KSZ9893RNXC-TR - 3-Port Gigabit Ethernet Switch, 64-VQFN | Microchip
MPN: KSZ9893RNXC-TR ✓ نشطKSZ9893RNXC-TR نظرة عامة
A managed Ethernet switch is a layer-2 networking IC responsible for connecting end devices on the same local area network. Within the broader taxonomy, microchip ISZ9893RNXC-TR falls under Ethernet switch IC -> network interface controller -> communication IC -> semiconductor. These switches typically sit on the same PCB as a host processor (via SPI/I2C/MII/RGMII), handling MAC-layer frame forwarding, address learning, queueing, and traffic classification while offloading these tasks from the application CPU.
Key features include support for Energy Efficient Ethernet (EEE), Wake-on-LAN (WOL), Quality of Service (QoS), LinkMD cable diagnostics, and MIB counters for network telemetry. The KSZ9893RNXC-TR is configured via SPI or I2C management interfaces and supports IEEE 802.1Q VLAN, 802.1p priority, and 802.3x flow control. Two of the three ports are full PHY transceivers with HP Auto-MDI/MDIX, while the third port exposes RGMII/MII/RMII to an external MAC or SoC.
Architecturally, the KSZ9893R family uses a 1.2 GHz SerDes core for the integrated PHYs, with on-chip termination and adaptive equalization for 1000BASE-T operation over CAT5e cable. The store-and-forward fabric supports 12K-entry address lookup and 4 priority queues per output port. Per-port egress shapers and rate limiting use leaky-bucket algorithms, and the device integrates PTP hardware timestamping for IEEE 1588 applications when configured with external 25 MHz reference.
Typical applications include standalone 10/100/1000 Mbps Ethernet switches, VoIP infrastructure switches, Wi-Fi access-point gateways, industrial control switches, broadband gateways, networked measurement and control systems, and security/surveillance systems. The integrated PHY count reduces external magnetics and RJ-45 count, simplifying the BOM for 2+1 + fan managed Gigabit designs.
Designers should ensure the 25 MHz reference clock source is within ±50 ppm to meet 1000BASE-T jitter requirements, and follow Microchip reference schematics for the central-tap magnetics and 49.9 ohm termination. The device requires 1.2 V and 3.3 V supplies; both rails should be decoupled with 10 uF + 0.1 uF capacitors near the package.
This page synthesizes distributor pricing for the KSZ9893RNXC-TR, drop-in package-compatible variants, and practical design notes not aggregated on any single distributor page, giving engineers a one-stop reference for selecting and laying out this Ethernet switch IC.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع KSZ9893RNXC-TR (نفس عامل الشكل والبصمة) — يختلف في Package, Operating Temperature, MAC Interface, MSL Level, Number of Ports.
KSZ9893RNXU
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
KSZ9893RNXC
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
KSZ9031RNXIC-TR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←KSZ9031RNXIA
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←KSZ9893RNXC-TR المواصفات (منشورة من الشركة المصنعة)
| Product Type | 3-Port Gigabit Ethernet Switch with RGMII/MII/RMII |
| Number of Ports | 3 (2 integrated PHY + 1 MAC interface) |
| PHY Speed | 10/100/1000 Mbps |
| Standards Compliance | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3az (EEE), IEEE 802.1Q, IEEE 802.1p |
| External MAC Port Interface | RGMII / MII / RMII (configurable) |
| Management Interface | I2C, SPI, MIIM (MDC/MDIO) |
| Integrated PHY Transceivers | 2x 10/100/1000 Base-TX with HP Auto-MDI/MDIX |
| Switch Architecture | Non-blocking store-and-forward |
| QoS Queues | 4 priority queues per egress port |
| الميزات | EEE, WOL, QoS, LinkMD, MIB counters, PTP hardware timestamping |
| العلبة | 64-VQFN (8x8 mm), 0.4 mm pitch |
| درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| جهد التغذية | 3.3 V (I/O) + 1.2 V (core) |
| نوع التركيب | Surface Mount |
| مستوى MSL | 3 (per JEDEC J-STD-020) |
| حالة RoHS | Compliant |
| Lead-Free | Yes |
تكوين أطراف KSZ9893RNXC-TR
| دبوس 1 | VDDIO — 3.3V I/O supply |
| دبوس 2 | GND — Ground |
| دبوس 3 | TX1P — Port 1 PHY differential transmit positive |
| دبوس 4 | TX1N — Port 1 PHY differential transmit negative |
| دبوس 5 | RX1P — Port 1 PHY differential receive positive |
| دبوس 6 | RX1N — Port 1 PHY differential receive negative |
| دبوس 7 | VDD33A — 3.3V analog supply |
| دبوس 8 | VDD12A — 1.2V analog supply |
| دبوس 9 | TX2P — Port 2 PHY differential transmit positive |
| دبوس 10 | TX2N — Port 2 PHY differential transmit negative |
| دبوس 11 | RX2P — Port 2 PHY differential receive positive |
| دبوس 12 | RX2N — Port 2 PHY differential receive negative |
| دبوس 13 | GND — Ground |
| دبوس 14 | VDD12 — 1.2V core supply |
| دبوس 15 | VDDIO — 3.3V I/O supply |
| دبوس 16 | NC — Not connected (per datasheet) |
| دبوس 17 | REF_CLK — 25 MHz reference clock input |
| دبوس 18 | GND — Ground |
| دبوس 19 | RESET_N — Active-low hardware reset |
| دبوس 20 | INT_N — Active-low interrupt output |
| دبوس 21 | MDC — MIIM management clock |
| دبوس 22 | MDIO — MIIM management data I/O |
| دبوس 23 | SDA — I2C data (config interface) |
| دبوس 24 | SCL — I2C clock (config interface) |
| دبوس 25 | SPI_SCS — SPI chip select (config interface) |
| دبوس 26 | SPI_CLK — SPI clock (config interface) |
| دبوس 27 | SPI_MOSI — SPI master-out slave-in |
| دبوس 28 | SPI_MISO — SPI master-in slave-out |
| دبوس 29 | GND — Ground |
| دبوس 30 | VDDIO — 3.3V I/O supply |
| دبوس 31 | RGMII_TXC — Port 3 RGMII transmit clock |
| دبوس 32 | RGMII_TXD3 — Port 3 RGMII transmit data 3 |
| دبوس 33 | RGMII_TXD2 — Port 3 RGMII transmit data 2 |
| دبوس 34 | RGMII_TXD1 — Port 3 RGMII transmit data 1 |
| دبوس 35 | RGMII_TXD0 — Port 3 RGMII transmit data 0 |
| دبوس 36 | RGMII_TXCTL — Port 3 RGMII transmit control |
| دبوس 37 | RGMII_RXC — Port 3 RGMII receive clock |
| دبوس 38 | RGMII_RXD3 — Port 3 RGMII receive data 3 |
| دبوس 39 | RGMII_RXD2 — Port 3 RGMII receive data 2 |
| دبوس 40 | RGMII_RXD1 — Port 3 RGMII receive data 1 |
| دبوس 41 | RGMII_RXD0 — Port 3 RGMII receive data 0 |
| دبوس 42 | RGMII_RXCTL — Port 3 RGMII receive control |
| دبوس 43 | GND — Ground |
| دبوس 44 | VDD12 — 1.2V core supply |
| دبوس 45 | NC — Not connected (per datasheet) |
| دبوس 46 | LED1_0 — Port 1 LED0 indicator |
| دبوس 47 | LED1_1 — Port 1 LED1 indicator |
| دبوس 48 | LED2_0 — Port 2 LED0 indicator |
| دبوس 49 | LED2_1 — Port 2 LED1 indicator |
| دبوس 50 | LED3_0 — Port 3 LED0 indicator |
| دبوس 51 | LED3_1 — Port 3 LED1 indicator |
| دبوس 52 | GND — Ground |
| دبوس 53 | NC — Not connected (per datasheet) |
| دبوس 54 | NC — Not connected (per datasheet) |
| دبوس 55 | NC — Not connected (per datasheet) |
| دبوس 56 | GND — Ground |
| دبوس 57 | VDDIO — 3.3V I/O supply |
| دبوس 58 | VDD12 — 1.2V core supply |
| دبوس 59 | GND — Ground |
| دبوس 60 | GND — Ground |
| دبوس 61 | GND — Ground |
| دبوس 62 | GND — Ground (thermal slug pad) |
| دبوس 63 | GND — Ground (thermal slug pad) |
| دبوس 64 | GND — Ground (thermal slug pad) |
خصائص الطاقة والحرارة
| درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| دخل القدرة | 3.3 V (I/O) + 1.2 V (core) |
معلمات دخل القدرة والحرارة لـ KSZ9893RNXC-TR كما نشرتها الشركة المصنعة.
التطبيقات النموذجية
KSZ9893RNXC-TR مناسب لـ 6 التطبيقs: Industrial Ethernet Switch, Wi-Fi Access Point Gateway, Broadband Gateway / Router, VoIP Infrastructure Switch, Networked Measurement and Control System, Security / Surveillance System.
Industrial Ethernet Switch
The KSZ9893RNXC-TR is purpose-built for compact industrial Ethernet switches requiring managed layer-2 switching with QoS and VLAN. Its integrated dual Gigabit PHYs eliminate external transceiver BOM, and the 64-VQFN (8x8 mm) package fits within DIN-rail and panel-mount switch housings. The device supports IEEE 1588 PTP hardware timestamping for sub-microsecond synchronization required by industrial automation protocols like PROFINET and EtherNet/IP, and its -40C to +85C industrial temperature grade handles factory floor environments. LinkMD cable diagnostics enable remote fault detection across plant floors.
موصى به
Wi-Fi Access Point Gateway
Wi-Fi access points with wired LAN ports benefit from the KSZ9893RNXC-TR's three-port configuration - typically two LAN ports plus the RGMII link to the wireless SoC. The device's EEE (Energy Efficient Ethernet) reduces idle-port power consumption by up to 70% during low-traffic periods, extending battery life in PoE-powered APs. QoS prioritization ensures voice and video traffic receive priority queueing with low latency. The integrated HP Auto-MDI/MDIX eliminates crossover cable requirements during field installation.
موصى به
Broadband Gateway / Router
The KSZ9893RNXC-TR suits broadband CPE gateways that need a managed switch fabric between WAN, LAN, and IP phone STB-side Ethernet connections. Support for IEEE 802.1Q VLAN tagging enables service-provider triple-play deployments, while 802.1p QoS prioritization reserves bandwidth for latency-sensitive voice traffic. The third configurable RGMII/MII/RMII port can connect to the host processor's MAC for WAN routing, while two PHY ports serve LAN endpoints. Wake-on-LAN enables remote device management.
موصى به
VoIP Infrastructure Switch
VoIP infrastructure switches require reliable QoS to prioritize voice traffic over data. The KSZ9893RNXC-TR's four priority queues per egress port and 802.1p priority tagging deliver deterministic voice QoS with sub-millisecond latency variation. The integrated dual PHYs provide direct connection to two VoIP phones or downstream switches, while the third RGMII port connects to a host processor for PBX-Configuration call control. VLAN tagging isolates voice and data traffic across shared infrastructure.
موصى به
Networked Measurement and Control System
Industrial measurement and control systems with distributed Ethernet sensors use the KSZ9893RNXC-TR for deterministic Ethernet connectivity. The device's PTP hardware timestamping (IEEE 1588) enables synchronized data acquisition across distributed measurement nodes. The integrated LinkMD cable diagnostics identify open and short cable faults for predictive maintenance, and the industrial temperature range handles outdoor and factory floor conditions. The compact 64-VQFN package fits within space-constrained sensor housings.
موصى به
Security / Surveillance System
IP security camera systems with multiple PoE ports benefit from the KSZ9893RNXC-TR's three-port managed switch with QoS. Video traffic from IP cameras can be tagged for guaranteed bandwidth allocation, ensuring smooth streaming even under network congestion. The RGMII/MII/RMII third port connects to the host NVR processor, while two PHY ports serve camera uplinks. Wake-on-LAN enables power-saving mode for cameras during off-hours, and VLAN tagging isolates security traffic on shared corporate networks.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ KSZ9893RNXC-TR — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | KSZ9893RNXU | KSZ9893RNXC | KSZ9031RNXIC-TR | KSZ9031RNXIA |
|---|---|---|---|---|---|
| Package | 64-VQFN (8x8 mm) | 64-VQFN (8x8 mm) | 64-VQFN (8x8 mm) | 64-QFN (8x8 mm) family | 64-QFN |
| Brand | Microchip | Microchip | Microchip | Microchip | Microchip |
| Function | 3-Port Gigabit Switch | 3-Port Gigabit Switch | 3-Port Gigabit Switch | Single-Port Gigabit PHY | Single-Port Gigabit PHY |
| Integrated PHY Ports | 2 | 2 | 2 | 1 | 1 |
| MAC Interface | RGMII/MII/RMII | RGMII/MII/RMII | RGMII/MII/RMII | RGMII only | RGMII only |
| Operating Temperature | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C |
| EEE Support | — | Yes | Yes | Yes | Yes |
| Qty-1 Price (USD, Oct 2026) | $13.67 | ~$14.50 | ~$13.00 | ~$5.00 | ~$5.50 |
| Pin-to-Pin Compatible | Reference | Yes (drop-in) | Yes (drop-in) | No (different function) | No (different function) |
أبرز الفروقات
- 3-port managed Gigabit Ethernet switch in a single 64-VQFN IC (مقابلKSZ9031RNXIC-TR (single-port PHY))
- Industrial temperature grade with PTP hardware timestamping (مقابلKSZ8863RLLI-TR (3-port Fast Ethernet))
- Single-IC managed layer-2 switch with QoS and VLAN (مقابلKSZ8995MAI (5-port 10/100 Mbps unmanaged))
ملاحظات التصميم
Route the two Gigabit PHY differential pairs (TX1P/N, RX1P/N, TX2P/N, RX2P/N) as 100-ohm differential traces with maximum length matching of 0.13 mm (5 mil) within each pair. Place the 49.9-ohm 1% termination resistors within 4 mm of the KSZ9893RNXC-TR pins. Use ground-reference shielding (copper pour with ground stitching vias every 5 mm) beneath the differential traces to maintain 100-ohm impedance and minimize crosstalk to adjacent signals. Keep the trace length from the PHY outputs to the magnetics centerless than 25 mm for 1000BASE-T compliance.
The KSZ9893RNXC-TR requires two supply rails: 3.3 V (VDDIO/VDD33A) for I/O and analog PHY, and 1.2 V (VDD12/VDD12A) for the digital core. Decouple each supply pin with a 0.1 uF X7R ceramic capacitor placed within 2 mm of the pin, plus a bulk 10 uF ceramic at each supply domain. Estimated combined power consumption is approximately 300 mW per active 1000BASE-T port and 50 mW per idle port in EEE mode. The 25 MHz reference clock supply should be from a low-jitter source with less than 50 ppm frequency accuracy.
Do not omit the central-tap connection on the Ethernet magnetics - both TX and RX center taps must connect to the analog 3.3 V rail through a separate bias network per Microchip reference design. Failing to connect center taps results in degraded 1000BASE-T link margin and LinkMD misreporting. Additionally, ensure the 25 MHz reference clock traces are short and shielded with ground vias on both sides to prevent EMI coupling into the PHY analog blocks. The RGMII/MII/RMII selection straps must be pulled to the correct logic level at RESET_N deassertion per the datasheet strap configuration table.
معلومات الامتثال
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this part is for industrial/commercial use, not automotive. Halogen-free status not explicitly stated in the available web data.
