DS18S20-PAR Maxim Integrated Products, DS18S20-PAR Datasheet - Page 12

• Manufacturer Part Number: DS18S20-PAR
• Description: Board Mount Temperature Sensors
• Manufacturer: Maxim Integrated Products

Specifications of DS18S20-PAR

• Full Temp Accuracy: +/- 0.5 C
• Package / Case: TO-92
• Digital Output - Bus Interface: Serial (1-Wire)
• Digital Output - Number Of Bits: 9 bit
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 55 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS18S20-PAR FUNCTION COMMANDS FLOW CHART Figure 10
MASTER T
COMMAND
FUNCTION
N
X
RECALL FROM E
MASTER BEGINS DATA
BUSY RECALLING
RECALL E
MASTER
DEVICE
R
Y
DATA
B8h
X
?
?
“0s”
Y
2
2
PROM
DS18S20-PAR CONVERTS
STRONG PULLUP ON DQ
MASTER DISABLES
MASTER ENABLES
STRONG PULLUP
TEMPERATURE
TEMPERATURE
N
CONVERT
MASTER
R
44h
X
?
“1s”
Y
SEQUENCE (FIGURE 9) FOR
RETURN TO INITIALIZATION
NEXT TRANSACTION
N
12 of 20
N
MASTER R
N
MASTER R
FROM SCRATCHPAD
SCRATCHPAD
HAVE 8 BYTES
BEEN READ
CRC BYTE
T
MASTER
X
READ
X
RESET
BEh
X
SCRATCHPAD
?
?
?
DATA BYTE
N
Y
Y
Y
SCRATCHPAD TO EEPROM
STRONG PULL-UP ON DQ
DATA COPIED FROM
MASTER DISABLES
MASTER ENABLES
STRONG PULLUP
SCRATCHPAD
COPY
48h
?
N
MASTER T
MASTER T
Y
TO SCRATCHPAD
TO SCRATCHPAD
SCRATCHPAD
WRITE
4Eh
N
?
X
X
T
T
Y
L
H
BYTE
BYTE