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MCP9804-E/MS датащи(PDF) 14 Page - Microchip Technology

номер детали MCP9804-E/MS
подробное описание детали  짹0.25째C Typ. Accuracy Digital Temperature Sensor
PDF  54 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP9804-E/MS датащи(HTML) 14 Page - Microchip Technology

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MCP9804
DS22203A-page 14
© 2009 Microchip Technology Inc.
4.1.5
DATA VALID
After
the
Start
condition,
each
bit
of
data
in
transmission needs to be settled for a time specified by
tSU-DATA before SCL toggles from low-to-high (see the
Sensor Serial Interface Timing Specifications section).
4.1.6
ACKNOWLEDGE (ACK/NAK)
Each receiving device, when addressed, is obliged to
generate an ACK bit after the reception of each byte.
The master device must generate an extra clock pulse
for ACK to be recognized.
The acknowledging device pulls down the SDA line for
tSU-DATA before the low-to-high transition of SCL from
the master. SDA also needs to remain pulled down for
tH-DATA after a high-to-low transition of SCL.
During read, the master must signal an End-of-Data
(EOD) to the slave by not generating an ACK bit (NAK)
once the last bit has been clocked out of the slave. In
this case, the slave will leave the data line released to
enable the master to generate the Stop condition.
4.1.7
TIME OUT
If the SCL stays low or high for the time specified by
tOUT, the MCP9804 temperature sensor resets the
serial interface. This dictates the minimum clock speed
as specified in the specification.



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