MB3807A Fujitsu Media Devices, MB3807A Datasheet - Page 3

• Manufacturer Part Number: MB3807A
• Description: Power Management Switching IC
• Manufacturer: Fujitsu Media Devices

Pin No.
PIN DESCRIPTION
13, 14
11, 12
15
10
16
1
9
2
7
4
5
3
6
8
Pin name
SWOUT
SWOUT
SWIN1
SWIN1
SWIN2
SWIN2
EN1
EN1
EN0
EN0
DLY
DLY
GND
V
CC
A
B
A
B
A
B
A
B
A
B
A
B
Ground pin
These pins turn the corresponding switches on and off depending on the PCMCIA
compatible signals, as shown in “LOGICAL OPERATION TABLE.”
These pins connect the 12-V power supply for writing data to flash memory. When
the SW1 is turned on, the voltage at the SWIN1 pin is output to the SWOUT pin.
These pins also serve as power supply pins for the charge pump on the SW1 side.
For switching, the pins require a voltage higher than V
These pins connect the 3.3/5.0-V power supply for reading data from flash memory.
When the SW2 is on, the voltage at the SWIN2 pin is output to the SWOUT pin.
These pins also serve as power supply pins for the charge pump on the SW2 side.
For switching, the pins require a voltage higher than V
These pins are output pins of the switch. A pair of two pins are used commonly as
either SWOUT
These pins are connected to the V
These pins control the switch ON time.
The ON time is controllable using an external capacitor.
Leave these pins open when not in use. Note that a voltage of about 25 V is gener-
ated when the pins are open. Since high impedance is required, be careful when
mounting the device not to generate current leakage.
Power supply pin
A
or SWOUT
B
pins.
PP
Function
pin of the flash memory.
CC
CC
.
.
MB3807A
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