參數(shù)資料
型號: DS28EA00U+T&R
廠商: Maxim Integrated
文件頁數(shù): 20/29頁
文件大小: 328K
描述: IC THERMOMETER 1-WIRE 8-USOP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 3,000
功能: 溫度計,恒溫計
傳感器類型: 內(nèi)部
感應溫度: -40°C ~ 85°C
精確度: ±0.5°C(最小值)
拓撲: 寄存器庫,變簽式暫存器
輸出類型: 數(shù)字
輸出警報:
輸出風扇:
電源電壓: 3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 8-uMAX
包裝: 帶卷 (TR)
1-Wire Digital Thermometer with
Sequence Detect and PIO
DS28EA00
20
Maxim Integrated
DS28EA00 Tx
PRESENCE PULSE
BUS MASTER Tx
RESET PULSE
BUS MASTER Tx ROM
FUNCTION COMMAND
DS28EA00 Tx
CRC BYTE
DS28EA00 Tx
FAMILY CODE
(1 BYTE)
DS28EA00 Tx
SERIAL NUMBER
(6 BYTES)
OD = 0
MASTER Tx BIT 0
Y
OD
RESET PULSE?
Y
Y
Y
Y
Y
Y
N
33h
READ ROM
COMMAND?
N
55h
MATCH ROM
COMMAND?
BIT 0 MATCH?
BIT 0 MATCH?
N
N
N
N
N
N
N
F0h
SEARCH ROM
COMMAND?
N
ECh
CONDITIONAL SEARCH
COMMAND?
N
Y
MASTER Tx BIT 1
MASTER Tx BIT 63
BIT 1 MATCH?
BIT 63 MATCH?
Y
Y
FROM CONTROL FUNCTIONS
FLOWCHART (FIGURE 9)
TO CONTROL FUNCTIONS
FLOWCHART (FIGURE 9)
DS28EA00 Tx BIT 0
DS28EA00 Tx BIT 0
MASTER Tx BIT 0
BIT 1 MATCH?
BIT 63 MATCH?
DS28EA00 Tx BIT 1
DS28EA00 Tx BIT 1
MASTER Tx BIT 1
DS28EA00 Tx BIT 63
DS28EA00 Tx BIT 63
MASTER Tx BIT 63
Y
BIT 0 MATCH?
N
N
N
Y
Y
DS28EA00 Tx BIT 0
DS28EA00 Tx BIT 0
MASTER Tx BIT 0
TEMPERATURE
ALARM?
N
Y
BIT 1 MATCH?
BIT 63 MATCH?
DS28EA00 Tx BIT 1
DS28EA00 Tx BIT 1
MASTER Tx BIT 1
DS28EA00 Tx BIT 63
DS28EA00 Tx BIT 63
MASTER Tx BIT 63
Y
FROM FIGURE 11b
TO FIGURE 11b
TO FIGURE 11b
FROM FIGURE 11b
Figure 11a. ROM Functions Flowchart
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