EMC1428-1-AP-TR SMSC, EMC1428-1-AP-TR Datasheet - Page 14

• Manufacturer Part Number: EMC1428-1-AP-TR
• Description: Board Mount Temperature Sensors Octal Temp Sensor
• Manufacturer: SMSC

Specifications of EMC1428-1-AP-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

APPLICATION NOTE: The ARA does not clear the Status Register and if the MASK bit is cleared prior to the Status
Revision 0.69 (06-29-09)
3.7
3.8
SMBus Address
SMBus Timeout
The EMC1428 will respond to the ARA in the following way:
1. Send Slave Address and verify that full slave address was sent (i.e. the SMBus communication
2. Set the MASK bit to clear the ALERT pin.
The EMC1428-1 devices respond to the 7-bit slave address 1001_100xb.
The EMC1428-6 will respond to the 7-bit slave address 1001_101xb.
The EMC1428-7 slave address is determined at power up via the pull-up resistor on the SYS_SHDN
pin as shown in
Note: Other addresses are available. Contact SMSC for more information.
The EMC1428 support SMBus Timeout. If the clock line is held low for longer than 30ms, the device
will reset its SMBus protocol. This function can be enabled by setting the TIMEOUT bit in the
Consecutive Alert Register (see
from the device was not prematurely stopped due to a bus contention event).
Register being cleared, the ALERT pin will be reasserted.
Table 3.7 Address Select Decode on SYS_SHDN Pin
Table
3.7.
4.7k Ohm ±5%
6.8k Ohm ±5%
10k Ohm ±5%
15k Ohm ±5%
22k Ohm ±5%
33k Ohm ±5%
RESISTOR
PULL UP
1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones
Section
DATASHEET
5.14).
14
1001_000xb
1001_001xb
1001_010xb
1001_011xb
1001_100xb
1001_101xb
ADDRESS
SMBUS
SMSC EMC1428
Datasheet