BR24L04F-W Rohm, BR24L04F-W Datasheet - Page 20

• Manufacturer Part Number: BR24L04F-W
• Description: 5128 bit electrically erasable PROM
• Manufacturer: Rohm

Memory ICs
8) Notes for noise on V
9) The notice about the connection of controller
• About bypass capacitor
• About R
Noise and surges on power line may cause the abnormal function. It is recommended that the bypass capacitors
(0.1µF) are attached on the V
The attachment of bypass capacitors on the board near by connector is also recommended.
The open drain interface is recommended for SDA port in I
applied to SDA, insert a series resister R
current from PMOS of controller to NMOS of EEPROM.
R
S
also protects SDA pin from surges. Therefore, R
S
PRINT BASE
CC
SCL
SDA
IC
CC
"H" OUTPUT OF
CONTROLLER
and GND line beside the device.
CONTROLLER
GND
BR24L04-W / BR24L04F-W / BR24L04FJ-W
S
capacitor 10 to 100 F
between SDA pin of the device and a pull up resister R
The "H" output of controller
and the "L" output of EEPROM may cause
current overload to SDA line.
V
CC
S
R
is able to be used though SDA port is open drain.
PU
R
2
S
BR24L04FV-W / BR24L04FVM-W
C BUS. But, in the case that Tri-state CMOS interface is
EEPROM
ACK
"L" OUTPUT OF
EEPROM
SDA PIN
capacitor 0.01 to 0.1 F
PU
. It limits the
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