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) |

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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 |

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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 |

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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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