DS2480 Dallas Semiconducotr, DS2480 Datasheet - Page 20

• Manufacturer Part Number: DS2480
• Description: Serial 1.Wire Line Driver
• Manufacturer: Dallas Semiconducotr

WRITE EPROM SEQUENCE (DS2505)
Write memory starting at address 40h
DS2480
042498 20/26
Set Vpp dur. = 512 s
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
Action Sequence
Host TX
FF (x2)
(data)
CC
C1
E1
E3
FD
E1
FF
E3
C1
29
0F
40
00
response
(nothing)
(nothing)
(nothing)
(nothing)
Host RX
(as sent)
(as sent)
(as sent)
(as sent)
(as sent)
CRC16
(data)
C9
C9
28
TEMPERATURE CONVERSION SEQUENCE
Set pull–up dur. = 524 ms
Generate Reset Pulse
Set data mode
Skip ROM Command
Set command mode
Arm strong pull–up
Terminate pulse
Set data mode
Convert Temperature
Wait for pulse response
Set command mode
Disarm strong pull–up
Terminate pulse
Generate Reset Pulse
Action Sequence
(nothing)
Host TX
CC
ED
C1
E1
E3
EF
F1
E1
E3
F1
C1
39
44
response
response
(nothing)
(nothing)
(nothing)
(nothing)
response
Host RX
(as sent)
(nothing)
(as sent)
(nothing)
C9
C9
38