PAL16L8
PAT1019
QUAD PER BIT MUX W. 3-STATE & POLARITY              1984-03-21/OEL

DD0  RD0  DD1  RD1  DD2  RD2  DD3  RD3  COMP GND
OE'  O0   O1   S0   S1   S2   S3   O2   O3   VCC


IF(/OE')  /O3 = /COMP * /S3 * /RD3
              + /COMP *  S3 * /DD3
              +  COMP * /S3 *  RD3
              +  COMP *  S3 *  DD3

IF(/OE')  /O2 = /COMP * /S2 * /RD2
              + /COMP *  S2 * /DD2
              +  COMP * /S2 *  RD2
              +  COMP *  S2 *  DD2

IF(/OE')  /O1 = /COMP * /S1 * /RD1
              + /COMP *  S1 * /DD1
              +  COMP * /S1 *  RD1
              +  COMP *  S1 *  DD1

IF(/OE')  /O0 = /COMP * /S0 * /RD0
              + /COMP *  S0 * /DD0
              +  COMP * /S0 *  RD0
              +  COMP *  S0 *  DD0


FUNCTION TABLE:
COMP OE' S0 RD0 DD0 O0 S1 RD1 DD1 O1 S2 RD2 DD2 O2 S3 RD3 DD3 O3

;C
;OO   RD     RD     RD     RD
;ME  SDD O  SDD O  SDD O  SDD O
;P'  000 0  111 1  222 2  333 3
--------------------------------
 LL  LLH L  LHL H  HHL L  HLH H
 LL  LHL H  HHL L  HLH H  LLH L
 LL  HHL L  HLH H  LLH L  LHL H
 LL  HLH H  LLH L  LHL H  HHL L
;
 HL  LLH H  LHL L  HHL H  HLH L
 HL  LHL L  HHL H  HLH L  LLH H
 HL  HHL H  HLH L  LLH H  LHL L
 HL  HLH L  LLH H  LHL L  HHL H
;
 XH  XXX Z  XXX Z  XXX Z  XXX Z
--------------------------------

DESCRIPTION: This is a quad selector with select control for
             each bit.
             Sx = 0  brings RDx to output Ox and
             Sx = 1  brings DDx to output Ox.
             Outputs will be complemented when COMP = 1.
             Outputs are 3-stated when OE' = 1.