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| SI9712 Datasheet, PDF (4/8 Pages) Vishay Siliconix – PC Card (PCMCIA) Interface Switch—12-V Suspend Capability | |||
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Si9712
Vishay Siliconix
TIMING WAVEFORMS
SX
GND
3V
50%
VPP
SWX
GND
td(on)
90%
td(off)
FIGURE 1. VPP Switch Delay
3V
SX
GND
SWX
GND 10%
tSX(on)
90%
FIGURE 2. Switch Ramp
tSX(off)
S1 or S2
S3
VCC
50%
50%
VPP
50%
td(on)
td(off)
FIGURE 3. Delay from S1 or S2 to VPP Power-up
PIN CONFIGURATION AND DESCRIPTION
GND 1
S4 2
VPP 3
VPP 4
VCC 5
VCC 6
VCC 7
S1 8
SO-16
Si9712
16 SR
15 S3
14 +12 VIN
13 VCC
12 +5 VIN
11 +3.3 VIN
10 +3.3 VIN
9 S2
Top View
Note: Pins 5, 6, 7, and 13 must be connected
in the PCB for correct operation.
www.vishay.com
4
Pin Number
1.
2
3, 4
5, 6, 7, 13
8
9
10, 11
12
14
15
16
Function
Description
GND
S4
VPP
VCC
S1
S2
+3.3 VIN
+5 VIN
+12 VIN
S3
SR
Ground connection.
Control input for selecting +3.3 VIN to VCC. The PC
Card terminology for this pin is VCC_EN0.
Program and peripheral voltage to PC Card slot.
Supply voltage to slot.
Control input for selecting +12 VIN to VPP. The PC Card
terminology for this pin is VPP_EN1.
Control input for selecting VCC to VPP . The PC Card
terminology for this pin is VPP_EN0.
+3.3-V supply.
+5-V supply.
+12-V supply.
Control input for selecting +5 VIN to VCC. The PC Card
terminology for this pin is VCC_EN1.
Slew rate control pin, capacitor to GND defines
programmable ramp time.
Document Number: 70024
S-40755âRev. F, 19-Apr-04
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