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BU92747KV Datasheet(PDF) 2 Page - Rohm

No. de pieza BU92747KV
Descripción Electrónicos  Silicon Monolithic Integrated Circuit
Download  5 Pages
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Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU92747KV Datasheet(HTML) 2 Page - Rohm

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REV. A
●Electrical Characteristics (DC Characteristics)
Ta=25
°C, V
DD=1.8V, VIO1=1.8V, VIO2=1.8V and GND=0V unless otherwise stated
Standard value
Item
Symbol
MIN
TYP
MAX
Unit
Remarks
Dissipation current 1
IDD1
-
0.1
10
µA
For input with no output load = 0V
Dissipation current 2
IDD2
-
10
30
mA
For XIN = 48MHz
Digital high-level input voltage
VIH
0.75
× V
IO
-
-
V
Digital low-level input voltage
VIL
-
-
0.25
× V
IO
V
-
-
10
µA
Input voltage level 1.8V
Digital high-level input current
IIH
-
-
100
µA
Input voltage level 1.8V
TEST1-3
Digital low-level input current
IIL
-
-
10
µA
Input voltage level GND
Digital high-level output voltage
VOH
VIO-0.6
-
-
V
INTR, D0-15, IrDAPWDOWN,
IrTX, IrRC, NIRQ, CTLA
IOH=-1mA
Digital low-level output voltage
VOL
-
-
0.6
V
INTR, D0-15, IrDAPWDOWN,
IrTX, IrRC, SDA, NIRQ, CTLA
IOL=1mA
●Pin Description
Pin name
I / O
Condition
of after
reset
Pin Function
Circuit
Diagram
IrRX
I
-
IrDA Receive Input Pin
B
EXTIR
I
-
Signal Input Pin in SM2="H"
(Input Signal is outputted to IrTX or IrRC)
B
IrTX
O
L
IrDA and remote control Transmission Output Pin
Transmission IrDA when RC_EN= "L"
Transmission remote control when RC_EN="H", RC_MODE="H"
A
D0-15
I / O
Input
Data I/O Pin
C
A0-3
I
-
Address Input Pin
B
CS
I
-
Chip Select Pin. Low (L) Active
The read/write signal goes “Active” in a Low period.
B
RD
I
-
Read Signal Input Pin. Low (L) Active
B
WR
I
-
Write Signal Input Pin. Low (L) Active
B
INTR
O
H
CPU Interrupt Request Output Pin (IrDA controller)
The signal goes “Low” when an interrupt condition takes place.
A
RESET
I
-
Reset Input Pin. Low (L) Active
The signal causes the internal register settings, etc. to be initialized.
B
PWDN
I
-
Power Down Mode Setting. Low (L) Active
When set to Low (L), this signal causes the wait status and sets the low
dissipation current mode. After the power down mode is removed,
RESET=L must set to Low until crystal clock oscillation becomes stable
(about 2 or 3 ms). After that RESET must set to High.
Take it into consideration that this period depends on the crystal in use.
B
IrRC
O
L
Remote control transmission Output pin
Transmission remote control when RC_EN= "H", RC_MODE= "L"
A
CTLA
O
L
Control Signal Output Pin
A
SCL
I
-
Serial clock
F
SDA
I/O
Input
Serial data I/O Pin
G
NIRQ
O
H
CPU Interrupt Request Output Pin (Ir remote control)
The signal goes “Low” when an interrupt condition takes place.
A
XIN/CLK48M
I
-
Crystal IN / External CLK Input
E
XOUT
O
-
Crystal OUT (N.C when external input clock is used)
E
TEST1-3
I
-
Test pins (These pins must be GND during normal operation.)
D
IrDA
PWDOWN
O
H
IrDA module control signal output pin
These pins must be OPEN for IrDA modules having no power-down pin.
A
VDD
-
-
Power supply pin
-
VIO1
-
-
Interface power supply voltage1
-
VIO2
-
-
Interface power supply voltage2
-
GND
-
-
Ground pin
-


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