EG915U Pin Audit

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EG915U Part Audit and Pin Assignment

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Date: 2026-07-14 Project: EG915UEUAB-N05-SNNSA_IOT

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Completed: audited the Quectel EG915U part, preserved all existing pin numbers/names, and assigned Pin Orientation, Section, and Terminal Order across all 126 terminals; power pins are first and GND pins are last. I also created the detailed review here: EG915U Part Audit and Pin Assignment.
Open items:
  • Datasheet URL was already set, so I did not replace it with a newer official Quectel link.
  • Pin descriptions and Pin Type remain unchanged per your “only assign properties” constraint.
  • Footprint has 126 pads, but geometry should be dimension-checked against the official land pattern before release.
Suggested next steps:
  1. Normalize cosmetic terminal names like USB_BOOT_, USIM1_VDD_, and ANT_BT/WIFI__SCAN.
  2. Populate Pin Description and Pin Type from the datasheet.
  3. Verify the footprint dimensions against the latest official Quectel hardware design PDF.
Normalize, populate, verify
Normalize terminal names
Populate pin metadata
Verify footprint geometry
Run ERC DRC
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RESERVED_5
Pin Number
16
RESERVED_7
Pin Number
51
AP_READY
Pin Number
19
ADC1
Pin Number
2
USIM1_RST
Pin Number
44
GND_24
Pin Number
90
USB_VBUS
Pin Number
8
RESERVED_31
Pin Number
115
SPI_DIN
Pin Number
88
GND_14
Pin Number
70
VBAT_RF_2
Pin Number
53
VBAT_BB_2
Pin Number
33
GND_3
Pin Number
48
RESERVED_29
Pin Number
113
I2C_SDA
Pin Number
41
GND_23
Pin Number
89
RESERVED_12
Pin Number
92
DBG_RXD
Pin Number
22
PSM_IND
Pin Number
1
RESERVED_6
Pin Number
49
GND_12
Pin Number
68
RESERVED_32
Pin Number
116
RESERVED_3
Pin Number
13
VBAT_RF_1
Pin Number
52
MAIN_CTS
Pin Number
36
GRFC1
Pin Number
76
RESERVED_20
Pin Number
104
USIM2_CLK
Pin Number
84
PCM_CLK
Pin Number
4
RESERVED_36
Pin Number
124
RESERVED_22
Pin Number
106
GRFC2
Pin Number
77
RESERVED_24
Pin Number
108
RESERVED_4
Pin Number
14
USIM1_CLK
Pin Number
46
RESERVED_15
Pin Number
95
VBAT_BB_1
Pin Number
32
USB_DP
Pin Number
9
SPK_N
Pin Number
122
W_DISABLE#
Pin Number
18
RESERVED_13
Pin Number
93
GND_9
Pin Number
61
GND_16
Pin Number
72
RESERVED_9
Pin Number
65
RESERVED_27
Pin Number
111
RESERVED_2
Pin Number
12
AUX_TXD_
Pin Number
27
PCM_DOUT
Pin Number
7
RESERVED_17
Pin Number
98
GND_25
Pin Number
91
ADC0
Pin Number
24
MAIN_RTS
Pin Number
37
RESERVED_26
Pin Number
110
GND_21
Pin Number
81
I2S_CLK
Pin Number
63
GND_4
Pin Number
50
ANT_BT/WIFI__SCAN
Pin Number
56
RESERVED_30
Pin Number
114
RESERVED_28
Pin Number
112
GND_5
Pin Number
54
SPK_P
Pin Number
121
USIM2_VDD
Pin Number
87
GND_8
Pin Number
59
AUX_RXD
Pin Number
28
GND_27
Pin Number
101
RESERVED_14
Pin Number
94
GND_11
Pin Number
67
RESERVED_16
Pin Number
97
SPI_CS
Pin Number
25
RESERVED_25
Pin Number
109
STATUS
Pin Number
20
USB_BOOT_
Pin Number
75
GND_7
Pin Number
58
RESERVED_1
Pin Number
11
GND_6
Pin Number
55
I2C_SCL
Pin Number
40
PCM_DIN
Pin Number
6
GND_10
Pin Number
62
SPI_DOUT
Pin Number
64
MAIN_DCD
Pin Number
38
RESERVED_21
Pin Number
105
RESERVED_18
Pin Number
99
MICBIAS
Pin Number
120
GND_1
Pin Number
3
MIC_P
Pin Number
126
USB_DM
Pin Number
10
USIM2_RST
Pin Number
85
MAIN_RXD
Pin Number
34
GND_13
Pin Number
69
RESERVED_19
Pin Number
103
NET_STATUS
Pin Number
21
GND_2
Pin Number
31
GND_19
Pin Number
79
SPI_CLK
Pin Number
26
RESERVED_8
Pin Number
57
RESERVED_34
Pin Number
118
DBG_TXD
Pin Number
23
GND_15
Pin Number
71
RESERVED_37
Pin Number
125
PCM_SYNC
Pin Number
5
PSM_EINT
Pin Number
96
GND_17
Pin Number
73
GND_18
Pin Number
74
RESERVED_10
Pin Number
66
USIM1_VDD_
Pin Number
43
MAIN_TXD
Pin Number
35
RESERVED_11
Pin Number
78
ANT_MAIN
Pin Number
60
RESET_N
Pin Number
17
MAIN_DTR
Pin Number
30
USIM2_DATA
Pin Number
86
PWRKEY
Pin Number
15
USIM1_DET
Pin Number
42
USIM1_DATA
Pin Number
45
MAIN_RI
Pin Number
39
GND_26
Pin Number
100
USIM2_DET
Pin Number
83
GND_28
Pin Number
102
RESERVED_23
Pin Number
107
USIM1_GND
Pin Number
47
VDD_EXT
Pin Number
29
GND_22
Pin Number
82
RESERVED_35
Pin Number
123
RESERVED_33
Pin Number
117
MIC_N
Pin Number
119
GND_20
Pin Number
80

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EG915U Part Audit and Pin Assignment
Date: 2026-07-14 Project: EG915UEUAB-N05-SNNSA_IOT
Scope
Reviewed the Quectel EG915U-EU / EG915UEUAB-N05-SNNSA*IOT part metadata, schematic terminal list, footprint summary, and available datasheet content. Applied only these schematic terminal properties as requested:
  • Pin Orientation
  • Section
  • Terminal Order
No pins were replaced, no pin numbers were changed, and no terminals were remapped.
Part Metadata Reviewed

Table

FieldProject value / finding
ManufacturerQuectel
MPNEG915UEUAB-N05-SNNSA*IOT
DescriptionLTE Cat 1 + 2G multiprotocol module, cloud enabled, 8M, without GNSS, with BLE, with Wi-Fi scan
PackageLGA module
Pin / pad count126
Datasheet URL propertyAlready set to a stored PDF URL, so it was not changed
Official web sources foundQuectel EG915U Series Hardware Design and Module Specification pages/PDFs are available from Quectel/QuecDevZone
Datasheet Key Specs Extracted
Source used for detailed checking: EG915U-EU Hardware Design, LTE Standard Module Series, Version 1.0.0, 2021-06-24, preliminary.

Table

SpecDatasheet value
Module family / variantEG915U-EU
Package / pinsLGA, 126 pins
Dimensions23.6 mm x 19.9 mm x 2.4 mm
WirelessLTE-FDD, GSM, Bluetooth, Wi-Fi Scan
LTE-FDD bandsB1/B3/B5/B7/B8/B20/B28
GSM bands850/900/1800/1900 MHz
Bluetooth / Wi-Fi scan2.4 GHz; Bluetooth and Wi-Fi Scan cannot be used simultaneously
Main antennaANT_MAIN, 50 ohm
BT/Wi-Fi scan antennaANT_BT/WIFI_SCAN, passive antenna only
VBAT operating range3.3 V to 4.3 V, typical 3.8 V
Recommended supply capabilityAt least 3.0 A source capability
USB_VBUS detection3.5 V min, 5.0 V typ, 5.25 V max
Absolute max VBAT_RF/VBAT_BB-0.3 V to 6.0 V
Absolute max USB_VBUS-0.3 V to 5.5 V
Digital pin abs max-0.3 V to 2.3 V
ADC0 / ADC1 abs max0 V to VBAT
Operating temperature-35 C to +75 C
Extended operating temperature-40 C to +85 C
Storage temperature-40 C to +95 C
Schematic and Pin Cross-Check Summary

Table

CheckResult
Total schematic terminals126
Datasheet pin count126
Pin-number coverageAll 126 pin numbers are represented
Datasheet functional pinsMatched by pin number and recognizable terminal name
GND pins28 regular GND pins plus USIM1_GND present; assigned last in terminal order
RESERVED pinsDatasheet reserved pin set present as RESERVED_1 through RESERVED_37; assigned NC section
Pin remappingNone performed
Pin number editsNone performed
Pin replacementsNone performed
Mismatches / Items Flagged
  1. Naming normalization differences only: these schematic terminal names differ cosmetically from the datasheet names but keep the correct pin numbers:
    • AUX_TXD_ vs datasheet AUX_TXD at pin 27
    • USB_BOOT_ vs datasheet USB_BOOT at pin 75
    • USIM1_VDD_ vs datasheet USIM1_VDD at pin 43
    • ANT_BT/WIFI__SCAN vs datasheet ANT_BT/WIFI_SCAN at pin 56
  2. Pin descriptions are not populated as terminal properties in the current schematic terminals. The datasheet descriptions are available, but per the latest instruction only orientation, section, and terminal order were assigned.
  3. Pin Type remains Unspecified for all terminals. The datasheet I/O classes are available, but they were not changed because the latest instruction limited edits to orientation, section, and terminal order.
  4. Footprint count matches but geometry needs dimensional verification: layout summary shows 126 pads and the module 3D model. The layout readout reports very small pad coordinate/size values while the datasheet module is 23.6 mm x 19.9 mm; this may be a unit/readout scaling issue, but the land pattern should be verified against the official recommended footprint drawing before release.
  5. Datasheet usage cautions:
    • Pin 1 PSM_IND and pin 63 I2S_CLK are marked under development / not recommended for use.
    • USIM2 interface is under development / not recommended for the time being.
    • RESERVED/NC pins should remain unconnected.
    • All GND pins should be connected to ground.
Applied Section / Orientation / Terminal Order Table

Table

OrderPin No.TerminalSectionOrientationDatasheet function
132VBAT_BB_1PowerTopBaseband power supply
233VBAT_BB_2PowerTopBaseband power supply
352VBAT_RF_1PowerTopRF power supply
453VBAT_RF_2PowerTopRF power supply
58USB_VBUSPowerTopUSB connection detect
629VDD_EXTPowerTop1.8 V output for external circuit
743USIM1_VDD_PowerTopUSIM1 card power supply
887USIM2_VDDPowerTopUSIM2 card power supply
915PWRKEYControlLeftTurn on/off module
1017RESET_NControlLeftReset module
1175USB_BOOT_ControlLeftEmergency download mode
1218W_DISABLE#ControlLeftAirplane mode control
1319AP_READYControlLeftApplication processor ready
1496PSM_EINTControlRightWake from PSM
1520STATUSOutputRightModule operation status
1621NET_STATUSOutputRightNetwork activity status
171PSM_INDOutputRightPower saving mode indication; under development
189USB_DPInterfaceLeftUSB differential data +
1910USB_DMInterfaceLeftUSB differential data -
2042USIM1_DETInterfaceLeftUSIM1 hot-plug detect
2144USIM1_RSTInterfaceLeftUSIM1 reset
2245USIM1_DATAInterfaceLeftUSIM1 data
2346USIM1_CLKInterfaceLeftUSIM1 clock
2483USIM2_DETInterfaceRightUSIM2 detect; under development
2585USIM2_RSTInterfaceRightUSIM2 reset; under development
2686USIM2_DATAInterfaceRightUSIM2 data; under development
2784USIM2_CLKInterfaceRightUSIM2 clock; under development
2830MAIN_DTRInterfaceLeftMain UART DTR
2934MAIN_RXDInterfaceLeftMain UART receive
3035MAIN_TXDInterfaceRightMain UART transmit
3136MAIN_CTSInterfaceRightMain UART CTS
3237MAIN_RTSInterfaceLeftMain UART RTS
3338MAIN_DCDInterfaceRightMain UART DCD
3439MAIN_RIInterfaceRightMain UART ring indication
3528AUX_RXDInterfaceLeftAuxiliary UART receive
3627AUX_TXD_InterfaceRightAuxiliary UART transmit
3722DBG_RXDInterfaceLeftDebug UART RXD
3823DBG_TXDInterfaceRightDebug UART TXD
3940I2C_SCLInterfaceLeftI2C serial clock
4041I2C_SDAInterfaceLeftI2C serial data
415PCM_SYNCInterfaceLeftPCM frame sync
424PCM_CLKInterfaceLeftPCM clock
436PCM_DINInterfaceLeftPCM data input
447PCM_DOUTInterfaceRightPCM data output
4563I2S_CLKInterfaceRightI2S clock; under development
4625SPI_CSInterfaceRightSPI chip select
4726SPI_CLKInterfaceRightSPI clock
4864SPI_DOUTInterfaceRightSPI master output
4988SPI_DINInterfaceLeftSPI master input
5024ADC0AnalogLeftGeneral-purpose ADC
512ADC1AnalogLeftGeneral-purpose ADC
52126MIC_PAnalogLeftMicrophone input +
53119MIC_NAnalogLeftMicrophone input -
54120MICBIASAnalogRightMicrophone bias output
55121SPK_PAnalogRightSpeaker output +
56122SPK_NAnalogRightSpeaker output -
5760ANT_MAINRFRightMain antenna interface
5856ANT_BT/WIFI__SCANRFRightWi-Fi/Bluetooth antenna interface
5976GRFC1RFLeftGeneric RF controller
6077GRFC2RFLeftGeneric RF controller
6111RESERVED_1NCLeftReserved; keep unconnected
6212RESERVED_2NCLeftReserved; keep unconnected
6313RESERVED_3NCLeftReserved; keep unconnected
6414RESERVED_4NCLeftReserved; keep unconnected
6516RESERVED_5NCLeftReserved; keep unconnected
6649RESERVED_6NCLeftReserved; keep unconnected
6751RESERVED_7NCLeftReserved; keep unconnected
6857RESERVED_8NCLeftReserved; keep unconnected
6965RESERVED_9NCLeftReserved; keep unconnected
7066RESERVED_10NCLeftReserved; keep unconnected
7178RESERVED_11NCLeftReserved; keep unconnected
7292RESERVED_12NCLeftReserved; keep unconnected
7393RESERVED_13NCLeftReserved; keep unconnected
7494RESERVED_14NCLeftReserved; keep unconnected
7595RESERVED_15NCLeftReserved; keep unconnected
7697RESERVED_16NCLeftReserved; keep unconnected
7798RESERVED_17NCLeftReserved; keep unconnected
7899RESERVED_18NCLeftReserved; keep unconnected
79103RESERVED_19NCRightReserved; keep unconnected
80104RESERVED_20NCRightReserved; keep unconnected
81105RESERVED_21NCRightReserved; keep unconnected
82106RESERVED_22NCRightReserved; keep unconnected
83107RESERVED_23NCRightReserved; keep unconnected
84108RESERVED_24NCRightReserved; keep unconnected
85109RESERVED_25NCRightReserved; keep unconnected
86110RESERVED_26NCRightReserved; keep unconnected
87111RESERVED_27NCRightReserved; keep unconnected
88112RESERVED_28NCRightReserved; keep unconnected
89113RESERVED_29NCRightReserved; keep unconnected
90114RESERVED_30NCRightReserved; keep unconnected
91115RESERVED_31NCRightReserved; keep unconnected
92116RESERVED_32NCRightReserved; keep unconnected
93117RESERVED_33NCRightReserved; keep unconnected
94118RESERVED_34NCRightReserved; keep unconnected
95123RESERVED_35NCRightReserved; keep unconnected
96124RESERVED_36NCRightReserved; keep unconnected
97125RESERVED_37NCRightReserved; keep unconnected
983GND_1Ground / GNDBottomGround
9931GND_2Ground / GNDBottomGround
10047USIM1_GNDGround / GNDBottomUSIM1 specified ground
10148GND_3Ground / GNDBottomGround
10250GND_4Ground / GNDBottomGround
10354GND_5Ground / GNDBottomGround
10455GND_6Ground / GNDBottomGround
10558GND_7Ground / GNDBottomGround
10659GND_8Ground / GNDBottomGround
10761GND_9Ground / GNDBottomGround
10862GND_10Ground / GNDBottomGround
10967GND_11Ground / GNDBottomGround
11068GND_12Ground / GNDBottomGround
11169GND_13Ground / GNDBottomGround
11270GND_14Ground / GNDBottomGround
11371GND_15Ground / GNDBottomGround
11472GND_16Ground / GNDBottomGround
11573GND_17Ground / GNDBottomGround
11674GND_18Ground / GNDBottomGround
11779GND_19Ground / GNDBottomGround
11880GND_20Ground / GNDBottomGround
11981GND_21Ground / GNDBottomGround
12082GND_22Ground / GNDBottomGround
12189GND_23Ground / GNDBottomGround
12290GND_24Ground / GNDBottomGround
12391GND_25Ground / GNDBottomGround
124100GND_26Ground / GNDBottomGround
125101GND_27Ground / GNDBottomGround
126102GND_28Ground / GNDBottomGround
Verification After Edit
Post-edit schematic inspection confirmed the assigned properties are present. Terminal orders span 1 through 126, power terminals are first, reserved/NC terminals are grouped before ground, and all ground terminals are last. Layout summary still reports 126 pads.

  • Scope

  • Part Metadata Reviewed

  • Datasheet Key Specs Extracted

  • Schematic and Pin Cross-Check Summary

  • Mismatches / Items Flagged

  • Applied Section / Orientation / Terminal Order Table

  • Verification After Edit

Documents

Assets

EG915UEUAB-N05-SNNSA_IOT

EG915UEUABN05SNNSAIOT.kicad_modFootprint
EG915UEUAB-N05-SNNSA_IOT

EG915UEUAB-N05-SNNSA_IOT

EG915UEUAB-N05-SNNSA_IOT.stp3D Model
image.png

image.png

imageThumbnail

EG915UEUAB-N05-SNNSA_IOT

EG915UEUAB-N05-SNNSA_IOT Symbol.svgDefault

EG915UEUAB-N05-SNNSA

EG915UEUAB-N05-SNNSA thumbnail
EG915UEUAB-N05-SNNSA*IOT Multiprotocol Modules LTE Cat 1 + 2G, cloud enabled, 8M, w/o GNSS, w/ BLE, w/ Wi-Fi scan

Properties

EG915UEUAB-N05-SNNSA*IOT

Quectel

Integrated Circuit

auroraevernet.ru/upload/iblock/9e5/x9n30h1ngl8vruwqj9qtysyz3r9yg0cr.pdf

IC

parametric-v1

Pricing & Availability

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Stock

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$16.92

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