Embedded Sim Card Ic; I2C Interface; High Speed Usb Interface - SimCom SIM5218E Hardware Design

SIM5218E Hardware Design
Table 19: Pin description (Amphenol SIM card holder)
Pin Signal
USIM_VDD
C1
USIM_RST
C2
USIM_CLK
C3
GND
C5
VPP
C6
USIM_DATA
C7

3.9.3 Embedded SIM card IC

SIM5218E also supports Embedded SIM card IC, which is a dedicated, purpose-designed SIM
card. And it has been integrated in SIM5218E. SIM5218E supports switching between two USIM
cards (one is Embedded SIM card IC, and the other is external classical SIM card) by an AT
command.
：
*Note This feature will be supported by customization. Customer should provide information
written into Embedded SIM card IC.

3.10 I2C interface

SIM5218E contains an I2C interface. It is used for connecting peripheral equipment. Use AT
Command to read/write value of I2C peripheral equipment. Because I2C has been pulled up
in SIM5218E, there is no need to be pulled up by customer.
Table 20: PIN define of IIC interface
Pin Name
47 IIC_SDA
46 IIC_SCL
：
*Note IIC_SDA and IIC_SCL have been pulled up with two 2.2kR resistors to 2.6V in module.
So there is no need to pull them up in your application circuit.

3.11 High speed USB interface

SIM5218E contains a high speed universal serial bus (USB) interface. This interface is compliant
with the USB 2.0 specification. The speed is up to 480Mbps. The speed is up to 480Mbps. So
please pay attention to influence of junction capacitance of ESD component on USB data lines.
Typically, the capacitance value should be less than 4pF @1MHz.
Links to these and related specifications can be found at www.usb.org
SIM5218E_HD_V1.03
Description
SIM Card Power supply, it can identify automatically the SIM
Card power mode，one is 3.0V±10%, another is 1.8V±10%.
Current is about 10mA.
SIM Card Reset.
SIM Card Clock.
Connect to GND.
Connect to USIM_VDD
SIM Card data I/O.
Function
Serial interface data input and output
Serial interface clock input
40
Lever
11.06.2009