G574 View Datasheet(PDF) - Global Mixed-mode Technology Inc
Part Name
Description
Manufacturer
G574 Datasheet PDF : 16 Pages
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Global Mixed-mode Technology Inc.
G574
Dual-Slot PCMCIA/CardBus Power Controller
Features
Backward Compatible with G570
Fully Integrated VCC and Vpp Switching for Dual
Slot PC CardTM Interface
3-Lead Serial Interface Compatible With
CardBusTM Controllers
3.3V Low Voltage Mode
Meets PC Card Standards
RESET for System Initialization of PC Cards
12V Supply Can Be Disabled Except During
12V Flash Programming
Short Circuit and Thermal Protection
30 Pin SSOP
Compatible With 3.3V, 5V and 12V PC Cards
Low RDS(on) (180-mΩ 5V VCC Switch;
130 mΩ 3.3V VCC Switch)
Break-Before-Make Switching
Internal power-On Reset
Standby mode: 60mA current limit (TYP)
Application
Notebook PC
Electronic Dictionary
POS
Ordering Information
ORDER
NUMBER
G574SA
ORDER NUMBER
(Pb free)
G574SAf
Description
The G574 PC Card power-interface switch provides an
integrated power-management solution for two PC
Cards. All of the discrete power MOSFETs, a logic sec-
tion, current limiting, and thermal protection for PC Card
control are combined on a single integrated circuit (IC).
The circuit allows the distribution of 3.3V, 5V, and/or
12V card power by means of the Serial interface. The
current-limiting feature eliminates the need for fuses,
which reduces component count and improves reliabil-
ity.
The G574 features a 3.3V low voltage mode that allows
for 3.3V switching without the need for 5V supply. This
facilitates low power system designs such as sleep
mode and pager mode where only 3.3V is available.
The G574 incorporates a reset function, selectable by
one of two inputs, to help alleviate system errors. The
reset function enables PC card initialization concurrent
with host platform initialization, allowing a system reset.
Reset is accomplished by grounding the VCC and VPP
(flash-memory programming voltage) outputs, which
discharges residual card voltage.
This device also has the ability to program the xVpp
outputs independent of the xVCC outputs. A standby
mode that changes all output-current limits to 50mA
(typical) has been incorporated.
End equipment for the G574 includes notebook com-
puters, desktop computers, personal digital assistants
(PDAs), digital cameras and bar-code scanners.
The G574 is backward-compatible with the G570.
TEMP.
RANGE
-40°C to +85°C
PACKAGE
SSOP-30
Pin Configuration
Ver: 1.2
Jul 28, 2006
5V 1
5V 2
DATA 3
CLOCK 4
LATCH 5
RESET 6
12V 7
AVPP 8
AVCC 9
AVCC 10
AVCC 11
GND 12
NC 13
RESET 14
3.3V 15
G574
SSOP-30
30 5V
29 MODE
28 NC
27 NC
26 NC
25 NC
24 12V
23 BVPP
22 BVCC
21 BVCC
20 BVCC
19 STBY
18 OC
17 3.3V
16 3.3V
1
TEL: 886-3-5788833
http://www.gmt.com.tw
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