MIC2558
Micrel
MIC2558
PCMCIA Dual Card Socket V
PP
Switching Matrix
General Description
The MIC2558 Dual V
PP
Matrix switches the four voltages
required by PCMCIA (Personal Computer Memory Card
International Association) card V
PP1
and V
PP2
Pins. The
MIC2558 provides selectable 0V, 3.3V, 5.0V, or 12.0V (鹵5%)
from the system power supply to V
PP1
and V
PP2
. Output
voltage is selected by two digital inputs per V
PP
pin. Output
current ranges up to 120mA. Four output states, V
PP
, V
CC
,
high impedance, and active logic low are available, and V
PP1
is independent of V
PP2
. An auxiliary control input determines
whether the high impedance (open) state or low logic state is
asserted.
In standby mode or full operation, the device draws very little
quiescent current, typically less than 1碌A(chǔ).
The MIC2558 is available in a 14-pin SOIC and a 14-pin
plastic DIP.
Features
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Complete PCMCIA V
PP
Switch Matrix in a Single IC
Dual Matrix allows independent V
PP1
and V
PP2
Digital Selection of 0V, V
CC
, V
PP
, or High
Impedance Output
No V
PPOUT
Overshoot or Switching Transients
Break-Before-Make Switching
Ultra Low Power Consumption
120mA V
PP
(12V) Output Current
Optional Active Source Clamp for Zero Volt Condition
3.3V or 5V Supply Operation
14-Pin SOIC Package
Part Number
Temperature Range
鈥?0擄C to +85擄C
鈥?0擄C to +85擄C
Package
14-pin SOIC
14-SO Tape & Reel*
Ordering Information
MIC2558BM
MIC2558BM T&R
Applications
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PCMCIA V
PP
Pin Voltage Switch
Power Supply Management
* 2,500 Parts per reel.
Typical Application
VPP IN
VCC
+12V +3.3V or +5V
VDD
+5V
Pin Configuration
VPP OUT1
NC
+VCC1
VPP IN
+VCC2
GND
VPP OUT2
14
2
13
VDD
Hi-Z/Low1
EN01
EN11
Hi-Z/Low2
EN02
EN12
0.1碌F
VPP OUT 1
2
14
13
3
12
MIC2558
4
11
5
6
7
10
9
8
0.1碌F
1碌F
1碌F
3
12
MIC2558
4
11
5
6
7
10
9
8
Hi-Z/ Low 1 Control
EN01
EN11
Hi-Z/ Low 2 Control
EN02
EN12
VPP OUT 2
0.1碌F
EN1
0
0
0
1
1
EN0 Hi-Z/Low V
PP OUT
0
0
1
0
1
0
1
x
x
x
0V, (Sink current)
Hi-Z (No Connect)
V
V
CC
PP
(3.3V or 5.0V)
Hi-Z (No Connect)
2-10
1997
MIC2558 PDF文件相關(guān)型號
MIC2558BMT
MIC2558相關(guān)型號PDF文件下載
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描述
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