1–30
Chapter 1: Enhanced Configuration Devices (EPC4, EPC8, and EPC16) Data Sheet
Operating Conditions
Table 1–14. Enhanced Configuration Device Configuration Parameters (Part 2 of 2)
Symbol
Parameter
OEassert time to assure reset
EXCLKinput frequency
EXCLKinput period
Condition
—
Min
60
—
10
4
Typ
—
—
—
—
—
—
—
2
Max
—
100
—
—
—
3
Unit
ns
tLOE
fECLK
40% duty cycle
—
MHz
ns
tECLK
tECLKH
tECLKL
tECLKR
tECLKF
tPOR (4)
EXCLKinput duty cycle high time
EXCLKinput duty cycle low time
EXCLKinput rise time
EXCLKinput fall time
40% duty cycle
40% duty cycle
100 MHz
100 MHz
2 ms
ns
4
ns
—
—
1
ns
3
ns
POR time
3
ms
ms
100 ms
70
100
120
Notes to Table 1–14:
(1) To calculate tOH, use the following equation: tOH = 0.5 (DCLKperiod) - 2.5 ns.
(2) This parameter is used for CRC error detection by the FPGA.
(3) This parameter is used for CONF_DONEerror detection by the enhanced configuration device.
(4) The FPGA VCCINT ramp time should be less than 1-ms for 2-ms POR, and it should be less than 70 ms for 100-ms POR.
Operating Conditions
Table 1–15 through Table 1–19 provide information about absolute maximum ratings,
recommended operating conditions, DC operating conditions, supply current values,
and pin capacitance data for the enhanced configuration devices.
Table 1–15. Enhanced Configuration Device Absolute Maximum Rating
Symbol
Parameter
Supply voltage
Condition
Min
-0.2
-0.5
—
Max
4.6
Unit
V
VCC
VI
With respect to ground
DC input voltage
With respect to ground
3.6
V
IMAX
IOUT
PD
DC VCC or ground current
DC output current, per pin
Power dissipation
—
—
100
25
mA
mA
mW
C
-25
—
—
360
150
135
135
TSTG
TAMB
TJ
Storage temperature
Ambient temperature
Junction temperature
No bias
Under bias
Under bias
-65
-65
—
C
C
Table 1–16. Enhanced Configuration Device Recommended Operating Conditions
Symbol
VCC
Parameter
Supplies voltage for 3.3-V operation
Input voltage
Condition
Min
Max
3.6
Unit
V
—
3.0
–0.3
0
VI
With respect to ground
VCC + 0.3
VCC
V
VO
TA
Output voltage
—
V
Operating temperature
For commercial use
0
70
C
For industrial use
–40
—
85
C
TR
TF
Input rise time
Input fall time
—
—
20
ns
ns
—
20
Configuration Handbook (Complete Two-Volume Set)
© December 2009 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
