EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 519

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Altera Corporation
November 2007
Note to
(1)
Note to
(1)
R
R
Table 1–6. Stratix III On-Chip Termination Calibration Accuracy Specifications (Part 2 of 2)
Table 1–7. On-Chip Termination Resistance Tolerance Specification for I/Os - Preliminary
O C T _ U N C A L
O C T _ C A L
50-Ω R
Symbol
OCT calibration accuracy is valid at the time of calibration only.
For resistance tolerance after power-up calibration, refer to
Symbol
Table
Table
T
1.2
1–6:
1–7:
Internal series termination without calibration
Internal series termination with calibration
Internal parallel termination with
calibration (50-Ω setting)
The accuracy listed in
voltage or temperature changes, the termination resistance value varies.
Table 1–7
Table 1–8
up calibration. Use
variation without re-calibration.
Description
Description
lists the resistance tolerance for Stratix III on chip termination.
lists OCT variation with temperature and voltage after power-
Stratix III Device Datasheet: DC and Switching Characteristics
Table 1–8
Table 1–6
Equation 1–1
and
V
CCIO
is valid at the time of calibration. If the
Equation 1–1
Conditions
Commercial Max
= 1.2 V
Stratix III Device Handbook, Volume 2
and
Resistance Tolerance
±30
(1)
Table
1–8.
to determine OCT
Commercial Industrial
Calibration Accuracy
Industrial Max
±10
Note (1)
—
—
Note (1)
- Preliminary
Units
—
%
%
1–7
Unit
%