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BU1850MUV Datasheet(PDF) 1 Page - Rohm

No. de pieza BU1850MUV
Descripción Electrónicos  GPIO Expander IC
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Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU1850MUV Datasheet(HTML) 1 Page - Rohm

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www.rohm.com
2009.09 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
GPIO ICs Series
GPIO Expander IC
BU1850MUV
●Description
GPIO expander is useful especially for the application that is in short of IO ports.
It can
1. Control GPIO output states by I
2C write protocol.
2. Know GPIO input states by I
2C read protocol.
Furthermore,it has the interrupt function that can release CPU from polling the registers in the GPIO expander.
GPIO expander are also equipped with Built-in power on reset, 3V tolerant input,and NMOS open-drain output.
●Features
1)
An 8-Port General purpose input/output interface 150kΩPull-down resistance.
2)
NMOS Open-drain output interrupt controller with up to 1us pulse noise filter and bit mask function for
individual GPIO port.
3)
3volt tolerant Input
4)
Built-in Power On Reset
5)
3mmx3mm small package
●Absolute maximum ratings
(Ta=25
oC)
This IC is not designed to be X-ray proof.
*1
It is prohibited to exceed the absolute maximum ratings even including +0.3 V.
*2
Package dissipation will be reduced each 2.72mW/
oC when the ambient temperature increases beyond 25 oC.
●Operating conditions
Parameter
Symbol
Min
Typ
Max
Unit
Conditions
Supply voltage range (VDD)
VVDD
1.65
1.80
3.6
V
Core, XINT, XRST,
SCL, SDA, ADR,
Power On Reset
Supply voltage range (VDDIO)
VVDDIO
1.65
1.80
3.6
V
GPIO[7:0]
Input voltage range
VIN
-0.2
-
VVDD+0.2
V
XRST, ADR
VINT
-0.2
-
3.6
V
XINT, SCL, SDA,
GPIO[7:0]
Operating temperature range
Topr
-30
-
+85
I
2C operating frequency
FI2C
-
-
400
kHz
Slave
Parameter
Symbol
Rating
Unit
comment
Supply Voltage
*1
VDD
-0.3 ~ +4.5
V
VDD≦VDDIO
VDDIO
-0.3 ~ +4.5
V
Input voltage
VI
-0.3 ~ VDD +0.3
*1
V
XRST, ADR
VIT
-0.3 ~ 4.5
V
XINT, SCL, SDA, GPIO[7:0]
Storage temperature range
Tstg
-55 ~ +125
Package power
PD
272
*2
mW
No.09098EAT02


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