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.
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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.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
