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| 型号： | TSC21020F-20SBSL3 |
| 英文描述： | IC CYCLONE III FPGA 55K 484FBGA |
| 中文描述： | 数字信号处理器| 32位|的CMOS | RAD数据通信硬| QFL | 256PIN |陶瓷 |
| 文件页数： | 40/51页 |
| 文件大小： | 763K |
| 代理商： | TSC21020F-20SBSL3 |
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40
TSC21020F
4153F
–
AERO
–
06/03
Figure 13.
Output Enable/Disable
Test Conditions
Output Disable Time
Output pins are considered to be disable when they stop driving, go into a high-imped-
ance state, and start to decay from their output high or low voltage. The time for the
voltage on the bus to decay by
V is dependent on the capacitive load, C
L
, and the load
current, I
L
. It can be approximated by the following equation:
The output disable time (t
DIS
) is the difference between t
MEASURED
and t
DECAY
as shown
in Figure 13. The time t
MEASURED
is the interval from when the reference signal switches
to when the output voltage decays
V from the measured output high or output low volt-
age. t
DECAY
is calculated with
V equal to 0.5V, and test loads C
L
and I
L
.
Output Enable Time
Output pins are considered to be enabled when they have made a transition from a
high-impedance state to when they start driving. The output enable time (t
ENA
) is the
interval from when a reference signal reaches a high or low voltage level to when the
output has reached a specified high or low trip point, as shown in the Output Enable
/Disable diagram. If multiple pins (such as the data bus) are enabled, the measurement
value is that of the first pin to start driving.
t
DECAY
C
V
I
L
--------------
=
相关PDF资料 |
PDF描述 |
|---|---|
| TSC21020F-20MA-E | IC CYCLONE III FPGA 16K 484FBGA |
| TSC21020F-20MAP833 | IC CYCLONE III FPGA 16K 484FBGA |
| TSC21020F-20MASB | IC CYCLONE III FPGA 16K 484FBGA |
| TSC21020F-20MASC | IC CYCLONE III FPGA 16K 164 MBGA |
| TSC21020F-20MASL1 | IC CYCLONE III FPGA 16K 240PQFP |
相关代理商/技术参数 |
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|---|---|
| TSC2102BIDA | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TSC2102BIDAR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TSC2102IDA | 功能描述:触摸屏转换器和控制器 Prog 4-wire w/Stereo DAC Hdphn Amp & PLL RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| TSC2102IDAG4 | 功能描述:触摸屏转换器和控制器 Prog 4-wire w/Stereo DAC Hdphn Amp & PLL RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| TSC2102IDAR | 功能描述:触摸屏转换器和控制器 Prog 4-wire w/Stereo DAC Hdphn Amp & PLL RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
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