PAL16R6 AMD [Advanced Micro Devices], PAL16R6 Datasheet - Page 13

• Manufacturer Part Number: PAL16R6
• Description: 20-Pin TTL Programmable Array Logic
• Manufacturer: AMD [Advanced Micro Devices]

CAPACITANCE (Note 1)
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note 2)
Notes:
2. See Switching Test Circuit for test conditions.
3. Output delay minimums for t PD , t CO , t PZX , t PXZ , t EA , and t ER are defined under best case conditions. Future process improve-
4. Skew testing takes into account pattern and switching direction differences between outputs.
5. These parameters are not 100% tested, but are calculated at initial characterization and at any time the design is modified
6. t CF is a calculated value and is not guaranteed. t CF can be found using the following equation:
Note:
1. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified
Parameter
Parameter
Symbol
Symbol
ments may alter these values; therefore, minimum values are recommended for simulation purposes only.
where the frequency may be affected.
t CF = 1/f MAX (internal feedback) – t S .
t
where capacitance may be affected.
C
SKEWR
f
MAX
t
t
C
t
t
t
t
t
t
PZX
PXZ
t
WH
OUT
PD
t
CO
WL
EA
ER
S
H
IN
Clock Width
Parameter Description
Input or Feedback to Combinatorial Output
Setup Time from Input or Feedback to Clock
Hold Time
Clock to Output
Skew Between Registered Outputs (Note 4)
Frequency
OE to Output Enable
OE to Output Disable
Input to Output Enable Using
Product Term Control
Input to Output Disable Using
Product Term Control
Maximum
(Note 5)
Parameter Description
Input Capacitance
Output Capacitance
LOW
HIGH
External Feedback
Internal Feedback
(f
No Feedback
CNT
)
I
CLK, OE
1
–I
8
PAL16R8-4/5 (Com’l)
1/(t
1/(t
(Note 6)
1/(t
Test Conditions
V
V
IN
OUT
S
S
WH
= 2.0 V
+ t
+ t
= 2.0 V
+ t
CO
CF
WL
)
)
)
16R8, 16R6,
16L8, 16R8,
16L8, 16R6,
16R4
16R4
16R4
T
V
f = 1 MHz
A
CC
=
= 5.0 V
25 C
(Note 3)
Min
117
125
125
4.5
1
0
1
4
4
1
1
2
2
-5
Max
4.0
6.5
6.5
5
1
5
5
(Note 3)
Min
125
125
125
4.5
1
0
1
4
4
1
1
2
2
-4
8
5
8
Typ
Max
4.5
3.5
0.5
6.5
6.5
5
5
AMD
MHz
MHz
MHz
Unit
Unit
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2-15