–220–5
5.0V VDD
PIN CONFIGURATION
(Top View)
TO–220–5
T SUFFIX
CASE TBD
PRELIMINARY INFORMATION
1
5
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