Part Datasheet Audit
Worked for 1 min 11 sec
Created a project doc
Part Datasheet Audit
Part Datasheet Audit
Scope
Audit of ESP32-H2-MINI-1-H4S part metadata, schematic symbol, PCB footprint, and terminal descriptions against the official Espressif datasheet.
- Official datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-h2-mini-1_mini-1u_datasheet_en.pdf
- Datasheet version: v1.6, July 2, 2026
- Manufacturer: Espressif Systems
- Pin numbers 1–53 and their displayed names align with the datasheet pin table.
- GPIO, EN, 3V3, VBAT, UART, NC, and GND naming is consistent for the actual datasheet pins.
- Eight nonexistent electrical pins were added: pins 54–61, all named GND. The datasheet ends at pin 53.
Audit complete. The official Espressif datasheet was already correctly linked, so no property update was necessary. The critical mismatch is 61 library terminals versus 53 datasheet pins—center GND land segments 54–61 should share pad number 49; pin types/descriptions are also missing, and the Logic/AND classification is incorrect.
Full results: Part Datasheet Audit. I also filed an internal part-quality report for correction.
Organize the terminals into proper pin groups, sections, orientations, and terminal order.
Thought for 5 sec
I’ll reorganize the symbol by function—power, control, GPIO/peripherals, UART/USB, NC, and ground—then verify every terminal’s section, group, orientation, and order.
Worked for 1 min 55 sec
Organized all 61 terminals into functional Power, Control, GPIO, Clock, Communication, No Connect, and Ground sections, with appropriate pin groups, orientations, and deterministic ordering.
- Power pins: top
- Ground pins: bottom
- GPIO/control: left
- USB/UART and NC: right
The previously identified extra ground terminals 54–61 remain unchanged pending footprint/pin-count correction.
Correct center ground pads
Add pin types descriptions
Fix part classification
Review antenna constraints
Refine this doc
Ask about this doc
Part Datasheet Audit
Scope
Audit of ESP32-H2-MINI-1-H4S part metadata, schematic symbol, PCB footprint, and terminal descriptions against the official Espressif datasheet.
- Official datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-h2-mini-1_mini-1u_datasheet_en.pdf
- Datasheet version: v1.6, July 2, 2026
- Manufacturer: Espressif Systems
Key specifications
Table
| Item | Datasheet value |
|---|---|
| MPN | ESP32-H2-MINI-1-H4S |
| Function | Bluetooth Low Energy 5.3 and IEEE 802.15.4 module with PCB antenna |
| CPU | 32-bit single-core RISC-V, up to 96 MHz |
| Memory | 128 KB ROM, 320 KB SRAM, 4 KB LP memory |
| Flash | 4 MB in-package Quad SPI flash |
| Wireless | BLE 5.3, Bluetooth Mesh, IEEE 802.15.4-2015, Zigbee 3.0, Thread 1.4, Matter |
| RF band | BLE 2402–2480 MHz; 802.15.4 2405–2480 MHz |
| TX power range | -24 to +20 dBm |
| Supply | 3.0–3.6 V, 3.3 V typical |
| Recommended supply capability | At least 0.35 A |
| Ambient temperature | -40 to +105 °C |
| GPIO | Up to 19 |
| Module dimensions | 13.2 ±0.2 × 16.6 ±0.2 × 2.4 ±0.15 mm |
| Mounting | Surface-mount module |
| Datasheet electrical pin count | 53 |
Metadata review
Table
| Field | Existing value | Result |
|---|---|---|
| Manufacturer Part Number | ESP32-H2-MINI-1-H4S | Match |
| Manufacturer | Espressif | Match |
| Mount | Surface Mount | Match |
| Package / Case | Module | Match, but not dimensionally descriptive |
| Datasheet URL | Official Espressif PDF | Match; no update required |
| Description | “802.15.4, Bluetooth Bluetooth v5.3, Zigbee Transceiver Module 2.4GHz PCB Trace Surface Mount 61-SMD, 3V ~ 3.6V, -40C ~ 105C” | Partially correct, but duplicates “Bluetooth,” calls the device a 61-SMD part, and omits Thread/Matter, 4 MB flash, CPU, and exact module size |
| Part Type / subtype | Integrated Circuits / Logic | Poor classification; this is an RF transceiver/MCU module |
| Logic function | AND | Incorrect and unrelated |
| Terminal count | 61 | Incorrect as an electrical pin count; datasheet specifies 53 pins |
Schematic symbol review
Correct items
- Pin numbers 1–53 and their displayed names align with the datasheet pin table.
- GPIO, EN, 3V3, VBAT, UART, NC, and GND naming is consistent for the actual datasheet pins.
Mismatches
- Eight nonexistent electrical pins were added: pins 54–61, all named GND. The datasheet ends at pin 53.
- All terminal Pin Type properties are
Unspecified. Datasheet types should be represented as power, input, or bidirectional/high-impedance where supported. - Pin Description properties are absent. This loses important alternate functions such as ADC, FSPI, JTAG, USB D-/D+, 32 kHz crystal, UART, and the warning not to leave EN floating.
- The symbol therefore presents the segmented center ground land as separate schematic terminals rather than one electrical ground pad.
Footprint review
Geometry that matches
- Body outline is 13.2 × 16.6 mm.
- Perimeter land geometry uses 48 pads at 0.4 × 0.8 mm with 0.8 mm pitch.
- Four corner ground lands are 0.7 × 0.7 mm.
- Center ground/thermal land is implemented as a 3 × 3 array of 1.45 × 1.45 mm paste/copper regions, consistent with the recommended land-pattern geometry.
- Footprint orientation and PCB-antenna module outline are consistent with ESP32-H2-MINI-1 rather than MINI-1U.
Critical footprint mismatch
The nine center ground-land segments are numbered 49, 54, 55, 56, 57, 58, 59, 60, 61. Electrically, the datasheet defines only pin 49 for this center ground pad; the segmented lands should share the same electrical pad number/net instead of creating eight additional terminals. This is the source of the false 61-pin count and the extra schematic GND pins.
Other footprint observations
- The courtyard is approximately 1 mm larger than the body on each edge; this is conservative but not identified as an Espressif courtyard requirement.
- The footprint contains the PCB antenna region, but users must still enforce the Espressif antenna keepout and base-board placement guidance in the final PCB layout.
Pin-map result
The valid datasheet mapping is:
- GND: 1, 2, 11, 14, 36–53
- 3V3: 3
- NC: 4, 7, 17, 28, 29, 32–35
- IO2: 5
- IO3: 6
- EN: 8
- IO0: 9
- IO1: 10
- IO13: 12
- IO14: 13
- VBAT: 15
- IO12: 16
- IO4: 18
- IO5: 19
- IO10: 20
- IO11: 21
- IO8: 22
- IO9: 23
- IO22: 24
- IO25: 25
- IO26 / USB_D-: 26
- IO27 / USB_D+: 27
- RXD0 / GPIO23: 30
- TXD0 / GPIO24: 31
Severity and recommended corrections
Critical
- Renumber center land segments 54–61 to 49 so all nine regions represent the single center GND pad.
- Remove schematic terminals 54–61 and set the part terminal count to 53.
High
- Add datasheet-backed Pin Type values for all 53 terminals.
- Add full Pin Description values, including alternate functions and EN/VBAT notes.
Medium
- Reclassify the part from Logic/AND to an RF wireless MCU/transceiver module.
- Rewrite the description and remove “61-SMD” and duplicated “Bluetooth.”
- Add package dimensions or a more specific package description.
Conclusion
The MPN, manufacturer, official datasheet, operating range, module family, and most physical land geometry are correct. The part is not safe to treat as fully validated, because its footprint and symbol model the segmented center ground pad as eight extra electrical pins, producing a false 61-pin device. Pin electrical types and descriptions are also missing.
Scope
Key specifications
Metadata review
Schematic symbol review
Correct items
Mismatches
Footprint review
Geometry that matches
Critical footprint mismatch
Other footprint observations
Pin-map result
Severity and recommended corrections
Critical
High
Medium
Conclusion
