SE98TK-T NXP Semiconductors, SE98TK-T Datasheet - Page 5

• Manufacturer Part Number: SE98TK-T
• Description: Board Mount Temperature Sensors I2C LOCAL +/- 2OC TS DIMM
• Manufacturer: NXP Semiconductors

Specifications of SE98TK-T

• Temperature Threshold: + 6 C
• Full Temp Accuracy: +/- 4 C
• Package / Case: SOT-908
• Digital Output - Bus Interface: 2-Wire, I2C
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 20 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SE98TK,118

NXP Semiconductors
7. Functional description
SE98_4
Product data sheet
7.1 Serial bus interface
7.2 Slave address
The SE98 uses the 2-wire serial bus (I
controller. The serial bus consists of a clock (SCL) and data (SDA) signals. The device
can operate on either the I
Standard-mode is defined to have bus speeds from 0 Hz to 100 kHz, I
from 0 Hz to 400 kHz, and the SMBus is from 10 kHz to 100 kHz. The host or bus master
generates the SCL signal, and the SE98 uses the SCL signal to receive or send data on
the SDA line. Data transfer is serial, bidirectional, and is one bit at a time with the Most
Significant Bit (MSB) transferred first, and a complete I
and SDA are open-drain, pull-up resistors must be installed on these pins.
The SE98 uses a 4-bit fixed and 3-bit programmable (A0, A1 and A2) 7-bit slave address
that allows a total of eight devices to co-exist on the same bus. The input of each pin is
sampled at the start of each I
address is 0011.
Fig 4.
Slave address
Rev. 04 — 2 February 2009
2
C-bus Standard/Fast mode or SMBus. The I
2
MSB
C-bus/SMBus access. The temperature sensor’s fixed
0
0
fixed
slave address
2
1
C-bus/SMBus) to communicate with a host
1
A2
DDR memory module temp sensor, 3.3 V
selectable
hardware
A1
LSB
002aab304
A0
2
C-bus data is 1 byte. Since SCL
R/W
X
2
C-bus Fast-mode
© NXP B.V. 2009. All rights reserved.
2
C-bus
SE98
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