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BU9929FV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BU9929FV
기능 I2C BUS interface
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BU9929FV 데이터시트, 핀배열, 회로
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BU9929FV
Multimedia ICs
I2C BUS interface, general purpose I/O
ports with condition watching function
BU9929FV
ROHM’s GPIO is a general-purpose IO that contains I2C BUS interface. It also contains monitoring function that conveys
a change of the signal level in terminal to the host system via interrupt terminal or I2C BUS.
!Applications
Notebook PC, PC, VCR, TV etc. and other systems with I2C BUS.
!Features
1) I2C BUS interface
2) General purpose I/O port 16bits
3) State monitoring function to monitor all terminals
4) State detection signal serial output by I2C BUS master function
5) Output port of state detection signal
6) State detection ON/OFF setting input port during the default status
7) 32.768kHz clock input
8) Power supply voltage 3.3V / 5.0V
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Supply voltage
VDD
7.0
Power dissipation
Pd
640
Operating temperature
Topr
15 to +75
Storage temperature
Tsig
55 to +125
Terminal supply voltage
VIN
GND0.5 to VDD+0.5
Temperature derating : 6.4mW/˚C over Ta=25˚C
Radiation resistance is not included in the design.
Rohm CO., Ltd is a licensee of I2C BUS from Philips Semiconductors.
!Recommended operating conditions (Ta=25°C)
Parameter
Min.
Operating supply voltage range 3.0
Typ.
Max.
5.5
Unit
V
Unit
V
mW
˚C
˚C
V
1/11
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BU9929FV pdf, 반도체, 판매, 대치품
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Multimedia ICs
Pin. No
Pin. Name
12 INT
27 CLK
28 VDD
15 AD0
16 AD1
4 TEST0
17 TEST1
I/O circuit
BU9929FV
Pin Description
Output terminal for condition change
detection.
Nch open drain output.
Clock input terminal.
32.768KHz should be put.
At Shut Down mode, clock supply into
this IC will be shut down.
Power terminal.
3.3V/5.0V should be put in.
Input terminal for setting of I2C BUS
Slave address lower 2 bits.
IC TEST Pin.
"L" Input required for normal operation.
IC TEST Pin.
"L" Input required for normal operation.
4/11
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BU9929FV 전자부품, 판매, 대치품
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Multimedia ICs
BU9929FV
1. Data write mode
St SLAVE ADDRESS W A COMMAND BYTE A WRITE DATA 1 A WRITE DATA 2 A Sp
PION7 PION0
PIO15 PIO8
Command register : At reset, D0 to D7 are ”0”.
D7 D6 D5 D4 D3 D2 D1 D0
SHT DWN INT SEL DOUT SEL OUT ON DIR ON BYTE SEL EDGE SEL DET ON
D7 : Shut Down mode
0 : Shut down mode off (Normal operation mode)
1 : Shut down mode on
D6 : INT output method choice
0 : LOW output
1 : Output of LOW pulse equivalent for one period of CLK
D5 : Detection result output choice
0 : Serial output. INT pin is also valid.
1 : Serial output (I2C MASTER function) off. Only INT pin is valid.
D4 : Output port writing set
0 : Writing invalid
1 : Writing valid. But, a port, which is indicated as input, is invalid.
Following Write data 2byte-0 : “L” output, 1 : “H” output
D3 : I / O direction set
0 : Direction set invalid
1 : Direction set valid
Following Write data 2byte-0 : input, 1 : output
D2 : Watching object input choice
0 : PION0 to PION7
1 : PION8 to PIO15
D1 : Change detection mode
0 : Falling edge
1 : Both rising and falling edge
D0 : Input port condition watching mode
0 : Invalid
1 : Valid
7/11
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BU9929FV

I2C BUS interface

Rohm
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