Key facts
- Brand
- Micrel
- Model
- KSZ8841
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-03
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Micrel KSZ8841-16/32 Ethernet MAC Controller Datasheet
The KSZ8841‑16/32 is a single‑chip Ethernet MAC controller offering IEEE 802.3 compliance, Wake‑on‑LAN, and LinkMD™ cable diagnostics. It provides a flexible 8‑bit, 16‑bit, or 32‑bit generic host processor interface and integrates a unique dynamic memory pointer with 8 KB of fully usable buffer for both TX and RX directions.
The device is supplied in a 128‑pin PQFP package (optional 128‑pin LQFP) and operates from a single 3.3 V supply with 5 V tolerant I/O. It supports 10BASE‑T and 100BASE‑TX Ethernet speeds, includes auto‑MDIX, and features extensive power‑management options for low‑power operation in commercial (0 °C to +70 °C) and industrial (‑40 °C to +85 °C) temperature ranges.
Micrel KSZ8841 specifications
| Power Supply | 3.3 V single supply, 5 V tolerant I/O |
|---|---|
| Internal Memory | 8 KB for TX/RX FIFO buffers |
| Supported Ethernet Speeds | 10BASE‑T, 100BASE‑TX |
| Reference Clock | 25 MHz |
| Maximum Bus Frequency | 50 MHz |
| Temperature Range (Commercial) | 0 °C to +70 °C |
| Temperature Range (Industrial) | ‑40 °C to +85 °C |
| Package | 128‑Pin PQFP (optional 128‑Pin LQFP) |
Source: Micrel KSZ8841-16/32 Ethernet MAC Controller Datasheet
All Micrel KSZ8841 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the power supply voltage for the KSZ8841‑16/32?
It uses a single 3.3 V supply with 5 V tolerant I/O buffers.
From: Micrel KSZ8841-16/32 Ethernet MAC Controller Datasheet
How much internal memory does the controller provide for TX and RX?
The device includes 8 KB of internal memory shared between TX and RX FIFO buffers.
From: Micrel KSZ8841-16/32 Ethernet MAC Controller Datasheet
How many PCB layers does Micrel recommend for high‑speed Ethernet designs?
Micrel recommends using at least a four‑layer PCB.
What is the core voltage output of the VDDCO pin?
The VDDCO pin provides a 1.2 V digital core voltage.