常用电平及接口电平

1、 TOC o 1-5 h z HYPERLINK l bookmark16 o Current Document .常用逻辑电平标准2 HYPERLINK l bookmark19 o Current Document COMS 电平3 HYPERLINK l bookmark23 o Current Document LVCOMS 电平3 HYPERLINK l bookmark27 o Current Document TTL 电平4 HYPERLINK l bookmark31 o Current Document LVTTL 电平4 HYPERLINK l bookmark35 o C

2、urrent Document LVDS 电平5 HYPERLINK l bookmark38 o Current Document PECL(VCC=5V)/LVPECL(VCC=3.3V)电平5 HYPERLINK l bookmark41 o Current Document CML 电平6 HYPERLINK l bookmark44 o Current Document VML 电平6 HYPERLINK l bookmark48 o Current Document HSTL 电平6 HYPERLINK l bookmark52 o Current Document SSTL 电平

3、7 HYPERLINK l bookmark56 o Current Document .常用接口电平标准7 HYPERLINK l bookmark59 o Current Document 1.RS232、RS485、RS4227 HYPERLINK l bookmark62 o Current Document DDR1,DDR2,DDR38 HYPERLINK l bookmark66 o Current Document PCIE2. 0、PCIE3.08 HYPERLINK l bookmark70 o Current Document USB2.0, USB3.010 HYPER

4、LINK l bookmark74 o Current Document SATA2.0, SATA3.010 HYPERLINK l bookmark78 o Current Document GTX高速接口11一.常用逻辑电平标准附图1:i VGMOS(2.7V - 3 6 )0-5 VQCLVTTL(3 V-3 VICMOS4.5V-5.5 VJVOH 2.4 VVOHV|H IVVlHvTm1.5 VVthVlL 08 VVlLVol0.5 Vvol附图2：Table 1. Voltage Parameters by Logic LevelPARAMETERLVPECLCMLVMLLM

5、DSWn IZ4V1.9 V1.65V1.4VVm1.6 V1 - V0 85 V1 VOutput voltage is ingle ended)300的U00 mV000 mV400 mVComnon-niDde voltaae1.5 V1 25 V1.2V附图3：附图4：COMS 电平电平参数条件最大值典型值最小值单位备注电源电压（VCC）5.554.5V输入高压（VIH）3.5V输入低压（VIL）1.5V输出高压（VOH）4.44V输出低压（VOL）0.5V共模电压（VT）2.5V最高速率传输延迟时间（25-50ns）耦合方式LVCOMS 电平LVCOMS电平参数条件最大值典型值最小值

6、单位备注电源电压（VCC）3.63.32.7V输入高压（VIH）0.7VCCV输入低压（VIL）0.2VCCV输出高压（VOH）VCC-0.1V输出低压（VOL）0.1V共模电压（VT）0.5VCCV最高速率耦合方式TTL电平电平参数条件最大值典型值最小值单位备注电源电压（VCC）5.554.5V输入高压（VIH）2V输入低压（VIL）0.8V输出高压（VOH）2.4V输出低压（VOL）0.5V共模电压（VT）1.5V最高速率传输延迟时间（5-10ns），耦合方式LVTTL 电平电平参数条件最大值典型值最小值单位备注电源电压（VCC）3.63.33V输入高压（VIH）2V输入低压（VIL）0.

7、8V输出高压（VOH）2.4V输出低压（VOL）0.4V共模电压（VT）1.5V最高速率耦合方式31 LVDS电平参数符号条件最小典型最大单位LVDS输出高电压1.475VLVDS输出低电压0,925VLVDS输出差分屯压250400mVLVDS在不同状态口寸 输出差分电压波动|V*|25mVLVDS输出电压偏移量1,1251.275VLVDS在不同状态时 输出电压偏移址波动A|VOS|25础LVDS输出差分阻抗30120QLVDS输出电流两差分端相接12mA器分单端到地短路40mALVDS输入单端电压范围V,02.4VLVD8输入差分信号灵敏度Vid|100mVLVDS输入共模电流& = 1

8、2V 时350maLVDS回滞门限宽度70mVLVD8输入差分阻抗Rin85W0115Q最高速率：3.125Gbps耦合方式：41 PECL(VCC=5V)/LVPECL(VCC=33V)电平参数条件最小值最大值单位输出高压rA = oc 至+8 非 c腿-1.025vrc -0,88VJA= -40QCV驱动黑尹棋电压-3V -3V-IV +3V一TV47V-7V + 12VDDR1,DDR2,DDR3DDR1DDR2DDR3电压 VDD/VDDQ2.5V/2.5V1.8V/1.8V (+/-0.1)1.5V/1.5V (+/-0.075)I/O 接口SSTL_25SSTL_18SSTL_1

9、5数据传输率(Mbps)200-40040。80。800 1600容量标准64M-1G256M -4G512M-8GMemory Latencyfns)15 2010 2010 15一备 注ci_m1.5/2/2.5/3刃 4/5/65/6/7/B预取设计(Bit)248逻辑Bank数量2/44/88/16突发长度2/4/84/88封装TSOPFBGAFBGA引脚标准184Pin DIMM240PinDIMM240Pin DIMMDDR4:速率 1.63.2Gbps； I/O 接口 SSTL_12；VDD 1.2V；PCIE2.0、PCIE3.0PCI-E不同规桔/通道带定对比(单向)PCt-

10、E 1.xPCI-E 2.xPCC-E 3.0心2S0MB/SSOOMB/&IGB/s500MB/S1GEA2GB/&x41GEA2GE/s4GE/sx82GB/S4GE/S8 GB/s4GEA16G6/5参考时钟直流规Table 21： REFCLCK DC Specif ications and AC Timing RequiremeiitsSymbol Fajramet triLOG MUe InputUnitMtn BfaRise Edge RateRising Edge Ratens4 0V/h：i2；3Fal Fdge RateFalling Edge RatePRi nv/ris

11、2,3VlHDifferential input High Village+仲mV2Vi-Differential Input Low Voltage-150mV2VcrossAbsolute cfiE-ir以 poinr voltage+w+斥币二mV1,4 RVCRO53IDELTAVariatiori cf Vgross over all rising clock edges+ 14)mV 1/VrbRing-back Voltage Margin-100+ 1DDrnV2,12TstableTine before Vrb is allowedF*：2TfericdavoAverage

12、Stock Period Accuracy300-为00ppn2J0J3TfERICC. ABSAbsolute Peraad (including Jrtter 如(1 Spread Spectrum)9.047 11203ns2 6TccjiftbrCycle io Cycle jitter150ps2Vr/iAxAbMlute Max input voltage1.15V17VmwAb salute Min input voHage-0.3V1Duty Cyi.liiDuty Cycle4060%2Rise-FallMatchingRising edge rate (REFCLK+) t

13、o falling edge rate (REFCLK-) matching20%1.14Zc-ocClock source DC impedance4060Q1r11辅助信号直流规Table R-3： Auxi1iary Signal DC Specifi cations PERST#, WAKfW, and SMBusSymbol PiurueterCondi tioosMinMmUnixNotesV|L1Input Low Voltage 0 5 fl.8V?V|HIInput High Vollaye2.0 VllS 2 + o.rV2MuInput Low Vo Haye0 fl f

14、l.8V4V|H2Input High VolTggs2 1 Vccsuea.a + 0.5V4V*Output Low Voltage-i 0 mA0.PV1.3VhmaxMbv Hi” Voltayev=l3 2 + 0 5V3Oulput Lew Volleys4.0 mAWVL4I inInput LeakageCurrent0 ta 3 3V-10+ 10UAVhkgOutput LaakageCunenl0 to 3 3V5D+河mAC*.Input Pin CapacitancepF2CgOulput (l/G Pin Capac ilpncePF工4USB2.0,USB3.0U

15、SB引脚定义接口型号引脚功能电线颜色USB2.01VBUS红2D-白3D+绿4GND黑 八、MicroUSB2.01VBUS红2D-白3D+绿4IDB型悬空，A型接地5GND黑 八、USB3.01VBUS红2D-白3D+绿4GND黑 八、5StdA_SSRX-蓝6StdA_SSRX+黄7GND_Drain8StdA_SSTX-紫9StdA_SSTX+橙SATA20,SATA30SATA 规最大带宽理论速率SATA 1.01.5 Gbps150 MB/sSATA 2.03.0 Gbps300 MB/sSATA 3.06.0 Gbps600 MB/s6 GTX高速接口Tabfe J4? GTX T

16、ransceiver DC SpecITlcatlonSymbolDC PheEpCariditiwsMinTypMhxLkirts取PflHDrfterenlial pak-lo-peek inpul vailagE血rrel AC Doupled2000nVV|NAtssolule mput gtageDG coupled MGTAVTT-1.2V-400MGTAVTTmVVgminConimon mode input voltageDC coupled MGTAVTT- 1.2Va/aMGTAVTTmVPPOUTl 胞 r 白山甫 I pak-lc-p&ak outpvl wnagaJThQnsmrtl&r cmlfiul swing is 日削 W maximum seitJng1WOmVVcWOUTDCDC ccmmon mode output voNage.Equaition bassdMGTAVTT - DVpp(xrnMmVAnDrtteraniial inpul resi