参数资料
型号: DS2408S+
厂商: Maxim Integrated Products
文件页数: 26/39页
文件大小: 0K
描述: IC SWITCH 8-CHAN ADDRESS 16SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
接口: 1 线
输入/输出数: 8
中断输出:
电源电压: 2.8 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
DS2408
32 of 39
Command-Specific 1-Wire Communication Protocol—Legend
SYMBOL
DESCRIPTION
RST
1-Wire Reset Pulse generated by master.
PD
1-Wire Presence Pulse generated by slave.
Select
Command and data to satisfy the ROM function protocol.
RPR
Command "Read PIO Registers".
CAR
Command "Channel-Access Read".
CAW
Command "Channel-Access Write".
WCS
Command "Write Conditional Search Register".
RAL
Command "Reset Activity Latches".
TA
Target Address TA1, TA2.
<data>
Transfer of an undetermined amount of data.
CRC16\
Transfer of an inverted CRC16.
FF loop
Indefinite loop where the master reads FF bytes.
AA loop
Indefinite loop where the master reads AA bytes.
<32 samples>,
CRC16\ loop
Indefinite loop where the master reads 32 PIO samples followed by an inverted CRC16.
<new state>, <new
state\>
Transfer of 2 bytes, where the second byte is the bit-inverse of the first byte. The first
byte will be taken as the new PIO state.
AAh, <read back>
Transfer of 2 bytes, where the first byte is a constant (AAh) and the second byte is the
current PIO state.
<new state>,
<invalid>
Transfer of 2 bytes, where the second byte is NOT the bit-inverse of the first byte.
Command-Specific 1-Wire Communication Protocol—Color Codes
Master to slave
Slave to master
Read PIO Registers (Success)
RST
PD
Select
RPR TA
<data>
CRC16\ FF loop
Read PIO Registers (Fail Address)
RST
PD
Select
RPR TA
FF loop
Channel-Access Read (Cannot Fail)
RST
PD
Select
CAR <32 samples>, CRC16\ loop
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