参数资料
型号: DK-START-3C25N
厂商: Altera
文件页数: 9/34页
文件大小: 0K
描述: KIT STARTER CYCLONE III EP3C25
产品培训模块: Cyclone® III FPGA
Three Reasons to Use FPGA's in Industrial Designs
特色产品: Cyclone? III FPGA Starter Kit
标准包装: 1
系列: Cyclone® III
类型: FPGA
适用于相关产品: EP3C25
所含物品: 开发板、Quartus?II 网络版、用户指南、参考手册、示意图、布局、BOM 等
产品目录页面: 605 (CN2011-ZH PDF)
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其它名称: 544-2370
Chapter 1: Cyclone III Device Datasheet
Electrical Characteristics
Internal Weak Pull-Up and Weak Pull-Down Resistor
Table 1–10 lists the weak pull-up and pull-down resistor values for Cyclone III
devices.
1–9
Table 1–10. Cyclone III Devices Internal Weak Pull-Up and Weak Pull-Down Resistor
Symbol
Parameter
Conditions
V CCIO = 3.3 V ± 5%
Min
7
Typ
25
Max
41
Unit
k ?
R _PU
R _PD
Value of I/O pin pull-up resistor before
and during configuration, as well as
user mode if the programmable
pull-up resistor option is enabled
Value of I/O pin pull-down resistor
before and during configuration
V CCIO = 3.0 V ± 5%
V CCIO = 2.5 V ± 5%
V CCIO = 1.8 V ± 5%
V CCIO = 1.5 V ± 5%
V CCIO = 1.2 V ± 5%
V CCIO = 3.3 V ± 5%
V CCIO = 3.0 V ± 5%
V CCIO = 2.5 V ± 5%
V CCIO = 1.8 V ± 5%
V CCIO = 1.5 V ± 5%
7
8
10
13
19
6
6
6
7
8
28
35
57
82
143
19
22
25
35
50
47
61
108
163
351
30
36
43
71
112
k ?
k ?
k ?
k ?
k ?
k ?
k ?
k ?
k ?
k ?
Notes to Table 1–10 :
(1) All I/O pins have an option to enable weak pull-up except configuration, test, and JTAG pin. Weak pull-down feature is only available for JTAG
TCK.
(2) Pin pull-up resistance values may be lower if an external source drives the pin higher than V CCIO .
(3) R _PU = (V CCIO – V I )/I R_PU
Minimum condition: –40°C; V CCIO = V CC + 5%, V I = V CC + 5% – 50 mV;
Typical condition: 25°C; V CCIO = V CC , V I = 0 V;
Maximum condition: 125°C; V CCIO = V CC – 5%, V I = 0 V; in which V I refers to the input voltage at the I/O pin.
(4) R _PD = V I /I R_PD
Minimum condition: –40°C; V CCIO = V CC + 5%, V I = 50 mV;
Typical condition: 25°C; V CCIO = V CC , V I = V CC – 5%;
Maximum condition: 125°C; V CCIO = V CC – 5%, V I = V CC – 5%; in which V I refers to the input voltage at the I/O pin.
Hot Socketing
Table 1–11 lists the hot-socketing specifications for Cyclone III devices.
Table 1–11. Cyclone III Devices Hot-Socketing Specifications
Symbol
I IOPIN(DC)
Parameter
DC current per I/O pin
Maximum
300 ? A
I IOPIN(AC)
AC current per I/O pin
8 mA
Note to Table 1–11 :
(1) The I/O ramp rate is 10 ns or more. For ramp rates faster than 10 ns, |IIOPIN| = C
dv/dt, in which C is I/O pin capacitance and dv/dt is the slew rate.
July 2012
Altera Corporation
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