10171

SignDtiES DUAL 1 OF 4 DEMULTIPLEXER/DECODER 1 H I 11 (SELECTED OUTPUT IS LOW) 1 U 1 # 1

10171F: —30 to +85°C, CER D IP

DIGITAL 10,000 SERIES ECL

D ESCRIPTIO N

The 10171 is a binary coded 2 line to dual 4 line decoder/demultiplexer. Outputs are normally high with the selected outputs going low. There are two parallel 1 line to 4 line non-inverting data paths and a common enable input.

Each data input when high forces its four outputs high. The enable input when high forces all eight outputs high.

FEA TU R ES

• F AST PR O P A G A T IO N D E L A Y - 4.0 ns TYP A D D R E S S TO OUTPUT

= 4.5 ns T YP E N A B L E OFF D A T A TO OUTPUT

• LOW POW ER D IS S IP A T IO N = 310 m W /PACKAGE T Y P (NO LO AD)

The 10171 is a true parallel decoder using internal emitter dotting techniques. Hence it eliminates unequal delay times found in other decoders. The 10171 is a low power, high speed device with high Z input pulldown resistors and open emitter outputs.

LOGIC D IA G R A M

10171

» . N

14 0 — 4 r

d b3

d b2

D B 1

DB„

d a3

A°(LSB) I

7 ° - D l .

"p O —03

d a2 - — 4 \ n , L______

f 0

16 °-E>EZ

d a,n

2

D A 1

D A 0

" I O 6

( I N T E R N A L C O N N E C T I O N S A R E E M I T T E R - D O T O R )

V CC1 = 1. V CC2 = 16' V EE = 8 P O SITIV E LO G IC : HIGH L E V E L = '1'

• H IG H F A N O U T C A P A B IL IT Y - C A N D R IV E E IG H T 50 ft L IN E S

• T R U E P A R A L L E L D E C O D E R - E L IM IN A T E S U N ­ E Q U A L D E L A Y T IM E S

• H IG H IM M U N IT Y F R O M POWER SU P P LY V A R IA ­ TIO N S: V

= -5 .2 V +5% R E C O M M E N D E D

• H IG H Z IN PUT S - IN T E R N A L 50 kft PU LLD O W N S

• OPEN E M IT T E R O U TPU TS

• M E E T S E C L 10,000 S E R IE S S T A N D A R D IN T E R ­ FAC E S P E C IF IC A T IO N S

A PPLICATIO NS

• Dual 1 line to 4 line Demultiplexer

• Crossbar Switch Applications

• High Fanout 1 of 4 Decoder

• Memory Chip Select Decoder

TRUTH TABLE

INPUTS OU TPU TS

E0 A1 A0 DAIN DAO D A I DA2 DA3

L L L L L H H H

L L L H H H H H

L L H L H L H H

L L H H H H H H

L H L L H H L H

L H L H H H H H

L H H L H H H L

L H H H H H H H

H 0 0 0 H H H H

DB is Similar. 0 = Don't Care.

T EM P ER A T U RE R A N G E

• —30 to +85°C Operating Ambient

PACKAGE TYPE

• F: 16-Pin C E R D IP

5-83

D IG IT A L 1,000/10,000 SE R IE S ECL ■ 10181

ELEC T R IC A L C H A R A C T E R IST IC S

(at Listed Voltages and Ambient Temperatures).

T EST V O L T A G E V A L U E S

(V c c ) Gnd (Voits)

V|H max V lL min V|HA min Vi l a max v e e -0 .8 9 0 - 1 . 8 9 0 -1 . 2 0 5 -1 . 5 0 0 -5 . 2 -0 .8 1 0 - 1 . 8 5 0 -1 .1 0 5 -1 .4 7 5 -5 .2 -0 .7 0 0 - 1 . 8 2 5 -1 .0 3 5 -1 . 4 4 0 -5 . 2

Characteristic Symbol

Pin Under

Test

10171 Test Limits T EST V O L T A G E A P P L IE D TO PIN S L IS T E D BELO W:

-30° C +25° C +85° C

Min Max Min Typ Max Min Max Unit V lH max V lL m in V|HA min V IL A max V E E

Power Supply Drain Current 'E 8 - - - 60 75 - - mAdc 2,7,9,14,15 - - - 8 1,16

Input Current linH 14 - - - - 265 - - MAdc 14 - - 8 1,16

linL 14 - - 0.5 - - - - MAdc - 14 - - 8 1,16

Logic " 1 " v OH 13 -1 . 0 6 0 - 0 . 8 9 0 -0 .9 6 0 _ -0 .8 1 0 -0 .8 9 0 -0 .7 0 0 Vdc 14 - - - 8 1,16

Output Voltage 13 -1 .0 6 0 -0 .8 9 0 -0 .9 6 0 - -0 .8 1 0 -0 .8 9 0 -0 .7 0 0 Vdc 15 - - - 8 1,16

Logic ”0 " Output Voltage v O L 13 -1 . 8 9 0 - 1 . 6 7 5 -1 .8 5 0 - -1 .6 5 0 -1 . 8 2 5 -1.61 5 Vdc - - - 8 1,16

Logic " 1 " v O H A 13 -1 .0 8 0 - -0 .9 8 0 - - -0 .9 1 0 - Vdc - - 14 - 8 1,16

Threshold Voltage 13 -1 . 0 8 0 • - -0 .9 8 0 _ - -0 .9 1 0 - Vdc - - 15 - 8 1,16

Logic " 0 “ Threshold Voltage v O LA 13 - -1 .6 5 5 - - -1 . 6 3 0 - -1 . 5 9 5 Vdc - - - 14 8 1,16

Switching Times * Pulse In Pulse Out -3 .2 V +2.0 V

(50-dhm load)

Propagation Delay '9 + 13+ 13 - - - 4.0 - - - ns - - 9 13 8 1,16

* 9 - 1 3 - 13 - - - 4.0 - - - 1 - - I I I I

Rise Tim e{20% to 80%) *13+ 13 - - - 2.0 - - - - -

Fall Time <20% to 80%) M 3 - 13 - - - 2.0 - - - T

- - 1 T T T

'U nu se d outputs connected to a 50-ohm resistor to ground.

SW ITCHING T IM E TEST CIR C U IT 10171

INPUT PULSE

I

G ENERA TO R

r

VCC1 VCC2 +2.0 Vdc

O

1 '

Q

u

V p p *—3.2 Vdc

INPUT PULSE

PROPAGATION D E L A Y W A V EFO R M S @ 25°C

N O T E S :

1. E a c h E C L 1 0 , 0 0 0 se rie s d e v ic e h a s bee n d e s ig n e d to m e e t the D C s p e c if ic a t io n s s h o w n in th e te st table, a fte r th e rm a l e q u ilib r iu m h a s be e n e sta b lish e d . T h e c ir c u it is in a test s o c k e t o r m o u n t e d o n a p r in te d c ir c u it b o a r d a n d tra n sv e rse a ir f lo w gre a te r th a n 5 0 0 f p m is m a in ta in e d . V o lt a g e levels w ill s h ift a p p r o x im a t e ly 6 m V w it h a n a ir f l o w o f 2 0 0 lin e a r fp m . O u t p u t s are te rm in a te d t h r o u g h a 5 0 - o h m re s is to r t o — 2 . 0 v o lts.

2. F o r A C tests, all in p u t a n d o u t p u t c a b le s t o th e sc o p e are e q u a l le n g t h s o f 5 0 - o h m c o a x ia l cable. W ire le n g th s h o u l d b e < 1/4 in c h f r o m T P jn to in p u t p in a n d T P o u t t o o u t p u t p in . A 5 0 - o h m t e r m in a tio n t o g r o u n d is lo c a te d in e a c h s c o p e in p u t. U n u s e d o u t p u t s are c o n n e c te d to a 5 0 - o h m re s is to r t o g ro u n d . 3. T e s t p r o c e d u r e s a re s h o w n f o r o n l y o n e i n p u t o r se t o f in p u t

c o n d it io n s . O t h e r in p u t s are teste d in th e sa m e m a n n e r.

4. A l l v o lta g e m e a s u re m e n ts are re fe re n c e d t o th e g r o u n d te rm in a l.

T e r m in a l s n o t s p e c ific a lly re fe re n ce d are le ft e le c t ric a lly o pe n .

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