74HC08PW Quad 2-input AND gate Whatsminer CB4-V10 Control Board
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74HC08PW Quad 2-Input AND Gate | Logic IC for Whatsminer CB4-V10 Control Board Repair
The 74HC08PW is a quad 2-input AND gate in the TSSOP-14 SMD package — a high-speed CMOS logic IC used on the Whatsminer CB4-V10 control board for signal-conditioning and logic functions. The "PW" suffix denotes the TSSOP-14 footprint. Pin-compatible with LSTTL.
Headline features: JEDEC JESD7A compliant, HBM JESD22-A114F ESD protection >2000V, MM JESD22-A115-A >200V, operating temperature ranges -40°C to +85°C (commercial) and -40°C to +125°C (industrial). Clamping diodes on the inputs allow current-limited connection above VCC.
When to Replace the 74HC08PW
- CB4-V10 control board fails self-test on logic-section signals.
- Status / control signals stuck at one logic level — gate output fault.
- Visible damage on the TSSOP-14 package — burnt or cracked.
- Scope probe shows incorrect AND-gate output for given input combinations.
74HC08PW Specifications
| Parameter | Specification |
|---|---|
| Function | Quad 2-input AND gate |
| Logic Family | High-speed CMOS (74HC) |
| Package | TSSOP-14 ("PW" suffix) |
| JEDEC Compliance | JESD7A |
| ESD Protection (HBM) | >2000V (JESD22-A114F) |
| ESD Protection (MM) | >200V (JESD22-A115-A) |
| Operating Temperature | -40°C to +85°C / -40°C to +125°C |
| Pin Compatibility | LSTTL |
| Application | Whatsminer CB4-V10 control board logic section |
FAQ — 74HC08PW Quad AND Gate
Q: 74HC08 vs 74HCT08 — which one do I need?
A: 74HC08 = CMOS input levels (V_IH ≈ 0.7 × VCC). 74HCT08 = TTL-compatible input levels (V_IH = 2.0V regardless of VCC). Match the original silk-mark exactly — wrong logic family causes input-threshold issues.
Q: TSSOP-14 vs SOIC-14 vs DIP-14 — package differences?
A: The "PW" suffix is TSSOP-14 (smallest, 0.65mm pitch). "D" = SOIC-14. "N" = DIP-14. Different footprints — match the original board's package.
Q: Rework profile?
A: Hot air at 320°C with flux paste. TSSOP-14 is small (5×4mm body) and sensitive to thermal shock — preheat the board to 100°C before rework.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities.
Related products
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- NL27WZ16DFT2G Dual Buffer
Whatsminer CB4-V10 repair benches stocking 74HC08PW in volume? Email contact@lys-sz.com for tape-and-reel pricing. Worldwide shipping from our Shenzhen warehouse.
Shipping & Customs
🇺🇸🇪🇺 USA & European Union (DDP):
Orders are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world:
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.
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