LM7805 Guide: Pinout, Heat Limits and Buck Alternatives
Work out whether a 7805 can power your board: check its pins, input headroom, realistic heat budget and the changes required for a buck replacement.
Read articleMCP23S17T-E/ML - Microchip, QFN-28-EP(6x6)
Regular price
$1.23
After you place an order, our sales team will send written confirmation of the final price, shipping charges, and estimated delivery lead time. Import duties, taxes, brokerage fees, and other destination charges are the customer's responsibility. When needed, we can assist with available product information and customs documents for import declaration; final customs clearance and payment remain the customer's responsibility.
Couldn't load pickup availability
Customer Service Team
Questions about pricing, stock or sourcing? Our team is happy to help.
Typically replies within 1 business hour
Order & shipping notice
- Prices include applicable taxes; import duties and customs clearance are not included.
- Prefer your own carrier? Choose to use your DHL / FedEx / UPS account at checkout.
- Genuine & original parts, 12-month warranty, DOA replacement.
- Volume pricing available for 1,000+ pcs — ask us for a quote.
Quality Certifications
MCP23S17T-E/ML
MCP23S17T-E/ML is a Integrated Circuit from Microchip supplied in a QFN-28-EP(6x6) package.
Available Stock: 1684QFN-28-EP(6x6)Active
ManufacturerMicrochip
PackageQFN-28-EP(6x6)
Stock1684
Standard Pack1600
Pricing & Ordering
Unit Price$1.2263
| Quantity | Unit Price (USD) |
|---|---|
| 1 | $1.2263 |
| 1600 | $1.1855 |
Basic Information
| Manufacturer | Microchip |
|---|---|
| Manufacturer Part Number | MCP23S17T-E/ML |
| Category | Integrated Circuit |
| Package | QFN-28-EP(6x6) |
| MOQ | 1 |
| Standard Pack | 1600 |
| Lifecycle Status | Active |
Technical Attributes
| Interface Type | SPI |
|---|---|
| I/O | 16 |
| Inputoutput | inputoutput |
| current(IOL) | 8mA |
| Clock Frequency (fc) | 10MHz |
| Quiescent Current (Iq) | 1uA |
| inputoutputlow (VOL) | 600mV |
| Features | -bit |
| Operating Voltage | 1.8V ~ 5.5V |
| Operating Temperature | -40°C ~ +125°C |
Inventory and pricing are updated regularly. Technical data is provided for engineering reference. Datasheet is sourced from the original manufacturer.
MANUFACTURER ACCESS
Manufacturers We Source
Browse frequently requested semiconductor and electronic component manufacturers, then search the catalog or submit an RFQ for the exact part you need.
From the desk
Recent Articles
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
Incoming Inspection: Sampling, Tests, and Records
A receiving routine that holds up in an audit: ISO 2859-1 sampling, AQL by part class, cheap-to-expensive test order, and records someone else can reproduce.
Read article
USB 2.0 Pair Routing: Impedance, Skew, and Return Path
At 480 Mb/s a bit is 2.08 ns. 90 ohm impedance, 50 mil skew, and a continuous return path decide whether the link keeps high speed...
Read article
LM317 Guide: Pinout, Resistor Values and Heat Limits
Choose LM317 resistor values, identify the output-connected tab, check minimum load and calculate a realistic heat budget before approving a replacement.
Read article
Crystal Startup: Load Caps, Negative Resistance, Probes
An oscillator that starts on the bench and fails cold has a margin problem. Load capacitor math, the negative-resistance test, and the probe that stops the...
Read article
I2C Timing: Rise Time, Pull-Ups, and Probe Traps
Most I2C failures are rise time and capacitance, not protocol. The 30-70% measurement, the pull-up window, and the probe that changes the answer.
Read article
LM317 Heat: Dissipation, Heatsink Sizing, and the 3 V Rule
The LM317 needs 3 V of headroom and a heatsink sized by one equation. Worked numbers for 12 V to 5 V, the 5 V to...
Read article
Counterfeit and Remarked Components: A Buyer's Checklist
Most counterfeit parts are not clever fakes: they are re-dated, re-marked or re-reeled stock. Five checks a buyer can run before accepting, with the tests that...
Read article