Storage Options for ESP32
7:09
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Looking for "Power sequencing requirements and recommendations for VCC, VCCQ rails." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
Looking for "Supported I/O voltage levels and whether VCCQ supports 1.8V and 3.3V." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
Looking for "Recommended operating conditions for VCC and VCCQ (supply voltage ranges)." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
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Looking for "Decoupling capacitor recommendations and placement for VCC and VCCQ." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
Looking for "Bus width support (x1/x4/x8) and maximum interface frequency or speed mode (eMMC)." in AllianceMemory_8GB_ASFC8G31M-51BIN_eMMCdatasheet_Jan2022_v1.1.pdf
Looking for "Recommended operating conditions for VCC and VCCQ (supply voltage ranges)." in AllianceMemory_8GB_ASFC8G31M-51BIN_eMMCdatasheet_Jan2022_v1.1.pdf
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Looking for "Maximum or peak current consumption on VCC and VCCQ during read/write (ICC values)." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
Looking for "Decoupling and bypass capacitor recommendations (values per VCC/VCCQ ball)." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
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Looking for "CMD/DAT line pull-up or pull-down requirements for eMMC host; any external pull-ups needed?" in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
Looking for "RESET pin (RST_n) requirements: polarity, default pull-up, recommended external resistor, and connection guidance." in 2007301503_Samsung-KLM8G1GETF-B041_C499918.pdf
Considering eMMC and ESP32-S3 compatibility.
Table
| Part | MPN | Package | Key notes |
|---|---|---|---|
| ASFC8G31M-51BIN | ASFC8G31M-51BIN | BGA153 11.5x13 | eMMC 5.x, x1/x4/x8, 200 MHz. See Datasheet. Power sequencing guidance and bulk decoupling called out. |
| KLM8G1GETF-B041 | KLM8G1GETF-B041 | BGA153 11.5x13 | Samsung eMMC 5.1, supports x1/x4/x8, 0–200 MHz. VCC 2.7–3.6 V, VCCQ 1.70–1.95 V per datasheet. |
- Samsung KLM8G1GETF-B041
- VCC (NAND core): 2.7–3.6 V.
- VCCQ (I/O): 1.70–1.95 V.
- Bus width: 1/4/8-bit; clock up to 200 MHz.
- Active RMS current (8 GB): up to 180 mA on VCCQ and 50 mA on VCC (measured at x8, HS400; table notes).
- Alliance ASFC8G31M-51BIN
- Notes require VCCQ to ramp before or at the same time as VCC; prefer VCCQ first. Place a 10 µF (or higher) bulk capacitor on each rail close to the device, and decouple each VCC ball locally.
- AP131-18WG-7 — 300 mA, SOT‑23‑5. Datasheet
- LP3982IMM-1.8/NOPB — 300 mA, VSSOP‑8. Datasheet
- Replace microSD: Remove the microSD socket U4. Place the BGA153 eMMC near the ESP32 module U1.
- Reuse the SDIO nets (4‑bit bus):
- CLK: U1 IO10 (Net 29) → eMMC CLK.
- CMD: U1 IO9 (Net 25) → eMMC CMD.
- DAT0: U1 IO11 (Net 9) → eMMC DAT0.
- DAT1: U1 IO12 (Net 24) → eMMC DAT1.
- DAT2: U1 IO3 (Net 28) → eMMC DAT2.
- DAT3: U1 IO46 (Net 27) → eMMC DAT3.
- Keep trace lengths short, reference to solid GND, and length‑match data lines to CLK within a few millimeters.
- Power:
- Tie eMMC VCC to your 3.3 V rail.
- Generate 1.8 V (VCCQ) with the LDO above; sequence VCCQ up before or at the same time as VCC (Alliance datasheet requirement). Ensure VCC ramp is monotonic.
- Reset:
- RST_n is the hardware reset pin (active low). Hold high for normal operation; optionally connect to an ESP32 GPIO for controlled resets. Use a pull‑up to VCCQ as specified in the chosen eMMC’s datasheet.
- Pull resistors (per Samsung datasheet):
- CMD pull‑up RCMD in the range 4.7 kΩ to 100 kΩ to prevent bus floating.
- DAT0–DAT7 pull‑ups RDAT in the range 10 kΩ to 100 kΩ. For a 4‑bit bus, populate DAT0–DAT3.
- Decoupling and bulk caps:
- Place a bulk capacitor of 10 µF (or higher) on VCC and on VCCQ near the eMMC (Alliance datasheet).
- Add high‑frequency decoupling at each VCC/VCCQ ball (place as close as possible as directed by the datasheet).
- Signal integrity:
- If needed, add small series damping (for example, 22–33 Ω) at the source on CLK (and optionally CMD/DAT) to tame ringing; tune by measurement on your PCB.
Ready.
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo15.7k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
SPeedy AI Pendent
Properties
Python
USB, WiFi, Bluetooth
Wi-Fi, Bluetooth
3.3V
10 to 90%
RoHS, FCC, CE
-10°C to 70°C
PCB Trace
RGB LED ring and 1 Button
20,000 hrs
10 years
Wearables
3
2 Microphones and 1 Button
Consumer Electronics
LiPo 2000 mAh
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Arrow | $18.26–$20.56 |
Digi-Key | $18.99–$35.10 |
LCSC | $78.17 |
Mouser | $31.97 |
Verical | $7.34–$13.00 |
Controls
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