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參數(shù)資料
| 型號： | TMS320C242FNS |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 16-Bit Digital Signal Processor |
| 中文描述： | 16位數(shù)字信號處理器 |
| 文件頁數(shù)： | 45/66頁 |
| 文件大?。?/td> | 803K |
| 代理商： | TMS320C242FNS |
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TMS320C242
DSP CONTROLLER
SPRS063B – DECEMBER 1997 – REVISED DECEMBER 1999
45
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
Tester Pin
Electronics
VLOAD
IOL
CT
IOH
Output
Under
Test
50
Where:
IOL
IOH
VLOAD
CT
=
=
=
=
2 mA (all outputs)
300
μ
A (all outputs)
1.5 V
110-pF typical load-circuit capacitance
Figure 14. Test Load Circuit
signal transition levels
The data in this section is shown for the 5-V version. Note that some of the signals use different reference
voltages, see the recommended operating conditions table. TTL-output levels are driven to a minimum
logic-high level of 2.4 V and to a maximum logic-low level of 0.7 V.
Figure 15 shows the TTL-level outputs.
0.7 V (VOL)
20%
2.4 V (VOH)
80%
Figure 15. TTL-Level Outputs
TTL-output transition times are specified as follows:
For a high-to-low transition the level at which the output is said to be no longer high is below 80% of the
total voltage range and lower and the level at which the output is said to be low is 20% of the total voltage
range and lower.
For a low-to-high transition the level at which the output is said to be no longer low is 20% of the total voltage
range and higher and the level at which the output is said to be high is 80% of the total voltage range and
higher.
Figure 16 shows the TTL-level inputs.
0.7 V (VIL)
10%
2.0 V (VIH)
90%
Figure 16. TTL-Level Inputs
TTL-compatible input transition times are specified as follows:
For a high-to-low transitionon an input signal, the level at which the input is said to be no longer high is 90%
of the total voltage range and lower and the level at which the input is said to be low is 10% of the total voltage
range and lower.
For a low-to-high transition on an input signal, the level at which the input is said to be no longer low is 10%
of the total voltage range and higher and the level at which the input is said to be high is 90% of the total
voltage range and higher.
A
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相關代理商/技術參數(shù) |
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|---|---|
| TMS320C242PG | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DSP CONTROLLER |
| TMS320C242PGA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor |
| TMS320C242PGS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor |
| TMS320C25 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SECOND-GENERATION DIGITAL SIGNAL PROCESSORS |
| TMS320C25/-33/-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor |
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