参数资料
型号: XE8805AMI028LF
厂商: Semtech
文件页数: 61/156页
文件大小: 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
标准包装: 160
系列: XE880x
应用: 感测机
核心处理器: Coolrisc816?
程序存储器类型: 闪存(22 kB)
控制器系列: XE8000
RAM 容量: 512 x 8
接口: UART,USRT
输入/输出数: 24
电源电压: 2.4 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
包装: 托盘
供应商设备封装: 64-LQFP(10x10)
产品目录页面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
21-3
XE8805/05A
symbol
description
min
typ
max
unit
comments
trimming values:
Note 1
VldRange
VldTune
1.53
0
000
1.44
0
001
1.36
0
010
1.29
0
011
1.22
0
100
1.16
0
101
1.11
0
110
1.06
0
111
3.06
1
000
2.88
1
001
2.72
1
010
2.57
1
011
2.44
1
100
2.33
1
101
2.22
1
110
Vth
Threshold voltage
2.13
V
1
111
TEOM
duration of
measurement
2.0
2.5
ms
Note 2
TPW
Minimum pulse width
detected
875
1350
us
Note 2
Table 221-4: Voltage level detector operation
Note 1: absolute precision of the threshold voltage is
±10%.
Note 2: this timing is respected in case the internal RC or crystal oscillators are enabled
To start the voltage level detection, the user sets bit VldEn. The measurement is started.
After 2ms, the bit VldValid is set to indicate that the measurement results are valid. From that time on, as long as
the VLD is enabled, a maskable interrupt request is sent if the voltage level falls below the threshold. One can also
poll the VLD and monitor the actual measurement result by reading the VldResult bit of the RegVldStat. This
result is only valid as long as the VldValid bit is ‘1’.
An interrupt is generated on each rising edge of VldResult.
Not
Recommended
for
New
Designs
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