PLS159 PHILIPS [NXP Semiconductors], PLS159 Datasheet - Page 3

• Manufacturer Part Number: PLS159
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors Programmable Logic Devices
FUNCTIONAL DIAGRAM
LOGIC FUNCTION
NOTE:
Similar logic functions are applicable for D
and T mode flip-flops.
October 22, 1993
TOGGLE Q
RESET Q
HOLD Q
Programmable logic sequencer
(16
SET Q
STATE REGISTER
Q3
1
0
Q2
0
0
0
b
a
: J
2
K
1
: J
0
0
: J
3
K
Q1
: J
K
= 0
1
0
2
2
= (Q
45
1
1
K
= 0
= 0
= 0
3
3
= (Q
Q
Q
S
Q0
3
= (Q
= (Q
0
1
3
T
3
Q
3
31
Q
2
(LOGIC TERMS)
S
2
Q
12)
Q
n + 1
S
2
2
Q
R
Q
1
1
Q
Q
T
1
Q
1
0
Q
PRESENT STATE
A B C . . .
NEXT STATE
0
) A B C . . .
0
Q
Q
M
M
) A B C . . .
0
0
) A B C . . .
) A B C . . .
F
C
C
X
FLIP-FLOP TRUTH TABLE
+10V
OE
H
H
H
L
L
L
L
L
L
L
X
X
X
H
H
X
X
L
L
L
L
L
K
J
P
P
B
(4)
CK
X
X
X
R
Q
R
B
P R J
H
X
X
L
L
L
L
L
L
L
L
K
P
J
P
A
(CONTROL TERMS)
27
(4)
X X
H X
X L
X H
CK
L X
L
L
L H
L H H Q
L
L H
R
R
Q
A
L
L
L
K Q
H L
H L
H L
X L
X H
X L
L Q
L H
L H
L H
L
B
CK
L
A
Hi-Z
H* *
L* *
H*
L*
Q
Q
F
H
H
H
L
L
D
b
b
C
a
a
1. Positive Logic:
2.
3. X = Don’t care
4. * = Forced at F
5. At P = R = H, Q = H. The final state of Q
6. * * = Forced at F
NOTES:
J-K = T
T
(B0 B1
flip-flop in the Input mode. The load
control term, L
and the p-terms that are connected to the
associated flip-flop must be forced LOW
(disabled) during Preload.
depends on which is released first.
independent of program code (Diagnostic
mode), 3-State B outputs.
n
CK
denotes transition from Low to High level.
E
= C (I0 I1 I2
A
0
E
B
+ T
)
1
+ T
n
n
must be enabled (HIGH)
n
pin for loading the J-K
2
pin to load J-K flip-flop
) (Q
Product specification
PLS159A
OE
CLK
B
F
F
0
Q
1
T
)
31