MT7688 datasheet mt7688硬件规格书
MT7688 MEDIATE《 Chip Name Confidential B Table of contents 1. MAIN FEATURES 2. PINS 2.1 MT7688AN DR-QFN(12 MM X 12 MM)156-PIN PACKAGE DIAGRAM 2.1.1 UP-LEFT SIDE 2.1.2 DOWN-LEFT SIDE 7789 2.1 3 DOWN-RIGHT SIDE 2.1.4UP-RIGHT SIDE 10 2.1.5 PIN DESCRIPTION 11 2.2 MT7688KN DR-QFN (10 MMX 10 MM)120-PIN PACKAGE DIAGRAM 17 2.2.1 LEFT S|DEⅥE 17 2.2.2 RIGHT SIDE VIEW 19 2.2.3 PIN DESCRIPTION 20 2. 3 PIN SHARING SCHEMES 23 2.3 1 GPIO PIN SHARE SCHEME 23 2.3.2 UARTI PIN SHARE SCHEME 25 2.3.3MT7688AN EPHY LED PIN SHARE SCHEME 25 2,3. 4 MT7688AN WLAN LED PIN SHARE SCHEME 25 2.35MT7688KN EPHY LED PIN SHARE SCHEME 25 2.3.6 MT7688KN WLAN LED PIN SHARE SCHEME 26 2.3.7 PERST NPIN SHARE SCHEME 26 23. 8 WDT RST NPIN SHARE SCHEME 2.3.9 REF CLKO PIN SHARE SCHEME 26 2.3.10 UARTO PIN SHARE SCHEME 27 2.3.11 GPIOO PIN SHARE SCHEME 27 2.3.12 SPI PIN SHARE SCHEME 27 2.3.13 SP CS1 PIN SHARE SCHEME 27 2.3.142C PIN SHARE SCHEME 27 2.3.15 12S PIN SHARE SCHEME 27 2.3.16 SD PIN SHARE SCHEME 28 2.31/EMMC PIN SHARE SCHEME 28 2.3. 18 UART2 PIN SHARE SCHEME 28 2.3.19 PWM CH1 PIN SHARE SCHEME 29 2.3.20 PWM CHO PIN SHARE SCHEME 29 2.3.21 SPIS PIN SHARE SCHEME 29 2.3.22 PIN SHARE FUNCTION DESCRIPTION 29 2.4 BOOTSTRAPPING PINS DESCRIPTION 30 3. MAXIMUM RATINGS AND OPERATING CONDITIONS 31 3.1 ABSOLUTE MAXIMUM RATINGS 31 3.2 MAXIMUM TEMPERATURES 31 3.3 OPERATING CONDITIONS 31 3.4 THERMAL CHARACTERISTICS 3. 5 STORAGE CONDITIONS 32 3.6 EXTERNAL XTAL SPECFICATION 32 3.7 DC ELECTRICAL CHARACTERISTICS 32 Mediatek c 2014 MediaTek Inc Page 3 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B 3. 8 AC ELECTRICAL CHARACTERISTICS 33 3.8.1 DDR2 SDRAM INTERFACE 34 3.8.2 SPL INTERFACE 36 3.8.3-S INTERFACE 37 3.8, 4 PCM INTERFACE 3.8.5 POWER ON SEQUENCE 39 3.9 PACKAGE PHYSICAL DIMENSIONS 40 3.9. 1 DR-QFN(10 MM X 10 MM)128 PINS 40 3.9.2 DR-QFN (12 MMX 12 MM)156 PINS 42 3.9.3 MT7688 AN/KN MARKING 3. 9. 4 REFLOW PROFILE GUIDELINE 46 4, ABBREVIATIONS 5. REVISION HISTORY 50 Table of Figures FIGURE 2-1 MT7688AN DR-QFN PIN DIAGRAM (UP-LEFT VIEW) FIGURE 2-2 MT7688AN DR-QFN PIN DIAGRAM(DOWN-LEFT VIEW) FIGURE 2-3 MT7688AN DR-QFN PIN DIAGRAM(DOWN-RIGHT VIEW) FIGURE 24 MT7688AN DR-QFN PIN DIAGRAM (UP-RIGHT VIEW) 10 FIGURE 2-5 MT7688KN DR-QFN PIN DIAGRAM(LEFT VIEW) 18 FIGURE 2-6 MT7688KN DR-QFN PIN DIAGRAM(RIGHT SIDE VIEW) 19 FIGURE 3-1 DDR2 SDRAM COMMAND 34 FIGURE 3-2 DDR2 SDRAM WRITE DATA 翻面·面面面面面面面面面面E面垂 面面垂 34 GURE 3-3 DDR2 SDRAM READ DATA ,34 FIGURE 3-4 SPLINTERFACE 36 FIGURE-3-5 2S INTERFACE 37 FIGURE 3-6 PCM INTERFACE 38 FIGURE 3-7 POWER ON SEQUENCE 39 Figure 3-8 TOP VIEW FiGure 3-9 SIDE VIEV 40 FIGURE 3-10 B EXPANDED FIGURE 3-11 BOTTON VIEW 41 FIGURE 3-12 TOP VIEW 42 FIGURE 3-13 SIDE VIEW 42 FIGURE3-14“B″ EXPANDED 42 FIGURE3-15 BOTTOMⅥ|EW...……… …243 FIGURE 3-16MT7688AN TOP MARKING FIGURE 3-17MT7688KN TOP MARKING 45 FiGuRe 3-18 REFLOW PROFILE FOR MT7688 46 List of tables TABLE 1-1 MAIN FEATURES TABLE 3-1 ABSOLUTE MAXIMUM RATINGS 31 TABLE 3-2 MAXIMUM TEMPERATURES 31 TABLE 3-3 OPERATING CONDITIONS MediaTek C2014 Media Tek Inc Page 4 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B TABLE 3-4 THERMAL CHARACTERISTICS 32 TABLE 3-5 EXTERNAL XTAL SPECIFICATIONS ..· 32 TABLE 3-6 DC ELECTRICAL CHARACTERISTICS 32 TABLE 3-7 25V ELECTRICAL CHARACTERISTICS .33 TablE 3-8VDD 18V ELECTRICAL CHARACTERISTICS 33 TABLE 3-9VDD3, 3V ELECTRICAL CHARACTERISTICS 33 TABLE 3-10 DDR2 SDRAM INTERFACE DIAGRAM KEY 35 TABlE3-11 SPL INTERFACE D| AGRAM KEY,,…………… 36 Table 3-12 12S INTERFACE DIAGRAM KEY 37 TABLE 3-13 PCM INTERFACE DIAGRAM KEY 38 TABLE 3-14 POWER ON SEQUENCE DIAGRAM KEY. MediaTek c 2014 MediaTek Inc Page 5 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B 1。 Main Features The following table covers the main features offered by the mt7688KN and MT7688AN. Overall, the MT7688KN supports the requirements of an entry-level AP/router, while the more advanced MT7688AN supports a number of interfaces together with a large maximum rAm capacity Features MT7688KI MT7688AN MIPS24KEC(580 MHz) MIPS24KEC (580 MHz) Total dmips 580 x1.6 DMIPs 580x1.6 DMIPs I-Cache D-Cache 64 KB. 32 KB 4KB, 32 KB L2 Cache n/a Memory DRAM Device width support 16 bits 16 bits DDR1 64 Mb(MCM), 193 MHz 2 Gb. 193 MHz DDR2 2Gb, 193 MHz SPL Flash 3B addr mode(max 128Mbit 3B addr mode max 128Mbit 4B addr mode(max 512Mbit 4B addr mode(max 512Mbit) SD SD-XC(class 10 RF 1T1R802.11n2.4GHz 1T1R802.11n24GHz PCle USB 2.0 1 Switch 5p FE SW 5p FE SW 12S 1 PCM 120 UART 2(Lite) 2(Lite) JTAG Package DR-QFN120-10 mm x10 mm DR-QFN156-12 mm x 12 mm Table 1-1 Main features MediaTek c 2014 MediaTek Inc Page 6 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B 2 Pins 2.1 MT7688AN DR-QFN(12 mm x 12 mm)156-Pin Package Diagram 2.1.1 Up-left side O兰u DR-QFN 12X12 156 pin 全x18 155 152 148 146 144 142 138 136 134 153 151 149 147 143 141 139 137 135 DIG AVSS33 RF 1 AVSS33 RF 2 WFO RFION 1 WFO RFION 2 WFO RFIOP 1 /0 6 RF AVDD33 WFO TX AVSS33 rF 4 11 13 DD33 WF1 TX AVDD33 WF1 TRX 15 125 SDI 16 12S SDO 12S Ws 12S CLK 9 Figure 2-1 MT7688AN DR-QFN Pin Diagram(up-left view) MediaTek c 2014 MediaTek Inc Page 7 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B 2.1.2 Down -eft side 12C SCLK 12C SD DIG SOC CO V12D 1 SOC IO V33D 1 23 SPI CS1 SPI CLK SPI MISO SPI MOSI GPIOO UART TXDO UART RXDO AVDD33 TX PO 32 MDI RP PO MDI RN PO MD P PO AVDD33 CON 8 EPHY VRT EPHY 42 4 af 2a 4 aaaaa 2 4 a aaa s a m Figure 2-2 MT7688AN DR-QFN Pin Diagram(down-left view) MediaTek c 2014 MediaTek Inc Page 8 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B 2.1.3 Down-right side DDR O 1V8D 2 DDR IO 1V8D 2 97MA3 A12 Ao 95MA7 MA5 MA10 MWE 91 SOC CO V12D 4 SaC_Co_v12D_4 DDR O VREF 1 DDR O VreF 1 89 SocCo_ V12D_3 A13 7|MA2 MA6 85 MAll MA8 A9 83MA13 MA8 79 DDR_IO_1V8D_1 DDR O 1V8D 1 DDR 66 68 g望 Figure 2-3 MT7688AN DR-QFN Pin Diagram(down-right view) Note: DR-QFN support DDR1 and DDR2 pin shuffle depend on the bootstrap MediaTek c 2014 MediaTek Inc Page 9 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited MT7688 MEDIATE《 Chip Name Confidential B 2.1. 4 Up-right side uO.Nao cQxc ∽mm [ DDR21 [DDR1] 132 130 28 126 124 122 120 118 131 129 127 125 123 121 119 PCIE PMU 117 AVDD33_SMPS DDR_IO_1V8D_3 DDR IO 1V8D 3 115 DDR IO VSS 2 DDR IO VSS 4 114 MD14 MDO 113 MDQSO MDQso 112 111MD12 110 MD11 MD3 109MD6 108 MDQMO MD5 107MD1 106 MD4 MD7 105MD3 DDR_IO_VREF_2 DDR IO VREF 2 103 MCKE MWE MA2 101 MBA2 MA1 DDR 100 MBAO MBA1 MA10 Figure 2-4 MT7688AN DR-QFN Pin Diagram(up-right view) MediaTek c 2014 MediaTek Inc Page 10 of 51 Confidential This document contains information that is proprietary to MediaTek Inc Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited