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MT7621_Datasheet.pdf
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更新于2023-03-03
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MT7621芯片包括高性能的880 mhz MIPS1004kc cpu核心和高速usb3.0/pcie/sdxc接口,其设计目的是为了实现多种高性能、成本效益高的ieee 8。带有MediaTek(Ralink)WiFi客户端卡的02.11n/ac应用程序。
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loginid=mtnpm@mtncn.com,time=2013-12-05 18:08:21,ip=113.116.12.239,doctitle=MT7621_Datasheet_v0_3.docx,company=MTN Electronics Co. Ltd深圳市邁騰電子有限公司_RLT
MT7621_Data_Sheet_v0.2
Page 1 of 44
MT7621
Network Processor
MT7621
DATASHEET
MEDIATEK CONFIDENTIAL
FOR mtnpm@ mtncn.com USE ONLY
loginid=mtnpm@mtncn.com,time=2013-12-05 18:08:21,ip=113.116.12.239,doctitle=MT7621_Datasheet_v0_3.docx,company=MTN Electronics Co. Ltd深圳市邁騰電子有限公司_RLT
MT7621_Data_Sheet_v0.2
Page 2 of 44
MT7621
Network Processor
Applications:
Internet service router
Wireless router
Home security gateway
NAS devices
iNICs
Switch control processor
Overview
The MT7621 integrates a dual-core MIPS1004K (880MHz), HNAT/ HQoS/
Samba/ VPN accelerators, 5p GbE switch, 2xrGMII, USB3.0, USB2.0, 3xPCIe,
SD-XC. The powerful CPU with rich portfolio is suitable for 802.11ac, LTE
cat4/5, edge, hotspot, VPN, AC (Access Control). It can also connect to touch-
panel, ZigBee/Z-Wave for Internet Service Router and Home Security
Gateway.
For the next generation router, MT7621 provides several dedicated hardware
engines to accelerate the NAT, QoS, Samba and VPN traffic. These
accelerators relief the CPU for other upper layer applications.
Features
Embedded MIPS1004Kc (880 MHz, Dual-Core)
- 32 KB I-Cache and 32 KB D-Cache per core
- 256 KB L2 Cache (shared by Dual-Core)
- SMP capable
- Single processor operation configurable
Gigabit Switch
- 5 ports with full-line rate
- 5-port 10/100/1000Mbps MDI transceivers
One RGMII/MII interface
16-bit DDR2/3 up to 256/512 Mbytes
SPI(2 chip select), NAND Flash(SLC), SDXC
USB3 x 1+ USB2 x 1 or USB2 x 2 (all host)
PCIe host x 3
I2C, UART, JTAG, MDC, MDIO, GPIO
VoIP support (I2S, PCM)
Audio interface (SPDIF-Tx, I2S, PCM)
Deliver the superb Samba performance via USB
2.0/USB 3.0/SD-XC
HW storage accelerator
HW NAT
- 2Gbps wired speed
- L2 bridge
- IPv4 routing, NAT, NAPT
- IPv6 routing, DS-Lite, 6RD, 6to4
HW QoS
- 16 hardware queues to guarantee the min/max
bandwidth of each flow.
- Seamlessly co-work with HW NAT engine.
- 2Gbps wired speed.
HW Crypto Engine
- Deliver 400~500 Mbps IPSec throughput
Green
Intelligent Clock Scaling (exclusive)
DDR2/3: ODT off, Self-refresh mode
Firmware: Linux 2.6 SDK, OpenWRT
RGMII iNIC Driver: Linux 2.4/2.6
Functional Block Diagram
DDR2(2Gbits, 800)
DDR3(4Gbits, 1200)
NAND Flash(8Gbits)
SPI Flash/Codec
UART Interface
USB 3.0 Interface
USB 2.0 Interface
PCIe Interface
Audio Interface
I2C Interface
GPIO/LED
Clock/Timer/Reset/PLL
DRAM Controller
0 1 2 3 4
Gigabit Switch
SPI (2)
PCIeHost (3)
USB 3.0 Host
UART Lite (3)
External Interface
25/40MHz
Crystal
RGMII
NAND/SD-XC
I2C
I2S, PCM, S/PDIF
HW NAT+
HW QoS
Crypto
Storage
Accelerator
USB 2.0 Host
MIPS 1004KEc
(880 MHz)
32K I-Cache
32K D-Cache
MIPS 1004KEc
(880 MHz)
32K I-Cache
32K D-Cache
L2-Cache
256KB
Cache
Coherency Port
Transformer
MEDIATEK CONFIDENTIAL
FOR mtnpm@ mtncn.com USE ONLY
loginid=mtnpm@mtncn.com,time=2013-12-05 18:08:21,ip=113.116.12.239,doctitle=MT7621_Datasheet_v0_3.docx,company=MTN Electronics Co. Ltd深圳市邁騰電子有限公司_RLT
MT7621_Data_Sheet_v0.2
Page 3 of 44
MT7621
Network Processor
Table of Contents
OVERVIEW ....................................................................................................................................................... 2
FEATURES ........................................................................................................................................................ 2
FUNCTIONAL BLOCK DIAGRAM ........................................................................................................................ 2
TABLE OF CONTENTS ........................................................................................................................................ 3
1. MAIN FEATURES .......................................................................................................................................... 5
1.1 SWITCH CORE .................................................................................................................................................... 5
1.1.1 Overview ................................................................................................................................................ 5
1.1.2 Features ................................................................................................................................................. 6
2. PINS ............................................................................................................................................................. 7
2.1 BALL MAP (TOP VIEW) ....................................................................................................................................... 7
2.2 PIN DESCRIPTIONS ............................................................................................................................................. 8
2.3 PIN SHARING SCHEMES ..................................................................................................................................... 15
2.3.1 GPIO pin share scheme ........................................................................................................................ 15
2.3.2 UART pin share scheme ....................................................................................................................... 16
2.3.3 RGMII pin share schemes ..................................................................................................................... 17
2.3.4 WDT_RST_MODE pin share scheme .................................................................................................... 17
2.3.5 PERST_N pin share scheme .................................................................................................................. 17
2.3.6 MDC/MDIO pin share scheme: ............................................................................................................ 17
2.3.7 NAND/SDXC/SPI pin share scheme ...................................................................................................... 18
2.3.8 xMII PHY/MAC Pin Mapping ................................................................................................................ 20
2.4 STRAPPING OPTIONS ........................................................................................................................................ 21
3. ELECTRICAL CHARACTERISTICS ................................................................................................................... 22
3.1 ABSOLUTE MAXIMUM RATINGS .......................................................................................................................... 22
3.2 RECOMMENDED OPERATING RANGE ................................................................................................................... 22
3.3 DC CHARACTERISTICS ....................................................................................................................................... 22
3.4 THERMAL CHARACTERISTICS ............................................................................................................................... 23
3.5 CURRENT CONSUMPTION .................................................................................................................................. 23
3.6 STORAGE CONDITIONS ...................................................................................................................................... 24
3.7 EXTERNAL XTAL SPECFICATION ........................................................................................................................... 24
3.8 AC ELECTRICAL CHARACTERISTICS ....................................................................................................................... 25
3.8.1 DDR SDRAM Interface .......................................................................................................................... 25
3.8.2 RGMII Interface .................................................................................................................................... 27
3.8.3 MII Interface (25 Mhz) ......................................................................................................................... 28
3.8.4 RvMII Interface (PHY Mode MII Timing) (25 Mhz) ............................................................................... 29
3.8.5 SPI Interface ......................................................................................................................................... 30
3.8.6 I
2
S Interface .......................................................................................................................................... 31
3.8.7 PCM Interface ...................................................................................................................................... 32
3.8.8 I2C Interface ......................................................................................................................................... 32
3.8.9 SDIO Interface ...................................................................................................................................... 33
3.8.10 NAND Flash Interface (Samsung Compatibel Device) ........................................................................ 34
3.8.11 Power On Sequence ........................................................................................................................... 37
4. PACKAGE INFORMATION ........................................................................................................................... 38
4.1 DIMENSIONS - TFBGA (11.7 MM X 13.6 MM) ..................................................................................................... 38
MEDIATEK CONFIDENTIAL
FOR mtnpm@ mtncn.com USE ONLY
loginid=mtnpm@mtncn.com,time=2013-12-05 18:08:21,ip=113.116.12.239,doctitle=MT7621_Datasheet_v0_3.docx,company=MTN Electronics Co. Ltd深圳市邁騰電子有限公司_RLT
MT7621_Data_Sheet_v0.2
Page 4 of 44
MT7621
Network Processor
4.1.1 Diagram Key ........................................................................................................................................ 39
4.2 REFLOW PROFILE GUIDELINE .............................................................................................................................. 39
4.3 TOP MARKING ................................................................................................................................................ 40
4.4 ORDERING INFORMATION .................................................................................................................................. 40
5. ABBREVIATIONS ......................................................................................................................................... 41
6. REVISION HISTORY ..................................................................................................................................... 44
MEDIATEK CONFIDENTIAL
FOR mtnpm@ mtncn.com USE ONLY
loginid=mtnpm@mtncn.com,time=2013-12-05 18:08:21,ip=113.116.12.239,doctitle=MT7621_Datasheet_v0_3.docx,company=MTN Electronics Co. Ltd深圳市邁騰電子有限公司_RLT
MT7621_Data_Sheet_v0.2
Page 5 of 44
MT7621
Network Processor
1. Main Features
The following table covers the main features offered by the MT7621. Overall, the MT7621 supports the
requirements of an high-level AP/router, and a number of interfaces together with a large maximum RAM
capacity.
Features
MT7621
CPU
MIPS1004Kc (880 MHz, Durl Core)
I-Cache, D-Cache
32 KB, 32 KB
L2 Cache
256KB
HNAT/HQoS
HQoS 16 queues
HNAT 2 Gbps forwarding
(IPv4, IPv6 routing, DS-Lite, 6RD, 6to4)
Memory
DRAM Controller
16 b
DDR2
256 MB, 800 Mbps
DDR3
512 MB, 1200 Mbps
NAND
Small page 512-Byte (max 512 Mbit)
Large page 2k-Byte (max 8 Gbit)
SPI Flash
3B addr mode (max 128 Mbit)
4B addr mode (max 512 Mbit)
SD
SD-XC (class 10)
PCIe
3
USB
USB3 x 1+ USB2 x 1 or USB2 x 2
Ethernet
5p GSW + RGMII(1)
I2S
1
PCM
1
I2C
1
SPDIF-Tx
1
UART Lite
3
JTAG
1
Package
TFBGA 11.7 mm x 13.6 mm
Table 1-1 Main Features
1.1 Switch core
1.1.1 Overview
MT7621 switch is a highly integrated Ethernet switch with high performance and non-blocking transmission. It
includes a 5-port Gigabit Ethernet MAC and a 5-port Gigabit Ethernet PHY for Dumb and Smart Switch
applications. MT7621 enables an advanced power-saving feature to meet the market requirement. It complies
with IEEE803.3az for Energy Efficient Ethernet and cable-length/link-down power saving mode. MediaTek's
industry-leading techniques provide customers with the most cost-competitive and lowest power consumption
Ethernet product in the industry.
MEDIATEK CONFIDENTIAL
FOR mtnpm@ mtncn.com USE ONLY
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