EC200U Part Audit


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Part Audit

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Part Audit Scope
Audit of the Quectel EC200U part metadata, 144-terminal schematic symbol, and 144-pad PCB footprint against official Quectel documentation.
Authoritative sources Metadata review Key specifications
Audit complete. The 144-pin numbering and general footprint topology are correct, but all pin descriptions/types are missing and the 80 perimeter pads are 0.8 × 1.0 mm instead of Quectel’s recommended 0.8 × 2.5 mm; several pin names also differ. The Datasheet property was not changed because it was already populated, and I filed a part-quality report.
Full findings: Part Audit.
Check this schematic component against the datasheet for [MPN] and assign the correct pin orientation, section, and terminal order without changing, replacing, renumbering, or remapping any pins. Remove the Pin Group property from all pins if it exists. Place Power pins first and Ground pins last. Within each section, distribute the pins as evenly as possible between the left and right sides; for example, split 10 pins as 5/5 and 11 pins as 5/6 or 6/5. If a section contains only one pin, leave it on the most appropriate side. Keep the symbol compact, balanced, and visually symmetrical. If a pin function is unclear, assign Unclear / Check datasheet, then apply all changes directly to the schematic component.
I’ll use the current part’s MPN (EC200U), verify every terminal against the official Quectel datasheet, then assign sections, orientation, and terminal order while preserving all pin numbers and mappings.
Reorganized all 144 EC200U terminals into balanced functional sections, with power first and 43 ground pins last. Removed every Pin Group property and assigned each pin a section, left/right orientation, and unique terminal order.
All original pin names, numbers, and footprint mappings were preserved. Seven reserved or ambiguous pins were placed in Unclear / Check datasheet.
Complete part corrections
Complete pin metadata
Resolve unclear pins
Correct perimeter pads
Set official datasheet

LCD_SEL
Pin Number
121
GND_41
Pin Number
110
KEYIN1
Pin Number
78
GND_42
Pin Number
111
RESERVED_1
Pin Number
18
WLAN_EN
Pin Number
136
SPI_CLK
Pin Number
40
SDIO2_DATA3
Pin Number
129
SDIO2_CMD
Pin Number
134
GND_1
Pin Number
8
GND_20
Pin Number
89
GND_32
Pin Number
101
SDIO1_DATA0
Pin Number
31
SPI_CS
Pin Number
37
W_DISABLE#
Pin Number
4
GND_36
Pin Number
105
VDD_EXT
Pin Number
7
I2C2_SCL
Pin Number
141
GND_3
Pin Number
19
GND_29
Pin Number
98
GND_26
Pin Number
95
LCD_CS
Pin Number
122
USIM_DATA
Pin Number
15
ADC1
Pin Number
44
PCM_SYNC
Pin Number
26
ANT_MAIN
Pin Number
49
AUX_RXD
Pin Number
137
GND_11
Pin Number
53
I2C_SCL
Pin Number
41
AP_READY
Pin Number
2
VBAT_BB_1
Pin Number
59
GND_24
Pin Number
93
VBAT_RF_2
Pin Number
58
SDIO1_DATA1
Pin Number
30
LOUDSPK__P
Pin Number
73
KEYOUT2
Pin Number
113
ANT_GNSS
Pin Number
47
GND_9
Pin Number
51
LCD_SI/O
Pin Number
125
LCD_FMARK
Pin Number
119
GND_8
Pin Number
50
GND_6
Pin Number
46
SLEEP_IND
Pin Number
3
SPI_MISO
Pin Number
39
GND_43
Pin Number
112
GND_22
Pin Number
91
GND_21
Pin Number
90
MAIN_CTS
Pin Number
64
WLAN_SLP__CLK
Pin Number
118
WAKEUP_IN
Pin Number
1
LCD_SDC
Pin Number
124
MAIN_DCD
Pin Number
63
GND_28
Pin Number
97
GRFC1
Pin Number
143
SDIO2_CLK
Pin Number
133
GND_2
Pin Number
9
KEYOUT1
Pin Number
84
GND_23
Pin Number
92
AUX_TXD
Pin Number
138
GND_40
Pin Number
109
RESET_N
Pin Number
20
PWRKEY
Pin Number
21
VBAT_BB_2
Pin Number
60
GND_25
Pin Number
94
USIM_GND
Pin Number
10
GND_10
Pin Number
52
USB_BOOT
Pin Number
115
KEYOUT3
Pin Number
114
GND_35
Pin Number
104
GND_12
Pin Number
54
SDIO1_CLK
Pin Number
32
MIC_P
Pin Number
75
SDIO1_VDD
Pin Number
34
RESERVED_3
Pin Number
81
GND_19
Pin Number
88
USB_VBUS
Pin Number
71
VBAT_RF_1
Pin Number
57
SPI_MOSI
Pin Number
38
DBG_TXD
Pin Number
12
SDIO1_CMD
Pin Number
33
SDIO2_DATA2
Pin Number
130
GND_5
Pin Number
36
KEYIN3
Pin Number
80
MAIN_RTS
Pin Number
65
LOUDSPK__N
Pin Number
74
GND_18
Pin Number
87
STATUS
Pin Number
61
PCM_DIN
Pin Number
24
BT_EN
Pin Number
139
WLAN_PWR__EN
Pin Number
127
GND_17
Pin Number
86
RESERVED_6
Pin Number
117
KEYOUT0
Pin Number
83
MAIN_DTR
Pin Number
66
ISINK
Pin Number
140
GND_33
Pin Number
102
GND_34
Pin Number
103
LCD_CLK
Pin Number
123
LCD_RSTB
Pin Number
120
RESERVED_2
Pin Number
55
GND_14
Pin Number
72
MAIN_RXD
Pin Number
68
NET_STATUS
Pin Number
6
SDIO1_DATA3
Pin Number
28
NET_MODE
Pin Number
5
GND_30
Pin Number
99
USIM_VDD
Pin Number
14
GND_39
Pin Number
108
USIM_CLK
Pin Number
16
GND_15
Pin Number
76
RESERVED_5
Pin Number
116
GND_38
Pin Number
107
ANT_BT/WIFI__SCAN
Pin Number
35
MIC_N
Pin Number
77
GND_13
Pin Number
56
GND_7
Pin Number
48
USIM2_VDD
Pin Number
128
GRFC2
Pin Number
144
I2C_SDA
Pin Number
42
GND_31
Pin Number
100
USB_DP
Pin Number
69
GND_27
Pin Number
96
ADC0
Pin Number
45
GPIO1
Pin Number
126
SD_DET
Pin Number
23
USIM_DET
Pin Number
13
USIM_RST
Pin Number
17
USB_DM
Pin Number
70
MAIN_RI
Pin Number
62
MAIN_TXD
Pin Number
67
PCM_DOUT
Pin Number
25
GND_4
Pin Number
22
SDIO2_DATA1
Pin Number
131
SDIO2_DATA0
Pin Number
132
I2C2_SDA
Pin Number
142
SDIO1_DATA2
Pin Number
29
PCM_CLK
Pin Number
27
GND_37
Pin Number
106
ADC2
Pin Number
43
RESERVED_4
Pin Number
82
WLAN_WAKE
Pin Number
135
KEYIN2
Pin Number
79
DBG_RXD
Pin Number
11
GND_16
Pin Number
85

EC200U