Schematic Connection Guidance

4:47

Evaluating document queries.

Analyzing the schematic.

Clarifying schematic details.

I can sketch the current schematic symbol connection that exists in this part project.

I should note one limitation: I was able to read the existing terminals in the project, but I could not reliably extract the datasheet text in this session, so this is a drawing of the current symbol/pin mapping in the project, not a datasheet-verified application circuit. Flux’s own part-sync guidance says pin assignments should be taken from the datasheet and not guessed

Diagram

Current terminal mapping in this project

Signal	Project terminal	Pin Number
VCC	VCC	C1
RST	RST	C2
CLK	CLK	C3
GND	GND	C5
VPP	VPP	C6
I/O	I/O	C7
Card Detect	CD	CD
Extra pad	EP	8
Extra pad	EP	9
Extra pad	EP	10
Extra pad	EP	11

Practical connection view

Host signal	Connect to
SIM_VCC	VCC
SIM_RST	RST
SIM_CLK	CLK
SIM_DATA / SIM_IO	I/O
GND	GND
Card-detect GPIO	CD
VPP	VPP
Mechanical / shield pads	EP, EP, EP, EP

If you want, I can next do either of these:

make a clean pin-symbol drawing for this part, or
help you verify each terminal against the datasheet so the symbol is accurate.

Verify against datasheet

Clean symbol drawing

Show real SIM wiring

42 days

VCC

CLK

VPP

I/O

GND

RST

Reviews

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Project Name

SMN-303

Description

Self-bouncing 1.37mm Card Slot -40℃~+85℃ Nano SIM card SMD SIM Card Connectors ROHS SMN-303 SIM-SMD_SMN-303 LCSC Part Number: C266888 JLCPCB Part Class: Extended Part Manufactured by XUNPU(讯普)

Properties

Manufac…er Name

XUNPU(讯普)

Designator Prefix

Card

Datasheet URL

lcsc.com/datasheet/lcsc_datasheet_2306081648_XUNPU-SMN-303_C266888.pdf

Manufac… Number

SMN-303

LCSC Part Number

C266888

Product Info Url

lcsc.com/product-detail/Connector-Card-Sockets_XUNPU-SMN-303_C266888.html

Package …se Code

SIM-SMD_SMN-303

Part Type

SIM Card Connectors

JLCPCB P…rt Class

Extended Part

Connector Type

Card Slot

Gender

Female

Voltage Rating

Current Rating

0.5

Operatin…perature

-40℃~+85C

Pricing & Availability

See prices from popular manufacturers for your project.

Controls

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