XE8806AMI026TLF Semtech, XE8806AMI026TLF Datasheet - Page 134
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XE8806AMI026TLF
Manufacturer Part Number
XE8806AMI026TLF
Description
IC MCU LOW PWR MTP FLASH 32-TQFP
Manufacturer
Semtech
Datasheet
1.XE8807AMI026TLF.pdf
(143 pages)
Specifications of XE8806AMI026TLF
Applications
Sensing Machine
Core Processor
RISC
Program Memory Type
FLASH (22 kB)
Controller Series
XE8000
Ram Size
512 x 8
Interface
UART, USRT
Number Of I /o
24
Voltage - Supply
2.4 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-TQFP, 32-VQFP
For Use With
XE8000MP - PROG BOARD AND PROSTART2 CARD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
XE8806AMI026TR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XE8806AMI026TLF
Manufacturer:
MAXIM
Quantity:
230
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18.5 VLD operation
The VLD is controlled by VldRange, VldTune and VldEn. VldRange selects the voltage range to be detected,
while VldTune is used to fine-tune this voltage level in 8 steps. VldEn is used to enable (disable) the VLD with a
1(0) value respectively. Disabled, the block will dissipate no power.
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 selected. Refer to the clock block
documentation in case the external clock is used.
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’.
© Semtech 2006
symbol
T
Vth
T
EOM
PW
Minimum pulse width
Threshold voltage
description
measurement
duration of
detected
Table 18-5: Voltage level detector operation
min
18-3
Note 1
1.53
1.44
1.36
1.29
1.22
1.16
1.11
1.06
3.06
2.88
2.72
2.57
2.44
2.33
2.22
2.13
typ
875
2.0
1350
max
2.5
unit
ms
us
V
XE8806A/XE8807A
VldRange
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
trimming values:
comments
Note 2
Note 2
VldTune
www.semtech.com
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
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