DS1624 Maxim Integrated Products, DS1624 Datasheet - Page 13

• Manufacturer Part Number: DS1624
• Description: IC THERM/EEPROM DIG 256BYTE 8DIP
• Manufacturer: Maxim Integrated Products

Specifications of DS1624

• 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: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• 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

NOTES:
1. If this protocol follows a write and the DS1624 does not acknowledge here, restart the protocol at the
2. Wait for write to complete (10 ms typ. 50 ms max). If DS1624 does not acknowledge the command
3. If n is greater than eight, the last eight bytes are the only bytes saved in memory. If the starting
4. The STOP condition causes the DS1624 to initiate the write to EEPROM sequence. If a START
5. For reading, the address is incremented. If the starting address is 04h and 30 bytes of data are read
BUS MASTER
Start here. If it does acknowledge, continue on.
protocol immediately following a configure register or write mem protocol, the DS1624 has not
finished writing. Restart the new command protocol until the DS1624 acknowledges.
address is 00 and the incoming data is 00 11 22 33 44 55 66 77 88 99, the result will be mem00=88
mem01=99 mem02=22 mem03=33 mem04=44 mem05=55 mem06=66 mem07=77. The data wraps
around and overwrites itself.
condition comes instead of the STOP condition, the write is aborted. The data is not saved.
out, 21h is the final address read.
MODE
RX
RX
TX
TX
TX
.
.
.
.
DS1624
MODE
TX
RX
TX
RX
RX
.
.
.
.
DATA (MSB
FIRST)
NACK
<data>
<data>
STOP
ACK
.
.
.
.
13 of 17
DS1624 sends the second byte of data.
Bus Master generates acknowledge bit.
.
.
.
.
DS1624 sends the n-th byte of data.
Bus Master send “NO KWOWLEDGE”
bit.
Bus Master initiates the STOP condition.
COMMENTS
NOTES
DS1624
5