參數(shù)資料
型號: EP2C20F256I6N
廠商: ALTERA CORP
元件分類: FPGA
英文描述: FPGA, 1196 CLBS, PBGA256
封裝: LEAD FREE, FBGA-256
文件頁數(shù): 5/168頁
文件大?。?/td> 2206K
代理商: EP2C20F256I6N
5–12
Altera Corporation
Cyclone II Device Handbook, Volume 1
February 2008
DC Characteristics for Different Pin Types
Table 5–11 specifies the bus hold parameters for general I/O pins.
On-Chip Termination Specifications
Table 5–12 defines the specifications for internal termination resistance
tolerance when using series or differential on-chip termination.
Table 5–11. Bus Hold Parameters
Parameter
Conditions
VCCIO Level
Unit
1.8 V
2.5 V
3.3 V
Min
Max
Min
Max
Min
Max
Bus-hold low, sustaining
current
VIN >
VIL(maximum)
30
50
70
μA
Bus-hold high, sustaining
current
VIN <
VIL(minimum)
–30
–50
–70
μA
Bus-hold low, overdrive
current
0 V < VIN < VCCIO
200
300
500
μA
Bus-hold high, overdrive
current
0 V < VIN < VCCIO
–200
–300
–500
μA
Bus-hold trip point (2)
0.68
1.07
0.7
1.7
0.8
2.0
V
Notes to Table 5–11:
(1)
There is no specification for bus-hold at VCCIO = 1.5 V for the HSTL I/O standard.
(2)
The bus-hold trip points are based on calculated input voltages from the JEDEC standard.
Table 5–12. Series On-Chip Termination Specifications
Symbol
Description
Conditions
Resistance Tolerance
Commercial
Max
Industrial
Max
Extended/
Automotive
Temp Max
Unit
25-
Ω R
S
Internal series termination without
calibration (25-
Ω setting)
VCCIO = 3.3V
±30
±40
%
50-
Ω R
S
Internal series termination without
calibration (50-
Ω setting)
VCCIO = 2.5V
±30
±40
%
50-
Ω RS
Internal series termination without
calibration (50-
Ω setting)
VCCIO = 1.8V
±30 (1)
±40
±50
%
(1)
For commercial –8 devices, the tolerance is ±40%.
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EP2C20F256I8GA 制造商:Altera Corporation 功能描述:
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