MCP9801-M/MSG Microchip Technology, MCP9801-M/MSG Datasheet - Page 12

• Manufacturer Part Number: MCP9801-M/MSG
• Description: IC SENSOR THERMAL 2.7V 8MSOP
• Manufacturer: Microchip Technology

Specifications of MCP9801-M/MSG

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -55°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Temperature Threshold: Programmable
• Full Temp Accuracy: 3 C
• Digital Output - Bus Interface: I2C, SMBus
• Digital Output - Number Of Bits: 9 bit to 12 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Description/function: Lead Free Package Analog
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Supply Current: 400 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP9800/1/2/3
FIGURE 4-1:
4.1.5
After the Start condition, each bit of data in
transmission needs to be settled for a time specified by
t
“Serial Interface Timing Specifications” on Page
DS21909D-page 12
SU-DATA
SDA
SCL
Start
before SCL toggles from low-to-high (see
DATA VALID
1
1
Address
Code
2
0
3
0 1 A2 A1 A0
Device Addressing.
Address Byte
4
5
Address
Slave
6
PIC18FXXXX Response
7
R/W
8
A
C
K
9
5).
4.1.6
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
t
the master. SDA also needs to remain pulled down for
t
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.
SU-DATA
H-DATA
after a high-to-low transition of SCL.
before the low-to-high transition of SCL from
ACKNOWLEDGE (ACK)
 2010 Microchip Technology Inc.