參數(shù)資料
型號: DS2490S
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Bus Controller
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDSO24
封裝: 0.300 INCH, SO-24
文件頁數(shù): 30/51頁
文件大?。?/td> 444K
代理商: DS2490S
DS2490
36 of 50
PARAMETER
SYMBOL
MIN
MAX
UNITS
NOTES
Strong Pullup Voltage Drop @ 50mA
load on 1-Wire
ΔVSTRPU
170
1540
mV
2
Programming Voltage Drop @ 10mA
load on 1-Wire
ΔVPROG
65
440
mV
3
VPP Sensor Trip Point
VPPTRIP
6.9
10.0
V
6
NOTES:
1. Applies only if 12.0V VPP supply is connected. If VPP and VD are tied together, current is less than
1
μA.
2. Voltage difference between VD and 1-WIRE.
3. Voltage difference between VPP and 1-WIRE.
4. Applies for both unconfigured and configured USB states.
5. Applies for the USB suspend state.
6. Voltage referenced to ground
AC CHARACTERISTICS CONDITIONS:
TA: 0
oC to +70 oC
VD: 4.4V to 5.5V, VB: 3.0V to 3.6V
PARAMETER
SPECIFICATION
USB I/F
As defined in Chapter 7 of the USB Specification
1-Wire I/F
See the section “1-WIRE INTERFACE CONTROLLER” of this
document
CAPACITANCE CONDITIONS:
TA: +25
oC
PARAMETER
SYMBOL
MIN
MAX
UNITS
NOTES
Input Capacitance
CIN
15
pF
Output Capacitance
COUT
15
pF
Input/Output Capacitance
CIO
15
pF
HW/SW APPLICATION RECOMMENDATIONS
A schematic example of a USB to 1-Wire Adapter peripheral is shown in Figure 13.
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