EPM3256A ALTERA [Altera Corporation], EPM3256A Datasheet - Page 34

• Manufacturer Part Number: EPM3256A
• Description: Programmable Logic Device Family
• Manufacturer: ALTERA [Altera Corporation]

MAX 3000A Programmable Logic Device Family Data Sheet
Notes to tables:
(1)
(2)
(3)
(4)
(5)
Power
Consumption
34
t
LPA
Table 22. EPM3512A Internal Timing Parameters (Part 3 of 3)
Symbol
These values are specified under the recommended operating conditions, as shown in
Figure 11 on page 23
These values are specified for a PIA fan–out of one LAB (16 macrocells). For each additional LAB fan–out in these
devices, add an additional 0.1 ns to the PIA timing value.
This minimum pulse width for preset and clear applies for both global clear and array controls. The t
must be added to this minimum width if the clear or reset signal incorporates the t
path.
These parameters are measured with a 16–bit loadable, enabled, up/down counter programmed into each LAB.
The t
running in low–power mode.
LPA
Low-power adder
parameter must be added to the t
Parameter
for more information on switching waveforms.
Supply power (P) versus frequency (f
devices is calculated with the following equation:
P = P
The P
and switching frequency, can be calculated using the guidelines given in
Application Note 74 (Evaluating Power for Altera
The I
logic. The I
I
(A
The parameters in the I
CCINT
CCINT
MC
INT
IO
=
value, which depends on the device output load characteristics
TON
+ P
CCINT
value depends on the switching frequency and the application
IO
) + [B (MC
LAD
(5)
= I
Conditions
, t
value is calculated with the following equation:
CCINT
LAC
, t
IC
CCINT
, t
DEV
EN
V
CC
, t
SEXP
– MC
equation are:
Min
+ P
, t
IO
ACL
TON
-7
Note (1)
MAX
, and t
)] + (C
Max
Speed Grade
4.5
, in MHz) for MAX 3000A
CPPW
Devices).
LAD
MC
parameters for macrocells
Min
Table 10 on page
parameter into the signal
USED
-10
Altera Corporation
Max
5.0
f
MAX
LPA
parameter
19. See
tog
Unit
ns
LC
)