Datenblatt-pdf.com


MC74 Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer MC74
Beschreibung Serial Digital Temperature Sensor
Hersteller ON Semiconductor
Logo ON Semiconductor Logo 




Gesamt 12 Seiten
MC74 Datasheet, Funktion
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 µA (5.0 µA Standby).
Features
Temperature Range: –40°C to +125°C
Outputs Temperature as an 8–Bit Digital Word
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
3.3 V and 5.5 V Operating Range
Low Power
200 µA Operations
5.0 µA Standby Mode
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
DS Modulator
Control
Logic
Temperature
Register
SDA
SCL
http://onsemi.com
5
1
2
3
4
SOT–23
SN SUFFIX
CASE 1212
1
5
TO–220
T SUFFIX
CASE 314D
PIN CONNECTIONS
NC 1
5 SDA
GND 2
VDD 3
4 SCL
(Top View)
SOT–23A*
NOTE: *SOT–23A is equivalent to EIAJ–SC74A
ORDERING INFORMATION
See detailed ordering and shipping information on page 9 of
this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2000
November, 2000 – Rev. 1
1
Publication Order Number:
MC74/D






MC74 Datasheet, Funktion
SMBUS Write Timing Diagram
SCL
AB
ILOW IHIGH
C
MC74
D EF
G
H IJ K L M
SDA
t SU(START) t H(START)
t SU–DATA
t H–DATA
t SU(STOP) t IDLE
A = Start Condition
B = MSB of Address Clocked into Slave
C = LSB of Address Clocked into Slave
D = R/W Bit Clocked into Slave
E = Slave Pulls SDA Line Low
F = Acknowledge Bit Clocked into Master J = Acknowledge Clocked into Master
G = MSB of Data Clocked into Slave
K = Acknowledge Clock Pulse
H = LSB of Data Clocked into Slave
L = Stop Condition, Data Executed by Slave
I = Slave Pulls SDA Line Low
M= New Start Condition
SMBUS Read Timing Diagram
AB
ILOW IHIGH
C
SCL
D EF
G
HI
JK
SDA
t SU(START) t H(START)
t SU–DATA
A = Start Condition
B = MSB of Address Clocked into Slave
C = LSB of Address Clocked into Slave
D = R/W Bit Clocked into Slave
E = Slave Pulls SDA Line Low
F = Acknowledge Bit Clocked into Master
G = MSB of Data Clocked into Master
H = LSB of Data Clocked into Master
Figure 2. Timing Diagrams
t SU(STOP) t IDLE
I = Acknowledge Clock Pulse
J = Stop Condition
K = New Start Condition
http://onsemi.com
6

6 Page









MC74 pdf, datenblatt
MC74
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold
SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable
attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
NORTH AMERICA Literature Fulfillment:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada
Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada
Fax Response Line: 303–675–2167 or 800–344–3810 Toll Free USA/Canada
N. American Technical Support: 800–282–9855 Toll Free USA/Canada
EUROPE: LDC for ON Semiconductor – European Support
German Phone: (+1) 303–308–7140 (Mon–Fri 2:30pm to 7:00pm CET)
Email: ONlit–[email protected]
French Phone: (+1) 303–308–7141 (Mon–Fri 2:00pm to 7:00pm CET)
Email: ONlit–[email protected]
English Phone: (+1) 303–308–7142 (Mon–Fri 12:00pm to 5:00pm GMT)
EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781
*Available from Germany, France, Italy, UK, Ireland
CENTRAL/SOUTH AMERICA:
Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST)
Email: ONlit–[email protected]
Toll–Free from Mexico: Dial 01–800–288–2872 for Access –
then Dial 866–297–9322
ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support
Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)
Toll Free from Hong Kong & Singapore:
001–800–4422–3781
Email: ONlit–[email protected]
JAPAN: ON Semiconductor, Japan Customer Focus Center
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031
Phone: 81–3–5740–2700
ON Semiconductor Website: http://onsemi.com
For additional information, please contact your local
Sales Representative.
http://onsemi.com
12
MC74/D

12 Page





SeitenGesamt 12 Seiten
PDF Download[ MC74 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
MC7003FDiode ( Rectifier )American Microsemiconductor
American Microsemiconductor
MC7005FDiode ( Rectifier )American Microsemiconductor
American Microsemiconductor
MC7006FDiode ( Rectifier )American Microsemiconductor
American Microsemiconductor
MC705C8ACFNR268HC705C8A Technical Data BookMotorola Semiconductors
Motorola Semiconductors
MC705P6AMicrocontrollersMotorola Semiconductors
Motorola Semiconductors

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche