ESP8685H4 Part Review


Fix pin 29 to GND/EP and add datasheet-backed pin descriptions and pin types.
I’ll update the terminal metadata from the Espressif pin table: rename pin 29 to GND/EP, set pin types, and add concise datasheet-backed pin descriptions, then verify the changes.
Pin 29 is now labeled GND/EP; I’m applying the datasheet pin descriptions and electrical pin types next.
Completed and verified the pin metadata update.
Open items:
  • None for this request.
Suggested next steps:
  1. Optionally update the Datasheet URL to the official Espressif PDF.
  2. Optionally change package metadata to QFN28 (4x4 mm).
  3. Optionally refine part type/subtype from generic logic IC to wireless MCU/RF SoC.
Update metadata and review
Update datasheet URL
Fix package metadata
Refine part subtype
Run final review

XTAL_N
Pin Number
25
XTAL_P
Pin Number
26
GPIO18
Pin Number
21
GPIO3
Pin Number
8
MTDI
Pin Number
10
VDD_SPI
Pin Number
18
LNA_IN
Pin Number
1
GPIO9
Pin Number
15
VDDA_2
Pin Number
28
MTCK
Pin Number
12
MTDO
Pin Number
13
GPIO19
Pin Number
22
MTMS
Pin Number
9
XTAL_32K_P
Pin Number
4
GPIO10
Pin Number
16
VDDA_1
Pin Number
27
CHIP_EN
Pin Number
7
U0RXD
Pin Number
23
NC_2
Pin Number
20
XTAL_32K_N
Pin Number
5
GPIO8
Pin Number
14
GND/EP
Pin Number
29
VDD3P3_RTC
Pin Number
11
VDD3P3_CPU
Pin Number
17
VDD3P3_2
Pin Number
3
VDD3P3_1
Pin Number
2
GPIO2
Pin Number
6
U0TXD
Pin Number
24
NC_1
Pin Number
19
7 · CHIP_EN8 · GPIO315 · GPIO921 · GPIO181 · LNA_IN10 · MTDI9 · MTMS20 · NC_224 · U0TXD4 · XTAL_32K_P26 · XTAL_PGPIO2 · 6GPIO8 · 14GPIO10 · 16GPIO19 · 22MTCK · 12MTDO · 13NC_1 · 19U0RXD · 23XTAL_32K_N · 5XTAL_N · 252 · VDD3P3_13 · VDD3P3_217 · VDD3P3_CPU11 · VDD3P3_RTC27 · VDDA_128 · VDDA_218 · VDD_SPIGND/EP · 29

ESP8685H4

ESP8685H4 thumbnail