DS1624S Maxim Integrated Products, DS1624S Datasheet - Page 5
![IC THERM/EEPROM DIG 256BYT 8SOIC](/photos/6/58/65843/8-soic_21-0262_sml.jpg)
DS1624S
Manufacturer Part Number
DS1624S
Description
IC THERM/EEPROM DIG 256BYT 8SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1624S.pdf
(17 pages)
Specifications of DS1624S
Function
Thermometer, Thermostat
Topology
EEPROM, Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
2-Wire Serial
Output Alarm
No
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Full Temp Accuracy
+/- 0.5 C
Digital Output - Bus Interface
Serial (2-Wire)
Digital Output - Number Of Bits
13 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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The master device generates all of the serial clock pulses and the START and STOP conditions. A
transfer is ended with a STOP condition or with a repeated START condition. Since a repeated START
condition is also the beginning of the next serial transfer, the bus will not be released.
The DS1624 may operate in the following two modes:
1. Slave receiver mode: Serial data and clock are received through SDA and SCL. After each byte is
2. Slave transmitter mode: The first byte is received and handled as in the slave receiver mode.
SLAVE ADDRESS
A control byte is the first byte received following the START condition from the master device. The
control byte consists of a four bit control code; for the DS1624, this is set as 1001 binary for read and
write operations. The next three bits of the control byte are the device select bits (A2, A1, A0). They are
used by the master device to select which of eight devices are to be accessed. These bits are in effect the
three least significant bits of the slave address. The last bit of the control byte (R/
operation to be performed. When set to a “1”, a read operation is selected, when set to a “0”, a write
operation is selected. Following the START condition the DS1624 monitors the SDA bus checking the
device type identifier being transmitted. Upon receiving the 1001 code and appropriate device select bits,
the slave device outputs an acknowledge signal on the SDA line.
2-WIRE SERIAL COMMUNICATION WITH DS1624 Figure 3
received an acknowledge bit is transmitted. START and STOP conditions are recognized as the
beginning and end of a serial transfer. Address recognition is performed by hardware after reception
of the slave address and direction bit.
However, in this mode the direction bit will indicate that the transfer direction is reversed. Serial data
is transmitted on SDA by the DS1624 while the serial clock is input on SCL. START and STOP
conditions are recognized as the beginning and end of a serial transfer.
5 of 17
W
) defines the
DS1624