KSZ8794 _ BDTIC 中国领先电子元器件代理商

KSZ8794

The KSZ8794CNX is a highly integrated, Layer 2 managed, four-port switch with numerous features designed to reduce system cost. It is intended for cost-sensitive applications requiring three 10/100Mbps copper ports and one 10/100/1000Mbps Gigabit uplink port.

The KSZ8794CNX incorporates a small package outline, low power consumption with internal biasing, and on-chip termination. Its extensive features set includes enhanced power management, programmable rate limiting and priority ratio, tagged and port-based VLAN, port-based security and ACL rule-based packet filtering technology, QoS priority with four queues, management interfaces, enhanced MIB counters, high-performance memory bandwidth, and a shared memory-based switch fabric with non-blocking support.

The KSZ8794CNX provides support for multiple CPU data interfaces to effectively address both current and emerging fast Ethernet and Gigabit Ethernet applications where the GMAC interface can be configured to any of RGMII, MII and RMII modes. The KSZ8794CNX is built on Microchip's latest industry-leading Ethernet analog and digital technology, with features designed to offload host processing and streamline your overall design:

- Three integrated 10/100Base-T/TX MAC/PHYs
- One integrated 10/100/1000Base-T/TX GMAC with selectable RGMII, MII or RMII interfaces
- Small 64-pin QFN package

A robust assortment of power management features including Energy Efficient Ethernet (EEE), PME and WoL have been designed in to satisfy energy efficient environments. All registers in the MAC and PHY units can be managed through the SPI interface. MIIM PHY registers can be accessed through the MDC/MDIO interface.

Microchip's complimentary and confidential LANCheck® online design review service is available for customers who have selected our products for their application design-in. The is subject to Microchip's and requires a myMicrochip account.

产品特性

New generation switch with three MACs, one GMAC (for uplink) and three PHYs that are fully compliant with the IEEE 802.3u standard
10/100Base-T/TX switch system which combines a switch engine, frame buffer management, address lookup table, queue management, MIB counters, MAC, and PHY transceivers
Rapid spanning tree support (RSTP) for topology management
Microchip's LinkMD® cable diagnostic capabilities for determining cable opens, shorts, and length
IEEE 802.1q VLAN support for up to 128 active VLAN groups (full range 4096 of VLAN IDs)
Support 802.1x port-based security and MAC-based authentication via access control lists (ACL)
802.1p, DiffServ-based and Re-mapping of 802.1p priority field, per-port basis on four priority levels
4 priority queues with dynamic mapping for IEEE 802.1P, IPV4 ToS (DiffServ), IPV6 Traffic Class, etc
Programmable rate limiting at the ingress and egress ports on a per port basis
High-speed SPI (4-wire, up to 50MHz) interface to access all internal registers
MII management (MIIM, MDC/MDIO 2 wire) interface to access all PHY registers per IEEE 802.3 specification
Control registers configurable on-the-fly
Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port or MII/RMII
MIB counters for fully-compliant statistics gathering (36 MIB counters per port)
Full-chip software power-down
Energy detect power-down (EDPD)
Support IEEE P802.3az Energy Efficient Ethernet (EEE)
Wake on LAN (WoL) support

技术参数

Parameter Name Value	Value
Description 4-Port 10/100 Ethernet Switch with GMII/RGMII	4-Port 10/100 Ethernet Switch with GMII/RGMII
Ethernet Bandwidth 10Base-T/100Base-TX	10Base-T/100Base-TX
MAC 4	4
PHY 3	3
TX/RX RAM Buffer(Bytes) n/a	n/a
Interrupt Pin Yes	Yes
LEDs 6	6
Op. Voltage (V) 3.3	3.3
# Ethernet Ports 4	4
Interface RGMII/MII/RMII	RGMII/MII/RMII
Temp. Range Min. (°C) -40	-40
Temp. Range Max. (°C) 85	85
# of Ports 4	4
Host Interface RGMII/MII/RMII	RGMII/MII/RMII
# of Ether Ports 4	4
Managed Yes	Yes
Copper Support 10/100 (3)	10/100 (3)
MII Yes	Yes
RMII Yes	Yes
RGMII Yes	Yes
Supply Voltage (V) 3.3	3.3
Vdd I/O (V) 1.8/2.5/3.3	1.8/2.5/3.3
LinkMD Cable Diag Yes	Yes
Int Term Yes	Yes
Pin-Pin With n/a	n/a
ESD Rating (KV) 5KV	5KV
Smart Power Adjust Yes	Yes
WOL Yes	Yes
Largest Pkt-Size Bytes 2000	2000
IPV6 Yes	Yes
# of VLAN 128	128
Flow Ctrl Yes	Yes
Rate Limiting Yes	Yes
Rapid Spanning Tree Yes	Yes
Static MAC Addr Yes	Yes

文档资料

KSZ8794CNX - Integrated 4-Port 10/100 Managed Ethernet Switch	Data Sheets	04/18/2016	1707KB
KSZ879x/KSZ877x/KSZ876x Silicon Errata and Data Sheet Clarification	Errata	01/22/2016	197KB
AN2157 - Transient Protection in Power Over Ethernet Applications	AppNote	05/24/2016	229KB
Micrel AN 109 - Unmanaged Ethernet Redundant Ring	AppNote	10/02/2015	67KB
Micrel AN 114 - Virtual LAN	AppNote	10/02/2015	85KB
Micrel AN 24 - Ethernet over POF	AppNote	10/01/2015	149KB
Micrel AN 25 - EtherSynch - Synchronization Perfected	AppNote	10/01/2015	267KB
Micrel AN 27 - Fast Ethernet: Delivery of Data in Industrial Applications	AppNote	10/01/2015	108KB
Micrel AN 31 - General PCB Design and Layout Guidelines	AppNote	10/01/2015	104KB
Micrel AN 32 - Get in Sync!	AppNote	10/01/2015	1432KB
Micrel AN 44 - Interfacing Fast Ethernet to Processors	AppNote	10/01/2015	149KB
Micrel AN 45 - Interfacing Fast Ethernet Transceivers to MAC Processors	AppNote	10/01/2015	122KB
Micrel AN 57 - Management Interfaces for Micrel Switches	AppNote	10/02/2015	171KB
Micrel AN 8 - Capacitive Coupling Ethernet Transceivers without Using Transformers	AppNote	09/30/2015	103KB
Micrel AN 81 - PHY Speed and Duplex Configuration	AppNote	10/02/2015	132KB
Micrel AN 91 - Reducing Maintenance Costs With Cable Diagnosis and Micrels LinkMD	AppNote	10/02/2015	420KB
Micrel ANLAN207 - Management Interfaces for Micrel Switches	AppNote	11/12/2015	171KB
KSZ8795/KSZ8794 Linux driver for revision 3.14 tared	Software Library	01/21/2016
KSZ8795/KSZ8794 Linux driver for revision 3.18 tared	Software Library	01/21/2016
KSZ8795/KSZ8794 Linux driver for revision 3.3 tared	Software Library	01/21/2016
Switch usage guide for Micrel and KSZ products	Software Library	01/27/2016
KSZ8794CNX_DP_V1.0.zip	Design Guides	02/19/2016	5028KB

订购型号

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
KSZ8794CNXCC	64	VQFN	0C to +70C	TRAY	4.66	3.88	3.53	3.26	3.09
KSZ8794CNXIC	64	VQFN	-40C to +85C	TRAY	5.75	4.79	4.35	4.02	3.81

相类似产品

Product	Ethernet Bandwidth	Interface	Price5K
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KSZ8775	10Base-T/100Base-TX	RGMII/MII/RMII	$3.25
KSZ8794	10Base-T/100Base-TX	RGMII/MII/RMII	$3.09
KSZ8795	10Base-T/100Base-TX	GMII/RGMII/MII/RMII	$3.20
KSZ8841	10Base-T/100Base-TX		$5.36
KSZ8842	10Base-T/100Base-TX	PCI/32-/16-/8-bit	$7.73
KSZ8852	10Base-T/100Base-TX	8-/16-Bit	$6.71
KSZ8862	10Base-T/100Base-TX/FX	8-/16-Bit	$10.82
KSZ8863	10Base-T/100Base-TX/FX	MII/RMII	$2.65
KSZ8864	10Base-T/100Base-TX	MII/RMII	$3.61
KSZ8873	10Base-T/100Base-TX/FX	MII(2)/RMII	$2.98
KSZ8893	10Base-T/100Base-TX/FX	MII/RMII	$5.57
KSZ8895	10Base-T/100Base-TX/FX	MII/RMII	$3.09
KSZ8993	10Base-T/100Base-TX/FX	MII/RMII	$3.92
KSZ8995	10Base-T/100Base-TX/FX	MII/RMII	$4.28
KSZ8997	10Base-T/100Base-TX	10Base-T/100Base-TX	$11.13
KSZ8999	10Base-T/100Base-TX/FX	MII	$11.77
LAN9303	10Base-T/ 100Base-TX	MII/RMII/Turbo MII	$3.97
LAN9303M	10Base-T/ 100Base-TX	MII/RMII/Turbo MII	$4.82
LAN9311	10Base-T/ 100Base-TX	16 bit Host Bus	$7.36
LAN9312	10Base-T/ 100Base-TX	32 bit Host Bus	$8.40
LAN9313	10Base-T/ 100Base-TX	MII	$6.50
LAN9352	10Base-T/ 100Base-TX	HBI SPI/SQI	$6.75
LAN9353	10Base-T/ 100Base-TX	MII/RMII/Turbo MII	$3.64
LAN9354	10Base-T/ 100Base-TX	RMII	$3.41
LAN9355	10Base-T/ 100Base-TX	MII/RMII/Turbo MII	$4.20

器件无铅环保信息

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
KSZ8794CNXIC	0.177500	1.026923	64	VQFN	8x8x0.9mm	Matte Tin	e3
KSZ8794CNXIC-TR	0.177500	0.788000	64	VQFN	8x8x0.9mm	Matte Tin	e3
KSZ8794CNXCC	0.177500	1.026923	64	VQFN	8x8x0.9mm	Matte Tin	e3
KSZ8794CNXCC-TR	0.177500	0.788000	64	VQFN	8x8x0.9mm	Matte Tin	e3