Wpce773la0dg Datasheet Pdf Better 2021 (2025)

Title: [Resource] Found a better scan for the WPCE773LA0DG Datasheet (Cleaner schematics & PCB info)

Hey everyone,

I was digging into a teardown of an old laptop motherboard and needed the pinout for the NEC/Renesas WPCE773LA0DG (the embedded controller/KBC chip). If you’ve tried looking this up before, you know the struggle: most of the PDFs floating around on the standard datasheet aggregator sites are pretty terrible.

The copies I found on the first few pages of search results were low-resolution scans—almost unreadable—and usually watermarked or missing the mechanical dimensions.

After some digging through archived manufacturer FTPs, I found a version that is significantly better quality. wpce773la0dg datasheet pdf better

Why this version is an upgrade:

Readable Pinouts: You can actually distinguish the ball map grid (BGA) without squinting.
Cleaner Schematics: The internal block diagrams aren't pixelated mush.
No Watermarks: It’s the raw manufacturer document.

Download Link: [Link to the clean PDF hosted on Archive.org / Your preferred file host]

(If the link is down, DM me and I can re-upload it. I figured I'd post this here to save someone else the headache of trying to read a blurry scan on a 4k monitor.)

Summary Checklist

[ ] Verify exact markings on your chip.
[ ] Search WPCE773LA0DG + Dell + schematic.
[ ] Look for W83L773DG as a generic alternative.
[ ] If for repair – get the board schematic, not just the IC datasheet.
[ ] Avoid fake “instant PDF download” sites (malware risk).

Section 4: Timing Diagrams (LPC Bus & Power Sequencing)

Poorly scanned datasheets ruin these. A better PDF has zoomable vector diagrams showing: Title: [Resource] Found a better scan for the

LPC read/write cycles – vital for debugging BIOS-EC communication.
Power-on sequence: VSB → RSMRST# → PWRBTN# → SLP_S3# → VR_ON.

If your datasheet’s timing diagrams are unreadable, you do not have a “better” copy.

Section 1: General Description (Pages 1–10)

Look for: Operating voltage (typically 3.3V and 1.8V domains), package type (LQFP-128 or QFN-88 – the WPCE773LA0DG is often LQFP-128), and temperature range (commercial: 0–70°C, industrial: -40–85°C).
Better feature: A table comparing WPCE773LA0DG vs. WPCE775LA0DG – key differences in flash memory size and UART count.

Best sources:

Winbond official site (if generic part):
- www.winbond.com → Search for W83L773
Datasheet aggregators (use with caution):
- Alldatasheet.com
- Datasheet4U.com
- DatasheetArchive.com
For OEM-specific WPCE773LA0DG:
- This is likely a proprietary Dell EC – not publicly released.
- Instead, search:
  "WPCE773LA0DG" Dell schematic
  Dell Latitude E6430 embedded controller datasheet

Step 3: Best Alternative – Identify the Real Chip

Check the full marking on the chip – it may have more lines:

| Line on IC | Example | |------------|---------| | Line 1 | WPC | | Line 2 | E773LA0DG | | Line 3 | (date code) |

Often the real base part is something like:

W83L773DG (Winbond LPC I/O)
W83373DG (DDR termination regulator)
WPCE773LA0DG (Embedded controller for laptops – very likely!)

WPCE773LA0DG is known as an Embedded Controller used in Dell laptops (e.g., Latitude E6xxx series). Readable Pinouts: You can actually distinguish the ball