Product Info

LTE Standard Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design
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3.2. Pin Description
The following tables show the pin definition and description of the 52 pins on EC25 Mini PCIe.
Table 3: I/O Parameters Definition
Table 4: Pin Description
Type Description
DI Digital Input
DO Digital Output
IO Bidirectional
OC Open Collector
PI Power Input
PO Power Output
OD Open drain
Pin No.
Mini PCI Express
Standard Name
EC25 Mini PCIe
Pin Name
I/O Description Comment
1 WAKE# WAKE# OC
Output signal used to
wake up the host.
2 3.3Vaux VCC_3V3 PI
3.0V~3.6V, typically
3.3V DC supply
3 COEX1 COEX_UART_RX DI
LTE/WLAN&BT
coexistence receive
signal
It is prohibited
to be pulled up
high before
startup.
4 GND GND Mini card ground
5 COEX2 COEX_UART_TX DO
LTE/WLAN&BT
coexistence transmitting
signal
It is prohibited
to be pulled up
high before
startup.
6 1.5V NC Not connected
7 CLKREQ# RESERVED Reserved