參數(shù)資料
型號： TMS320LC31PQL
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號處理
英文描述： DIGITAL SIGNAL PROCESSORS
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 14/48頁
文件大?。?/td> 652K
代理商： TMS320LC31PQL
TMS320C31, TMS320LC31
DIGITAL SIGNAL PROCESSORS
SPRS035B – MARCH 1996 – REVISED JANUARY 1999
14
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
Tester Pin
Electronics
VLoad
IOL
C
T
IOH
Output
Under
Test
Where:
IOL
IOH
VLOAD= 2.15 V
CT
= 2 mA (all outputs)
= 300
μ
A (all outputs)
= 80-pF typical load-circuit capacitance
Figure 7. TMS320LC31 Test Load Circuit
signal transition levels for ’LC31 (see Figure 8 and Figure 9)
Outputs are driven to a minimum logic-high level of 2 V and to a maximum logic-low level of 0.4 V. Output
transition times are specified as follows:
For a high-to-low transition on an output signal, the level at which the output is said to be no longer high
is 2 V and the level at which the output is said to be low is 1 V.
For a low-to-high transition, the level at which the output is said to be no longer low is 1 V and the level at
which the output is said to be high is 2 V.
0.4 V
0.6 V
2 V
1.8 V
Figure 8. ’LC31 Output Levels
Transition times for inputs are specified as follows:
For a high-to-low transition on an input signal, the level at which the input is said to be no longer high is
1.8 V and the level at which the input is said to be low is 0.6 V.
For a low-to-high transition on an input signal, the level at which the input is said to be no longer low is
0.6 V and the level at which the input is said to be high is 1.8 V.
1.8 V
0.6 V
Figure 9. ’LC31 Input Levels
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