PAL16L8B Datasheet, PDF (19/33 Pages) Advanced Micro Devices – 20-Pin TTL Programmable Array Logic

AMD
CAPACITANCE (Note 1)
Parameter
Symbol
Parameter Description
Test Conditions
Typ
Unit
CIN
COUT
Input Capacitance
Output Capacitance
VIN = 2.0 V
VOUT = 2.0 V
VCC = 5.0 V
TA = 25°C
f = 1 MHz
8
pF
9
Note:
1. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified
where capacitance may be affected.
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note 2)
Parameter
Symbol Parameter Description
Min
Max Unit
tPD
Input or Feedback to Combinatorial Output
16L8, 16R6,
16R4
15
ns
tS
Setup Time from Input or Feedback to Clock
15
ns
tH
Hold Time
0
ns
tCO
Clock to Output or Feedback
12
ns
tWL
Clock Width
tWH
LOW
HIGH
10
16R8, 16R6,
16R4
10
Maximum
External Feedback 1/(tS + tCO)
37
fMAX
Frequency
(Note 3)
No Feedback
1/(tWH + tWL)
50
tPZX
OE to Output Enable
tPXZ
OE to Output Disable
ns
ns
MHz
MHz
15
ns
15
ns
tEA
Input to Output Enable Using Product Term Control
tER
Input to Output Disable Using Product Term Control
16R8, 16R6,
16R4
15
ns
15
ns
Notes:
2. See Switching Test Circuit for test conditions.
3. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified
where capacitance may be affected.
PAL16R8B (Com’l)
2-21