Part Data Audit and Verification

Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, 3v3, gnd_1 gnd_2 etc Also can you place them into their respective sections based on their functions NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function

Worked for 13 sec

flux

I’ll group each pin into exactly one functional section based on the A7670X R2 table, using Section for the block and Pin Group for the unique signal/rail subgroup (for example VBAT, VBUS, GND_1, GND_2, UART, USB).

Worked for 3 mins 33 sec

flux

Done. I assigned every A7670C-LASE pin to exactly one functional Section and one Pin Group, using unique groups for repeated physical pads like VBAT_55/56/57, GND_02, GND_17, etc., so no pin is double-counted.

I also corrected a few pin types from the newer A7670X R2 table and updated A7670C-LASE Part Audit with the grouping scheme and validation result.

Create visual grouping

Verify footprint mapping

Add section documentation

Review naming consistency

Export pin table

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A7670C-LASE Part Audit

Scope

Reviewed the current Flux part project for SIMCom A7670C-LASE against available official/public part information: MPN, package, pin count, description, project properties, schematic symbol terminals, and PCB footprint pad count.

Current Flux Part Metadata

Table

Field	Current value
Project / part name	A7670C-LASE
Manufacturer Part Number	A7670C-LASE
Manufacturer	SIMCOM(芯讯通无线科技)
LCSC Part Number	C2888406
JLCPCB Part Class	Extended Part
Designator Prefix	U
Package / case	LGA-124_L24.0-W24.0-P1.0-A7670C-LASS
Symbol terminals	124 terminal components
Footprint pads	124 PCB pads
Existing Datasheet URL before audit	Not present

Datasheet / Source URL Update

I could not retrieve a direct official PDF URL from SIMCom's site, but the official SIMCom A7670X product page exposes the relevant download entry:

Official product/download page set as Datasheet URL: https://cn.simcom.com/product/A7670X.html
Latest matching official document listed there: A7670X R2硬件设计手册_V1.14, updated 2026-03-18.
Related official legacy document: A7670C_R2_硬件设计手册_V1.06.

The project property Datasheet URL was added with the SIMCom product/download page. Implementation Details, Domain, Connectivity, and nominal Operating Voltage were also updated.

Key Specs Found

Table

Spec	Datasheet / official-source value
Module family	A7670X / A7670C R2 cellular module
Variant group	A7670C includes LASE / LASC variants
Cellular category	LTE Cat 1; GSM support also listed
A7670C-LASE bands	EGSM900, DCS1800, LTE-FDD B1/B3/B5/B8, LTE-TDD B34/B38/B39/B40/B41
Package style	LGA + LCC module
Package/pin count	124 pins: 80 outer LCC pins + 44 inner LGA pins
Dimensions	24.0 mm × 24.0 mm; height about 2.3 to 2.4 mm depending source/version
Nominal VBAT	3.8 V
VBAT operating range	3.4 V to 4.2 V
USB VBUS operating range	3.0 V to 5.4 V, 5.0 V typical
Peak supply current	Up to about 2 A during transmit bursts; supply should support >=2 A and keep droop <300 mV
Interfaces	USB, UART, debug UART, SPI, I2C/CI2C, GPIO, ADC, USIM1, USIM2, LCD, audio, GNSS, camera-related pins
RF pins	RF_ANT, GNSS_ANT, BT_ANT

Symbol / Pin Cross-Check Summary

The Flux symbol has the correct total pin count (124) and most functional groups are present. However, many terminal names are aliases or generic GPIO names rather than the primary names in the A7670X R2 hardware-design pin table. All terminal Pin Type values are currently Unspecified, and terminal-level Pin Description properties are absent, so the symbol is not fully datasheet-enriched.

Exact / acceptable matches

The following critical pins match exactly or are obvious naming equivalents:

PWRKEY pin 1
GND pins 2, 17, 18, 29, 39, 45, 46, 54, 58, 59, 61-65, 69-89, 91, 92, 94
TXD pin 9, RXD pin 10
SPI_CLK pin 11, SPI_CS pin 12, SPI_MOSI pin 13, SPI_MISO pin 14
RESET pin 16
VBUS pin 24, ADC pin 25, USB_DP pin 27, USB_DM pin 28
USIM1_VDD/DATA/CLK/RST/DET pins 30-34
EAR_P/EAR_N pins 40/41, MIC_P/MIC_N pins 42/43
UART3_RXD/TXD pins 49/50
VBAT_ADC pin 51
VBAT pins 55/56/57
RF_ANT pin 60, GNSS_ANT pin 90, BT_ANT pin 93
GNSS_TXD/RXD pins 95/96, GNSS_PWRCTL pin 98, 1PPS pin 100
USIM2_DATA/CLK/VDD/RST/DET pins 108-112
NC pins 113/114/115
GNSS_VBKP pin 116

Name mismatches / aliases to review

Table

Pin	Flux terminal name	Datasheet primary name	Assessment
3	AP_WAKEUP	DTR	Mismatch; AP_WAKEUP may be a function/alias but not the primary pin-table name.
4	GPIO_00	RI	Mismatch.
5	GPIO_01	DCD	Mismatch.
6	GPIO_02	USB_BOOT	Mismatch; USB_BOOT is important for boot behavior.
7	GPIO_03	CTS	Mismatch.
8	GPIO_04	RTS	Mismatch.
15	VDD_1V8	VDD_EXT	Naming mismatch; likely same external 1.8 V output, but datasheet primary name should be used or described.
19	GPIO_05	GPIO1	Numbering mismatch.
20	GNSS_PWR_EN/MK_IN_3	MK_IN_3	Extra GNSS_PWR_EN alias; verify variant-specific function.
21	GPIO_07/MK_OUT_3	MK_OUT_3	Extra GPIO alias; primary name differs.
22	UART_LOG_RX	DEBUG_RXD	Naming mismatch / likely equivalent debug UART receive.
23	UART_LOG_TX	DEBUG_TXD	Naming mismatch / likely equivalent debug UART transmit.
26	GPIO_17	GPIO2	Numbering mismatch.
35	GPIO_13/MK_OUT_6	MK_OUT_6	Extra GPIO alias; primary name differs.
36	GPIO_14/MK_IN_6	MK_IN_6	Extra GPIO alias; primary name differs.
37	I2C_SDA	CI2C_SDA	Naming mismatch; datasheet uses CI2C_SDA.
38	I2C_SCL	CI2C_SCL	Naming mismatch; datasheet uses CI2C_SCL.
44	GPIO_15/MK_OUT_2	MK_OUT_2	Extra GPIO alias; primary name differs.
47	GPIO_16/MK_IN_2	MK_IN_2	Extra GPIO alias; primary name differs.
48	GPIO_08	GPIO3	Numbering mismatch.
52	GPIO_09	NETLIGHT	Mismatch; NETLIGHT is a named status output.
53	GPIO_18	GPIO4	Numbering mismatch.
66	GPIO_10	STATUS	Mismatch; STATUS is a named status output.
67	GPIO_11/MK_OUT_5	MK_OUT_5	Extra GPIO alias; primary name differs.
68	GPIO_12/MK_IN_5	MK_IN_5	Extra GPIO alias; primary name differs.
97	1V8_GNSS	VDD_GNSS	Naming mismatch; datasheet primary name is VDD_GNSS.
99	VDD_2V8	VDD_AUX	Naming mismatch; verify voltage/function.
101	GPIO_19/LCD_BL_PWM	LCD_BL_PWM	Extra GPIO alias; primary name differs.
102	GPIO_20/LCD_SPI_CLK	LCD_SPI_CLK	Extra GPIO alias; primary name differs.
103	GPIO_21/LCD_SPI_TXD	LCD_SPI_TXD	Extra GPIO alias; primary name differs.
104	GPIO_22/LCD_SPI_RXD	LCD_SPI_RXD	Extra GPIO alias; primary name differs.
105	GPIO_23/LCD_SPI_CS	LCD_SPI_CS	Extra GPIO alias; primary name differs.
106	GPIO_24/LCD_RST	LCD_RST	Extra GPIO alias; primary name differs.
107	GPIO_25/LCD_DCX	LCD_DCX	Extra GPIO alias; primary name differs.
117	GPIO_26	CAM_I2C_SDA	Mismatch.
118	GPIO_27	CAM_I2C_SCL	Mismatch.
119	GPIO_28	CAM_PWDN	Mismatch.
120	GPIO_29	CAM_RST	Mismatch.
121	GPIO_30	CAM_MCLK	Mismatch.
122	GPIO_31	CAM_SPI_D0	Mismatch.
123	GPIO_32	CAM_SPI_D1	Mismatch.
124	GPIO_33	CAM_SPI_CLK	Mismatch.

Footprint Cross-Check

Table

Check	Result
Pad count	Pass: 124 pads found, matching A7670X R2 124-pin package.
Package size	Generally consistent with 24 mm × 24 mm module family.
Package style	Project package text says LGA-124, while datasource describes LGA+LCC with 80 outer LCC + 44 inner LGA pins. Recommend renaming package metadata to reflect LGA+LCC/LCC-124 style.
Pad geometry	Sampled pads show outer-edge rectangular/circular pads and inner square pads consistent with mixed LCC/LGA layout style, but a full dimensional audit against Figure 3/4 requires direct mechanical drawing access.
Copper layer setup	Layout summary reports 0 copper layers in the part-project board setup, which is typical/irrelevant for a footprint asset but should not be interpreted as an application PCB stackup.

Flagged Issues

Datasheet URL was missing — fixed by setting the official SIMCom product/download page.
Symbol terminal names are not consistently datasheet-primary names — several pins use GPIO-number aliases or product-specific aliases instead of the A7670X R2 hardware manual names.
Pin descriptions are missing — no terminal-level Pin Description properties were found.
Pin electrical types are all Unspecified — power, ground, input, output, bidirectional, analog, RF, and NC pins should be typed for better ERC and downstream usability.
Package metadata is slightly ambiguous — current package says LGA-124..., while official/public data describes the R2 module as LGA+LCC, 124 pins, 80 outer LCC + 44 inner LGA.

Recommended Fixes

Update terminal names to datasheet primary names, or add datasheet-primary names in Pin Description if aliases are intentionally preserved.
Add Pin Description for every terminal from the A7670X R2 hardware-design pin description table.
Set Pin Type for each terminal group:
- Power input: VBAT, VBUS
- Power output/reference: VDD_EXT/VDD_1V8, VDD_GNSS, VDD_AUX/2V8, USIM supplies
- Ground: all GND pins
- RF: RF_ANT, GNSS_ANT, BT_ANT
- Digital I/O: UART, SPI, I2C/CI2C, GPIO, LCD, camera, USIM signals
- Analog/audio: ADC, VBAT_ADC, MIC_P/N, EAR_P/N
- NC: pins 113-115
Rename or clarify package metadata to LGA+LCC-124_24x24mm_P1.0_A7670C_R2 or similar.
If exact dimensional verification is required, download the official A7670X R2硬件设计手册_V1.14 from SIMCom and compare every pad coordinate/size against Figures 3 and 4.

Fix Applied — 2026-06-03

The symbol terminal metadata has been updated against the A7670X R2 pin definition table:

Renamed all alias/non-primary terminal names to the A7670X R2 primary pin names.
Added datasheet-based Pin Description values for all 124 terminals.
Set Pin Type to Flux-standard electrical types mapped from the datasheet codes:
- DI / AI → Input
- DO / AO → Output
- DIO / AIO → Bi-Directional
- PI → Power In
- PO → Power Out
- GND → Ground
- NC → Not Connected
Added the project-level Part Type value RF Transceiver to clear the remaining part-review metadata warning.

Post-fix validation: component review checks for terminals, terminal parametrics, terminal pin numbers, and missing properties returned no ERROR/WARNING/UNCERTAIN results.

Fix Applied — Functional Pin Grouping — 2026-06-03

Pins were organized into exactly one functional Section each, with Pin Group used for the local bus/rail subgroup. No pin was intentionally duplicated across multiple functional sections.

Grouping scheme applied:

Table

Section	Pin groups used	Notes
Power Rails	`VBAT_55`, `VBAT_56`, `VBAT_57`, `1V8_OUTPUT`, `3V0_OUTPUT`	Main battery input pins are kept as separate physical groups to avoid double-counting high-current pads.
Ground	`GND_02`, `GND_17`, `GND_18`, `GND_29`, `GND_39`, `GND_45`, `GND_46`, `GND_54`, `GND_58`, `GND_59`, `GND_61`–`GND_65`, `GND_69`–`GND_89`, `GND_91`, `GND_92`, `GND_94`	Each GND pad is uniquely grouped by pin number.
Power Control	`PWRKEY`	Power on/off control input.
Boot and Reset	`USB_BOOT`, `RESET`	Boot/download and hardware reset pins.
Main UART	`UART0_DATA`, `UART0_FLOW`, `UART0_MODEM`	TXD/RXD, RTS/CTS, DTR/RI/DCD.
Debug UART	`DEBUG_UART`	DEBUG_RXD / DEBUG_TXD.
UART3	`UART3`	UART3_RXD / UART3_TXD.
SPI Interface	`SPI`	SPI_CLK / CS / MOSI / MISO.
USB	`USB_VBUS`, `USB_DP_DM`	VBUS and USB 2.0 differential pair.
USIM1	`USIM1_POWER`, `USIM1_SIGNAL`, `USIM1_DETECT`	USIM1 supply, data/clock/reset, and detect.
USIM2	`USIM2_POWER`, `USIM2_SIGNAL`, `USIM2_DETECT`	USIM2 supply, data/clock/reset, and detect.
I2C	`CI2C`	CI2C_SDA / CI2C_SCL.
GPIO	`GPIO`	GPIO1–GPIO4 only. Other multifunction pins were grouped by their primary datasheet function instead of GPIO alias.
Keypad Matrix	`KEYPAD_IN`, `KEYPAD_OUT`	MK_IN_x and MK_OUT_x pins.
Audio	`EARPHONE_OUT`, `MIC_INPUT`	Differential earpiece output and microphone input.
Analog and Status	`ADC`, `VBAT_ADC`, `STATUS_INDICATORS`	ADC inputs plus NETLIGHT/STATUS outputs.
RF Antennas	`MAIN_RF_ANT`, `GNSS_ANT`, `BT_ANT`	Main cellular, GNSS, and Bluetooth antenna interfaces.
GNSS	`GNSS_POWER`, `GNSS_BACKUP_POWER`, `GNSS_UART`, `GNSS_CONTROL`, `GNSS_TIMING`	GNSS supply/control/serial/1PPS pins.
LCD Interface	`LCD_SPI`, `LCD_CONTROL`	LCD SPI pins, reset, DCX, and backlight PWM.
Camera Interface	`CAM_I2C`, `CAM_CONTROL`, `CAM_CLOCK`, `CAM_SPI`	Camera I2C/control/MCLK/SPI pins.
No Connect	`NC_113`, `NC_114`, `NC_115`	Each NC pad is separately identified and kept in the No Connect section.

Corrections made during grouping:

VBUS pin type set to Power In.
VDD_GNSS set to Power In per the A7670X R2 table.
GNSS_PWRCTL set to Input per the A7670X R2 table.
LCD_SPI_TXD, CAM_SPI_D0, and CAM_SPI_D1 set to Bi-Directional where the table indicates DIO/bidirectional function.
GNSS_ANT set to Bi-Directional to match the antenna interface behavior.

Post-grouping validation: sampled terminals show the expected Section and Pin Group assignments, and component review checks for terminal metadata still return no ERROR/WARNING/UNCERTAIN results.

Scope
Current Flux Part Metadata
Datasheet / Source URL Update
Key Specs Found
Symbol / Pin Cross-Check Summary
Exact / acceptable matches
Name mismatches / aliases to review
Footprint Cross-Check
Flagged Issues
Recommended Fixes
Fix Applied — 2026-06-03
Fix Applied — Functional Pin Grouping — 2026-06-03

Reviews

Documents

A7670C-LASE Part Audit

Assets

kicad_mod

A7670C-LASE/A7670C-LASE.pretty/LGA-124_L24.0-W24.0-P1.0-A7670C-LASS.kicad_mod

A7670C-LASE/A7670C-LASE FootprintFootprint

step

A7670C-LASE/A7670C-LASE.3dshapes/LGA-124_L24.0-W24.0-P1.0-A7670C-LASS.step

A7670C-LASE/A7670C-LASE Model3D Model

A7670C-LASE-thumb.png

A7670C-LASE-thumbThumbnail

A7670C-LASE Symbol.svg

A7670C-LASE SymbolDefault

Project Name

A7670C-LASE

Description

SMD,24x24mm RF Transceiver Modules and Modems RoHS

A7670C-LASE is a compact LTE Cat 1 wireless communication module from SIMCom Wireless Solutions designed for IoT and M2M applications. It supports 4G LTE and 2G fallback connectivity, providing reliable cellular data communication for industrial, automotive, security, POS, and remote monitoring systems. The module uses a compact 24 mm × 24 mm LGA+LCC package, making it suitable for space-constrained designs.

Key Features LTE Cat 1 cellular module with up to 10 Mbps downlink and 5 Mbps uplink data rates. Supports LTE-FDD, LTE-TDD, GSM, GPRS, and EDGE networks. Compact 24 mm × 24 mm LGA+LCC package for easy migration from 2G, NB-IoT, and Cat-M designs. Operating voltage range of 3.4 V to 4.2 V. Multiple interfaces including: USB 2.0 UART I²C SPI GPIO ADC Integrated TCP/IP protocol stack for internet connectivity. Supports major operating systems including Windows, Linux, and Android through USB drivers. Firmware Over-The-Air update (FOTA/DFOTA) support. Supports LBS (Location Based Service) positioning. TLS/SSL security protocol support for secure communications. AT command compatible cellular modem architecture. Typical Applications Vehicle telematics and fleet management Industrial IoT gateways and routers POS terminals Security and surveillance systems Remote monitoring and telemetry Healthcare and telemedicine devices

Properties

Implemen… Details

Official SIMCom A7670X product/download page lists A7670X R2 hardware design manual for A7670C-LASE/LASC variants. Latest observed document: A7670X R2硬件设计手册_V1.14, updated 2026-03-18. Direct PDF URL was not exposed by the official page; use the product page/download center as datasheet source.

Part Type

RF Transceiver

Domain

Cellular RF module

Operating Voltage

3.8

Manufac…er Name

SIMCOM(芯讯通无线科技)

Connectivity

LTE Cat 1 / GSM, USB, UART, I2C, GPIO, ADC, GNSS, Bluetooth antenna interface

Datasheet URL

cn.simcom.com/product/A7670X.html

Designator Prefix

Manufac… Number

A7670C-LASE

LCSC Part Number

C2888406

Package …se Code

LGA-124_L24.0-W24.0-P1.0-A7670C-LASS

JLCPCB P…rt Class

Extended Part

Symbol Style

parametric-v1

Pricing & Availability

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