XE8801AMI000WP Semtech, XE8801AMI000WP Datasheet - Page 69
XE8801AMI000WP
Manufacturer Part Number
XE8801AMI000WP
Description
SENSING MACHINE WITH 16 + 10 BIT
Manufacturer
Semtech
Datasheet
1.XE8801AMI027LF.pdf
(135 pages)
Specifications of XE8801AMI000WP
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
Die
For Use With
XE8000MP - PROG BOARD AND PROSTART2 CARD
Other names
Q2722595
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Each bit can be set individually for pull-up or not using register RegPBPullup. Input is pulled up when its
corresponding bit in this register is set to 1. Default status after (resetpconf) is 0, which means without pull up. To
limit power consumption, pull-up resistors are only enabled when the associated pin is either a digital input or an N-
channel open-drain output with the pad set to 1. In the other cases (push-pull output or open-drain output driven
low), the pull up resistors are disabled independent of the value in RegPBPullup.
After power-on reset, the Port B is configured as an input port without pull-up.
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
Note 1: this value is indicative only since it depends on the package.
© Semtech 2005
Sym
V
V
V
R
V
Cin
INL
INH
OL
PU
OH
Port B digital function specification
description
Input high voltage
Input low voltage
Output high voltage
Output low voltage
Pull-up resistance
Input capacitance
0.7*VBAT
VBAT-0.4
VSS
VSS
min
20
3.5
typ
50
12-6
0.2*VBAT
VSS+0.4
VBAT
VBAT
max
80
unit Comments
kΩ
pF
V
V
V
V
VBAT=1.2V, I
VBAT=2.4V, I
VBAT=4.5V, I
VBAT=1.2V, I
VBAT=2.4V, I
VBAT=4.5V, I
VBAT≥2.4V
VBAT≥2.4V
=12.0mA
=15.0mA
Note 1
XE8801A – SX8801R
OH
OH
OH
OL
=0.3mA
=0.3mA
=5.0mA
=8.0mA
OL
OL
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