TheTTL - Al Kossow's Bitsavers

82S105A
16 x 48 x 8 FIELD·PROGRAMMABLE LOGIC SEOUENCER
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 00-07 to 18-115, 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
PRODUCT
INPUT PRESENT STATE NEXT STATE OUT
LINE C C , , , , , ,
(In) (PS) (NS) (On)
5 4 3 2 , 0 9181716151413121' 10 51 4131 2 1'1 0 51 413121'1 0 716151413121'10
48 ·X - H H H H H H HIHIHIHIHIHIH IHIHIH HIHIHIHIHIH LILILILILIL LILILILILILILIL
49 - X L L L L L L LIL IL ILILIL IL ILILIL LILILILILIL HIHIHIHIHIH HIHIHIHIHIHIHIH
test array waveforms
~---------------------------------------------------5V
vcc~ ___ _
--------------ov
1 \*-tw-+/
CLI<
10-17
: hI-I ________________ ---!iC VIH
----...;....--------------~I . I VIL
I I+-tsu~th_J
I I I I
I
i I! LI ____________ --+: __ --'r=-= :::
I+tpd~ ~tpd tpd~
00-07 _____ -J"~:------~~ ~~:I_-_-_--_::~
I 1
INTERNAL 1 I I
STA TE RE~~S~!: ______ -J1 \: ji-_--_--_--_ ~~:
TEST ARRAY DELETED
AND
OPTION PRE/OE
OR
IH
PRODUCT
INPUT PRESENT STATE NEXT STATE OUT
LINE C C , , , , , ,
(In) (PS) INS) (On)
48 - - H H H H H H
49 - X L L L L L L
X = Fuse intact, -
5 4 3 2 , 0 9181716151413121' 10 51 4131 2 1'1 0 51 4131 2 1'1 0 716151413121'10
HIHIHIHIHIHIHIHIHIH HIHIHIHIHIH
L ILILILILILILILILIL LILILILILIL
= Fuse blown
-1-1-1-1-1- -1-1-1-1-1-1-1-
-1-1-1-1-1- -1-1-1-1-1-1-1-
3-176
TEXAS -II}
INSTRUMENTS
POST OFFICE BOX 225012 • DALLAS. TEXAS 75265