1、BRITISH STANDARDBS IEC 60748-2-20:2008Semiconductor devices Integrated circuits Part 2-20: Digital integrated circuits Family specification Low voltage integrated circuitsICS 31.200g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g3
2、6g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS IEC 60748-2-20:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2008 BSI 2008ISBN 978 0 580 57380 4National forewordThis British Standard is t
3、he UK implementation of IEC 60748-2-20:2008. It supersedes BS IEC 60748-2-20:2000 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee EPL/47, Semiconductors.A list of organizations represented on this committee can be obtained on request to its secretary.
4、This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsIEC 60748-2-20Edition
5、 2.0 2008-02INTERNATIONAL STANDARD Semiconductor devices Integrated circuits Part 2-20: Digital integrated circuits Family specification Low voltage integrated circuits BS EN ISO 60748-2-20:2008CONTENTS INTRODUCTION.4 1 Scope.5 2 Normative references .5 3 Terms and definitions .5 4 Interface specifi
6、cations for low supply voltage below 3,3 V.6 4.1 Specifications for 3,3 V nominal power supply voltage.6 4.1.1 General .6 4.1.2 Absolute maximum continuous ratings.6 4.1.3 Normal range of operating supply voltage6 4.1.4 Wide range of operating supply voltage .7 4.2 Specifications for 2,5 V nominal p
7、ower supply voltage.8 4.2.1 General .8 4.2.2 Absolute maximum continuous ratings.8 4.2.3 Normal range of operating supply voltage8 4.2.4 Wide range of operating supply voltage .9 4.3 Specifications for 1,8 V nominal power supply voltage.10 4.3.1 General .10 4.3.2 Absolute maximum continuous ratings.
8、10 4.3.3 Normal range of operating supply voltage10 4.3.4 Wide range of operating supply voltage .11 4.4 Specifications for 1,5 V nominal power supply voltage.11 4.4.1 General .11 4.4.2 Absolute maximum continuous ratings.11 4.4.3 Normal range of operating supply voltage12 4.4.4 Wide range of operat
9、ing supply voltage .12 4.5 Specifications for 1,2 V nominal power supply voltage.13 4.5.1 General .13 4.5.2 Absolute maximum continuous ratings.13 4.5.3 Normal range of operating supply voltage14 4.5.4 Wide range of operating supply voltage .14 4.6 Specifications for 1,0 V nominal power supply volta
10、ge.15 4.6.1 General .15 4.6.2 Absolute maximum continuous ratings.15 4.6.3 Normal range of operating supply voltage16 4.6.4 Wide range of operating supply voltage .17 Annex A (informative) Threshold voltage test conditions of Schmitt trigger operation18 Bibliography19 Figure A.1 DC characteristic me
11、asurement circuit of Schmitt-trigger input18 BS EN ISO 60748-2-20:2008 2 Table 1 Absolute maximum continuous ratings for nominal 3,3 V .6 Table 2 Operating conditions for 3,3 V normal range6 Table 3 Output characteristics for 3,3 V normal range7 Table 4 Operating conditions for 3,3 V wide range .7 T
12、able 5 Output characteristics for 3,3 V wide range .7 Table 6 Absolute maximum continuous ratings for nominal 2,5 V .8 Table 7 Operating conditions for 2,5 V normal range8 Table 8 Output characteristics for 2,5 V normal range9 Table 9 Operating conditions for 2,5 V wide range .9 Table 10 Output char
13、acteristics for 2,5 V wide range .9 Table 11 Absolute maximum continuous ratings for nominal 1,8 V .10 Table 12 Operating conditions for 1,8 V normal range10 Table 13 Output characteristics for 1,8 V normal range11 Table 14 Operating conditions for 1,8 V wide range .11 Table 15 Output characteristic
14、s for 1,8 V wide range .11 Table 16 Absolute maximum continuous ratings for nominal 1,5 V .12 Table 17 Operating conditions for 1,5 V normal range12 Table 18 Output characteristics for 1,5 V normal range12 Table 19 Operating conditions for 1,5 V wide range .13 Table 20 Output characteristics for 1,5
15、 V wide range .13 Table 21 Absolute maximum continuous ratings for nominal 1,2 V .13 Table 22 Operating conditions for 1,2 V normal range14 Table 23 Output characteristics for 1,2 V normal range14 Table 24 Operating conditions for 1,2 V wide range .15 Table 25 Output characteristics for 1,2 V wide r
16、ange .15 Table 26 Absolute maximum continuous ratings for nominal 1,0 V .16 Table 27 Operating conditions for 1,0 V normal range16 Table 28 Output characteristics for 1,0 V normal range16 Table 29 Operating conditions for 1,0 V wide range .17 Table 30 Output characteristics for 1,0 V wide range .17
17、BS EN ISO 60748-2-20:2008 3 INTRODUCTION The dimensions of integrated circuit devices are continuing to be reduced, both vertically and horizontally, to obtain better performance and higher density. However, if the supply voltages and interface levels are not reduced, the electric fields within the
18、die (chip) will increase, which leads to reduced reliability. These increased fields will also, together with the higher system-clock rate, lead to increased electromagnetic interference and noise induced on the supply leads and the ground plane, which leads to lower noise immunity and a higher prob
19、ability of malfunction. To continue this trend of scaling down the size of semiconductor devices, lower power supply voltages are essential. For systems operating at lower supply voltage, the tolerances on the supply voltage and the input and output voltages must be specified more closely. Also, sin
20、ce the market for battery-operated equipment is expected to grow considerably, it is important to include specifications that cover this field. By setting standard values at this stage, manufacturing costs can be reduced and users can design systems more economically. After the publication of first
21、edition of this standard, scaling of digital ICs has still been drastically proceeding, and nowadays, state-of-the art digital ICs are operated at 1,2 V, and Schmitt trigger interface is widely used. In light of the situation, this second edition expands the specification of nominal power supply vol
22、tage down to 1,0 V and includes specifications of Schmitt trigger interface. BS EN ISO 60748-2-20:2008 4 SEMICONDUCTOR DEVICES INTEGRATED CIRCUITS Part 2-20: Digital integrated circuits Family specification Low voltage integrated circuits 1 Scope This standard aims at giving DC interface specificati
23、ons for various sets of values, where each comprises the nominal value of power supply voltage, its tolerance, and the worst-case limit values of the input and output voltages for low voltage integrated circuits. It also provides two categories of interface specification for each nominal supply volt
24、age normal range and wide range. The normal range is based on the nominal industry standard with typical tolerance of about 10 %. The wide range covers battery operation that extends the lower limit to a practical value at which the battery will continue to operate. 2 Normative references The follow
25、ing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60748-2:1997, Semiconductor devices Integrated circuits
26、 Part 2: Digital integrated circuits 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 absolute maximum continuous ratings conditions from which damage to the circuit may occur, if the circuit is exposed to such conditions 3.2 operating conditi
27、ons conditions under which the circuit functions normally with appropriate degree of reliability 3.3 output characteristics requirements for the circuit to fulfil under the operating condition BS EN ISO 60748-2-20:2008 5 4 Interface specifications for low supply voltage below 3,3 V 4.1 Specification
28、s for 3,3 V nominal power supply voltage 4.1.1 General These specifications apply to LVTTL- and LVCMOS-compatible circuits over the full operating temperature range specified by manufacturer to be commercial, industrial, and/or military grade. 4.1.2 Absolute maximum continuous ratings Table 1 specif
29、ies absolute maximum continuous ratings of the circuits. Table 1 Absolute maximum continuous ratings for nominal 3,3 V Parameters Symbol Min. Max. Unit Power supply voltage VDD-0,5 4,6 VDC input voltage VIN-0,5 VDD+ 0,5 (4,6 V max) V DC output voltage VOUT-0,5 VDD+ 0,5 (4,6 V max) V Storage temperat
30、ure range aTSTG C aStorage temperature range shall be specified by manufacturer for various purposes. 4.1.3 Normal range of operating supply voltage Table 2 and Table 3 specify operating conditions and output characteristics for normal range power supply, respectively. Table 2 Operating conditions f
31、or 3,3 V normal range Parameters Symbol Min. Max. Unit Power supply voltage VDD3,0 3,6 VHigh-level input voltage VIH2,0 VDD+ 0,3 V Normal input Low-level input voltage VIL-0,3 0,8 V Positive going threshold voltage VITP0,9 2,1 V Negative going threshold voltage VITN0,7 1,9 V Schmitt trigger input Hy
32、steresis voltage Vhys0,2 1,4 V Operating temperature range aTa CaOperating temperature range shall be specified by manufacturer for various purposes. BS EN ISO 60748-2-20:2008 6 Table 3 Output characteristics for 3,3 V normal range LVTTL LVCMOS Characteristics Symbol Condition Min. Max. Min. Max. Un
33、it IOH= -2 mA 2,4 V High-level output voltage VOHIOH= -100 A VDD 0,2 V IOL= 2 mA 0,4 V Low-level output voltage VOLIOL= 100 A 0,2 V 4.1.4 Wide range of operating supply voltage Table 4 and Table 5 specify operating conditions and output characteristics for wide range power supply, respectively. Tabl
34、e 4 Operating conditions for 3,3 V wide range Parameters Symbol Min. Max. Unit Power supply voltage VDD2,7 3,6 VHigh-level input voltage VIH2,0 VDD+ 0,3 V Normal input Low-level input voltage VIL-0,3 0,8 V Positive going threshold voltage VITP0,9 2,1 V Negative going threshold voltage VITN0,7 1,9 V
35、Schmitt trigger input Hysteresis voltage Vhys0,2 1,4 V Operating temperature range aTa CaOperating temperature range shall be specified by manufacturer for various purposes. Table 5 Output characteristics for 3,3 V wide range LVCMOS Characteristics Symbol Condition Min. Max. Unit High-level output v
36、oltage VOHIOH= -100 A VDD 0,2 V Low-level output voltage VOLIOL= 100 A 0,2 V BS EN ISO 60748-2-20:2008 7 4.2 Specifications for 2,5 V nominal power supply voltage 4.2.1 General These specifications apply to CMOS-compatible circuits over the full operating temperature range specified by manufacturer
37、to be commercial, industrial, and/or military grade. 4.2.2 Absolute maximum continuous ratings Table 6 specifies absolute maximum continuous ratings of the circuits. Table 6 Absolute maximum continuous ratings for nominal 2,5 V Parameters Symbol Min. Max. Unit Power supply voltage VDD-0,5 3,6 V DC i
38、nput voltage VIN-0,5 VDD+ 0,5 (3,6 V max) V DC output voltage VOUT-0,5 VDD+ 0,5 (3,6 V max) V Storage temperature range aTSTG C aStorage temperature range shall be specified by manufacturer for various purposes. 4.2.3 Normal range of operating supply voltage Table 7 and Table 8 specify operating con
39、ditions and output characteristics for normal range power supply, respectively. Table 7 Operating conditions for 2,5 V normal range Parameters Symbol Min. Max. Unit Power supply voltage VDD2,3 2,7 VHigh-level input voltage VIH1,7 VDD+ 0,3 V Normal input Low-level input voltage VIL-0,3 0,7 V Positive
40、 going threshold voltage VITP0,9 1,7 V Negative going threshold voltage VITN0,7 1,5 V Schmitt trigger input Hysteresis voltage Vhys0,2 1,0 V Operating temperature range aTa CaOperating temperature range shall be specified by manufacturer for various purposes. BS EN ISO 60748-2-20:2008 8 Table 8 Outp
41、ut characteristics for 2,5 V normal range Characteristics Symbol Condition Min. Max. Unit IOH= -100 A 2,1 V IOH= -1 mA 2,0 V High-level output voltage VOHIOH= -2 mA 1,7 V IOL= 100 A 0,2 V IOL= 1 mA 0,4 V Low-level output voltage VOLIOL= 2 mA 0,7 V 4.2.4 Wide range of operating supply voltage Table 9
42、 and Table 10 specify operating conditions and output characteristics for wide range power supply, respectively. Table 9 Operating conditions for 2,5 V wide range Parameters Symbol Min. Max. Unit Power supply voltage VDD1,8 2,7 VHigh-level input voltage VIH0,7 x VDDVDD+ 0,3 V Normal input Low-level
43、input voltage VIL-0,3 0,2 x VDDV Positive going threshold voltage VITP0,25 x VDD0,75 x VDDV Negative going threshold voltage VITN0,15 x VDD0,65 x VDDV Schmitt trigger input Hysteresis voltage Vhys0,1 x VDD0,6 x VDDV Operating temperature range aTa C aOperating temperature range shall be specified by
44、 manufacturer for various purposes. Table 10 Output characteristics for 2,5 V wide range Characteristics Symbol Condition Min. Max. Unit High-level output voltage VOHIOH= -100 A VDD 0,2 V Low-level output voltage VOLIOL= 100 A 0,2 V BS EN ISO 60748-2-20:2008 9 4.3 Specifications for 1,8 V nominal po
45、wer supply voltage 4.3.1 General These specifications apply to CMOS-compatible circuits over the full operating temperature range specified by manufacturer to be commercial, industrial, and/or military grade. 4.3.2 Absolute maximum continuous ratings Table 11 specifies absolute maximum continuous ra
46、tings of the circuits. Table 11 Absolute maximum continuous ratings for nominal 1,8 V Parameters Symbol Min. Max. Unit Power supply voltage VDD-0,5 2,5 V DC input voltage VIN-0,5 VDD+ 0,5 (2,5 V max) V DC output voltage VOUT-0,5 VDD+ 0,5 (2,5 V max) V Storage temperature range aTSTG C aStorage tempe
47、rature range shall be specified by manufacturer for various purposes. 4.3.3 Normal range of operating supply voltage Table 12 and Table 13 specify operating conditions and output characteristics for normal range power supply, respectively. Table 12 Operating conditions for 1,8 V normal range Paramet
48、ers Symbol Min. Max. Unit Power supply voltage VDD1,65 1,95 V High-level input voltage VIH0,65 x VDDVDD+ 0,3 V Normal input Low-level input voltage VIL-0,3 0,35 x VDDV Positive going threshold voltage VITP0,4 x VDD0,7 x VDDV Negative going threshold voltage VITN0,3 x VDD0,6 x VDDV Schmitt trigger in
49、put Hysteresis voltage Vhys0,1 x VDD0,4 x VDDV Operating temperature range aTa C aOperating temperature range shall be specified by manufacturer for various purposes. BS EN ISO 60748-2-20:2008 10 Table 13 Output characteristics for 1,8 V normal range Characteristics Symbol Condition Min. Max. Unit High-level output voltage VOHIOH= -2 mA VDD 0,45 V Low-level output voltage
