參數(shù)資料
型號： XE8805AMI028LF
廠商： Semtech
文件頁數(shù)： 122/156頁
文件大小： 0K
描述： IC DAS 16BIT FLASH 8K MTP 64LQFP
標(biāo)準(zhǔn)包裝： 160
系列： XE880x
應(yīng)用： 感測機(jī)
核心處理器： Coolrisc816?
程序存儲器類型： 閃存（22 kB）
控制器系列： XE8000
RAM 容量： 512 x 8
接口： UART，USRT
輸入/輸出數(shù)： 24
電源電壓： 2.4 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-LQFP
包裝： 托盤
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
產(chǎn)品目錄頁面： 585 (CN2011-ZH PDF)
配用： XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
12-4
XE8805/05A
if x is even, PBDir[x+1, x]
PBPullup[x]
PB[x] selection on
00
1
analog line 0
01
1
analog line 1
10
1
analog line 2
11
1
analog line 3
XX
0
High impedance
Table 12-9: Selection of the analog lines for PB[x] when x is even and PBAna[x] = 1
Example:
Set the pads PB[2] and PB[3] on the analog line 3. (the values X depend on the configuration of others
pads)
-
apply high impedance in the analog mode (move RegPBPullup,#0bXXXX00XX)
-
go to analog mode (move RegPBAna,#0bXXXXXX1X)
-
select the analog line3 (move RegPBDir,#0bXXXX11XX and move RegPBOut,#0bXXXX11XX)
-
connect the analog line to the pins (move RegPBPullup,#0bXXXX11XX)
12.5.2
Port B analog function specification
The table below defines the on-resistance of the switches between the pin and the analog bus for different
conditions. The series resistance between 2 pins of Port B connected to the same analog line is twice the
resistance given in the table.
sym
description
min
typ
max
unit
Comments
Ron
switch resistance
11
k
Note 1
Ron
switch resistance
15
k
Note 2
Cin
input capacitance (off)
3.5
pF
Note 3
Cin
input capacitance (on)
4.5
pF
Note 4
Table 12-10. Analog input specifications.
Note 1: This is the series resistance between the pad and the analog line in 2 cases
1. VBAT
≥ 2.4V and the VMULT peripheral is present on the circuit and enabled.
2. VBAT
≥ 3.0V and the VMULT peripheral is not present on the circuit.
Note 2: This is the series resistance in case VBAT
≥ 2.8V and the peripheral VMULT is not present on the circuit.
Note 3: This is the input capacitance seen on the pin when the pin is not connected to an analog line. This value is
indicative only since it is product and package dependent.
Note 4: This is the input capacitance seen on the pin when the pin is connected to an analog line and no other pin
is connected to the same analog line. This value is indicative only since it is product and package dependent.
12.6 Port B function capability
The Port B can be used for different functions implemented by other peripherals. The description below is
applicable only in so far the circuit contains these peripherals.
When the counters are used to implement a PWM function (see the documentation of the counters), the PB[0] and
PB[1] terminals are used as outputs (PB[0] is used if CntPWM0 in RegCntConfig1 is set to 1, PB[1] is used if
CntPWM1 in RegCntConfig1 is set to 1) and the PWM generated values overwrite the values written in
RegPBout. However, PBDir(0) and PBDir(1) are not automatically overwritten and have to be set to 1.
If OutputCkXtal is set in RegSysMisc, the Xtal clock is output on PB[3] (EnableXtal in RegSysClock must be set
to 1). This overrides the value contained in PBOut(3). However, PBDir(3) must be set to 1. The duty cycle of the
clock signal is about 50%.
Similarly, if OutputCkCpu is set in RegSysMisc, the CPU frequency is output on PB[2]. This overrides the value
contained in PBOut(2). However, PBDir(2) must be set to 1.
Not
Recommended
for
New
Designs
相關(guān)PDF資料
PDF描述
XE8807AMI026TLF IC MCU LOW PWR MTP FLASH 32-TQFP
XIO2200AGGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XIO2200AZGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XPC823ZT81B2T IC MPU POWERQUICC 81MHZ 256-PBGA
XPC8240RZU250E MCU HOST PROCESSOR 352-TBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XE8805AMI028TLF 制造商:Semtech Corporation 功能描述:
XE8805MI028 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Data Acquisition MCU
XE8806A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI000 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI026LF 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*