Beken Corporation Manufacturer Skill

Company Overview

Beken Corporation specializes in WiFi and Bluetooth Low Energy (BLE) System-on-Chip (SoC) solutions, primarily targeting IoT applications including smart home, audio, and wearable devices.

MPN Structure

Beken MPNs follow this general structure:

[PREFIX][SERIES][-PACKAGE]
   |       |        |
   |       |        +-- Optional: Package code (QFN-32, QFN-40)
   |       +-- Series number (7231, 3431, etc.)
   +-- BK prefix (Beken)

Example Decoding

BK7231
|  |||
|  ||+-- 1 = Variant
|  |+-- 3 = Submodel
|  +-- 72 = WiFi + BLE series
+-- BK = Beken prefix

BK7231-QFN-32
|  |||   |  |
|  |||   |  +-- 32 = 32-pin
|  |||   +-- QFN = Package type
|  ||+-- 1 = Variant
|  |+-- 3 = Submodel
|  +-- 72 = WiFi + BLE series
+-- BK = Beken prefix

BK3432
|  |||
|  ||+-- 2 = BLE 5.0 variant
|  |+-- 3 = Submodel
|  +-- 34 = BLE-only series
+-- BK = Beken prefix

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Series Overview

Series	Wireless Type	Protocol	Application
BK7xxx	WiFi + BLE	WiFi 4/6 + BLE	Smart home, audio
BK3xxx	BLE only	BLE 4.x/5.x	Wearables, sensors

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Product Families

BK7xxx Series - WiFi + BLE Combo Chips

Part Number	WiFi	BLE	Features
BK7231	802.11 b/g/n	BLE 4.2	Basic combo
BK7251	802.11 b/g/n	BLE 5.0	Audio + WiFi
BK7256	802.11ax (WiFi 6)	BLE 5.2	Latest gen

BK3xxx Series - BLE Only Chips

Part Number	BLE Version	Features
BK3431	BLE 4.2	Basic BLE
BK3432	BLE 5.0	Enhanced range

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Package Codes

Code	Package	Pin Count	Description
QFN-32	QFN	32	Quad Flat No-lead, 32-pin
QFN-40	QFN	40	Quad Flat No-lead, 40-pin
QFN-48	QFN	48	Quad Flat No-lead, 48-pin
N	QFN	-	QFN (generic)
Q	QFN	-	QFN (alternate code)

---

Wireless Capabilities

WiFi + BLE Combo (BK7xxx)

Feature	BK7231	BK7251	BK7256
WiFi Standard	802.11n	802.11n	802.11ax
WiFi Band	2.4GHz	2.4GHz	2.4GHz
BLE Version	4.2	5.0	5.2
Audio Support	No	Yes	Yes
Target Market	Basic IoT	Audio IoT	Premium IoT

BLE Only (BK3xxx)

Feature	BK3431	BK3432
BLE Version	4.2	5.0
Range	Standard	Extended
Power	Low	Ultra-low

---

Handler Implementation Notes

Pattern Matching

// WiFi + BLE combo chips (BK7xxx series)
"^BK7[0-9]{3}.*"

// BLE only chips (BK3xxx series)
"^BK3[0-9]{3}.*"

// Combined matching in matches() method
if (type == ComponentType.IC) {
    return upperMpn.matches("^BK7[0-9]{3}.*") ||
           upperMpn.matches("^BK3[0-9]{3}.*");
}

Package Code Extraction

// Check for QFN-xx pattern (handles BK7231-QFN-32)
int qfnIndex = upperMpn.indexOf("QFN");
if (qfnIndex >= 0) {
    // Extract from QFN including pin count
    // Handle both QFN-32 and QFN32 formats
}

// Check suffix letters if no explicit QFN
if (suffix.startsWith("N") || suffix.startsWith("Q")) {
    return "QFN";
}

Series Extraction

// Extract 6 characters for series (e.g., BK7231, BK3432)
if (upperMpn.matches("^BK7[0-9]{3}.*") ||
    upperMpn.matches("^BK3[0-9]{3}.*")) {
    return upperMpn.substring(0, 6);
}

Wireless Type Detection

// BK7xxx = WiFi + BLE
if (upperMpn.matches("^BK7[0-9]{3}.*")) {
    if (upperMpn.startsWith("BK7256")) return "WIFI6_BLE5";
    return "WIFI_BLE";
}

// BK3xxx = BLE only
if (upperMpn.matches("^BK3[0-9]{3}.*")) {
    if (upperMpn.startsWith("BK3432")) return "BLE5";
    return "BLE";
}

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Replacement Compatibility

Same Series Replacements

Parts within the same series are compatible if:

1. Same base series (BK7xxx or BK3xxx)
2. Same or compatible package (QFN with matching pin count)

Cross-Series Restrictions

• BK7xxx (WiFi+BLE) cannot replace BK3xxx (BLE only) - different interfaces
• BK3xxx cannot replace BK7xxx - missing WiFi capability

Package Compatibility

// QFN packages with same pin count are compatible
// QFN-32 != QFN-40 (different pinouts)
// Unspecified package assumes compatible

---

Application Guidelines

Use Case	Recommended Series
Smart home devices	BK7231, BK7256
Audio streaming	BK7251
Wearables	BK3431, BK3432
Low-power sensors	BK3432
WiFi 6 devices	BK7256

---

Development Ecosystem

Beken provides SDK support for:

• FreeRTOS
• Custom Beken OS
• Arduino (community)
• Tuya IoT platform integration

---

Related Files

• Handler:

  manufacturers/BekenHandler.java

• Component types:

  IC

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Learnings & Edge Cases

• Series determines wireless: BK7xxx = WiFi+BLE, BK3xxx = BLE only
• Package in suffix or inline: Can appear as -QFN-32 or BK7231N
• Pin count critical: QFN-32 and QFN-40 are NOT compatible
• BK7256 special: Only WiFi 6 (802.11ax) capable chip
• Audio support varies: BK7251 has audio codec, BK7231 does not
• Tuya integration: Many BK7231 modules are Tuya-based IoT devices
• WiFi capability: Only BK7xxx series supports WiFi, all support BLE

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