EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 248

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

Configuring Cyclone III Devices
Configuration
Requirements
10–12
Cyclone III Device Handbook, Volume 1
Passive Serial Standard (PS Standard POR)
Active Serial Standard (AS Standard POR)
Intel Active Parallel ×16 Fast (AP Fast POR)
Intel Active Parallel × 16 Fast (AP Fast POR)
Intel Active Parallel × 16 (AP Standard POR)
Intel Active Parallel × 16 (AP Standard POR)
Spansion Active Parallel × 16 Fast (AP Fast
POR)
Spansion Active Parallel × 16 (AP Standard
POR)
Intel Active Parallel × 16 (AP Slow POR)
Passive Serial Fast (PS Fast POR)
Active Serial Fast (AS Fast POR)
Fast Passive Parallel Fast (FPP Fast POR)
Table 10–5. Cyclone III Supported Power-On Reset Times Across Configuration Schemes (Part 1 of 2)
Configuration Scheme
f
For more information about the remote system upgrade feature, refer to
the Remote System Upgrade with Cyclone III Devices chapter in the
Cyclone III Device Handbook.
Power-On Reset Circuit
The POR circuit keeps the device in reset state until the power supply
voltage levels have stabilized on power-up. Upon power-up, the device
does not release nSTATUS until V
and 8 are above the device’s POR trip point. On power up, V
V
1
In Cyclone III devices you can select between a fast POR time or a
standard POR time depending on the MSEL pin settings. The fast POR
time is 3 ms < T
time is 50ms < T
cases, you can extend the POR time by using an external component to
assert the nSTATUS pin low.
for each configuration scheme.
CCA
are monitored for brown-out conditions.
V
CCA
is the analog power to the PLL.
POR
POR
(3ms< T
Fast POR Time
< 9 ms for fast configuration time. The standard POR
< 200 ms which has a lower power ramp rate. In both
v
v
v
v
v
v
POR
<9ms)
Table 10–5
CCINT
(50ms<T
Standard POR Time
, V
shows the supported POR times
CCA
Altera Corporation-Preliminary
, and V
POR
v
v
v
v
v
v
<200ms)
CCIO
of banks 1, 6, 7,
Configuration
Standard
3.3/2.5 V
3.0/2.5 V
3.3/2.5 V
3.3/2.5 V
CCINT
Voltage
March 2007
3.3 V
3.3 V
1.8 V
3.3 V
1.8 V
1.8 V
1.8 V
3.3 V
and
(1)