 Maxim Integrated Products 16
MAX31826
1-Wire Digital Temperature Sensor
with 1Kb Lockable EEPROM
Figure 8. MAX31826 Function Commands Flowchart
44h
CONVERT T?
Y
N
PARASITE
POWER?
MASTER Tx
FUNCTION COMMAND
MAX31826 BEGINS
CONVERSION
MASTER Tx
START ADDRESS
MASTER Tx
TOKEN A5h
MASTER Rx DATA BYTE
FROM EEPROM
MASTER Rx
1s
MASTER Rx
0s
Y
N
MASTER ENABLES
STRONG PULLUP ON DQ
MAX31826 CONVERTS
TEMPERATURE
MASTER DISABLES
STRONG PULLUP
MASTER ENABLES
STRONG PULLUP ON DQ
DATA COPIED FROM
SCRATCHPAD 2 TO EEPROM
MASTER DISABLES
STRONG PULLUP
DATA COPIED FROM
SCRATCHPAD 2 TO EEPROM
DEVICE
CONVERTING
TEMPERATURE?
Y
N
MASTER Rx
0s
MASTER Rx
1s
55h
COPY
SCRATCHPAD 2?
N
PARASITE
POWER?
Y
N
Y
N
N
F0h
READ
MEMORY?
Y
N
Y
MASTER Tx
RESET?
MASTER Tx EEPROM
PAGE ADDRESS
0Fh
WRITE
SCRATCHPAD 2?
Y
MASTER Tx 8 DATA
BYTES
MASTER Rx
CRC BYTE
MASTER Tx
START ADDRESS
AAh
READ
SCRATCHPAD 2?
Y
Y
MASTER Rx DATA BYTE
FROM SCRATCHPAD 2
MASTER Rx DATA BYTE
FROM SCRATCHPAD 1
RETURN TO INITIALIZATION SEQUENCE
FOR NEXT TRANSACTION
MASTER Rx
SCRATCHPAD 2 CRC BYTE
Y
N
N
N
MASTER Tx
RESET?
Y
MASTER Rx
SCRATCHPAD 1 CRC BYTE
Y
HAVE 8 BYTES
BEEN READ?
BEh
READ
SCRATCHPAD 1?
Y
N
B4h
READ
POWER SUPPLY?
PARASITE
POWER?
N
N
Y
N
N
MASTER Tx
RESET?
HAVE 8 BYTES
BEEN READ?
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相关代理商/技术参数
MAX3182EEUK 制造商:Maxim Integrated Products 功能描述:+-15KV ESD-PROTECTED 0.5MA +3V TO - Rail/Tube
MAX3182EEUK+ 制造商:Maxim Integrated Products 功能描述:LINE RCVR 1RX 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:Single Receiver RS-232 5-Pin SOT-23 Bulk
MAX3182EEUK+T 功能描述:RS-232接口集成电路 .5uA 3-5.5V 1.5Mbps RS-232 Rcvr RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX3182EEUK-T 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX3182EUK 制造商:Maxim Integrated Products 功能描述:3V TO 5.5V 15MBPS RS-232 RECEIVER - Rail/Tube
MAX3182EUK+ 制造商:Maxim Integrated Products 功能描述:LINE RCVR 1RX 5PIN SOT-23 - Cut Tape Product
MAX3182EUK+T 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX3182EUK-T 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: