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W83781D
W83781D - Brand New Winbond Electronics IC Chips
- One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
GENERAL DESCRIPTION
The W83781D/G is a hardware monitoring IC for personal computers, server
computers, or microprocessor based systems. W83781D/G can be used to monitor
several critical hardware parameters of the system, including power supply
voltages, fan speeds, and temperatures, which are very important for a high-
end computer system to work stablely and properly. W83781D provides both ISA
and I2CTM serial bus interface.
A 8-bit analog-to-digital converter (ADC) was built inside W83781D/G. The
W83781D/G can monitor 3 external thermistor temperature sensors, 5 positive
analog voltage inputs, two inverting inputs (for monitoring negative
voltages), and also three fan tachometer outputs. There is also one input for
case open detection circuits.
FEATURES
Monitoring Items
• 3 thermal inputs from remote thermistors
• 5 positive voltage inputs (typical for +12V, +5V, +3.3V, VcoreA, VcoreB)
• 2 op amps for negative voltage monitoring (typical for -12V, -5V)
• 3 fan speed monitoring inputs
• Case open detection input
• WATCHDOG comparison of all monitored values
• Programmable hysteresis and setting points for all monitored items
Actions Enabling
• Warning signal pop up in application software
• Beep tone warning
• Fan ON/OFF control
• Issue SMI#, IRQ to activate system protection
General
• ISA and I2CTM serial bus interface
• 5 VID input pins for CPU Vcore identification
• Initial power fault beep (for +3.3V, VcoreA)
• Master reset input to W83781D/G
• Independent power plane of digital Vcc and analog Vcc (input to IC)
• Intel LDCMTM compatible
• Winbond monitoring application software support
• Input clock rate optional for 24, 48, 14.318 MHz
Package
• 48-pin LQFP
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
| United States | 3 - 5 days | 10-15 days | |
| Canada | 3 - 5 days | 10-20 days | |
| Mexico | 3 - 5 days | 10-17 days | |
| Germany | 3 - 5 days | 10-12 days | |
| Italy | 3 - 5 days | 10-15 days | |
| United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |