DS2480B+ Maxim Integrated Products, DS2480B+ Datasheet - Page 23

• Manufacturer Part Number: DS2480B+
• Description: IC LINE DRVR W/SENSOR 1-W 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Line Driver, Transmitterr

Specifications of DS2480B+

• Number Of Drivers/receivers: 1/0
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

READ MEMORY SEQUENCE
WRITE EPROM SEQUENCE (DS2505)
Write memory starting at address 40h
TEMPERATURE CONVERSION SEQUENCE
Generate Reset Pulse
Set Data Mode
Skip ROM Command
Read Memory Command
Starting Address TA1
Starting Address TA2
Read 8 Bytes of Data
Set Command Mode
Generate Reset Pulse
Set Vpp dur. = 512µs
Generate Reset Pulse
Set Data Mode
Skip ROM Command
Write Memory Command
Starting Address TA1
Starting Address TA2
*** Send Data Byte
Receive CRC16
Set Command Mode
Generate Program Pulse
Set Data Mode
Read Written Byte
Go to *** to write the next byte or end the sequence as shown below
Set Command Mode
Generate Reset Pulse
Set pullup dur. = 524ms
Generate Reset Pulse
Set Data Mode
Skip ROM Command
Set Command Mode
Arm Strong Pullup
Terminate Pulse
Set Data Mode
Convert Temperature
Wait for Pulse Response
Set Command Mode
Disarm Strong Pullup
Terminate Pulse
Generate Reset Pulse
Action Sequence
Action Sequence
Action Sequence
23 of 32
Host TX
Host TX
Host TX
(nothing)
FF (x8)
FF (x2)
(data)
ED
CC
CC
FD
CC
EF
C1
C1
C1
C1
C1
C1
E1
E3
E1
E3
E1
FF
E3
E1
E3
F1
E1
E3
F1
F0
40
00
29
0F
40
00
39
44
CD or ED
CD or ED
CD or ED
CD or ED
CD or ED
CD or ED
(nothing)
(nothing)
(nothing)
(nothing)
(nothing)
(nothing)
(nothing)
Host RX
(nothing)
Host RX
(nothing)
response
(nothing)
Host RX
(nothing)
response
(nothing)
response
response
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
CRC16
(data)
(data)
CC
28
38