Introduction
The HLK-7621A module use the MT7621A chipset.
The MT7621A integrates aual-core MIPS-1004Kc(880MHz), HNAT/HQoS/Samba/VPN accelerators, 5-port GbE switch, RGMII, 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, MT7621A 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
1.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
2.Gigabit Switch
5 ports with full-line rate
5-port 10/100/1000Mbps MDI transceivers
3.One RGMII/MII interface
4.16-bit DDR2/3 up to 256/512 Mbytes
5.SPI(2 chip select), NAND Flash(SLC), SDXC,eMMC(4 bits)
6.USB3 x 1+ USB2 x 1 or USB2 x 2 (all host)
7.PCIe host x 3
8.I2C, UART Lite x 3, JTAG, MDC, MDIO, GPIO
9.VoIP support ( I2S, PCM )
10.Audio interface (SPDIF-Tx, I2S, PCM)
11.Deliver the superb Samba performance via USB2.0/USB 3.0/SD-XC
12.HW storage accelerator
13.HW NAT
2Gbps wired speed
L2 bridge
IPv4 routing, NAT, NAPT
IPv6 routing, DS-Lite, 6RD, 6to4
14.HW QoS
16 hardware queues to guarantee the min/max bandwidth of each flow.
Seamlessly co-work with HW NAT engine.
2Gbps wired speed.
15.HW Crypto
16.Deliver 400~500 Mbps IPSec throughput
17.Green
Intelligent Clock Scaling (exclusive)
DDR2/3: ODT off, Self-refresh mode
18.Firmware: Linux 2.6 SDK, OpenWRT
19.RGMII iNIC Driver: Linux 2.4/2.6
Functional block diagram

Dimension

Enviromental
1. Operating
Operating Temperature: 0°C to +60 °C
Relative Humidity: 5-90% (non-condensing)
2. Storage
Temperature: -10°C to +80°C (non-operating)
Relevant Humidity: 5-95% (non-condensing)
3. MTBF caculation
Over 150,000hours
