參數(shù)資料
型號(hào): DS28EA00U+T&R
廠商: Maxim Integrated
文件頁(yè)數(shù): 13/29頁(yè)
文件大?。?/td> 328K
描述: IC THERMOMETER 1-WIRE 8-USOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 3,000
功能: 溫度計(jì),恒溫計(jì)
傳感器類(lèi)型: 內(nèi)部
感應(yīng)溫度: -40°C ~ 85°C
精確度: ±0.5°C(最小值)
拓?fù)洌?/td> 寄存器庫(kù),變簽式暫存器
輸出類(lèi)型: 數(shù)字
輸出警報(bào):
輸出風(fēng)扇: 無(wú)
電源電壓: 3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-uMAX
包裝: 帶卷 (TR)
1-Wire Digital Thermometer with
Sequence Detect and PIO
DS28EA00
Maxim Integrated
13
BUS MASTER Tx CONTROL
FUNCTION COMMAND
DS28EA00 SETS
BYTE ADDRESS = 2
4Eh
WRITE SCRATCHPAD?
N
Y
Y
N
N
Y
N
MASTER Tx RESET?
BYTE
ADDRESS = 4?
MASTER Tx RESET?
MASTER Tx DATA
BYTE TO SCRATCHPAD
DS28EA00 INCREMENTS
BYTE ADDRESS
FROM ROM FUNCTIONS
FLOWCHART (FIGURE 11)
TO ROM FUNCTIONS
FLOWCHART (FIGURE 11)
Y
TO FIGURE 9b
FROM FIGURE 9b
DS28EA00 SETS
BYTE ADDRESS = 0
DS28EA00 STARTS
COPY TO EEPROM
BEh
READ SCRATCHPAD?
N
Y
MASTER Rx BYTE
FROM SCRATCHPAD
MASTER ACTIVATES STRONG
PULLUP FOR t
PROG
MASTER DEACTIVATES
STRONG PULLUP
DS28EA00 COPIES
SCRATCHPAD DATA TO EEPROM
48h
COPY SCRATCHPAD?
MASTER DECISION.
THE MASTER NEEDS TO
KNOW WHETHER V
DD
POWER IS AVAILABLE.
N
Y
Y
N
Y
V
DD
POWERED?
COPY
COMPLETED?
MASTER Rx "0"s
MASTER Rx "1"s
Y
N
N
MASTER Tx RESET?
BYTE
ADDRESS = 7?
DS28EA00 INCREMENTS
BYTE ADDRESS
MASTER Rx 8-BIT
CRC OF DATA
N
Y
N
MASTER Tx RESET?
Y
MASTER Rx "1"s
N
MASTER Tx RESET?
Y
Figure 9a. Control Function Flowchart
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