TheTTL - Al Kossow's Bitsavers

82S167A
14 x 48 x 6 FIELD·PROGRAMMABLE LOGIC SEQUENCER
WITH 3·STATE OUTPUTS OR PRESET
test array
A test array that consists of product lines 48 and 49 has been added to these devices to allow testing
prior to programming. The test array is factory programmed as shown below. Testing is accomplished
by connecting 00-03 to 110-113, PRE/OE to GND, and applying the proper input signals as shown in the
timing diagram. Product lines 48 and 49 must be deleted during user programming to avoid interference
. with the programmed logic function.
test array program
AND
OPTION PRE/OE
OR
IH
INPUT PRESENT STATE NEXT STATE OUTPUT
PRODUCT
LINE C C 1 1 1 1 1 1
(lnl (PSI (NSI (Onl
5 4 3 2 1 0 9181716151413121110 51413121110 51413121110 716 51413121110
48 X - H H H H H H HIHIHIHIHIHIHIHIHIH HIHIHIHIHIH LILILILILIL LIL LILILILILIL
49 - X L L L L L L LILILILILILILILILIL LILILILILIL HIHIHIH1HTH H1H HIHIHIHIHIH
test array waveforms
~ ______________ ~ __________________________________ 5V
"T1
5[
9-
...
c.c ...
""C
o
Q)
3
3
Q)
e­
m
r­
o
c.c
c:;.
vcc~ ___ _
ClK
------ -"7 - - - -- - - - ----ov
I4-tw -+/
--~------------..... , I VIL
i+-tsu.......-th--J
I I I
1
10-19 ___ -+
1
____ ---.1, ! ...
h '..._______________.... ILVIH
I _____________-+:___..."r=:::
1+ tpd +I I+-+t- tpd tpd ~
00-03 ___--J!.i--------..,~ j
;:;-:-------:::
INTERNAL I 1 I
STATE REG~~~:; I \J\;"I____...;....____________--J/ ____:::
test array deleted
AND
OPTION PRE/OE
OR
IH
PRODUCT
LINE C C 1 1 1 1 1 1
INPUT PRESENT STATE NEXT STATE OUTPUT
(lnl (PSI (NSI (Onl
5 4 321 o 9181716151413121110 51413121110 51413 2 1 o 71615 4 3 2 1 10
48 - - H H H H H H HIHIHIHIHIHIHIHIHIH HIHIHIHIHIH -1-1- - - - "":T-I- - - - -1-
49 - X L L L L L L LILILILILILILILILIL LILILILILIL -1-1- - - - -1-1- - - -1-1-
x = Fuse intact. -
= Fuse blown
3-188 TEXAS ..
INSTRUMENTS
POST OFFICE BOX 225012 • DALLAS. TEXAS 75265