5 2007 Semtech Corp.
www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2455P
Device Connection
The EClamp2455P designed with ease of layout in
mind. The package has flow through design which
allows the designer to route the signals straight in and
out between the SIM port connector and the SIM
controller. The device is in a 8-pin SLP package.
Electrical connection is made to the 8 pins located at
the bottom of the device. A center tab serves as the
ground connection. Pin connections are noted in
Figure 1. All path lengths should be kept as short as
possible to minimize the effects of parasitic inductance
in the board traces.
Figure 1 - Pin Identification and Configuration
(Top Side View)
Figure 2 - SIM Protection
RST Out
CLK Out
Data Out
RST In
CLK In
Data In
Vcc
1
45
8
Gnd
NC
DATA OUT
RST In
CLK IN
DATA IN
Vcc
EClamp2455P
SIM Card
Connector
SIM Controller
CLK OUT
RST OUT
Reset
Clock
Data I/O
5V/3.3V/1.8V
1
45
8
Gnd
DATA OUT
RST In
CLK IN
DATA IN
Vcc
EClamp2455P
SIM Card
Connector
SIM ControllerSIM Controller
CLK OUT
RST OUT
Reset
Clock
Data I/O
5V/3.3V/1.8V
1
45
8
Gnd
