BU9929FV Rohm Semiconductor, BU9929FV Datasheet

IC I/O EXPANDER I2C 16B 28SSOP

BU9929FV

Manufacturer Part Number
BU9929FV
Description
IC I/O EXPANDER I2C 16B 28SSOP
Manufacturer
Rohm Semiconductor
Datasheet

Specifications of BU9929FV

Interface
I²C
Number Of I /o
16
Interrupt Output
Yes
Frequency - Clock
400kHz
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-15°C ~ 75°C
Mounting Type
Surface Mount
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
BU9929FV-E2
Manufacturer:
CY
Quantity:
18
Part Number:
BU9929FV-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
Multimedia ICs
I
ports with condition watching function
BU9929FV
ROHM’s GPIO is a general-purpose IO that contains I
a change of the signal level in terminal to the host system via interrupt terminal or I
! ! ! ! Applications
Notebook PC, PC, VCR, TV etc. and other systems with I
! ! ! ! Features
1) I
2) General purpose I/O port 16bits
3) State monitoring function to monitor all terminals
4) State detection signal serial output by I
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)
! ! ! ! Recommended operating conditions (Ta=25°C)
Operating supply voltage range
∗Temperature derating : 6.4mW/˚C over Ta=25˚C
2
Supply voltage
Power dissipation
Operating temperature
Storage temperature
Terminal supply voltage
2
Radiation resistance is not included in the design.
Rohm CO., Ltd is a licensee of I
C BUS interface, general purpose I/O
C BUS interface
Parameter
Parameter
2
C BUS from Philips Semiconductors.
Symbol
Topr
Tsig
V
V
Pd
DD
IN
Min.
3.0
2
Typ.
C BUS master function
GND−0.5 to V
−55 to +125
−15 to +75
Max.
Limits
5.5
640
7.0
2
C BUS interface. It also contains monitoring function that conveys
DD
+0.5
2
Unit
C BUS.
V
Unit
mW
˚C
˚C
V
V
2
C BUS.
BU9929FV
1/11

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BU9929FV Summary of contents

Page 1

... Recommended operating conditions (Ta=25°C) Parameter Min. Operating supply voltage range 3 BUS interface. It also contains monitoring function that conveys 2 C BUS BUS master function Limits Unit 7.0 V 640 mW −15 to +75 ˚C −55 to +125 ˚C GND−0 +0 Typ. Max. Unit − 5.5 V BU9929FV 2 C BUS. 1/11 ...

Page 2

... TEST0 PION0 5 PION1 6 PION2 7 8 PION3 PION4 9 PION5 10 PION6 11 INT 12 PION7 13 GND 14 TIMING CONTROLLER DATA LATCH BLOCK SLAVE ADDRESS 2 BITS PIO BUFFER BU9929FV DEFAULT STATUS DS EDGE DETECT INT BLOCK CLK RESB 26 25 PIO15 PIO14 24 23 PIO13 PIO12 22 21 PIO11 20 PIO10 19 PIO9 ...

Page 3

... This waits for condition detection function of input. Output will be Hi-Z at Shut Down mode. 5V input is possible when this IC is operated by 3.3V. Standard input/output terminal. Input at TTL level. This waits for condition detection function of input. Output will be Hi-Z at Shut Down mode. GND terminal BU9929FV Pin Description 3/11 ...

Page 4

... 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 I Slave address lower 2 bits. IC TEST Pin. "L" Input required for normal operation. IC TEST Pin. "L" Input required for normal operation. BU9929FV Pin Description 2 C BUS 4/11 ...

Page 5

... 0.0 0.2 0 0.0 0.2 0 − 100 250 ns CL=400pF BU9929FV Conditions Test Pin No 15-17 3-5, 11, 13 15-27 5-11, 13 3-5, 11, 13 15-27 3-5, 11, 13 15-27 18-25 =4mA 5-13, 18-25 =4mA 1, 2 =6mA =6mA 1, 2 5/11 ...

Page 6

... Timing) SCL SDA (Data Timing) SCL SDA DAT (Stop Timing) SCL SDA =5.0V, Ta=25° LSB Min. Max. Unit f SCL 0 400 kHz − µs 0.6 − µs 0.6 − 100 ns µs 0 0.9 − µs 0 STA STA DAT STO BU9929FV 6/11 ...

Page 7

... 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 WRITE DATA 1 A PION7 − PION0 PIO15 − PIO8 DIR ON BYTE SEL EDGE SEL BU9929FV WRITE DATA DET ON 7/11 ...

Page 8

... IC PAD Input Schmitt Input Port sampling timing As shown below, BU9929FV is sampling for Input Ports with the rising edges of CLK. Therefore it is necessary that Input Ports are keeping at least 1 CLK cycle, for their certain inputs. Watching Ports CLK A READ DATA 2 PION7 − ...

Page 9

... A WRITE DATA 1 PION7 − PION0 A WRITE DATA 1 PION7 − PION0 the case of Arbitration; Output is delayed command, this pin will be invalid, and the set by I BU9929FV A WRITE DATA PIO15 − PIO8 AND Output of every bits of the watching data command, the set of this pin will be ...

Page 10

... Watching Ports F6 2 Output for I C BUS CLK INT OUTPUT St SLAVE ADDRESS C7 A4 " A term" St SLAVE ADDRESS BU9929FV 2 C Data A OUTPUT "F8" OUTPUT "84" OUTPUT "84hex data" which is the result of AND data for "F6", "C7" and " A4". 10/11 ...

Page 11

... Contents of each register before shut down will be saved by the shut down release External dimensions (Unit : mm) 10.0±0 0.65 0.22±0.1 0.3Min. SSOP-B28 AA St SLAVE ADDRESS 0.1 BU9929FV R A OUTPUT "AA" Data "78h" is not kept, the output data is immediately before sampled data. 11/11 ...

Page 12

Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...

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