BU9929FV Rohm Semiconductor, BU9929FV Datasheet - Page 11

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

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

Multimedia ICs
(b) When command D6=1
INT pin outputs ”I clock cycle pulse” when detection of watching port is received. In the case that the output data is the
data whish is sampled immediately before the returning ACK.
4. Shut down mode
By command D7=1, this IC can be set to Shut down mode, which can save current consumption. At Shut down mode,
operation of CLK input pin will be stopped, and input of CLK into this IC can be shut down. Also, for every PIO/PION pins,
pins under output condition will be saved as Hi-Z.
At Shut down mode, condition-watching function can not be used.
Contents of each register before shut down will be saved by the shut down release.
! ! ! ! External dimensions (Unit : mm)
Watching Ports
Output for I
CLK
INT OUTPUT
28
1
0.65
2
10.0±0.2
C BUS
0.22±0.1
15
14
SSOP-B28
0.3Min.
CLK 1 cycle pulse
78
0.1
St
AA
SLAVE ADDRESS
R
A
Data "78h" is not kept, the
output data is immediately
before sampled data.
OUTPUT "AA"
BU9929FV
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