參數(shù)資料
型號(hào): DS2890P-000+T&R
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 10/27頁(yè)
文件大?。?/td> 0K
描述: IC POT DIGITAL 1-WIRE 100K 6TSOC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 4,000
接片: 256
電阻(歐姆): 100k
電路數(shù): 1
溫度系數(shù): 標(biāo)準(zhǔn)值 800 ppm/°C
存儲(chǔ)器類型: 易失
接口: 1 線 串行
電源電壓: 2.8 V ~ 6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 6-LSOJ
供應(yīng)商設(shè)備封裝: 6-TSOC
包裝: 帶卷 (TR)
DS2890
18 of 27
FIGURE 16. INITIALIZATION PROCEDURE “RESET AND PRESENCE
PULSES”
RESISTOR
MASTER
DS2890
MASTER RX "PRESENCE PULSE"
REGULAR SPEED
OVERDRIVE SPEED
480 s ≤ tRSTL < *
480 s ≤ tRSTH < **
15 s ≤ tPDH < 60 s
60 ≤ t
PDL < 240 s
48 s ≤ tRSTL < 80 s
48 s ≤ tRSTH < **
2 s ≤ tPDH < 6 s
8 ≤ tPDL < 24 s
MASTER TX
"RESET PULSE"
VPULLUP
VPULLUP MIN
VIH MIN
VIL MAX
0V
tRSTH
tRSTL
t
PDH
tPDL
tR
* In order not to mask interrupt signaling by other devices on the 1-Wire bus and to prevent a power-
on reset of the parasite powered circuit, tRSTL + tR should always be less than 960 s.
** Includes recovery time.
FIGURE 17. READ/WRITE TIMING DIAGRAMS
a) Write-one Time Slot
15s
(OD: 2s)
60s
(OD: 6s)
DS2890
Sampling Window
VPULLUP
VPULLUP MIN
VIH MIN
VIL MAX
0V
tSLOT
tREC
tLOW1
REGULAR SPEED
OVERDRIVE SPEED
60 s ≤ tSLOT < 120 s
1 s ≤ tLOW1 < 15 s
6 s ≤ tSLOT < 16 s
1 s ≤ tLOW1 < 2 s
1 s ≤ tREC <
RESISTOR
MASTER
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