
Ver: 1.0
Jan 23, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G576
Global Mixed-mode Technology Inc.
Typical PC-card Power-distribution application
Terminal Functions
TERMINAL
NAME
NO.
I/O
DESCRIPTION
AVCC
1,28
O
Switched output that delivers 0V, 3.3V, 5V, or high impedance to card
AVPPD1
2
I
Logic input that controls voltage of AVPP (see control-logic table)
AVPPD0
3
I
Logic input that controls voltage of AVPP (see control-logic table)
ASHDN
4
I
Logic input that shuts down AVPP/AVCC and sets AVPP/AVCC to high-impedance state
0
AVCCD
5
I
Logic input that controls voltage of AVCC (see control-logic table)
1
AVCCD
6
I
Logic input that controls voltage of AVCC (see control-logic table)
VCC3
7,21
I
3.3V VCC input for card power and/or chip power if 5V is not present
VCC5
8,9,22,23
I
5V VCC input for card power and/or chip power
GND
10,24
Ground
BOC
11
O
Logic-level overcurrent reporting output that goes low when an overcurrent condition exists
VCC12
12,26
I
12V VPP input card power
BVPP
13
O
Switched output that delivers 0V, 3.3V, 5V, 12V or high impedance to card
BVCC
14,15
O
Switched output that delivers 0V, 3.3V, 5V, or high impedance to card
BVPPD1
16
I
Logic input that controls voltage of BVPP (see control-logic table)
BVPPD0
17
I
Logic input that controls voltage of BVPP (see control-logic table)
BSHDN
18
I
Logic input that shuts down BVPP/BVCC and set BVPP/BVCC to high-impedance state
0
BVCCD
19
I
Logic input that controls voltage of BVCC (see control-logic table)
1
BVCCD
20
I
Logic input that controls voltage of BVCC (see control-logic table)
AOC
25
O
Logic-level overcurrent reporting output that goes low when an overcurrent condition exists
AVPP
27
O
Switched output that delivers 0V, 3.3V, 5V, 12V or high impedance to card
0.1F
AVCC
AVPP
V
CC1
V
CC2
PC Card
Connector
A
V
PP1
V
PP2
GND
0.1F
G576
0.1F
BVCC
BVPP
V
CC1
V
CC2
PC Card
Connector
B
V
PP1
V
PP2
0.1F
AOC
BOC
AVCCD0
AVCCD1
AVPPD0
AVPPD1
BVCCD0
BVCCD1
BVPPD0
BVPPD1
ASHDN
BSHDN
VCC12
VCC3
VCC5
PCMCIA
Controller
GND
12V
5V
3.3V
To CPU
From CPU
0.1F
1F
0.1F
AVCC
AVPP
V
CC1
V
CC2
PC Card
Connector
A
V
PP1
V
PP2
GND
0.1F
G576
0.1F
BVCC
BVPP
V
CC1
V
CC2
PC Card
Connector
B
V
PP1
V
PP2
0.1F
AOC
BOC
AVCCD0
AVCCD1
AVPPD0
AVPPD1
BVCCD0
BVCCD1
BVPPD0
BVPPD1
ASHDN
BSHDN
VCC12
VCC3
VCC5
PCMCIA
Controller
GND
12V
5V
3.3V
To CPU
From CPU
0.1F
1F