U)Sim Card Interface; U)Sim Pin Definition; U)Sim Interface Circuit; U)Sim Card Connector With Card Detection Signal - Fibocom NL668-LA Series Hardware Manual

5.3 (U)SIM Card Interface

NL668-LA series module has built-in (U)SIM card interface, and supports 1.8V and 3.0V (U)SIM card.

5.3.1 (U)SIM Pin Definition

(U)SIM pin definition is shown in the following table:
Table 5-6 (U)SIM card pin
Pin name
USIM_PRESENCE
USIM_VDD
USIM_DATA
USIM_CLK
USIM_RESET

5.3.2 (U)SIM Interface Circuit

5.3.2.1 (U)SIM Card Connector with Card Detection Signal

(U)SIM circuit design requires use (U)SIM card connector, recommend chose with card detect signal that
support card hot swap function (Fibocom recommend: SIM016-8P-220P).
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
FIBOCOM NL668-LA Series Hardware Guide
Figure 5-8 Network indicator light reference circuits
I/O
I
PO
IO
O
O
Pin No. Description
13 Detect (U)SIM card for Hot-swap
14 (U)SIM Power
15 (U)SIM DATA
16 Clock Signal
17 Reset Signal
Page 30 of 61