參數(shù)資料
型號: XE8000EV108
廠商: Semtech
文件頁數(shù): 118/143頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XE8806/XE8807
標準包裝: 1
類型: MCU
適用于相關(guān)產(chǎn)品: XE88LC06AMI026
所含物品: 完全組裝的評估板
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
Semtech 2006
www.semtech.com
12-7
XE8806A/XE8807A
The input buffer is always active, except in analog mode. This means that the Port B input should be a valid digital
value at all times unless the pin is set in analog mode. Violating this rule may lead to high power consumption.
12.7.2
Port B digital function specification
sym
description
min
typ
max
unit
Comments
VINH
Input high voltage
0.7*VBAT
VBAT
V
VBAT
≥2.4V
VINL
Input low voltage
VSS
0.2*VBAT
V
VBAT
≥2.4V
VOH
Output high voltage
VBAT-0.4
VBAT
V
VBAT=1.2V, IOH =0.3mA
VBAT=2.4V, IOH =5.0mA
VBAT=4.5V, IOH =8.0mA
VOL
Output low voltage
VSS
VSS+0.4
V
VBAT=1.2V, IOL =0.3mA
VBAT=2.4V, IOL
=12.0mA
VBAT=4.5V, IOL
=15.0mA
RPU
Pull-up resistance
20
50
80
k
Cin
Input capacitance
3.5
pF
Note 1
Note 1: this value is indicative only since it depends on the package.
Table 12-12. Digital port specification
12.8
Low power comparators
If the low power comparator (CMPD) peripheral is present in the circuit, the signals on the pins PB[7:4] can be used
as inputs for these low power comparators. Although the comparators are functional independent of the Port B
configuration, it is recommended to set the pins that are used for the CMPD in analog mode without selecting any
analog lines. This to avoid high power consumption in the digital input buffer when analog or slowly varying digital
signals are applied.
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