SA56004FDP,118(2013) 데이터 시트보기 (PDF) - NXP Semiconductors.

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SA56004FDP,118
(Rev.:2013)

SMBus-compatible, 8-pin, remote/local digital temperature sensor with overtemperature alarms

NXP Semiconductors. 

NXP Semiconductors

SA56004X

Digital temperature sensor with overtemperature alarms

7. Functional description

Refer to Figure 1 “Block diagram”.

7.1 Serial bus interface

The SA56004X should be connected to a compatible two-wire serial interface System

Management Bus (SMBus) as a slave device using the two device terminals SCLK and

SDATA. The ALERT pin can optionally be used with the SMBus protocol to implement the

ARA response. The controller provides a clock signal to the device SCLK pin and

write/read data to/from the device through the device SDATA pin. External pull-up

resistors, about 10 k each, are needed for these device pins due to open-drain circuitry.

Data of 8-bit digital byte or word are used for communication between the controller and

the device using SMBus 2.0 protocols which are described more in Section 7.10 “SMBus

interface”. The operation of the device to the bus is described with details in the following

sections.

7.2 Slave address

The SA56004X has a 7-bit slave address register which is factory programmed in OTP

memory. Eight unique devices are available with different slave addresses as defined in

Table 4. Up to eight devices can reside on the same SMBus without conflict, if their

addresses are unique.

Table 4. Slave addresses

Type number

Device slave address[1]

SA56004AD

1001 000

SA56004ADP

SA56004ATK

SA56004BD

1001 001

SA56004BDP

SA56004CD

1001 010

SA56004CDP

SA56004DD

1001 011

SA56004DDP

SA56004ED[2]

1001 100

SA56004EDP[2]

SA56004ETK[2]

SA56004FD

1001 101

SA56004FDP

SA56004GD

1001 110

SA56004GDP

SA56004HD

1001 111

SA56004HDP

[1] The device slave address is factory programmed in OTP device address register.

[2] The SA56004ED/EDP/ETK has the bus address of the National LM86, MAX6657/8 and the ADM1032.

SA56004X

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 7 — 25 February 2013

© NXP B.V. 2013. All rights reserved.

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