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STMEC001 Datasheet(PDF) 4 Page - STMicroelectronics

Part # STMEC001
Description  Power interface switch for ExpressCardTM
PDF  19 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMEC001 Datasheet(HTML) 4 Page - STMicroelectronics

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Pin description
STMEC001
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Table 2.
Pin assignments
Pin
Name
Type
Description
QFN16
TSSOP20
-
1
NC
-
No connection
15
2
/SYSRST
I
System Reset input - active low, logic level signal,
internal 150 K
Ω pull-up
16
3
/SHDN
I
Shutdown input - active low, logic level signal,
internal 150 K
Ω pull-down
14
/STBY
I
Standby input - active low, logic level signal, internal
150 K
Ω pull-down
2
5
VIN_3.3V
I
3.3 V input for VO_3.3V
-
6
VIN_3.3V
I
3.3 V input for VO_3.3V
3
7
VO_3.3V
O
Switched output that delivers 0 V, 3.3 V or high
impedance to card
4
8
VO_3.3V
O
Switched output that delivers 0 V, 3.3 V or high
impedance to card
5
9
/PERST
O
A logic level power good to slot (delayed)
-
10
NC
-
No connection
6
11
GND
-
Ground
-
12
NC
-
No connection
-
13
NC
-
No connection
7
14
/CPUSB
I
Card Present input for USB cards, internal 150 K
Ω
pull-up
8
15
/CPPE
I
Card Present input for PCI ExpressCard, internal
150 K
Ω pull-up
9
16
VO_1.5V
O
Switched output that delivers 0 V, 1.5 V or high
impedance to card
-
17
VO_1.5V
O
Switched output that delivers 0 V, 1.5 V or high
impedance to card
10
18
VIN_1.5V
I
1.5 V input for 1.5Vout
-
19
VIN_1.5V
I
1.5 V input for 1.5VOUT
11
20
VO_3.3VAUX
O
Switched output that delivers 0 V, 3.3 V or high
impedance to card
12
21
VIN_3.3VAUX
I
3.3 V input for VO_3.3VAUX and chip power
13
22
RCLKEN
I/O
Reference Clock Enable signal. As an output, a
logic level power good to host for slot (open drain).
As an input, if kept inactive by the host, prevents
/PERST from being de-asserted, internal 150 K
Ω
pull-up
14
23
/OC
O
Over-current status output for slot (open drain)
-
24
NC
-
No connection



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