MIC2563A
Micrel
5V
System
Power
Supply
12V
(opt)
VPP IN VCC3 IN VCC5 IN
(opt)
VPP1
VPP2 PCMCIA
Card Slot
A
VCC
A EN0
A EN1
A V CC5_EN
PCMCIA
Card Slot
Controller
A V CC3_EN
MIC2563
VPP1
B EN0
B EN1
B V CC5_EN
B V CC3_EN
VPP2 PCMCIA
PCMCIA
Card Slot
Card Slot
B
VCC
Figure 5. PC Card Slot Power Control Application
without a 3.3V V
CC
Supply
Note: V
CC3
IN and V
CC5
IN lines are driven together. The MIC2563A is powered from the V
CC3
IN line. In this configuration,
V
CC
OUT will be 5V when either V
CC3
or V
CC5
is enabled.
RST#
VCC
20
SER_DATA
2
D
Q
19
1 CLR
4
74x175
9 CLK
D
Q
2
A_VPP_PGM (Pin 8)
3
D
Q
18
5
D
Q
7
A_VPP_VCC (Pin 7)
4
D
Q
17
12
D
Q
10
A_VCC5_EN (Pin 5)
5
D
Q
16
13
D
Q
15
A_VCC3_EN (Pin 6)
6
D
Q
15
4
D
Q
2
B_VPP_PGM (Pin 22)
7
D
Q
14
5
D
Q
7
B_VPP_VCC (Pin 21)
8
D
Q
13
12
D
Q
10
B_VCC3_EN (Pin 19)
9
D
Q
12
10
13
D
Q
15
B_VCC5_EN (Pin 20)
SER_CLK
11
74x574
1
1 CLR
9 CLK
74x175
SER_LATCH
Figure 6. Interfacing the MIC2563A with a Serial-Output Data Controller
Pinouts shown are for the MIC2563A-1 and a three-wire serial controller.
M9999-110503
10
March 2004
MICREL [ MICREL SEMICONDUCTOR ]
