CAPACITANCE 1
Parameter
Symbol
Parameter Description
Test Conditions
Typ
Unit
C
Input Capacitance
Output Capacitance
V = 2.0 V
IN
V = 5.0 V
CC
5
IN
T = 25°C
pF
A
C
V
= 2.0 V
8
OUT
OUT
f = 1 MHz
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 1
-10
Parameter
Symbol
Parameter Description
Input or Feedback to Combinatorial Output
Min
Max
Unit
ns
t
10
PD
t
Setup Time from Input, Feedback or SP to Clock
Hold Time
6
0
ns
S
t
ns
H
t
Clock to Output
6
ns
CO
t
Asynchronous Reset to Registered Output
Asynchronous Reset Width
13
ns
AR
t
8
8
ns
ARW
t
Asynchronous Reset Recovery Time
Synchronous Preset Recovery Time
ns
ARR
t
8
ns
SPR
t
LOW
4
ns
WL
Clock Width
HIGH
t
4
ns
WH
External Feedback
1/(t + t
)
83
110
125
MHz
MHz
MHz
ns
S
CO
f
Maximum Frequency (Note 2)
Internal Feedback (f ) 1/(t + t ) (Note 3)
CNT CO
MAX
S
No Feedback
1/(t + t )
WH WL
t
Input to Output Enable Using Product Term Control
Input to Output Disable Using Product Term Control
10
9
EA
t
ns
ER
Notes:
1. See “Switching Test Circuit” for test conditions.
2. These parameters are not 100% tested, but are calculated at initial characterization and at any time the design is modified where
frequency may be affected.
3. t is a calculated value and is not guaranteed. t can be found using the following equation:
CF
CF
t
= 1/f
(internal feedback) - t .
CF
MAX S
PALCE22V10Q-10 (Com’l)
15
LATTICE [ LATTICE SEMICONDUCTOR ]
