集成组合逻辑电路功能介绍

集成组合逻辑电路功能介绍译码器类别品种代号双2线–4线译码器/多路分配器139155156239双2线–4线译码器3线–8线译码器/多路分配器

(地址锁存)3线–8线译码器/多路分配器4线–16线译码器/多路分配器4线–10线译码器显示译码器（OC）BCD–十进制译码器/驱动器BCD–七段译码器/驱动器注：对有下划线的型号，提供了真值表，其它型号可参照。539455545561455514556131137

23753813823815415945141451414515424344402845141145451145431451114513464748492462472482495475485373474474055145431454414547VCC2S2A02A12Y02Y12Y22Y3

1S

1A0

1A11Y01Y11Y21Y3GND12345678161514131211109

1391110

11011011011111110000010100111

½139译码器真值表双2线–4线译码器

1S

1A0

1A11Y01Y11Y21Y3GNDVCC2S

2A0

2A12Y02Y12Y22Y312345678161514131211109

239VCC2C

2SA02Y32Y22Y12Y0

1S

1CA1

1Y31Y21Y11Y0GND12345678161514131211109

155156双2线–4线译码器156集电极开路输出双2线–4线译码器VCC1Y31A11A01S2S2OE2AL2Y0

2Y11Y21Y11Y01AL1OE

2A0

2A12Y3

2Y2GND539

1234567891020191817161514131211双2线–4线译码器

1S1A0

1A1

1Y01Y11Y21Y3VSSVDD2S2A02A12Y02Y12Y22Y312345678161514131211109

455514555

1S1A0

1A1

1Y01Y11Y21Y3VSSVDD2S2A02A12Y02Y12Y22Y312345678161514131211109

455614556VCC

Y0

Y1

Y2

Y3Y4Y5Y6A0A1A2CPS2S1Y7GND12345678161514131211109131VCC

Y0

Y1

Y2

Y3Y4Y5Y6A0A1A2

S3

S2

S1

Y7GND12345678161514131211109137A0A1A2

S3

S2

S1

Y7GNDVCC

Y0

Y1

Y2

Y3Y4Y5Y6123456781615141312111092373线–8线译码器VCCQ3Q4A2LEE1E2E3Q0

Q7

Q2

Q1ACKWRRDA0A1

Q5Q6GND547

123456789102019181716151413121111010

10111110110001100应答真值表0111直通寻址单元输出00110存储所有输出为1

存储所有输出为10存储所有输出为10存储所有输出为1锁存和输出状态表输入锁存状态译码器输出3线–8线译码器（输入锁存，有应答功能）VCC

Y0

Y1

Y2

Y3Y4Y5Y6A0A1A2

S3

S2

S1

Y7GND1234567816151413121110913811111110

11111101111110111111011111101111110111111011111101111111111111111111111110000100011001010011101001010110110101110

1138真值表VCC

Y0

Y1

Y2

Y3Y4Y5Y6A0A1A2

S3

S2

S1

Y7GND123456781615141312111092383线–8线译码器/多路分配器VCCY3Y4CG4G3G2G1AL

Y7

Y2

Y1Y0OE1OE2ABY5Y6GND538（3S）

12345678910201918171615141312113线–8线译码器/多路分配器所有输出为高阻态所有输出电平同AL有效输出为高电平有效输出为低电平3线–8线译码器/多路分配器（有应答功能）11110

10

10011111001100001100应答真值表VCCY3Y4A2E1E2E3E4Y0Y7

Y2

Y1ACKWRRDA0A1

Y5Y6GND548

1234567891020191817161514131211

154

123456789101112242322212019181716151413

Y0

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y8

Y9

Y10GNDVCC

A

BC

D

G2

G1

Y15

Y14Y13Y12Y114线–16线译码器/多路分配器4线–16线译码器/多路分配器（OC输出）

159

123456789101112242322212019181716151413

Y0

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y8

Y9

Y10GNDVCC

A

BC

D

G2

G1

Y15

Y14Y13Y12Y114线–16线译码器/多路分配器451414514

123456789101112242322212019181716151413STA1A2Y7Y6Y5Y4Y3Y1Y2Y0VSSVCC

INHA4

A3Y10Y11Y8Y9

Y14Y15Y12/p>

123456789101112242322212019181716151413STA1A2Y7Y6Y5Y4Y3Y1Y2Y0VSSVCC

INHA4

A3Y10Y11Y8Y9

Y14Y15Y12Y13INH=1时，所有输出为0INH=1时，所有输出为1VCCA0A1A2A3Y9Y8Y7Y0Y1

Y2

Y3

Y4

Y5Y6GND1234567816151413121110942434442BCD—十进制43余三码—十进制44格雷码—十进制

Y4Y2Y0Y7Y9

Y5Y6VSSVDDY3Y1A1A2A3A0Y81234567816151413121110940284线–10线译码器4线–10线译码器/多路分配器VCCY3Y4A2G4G3G2G1AL

Y7

Y2

Y1Y0ALOEABY5Y6GND537（3S）

1234567891020191817161514131211所有输出为高阻态所有输出电平同AL有效输出为高电平有效输出为低电平VCCA0A1A2A3Y9Y8Y7Y0Y1

Y2

Y3

Y4

Y5Y6GND1234567816151413121110945(OC)145BCD–十进制译码器/驱动器Y0Y1Y5Y4GNDY6Y7Y3Y8Y9

A0

A3

VCC

A1A2Y212345678161514131211109141(OC)BCD–七段码译码器/驱动器VCCfgabcdeBC

LT

BI/RBO

RBI

DAGND123456781615141312111093474474线–七段码译码器/驱动器VDDYfYgYeYdYcYbYa

fDOA1

A2

A3

A4

fDFVEEVSS123456781615141312111094055VDDYfYgYeYdYcYbYaSTA2

A1

A3

A0MBIVSS1234567816151413121110914543BCD–七段码译码器/驱动器VDDYfYgYeYdYcYbYaRBI1234567816151413121110914544123456789181716151413121110

4055STA2

A1

A3

A0MBIRBOVSS14544VDDYfYgYaYbYcYdYeA1

A2

NCBINC

A3

A0VSS1234567816151413121110914547VCCYfYgYaYbYcYdYeA1A2

LT

BI/RBO

RBI

A3A0GND12345678161514131211109

48248249(OC)VCCYfYgYaYbYcYdA1A2BIA3A0YeGND1234567141312111098

49BCD–七段译码器/驱动器VCCYfYgYaYbYcYdYeA1A2

LT

BI/RBO

RBI

A3A0GND12345678161514131211109

4647246(OC)247(OC)VDDYfYgYaYbYcYdYeA1A2

LT

BI

LE

A3A0VSS12345678161514131211109451114511BCD–七段译码器/驱动器VDDYfYgYaYbYcYdYeRBOA1A2

LT

BI

LE

A3A0RBIVSS123456789181716151413121110451314513VDDYfYgYaYbYcYdYeA1A2

LT

BI

LE

A3A0VSS12345678161514131211109454314543代码转换器及编码器类别品种代号BCD–二进制代码转换器二–BCD代码转换器10线–4线优先编码器8线–3线优先编码器4位可级联优先寄存器8线—8线优先编码器注：对有下划线的型号，提供了真值表，其它型号可参照。18418548448514714834845321453227840147149VCCG

E

D

CBAY8Y1Y2

Y3

Y4

Y5

Y6Y7GND12345678161514131211109184185BCD

二进制代码转换器184BCD二进制185二进制BCD484485

1234567891020191817161514131211

E

DC

B

A

Y1

Y2Y3Y4GNDVCCFGHG2

G1

Y8

Y7Y6Y5BCD

二进制代码转换器484BCD二进制485二进制BCDVCCNC

Y3

I3

I2

I1I9Y0I4

I5

I6

I7

I8Y2

Y1GND1234567816151413121110914714710线–4线优先编码器真值表1111111111

0

0

1

01

1

0111

01111

0

11111

0111111

0

11111110111111110

1111111111111011001111000100110101011110011011110111110线–4线优先编码器VDD

I0

Y3

I3

I2

I1I9Y0I4

I5

I6

I7

I8Y2

Y1VSS1234567816151413121110940147111110011000011101100101010000110010000100004014710线–4线优先编码器真值表0000000000

1

10

100

1000

10000

100000

1000000

1000000010000000010

0000000010线–4线优先编码器（BCD输出）VDDYSYEXI3I2I1I0Y0

I4

I5

I6

I7

STY2

Y1VSS12345678161514131211109

4532145328线–3线优先编码器注：*

348为“Z”,即高组态148

真值表

11111111

0

01

011

0111

01111

0111110111111011111111*1*1*

1*1*1*

000001010011100101110111100000000011100101010101010101VCCYSYEXI3I2I1I0Y0

I4

I5

I6

I7

STY2

Y1GND123456781615141312111091483481234567141312111098STRBD3D4

1Cn1Cn+11SGNDVCC

2A2B2Cn2Cn+1NC2S2784位可级联优先寄存器149

1234567891020191817161514131211

RI0

RI1

RI2

RI3

RI4

RI5

RI6

RI7RQEGNDVCCRO0

RO1RO2

RO3

RO4

RO5

RO6RO7RQP0123456711111111111111111111111011111101111110111111011111101111110111111011111101111111149

真值表01234567

11111111

0

01

011

0111

01111

011111011111101111111RQE1000000000RQP1100000000输入输出8线—8线优先编码器加法器类别品种代号门控全加器

2位二进制全加器

4位二进制全加器

双进位保留全加器

4位BCD码全加器三串行加法器四串行加法器/减法器注：对有下划线的型号，提供了真值表，其它型号可参照。8082832834008183583456014560403240383851234567141312111098

B*BC

CnCn+1

GNDVCCB2B1ACA*A2A180注：1.2.当A*做输入端时，A1、A2须为低电平;

当B*做输入端时,B1、B2须为低电平。3.当A1和A2

或B1和B2做输入端时,

A*或

B*

必须分别开路或用来构成线与逻辑。门控全加器80

门控全加器功能表11

010110101010101001000100

0001010011100101110111

1234567141312111098S1A1B1VCC

C0NCNCA2B2S2GNDC2NCNC822位二进制控全加器822位二进制控全加器功能表00

0010000100110000

0100100010A1

B1

A2

B2当C0=0当C0=1S1

S2

C2S1

S2

C200

1010100110111000

0110010101110100

1110110111111110

001001011001

011011000111

000100110101

011011000100

110110101111

000100110110

1011011111A4S3A3B3VCCS2B2A2B4S4C4C0GNDB1A1S112345678

83161514131211109S2B2A2S1A1B1C0GNDVCCB3A3S3A4B4S4C412345678

283161514131211109

4位二进制全加器A4B3A3B2A2B1A1VSSVDDB4C4S4S3S2S1C012345678

400816151413121110912345671413121110981ANC1B1Cn1Cn+11SGNDVCC

2A2B2Cn2Cn+1NC2S183双进位保留全加器4位BCD码全加器A2B2A3B3A4B4C0VSSVDDA1B1S1S2S3S4C412345678

456014560161514131211109B1B2B3A3CnCn+1S2GNDVCCA2A1A0B0S0S1S312345678

583161514131211109三组串行加法器加法器加法器加法器A1B1A2B2A3B3转换1转换2转换3时钟CP进位复位CRS1S2S3S3I3CPS2I2CRI1VSSVDDA3B3A2B2B1A1S11234567840324038*1615141312111094038的时钟为下降沿触发。385

1234567891020191817161514131211

CP1F

1S1B1A2A2B

2S

2FGNDVCC4F

4S4B4A3A3B

3S

3FCR四串行加法器/减法器清零A+BA–

B

00111功能SCRCP

385真值表比较器类别品种代号4位数值比较器8位恒等比较器可编程8位恒等和4位比较器双8位数值比较器16位恒等比较器

（可编程，反相输入）12位恒等比较器（可编程）注：对有下划线的型号，提供了真值表，其它型号可参照。85

4063

4585

14585518519527682683684685526528520521522688689686687524B3A<BA=BA>BFA>BFA=B

FA<B

GNDVCCA3B2A2A1B1A0B012345678

8540631615141312111094位数值比较器

4位数值比较器真值表=<======>A3B3比较输入<=====>A2B2====>A1B1===>A0B0001001001100100100001010010100100100FA>BFA=BFA<BA>BA=BA<B输出级连输入B2A2FA=BA>BA<BA=BA1VSSVDDA3B2FA>B

FA<BB0A0B112345678458514585161514131211109518519*

1234567891020191817161514131211

G

P0Q0

P1Q1P2Q2P3Q3GNDVCCEQQ7

P7Q6P6Q5P5Q4P41000P＝Q0P≠Q1×EQ

GDATA注：519为集电极开路输出。8位数值比较器

518、519真值表520521522*

1234567891020191817161514131211

G

P0Q0

P1Q1P2Q2P3Q3GNDVCCEQQ7

P7Q6P6Q5P5Q4P40110P＝Q0P≠Q1×EQGDATA注：522为集电极开路输出。8位数值比较器

520、521、522真值表8位数值比较器524

1234567891020191817161514131211

S0I/O0I/O1I/O2I/O3

I/O4

I/O5

I/O6

I/O7GNDVCC

S1

SEC/SI

C/SOEQGTLTMCP保持—在移位寄存器中保存数据读—读寄存器中内容到数据总线移位—在下个时钟上升沿上允许串行移位装入—将总线上数据装入寄存器01010011作用S1S0选择数值比较二进制补码比较01作用M数表示选择状态1010010EQ输出1111100GT1111001LTOA—OH>I/O0—I/O7OA—OH=I/O0—I/O7OA—OH<I/O0—I/O7OA—OH>I/O0—I/O7OA—OH=I/O0—I/O7OA—OH<

I/O0—I/O7数据比较输入10000100001111000000C/SOC/SISE可编程8位恒等和4位比较器527

1234567891020191817161514131211

G

P0P1P2P3P4P5P6P7GNDVCCP=QQ11

P11Q10P10Q9P9Q8P88位数值比较器682(3S)683(OC)684(3S)685(OC)

1234567891020191817161514131211

P>Q

P0Q0

P1Q1P2Q2P3Q3GNDVCCP=QQ7

P7Q6P6Q5P5Q4P4110110P<Q

P=QP>QP=QP>QPQ682、683输入上拉电阻682、684三态输出683、685集电极开路输出

682、683、684、685真值表8位数值比较器VCCG2P=QQ7

P7NCQ6P6Q5P5Q4P4686(3S)687(OC)

123456789101112242322212019181716151413

P>Q

G1P0Q0

P1Q1NCP2Q2P3Q3GND0111011P=Q00P<Q00P>Q00×11P=QP>QPQG1G2

686、687真值表0111P=Q0P<QP>Q

×1P=QPQEN688(3S)689(OC)

1234567891020191817161514131211

EN

P0Q0

P1Q1P2Q2P3Q3GNDVCCP=QQ7

P7Q6P6Q5P5Q4P48位数值相等检测器

688、689真值表可编程16位恒等比较器(反相输入)526

1234567891020191817161514131211

G

P0P1P2P3P4P5P6P7GNDVCCP=QP15

P14P13P12P11P10P9P8可编程12位恒等比较器528

12345678161514131211109

G

P0P1P2P3P4P5GNDVCCP=QP11P10P9P8P7P7数据选择器类别品种代号

16选1数据选择器

8选1数据选择器双4选1数据选择器

双4选1数据选择器15015125115240521532533523531571584051250850851250406716选1数据选择器VCCD8D9D10D11D12D13D14D15ABC150

123456789101112242322212019181716151413

D7

D6D5D4

D3D2D1D0SWDGND1D0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15××××100000000100010000110010000101001100011101000010010101001011011000110101110011110WDBCAS

150真值表VCCD8D9D10D11D12D13D14D15ABC250

123456789101112242322212019181716151413

D7

D6D5D4

D3D2D1D0SWDGND×D0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15××××100000000100010000110010000101001100011101000010010101001011011000110101110011110WDBCAS16选1数据选择器/多路转换器（3S）

250真值表VCCD8D9D10D11D12D13D14D15YS0S1S2S3850851

12345678910111213142827262524232221201918171615

D7

D6D5D4

D3D2D1D0GYGGWCP/SCWGND入选择851850输入选择1或0CP10000000000000000SCDnD0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15××××0000000100100011010001010110011110001001101010111100110111101111S3

S2S1S016选1数据选择器/多路分配器（3S）输出

ZZZZDZZDDD1××010000011001YWGGYGW

850、851真值表16选1模拟开关VDD(I/O)8(I/O)9(I/O)10(I/O)11(I/O)12(I/O)13(I/O)14(I/O)15INHA2A34067

123456789101112242322212019181716151413

O/I

(I/O)7(I/O)6(I/O)5(I/O)4(I/O)3(I/O)2(I/O)1(I/O)0A0A1GND输入无0123456789101112131415××××100000000100010000110010000101001100011101000010010101001011011000110101110011110导通通道A3A2A1A0INH

4067真值表8选1数据选择器D3D2

D1D0

Y

Y

ENGNDVCCD4D5D6D7S0S1S212345678

15125116151413121110901D0D0D1D1D2D2D3D3D4D4D5D5D6D6D7D71×××00000001001000110100010101100