参数资料
型号: TMS320C2812ZHHS
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 16-BIT, 150 MHz, OTHER DSP, PBGA179
封装: LEAD FREE, BGA-179
文件页数: 156/156页
文件大小: 1826K
代理商: TMS320C2812ZHHS
Electrical Specifications
99
April 2001 Revised October 2005
SPRS174M
6.9
Signal Transition Levels
Note that some of the signals use different reference voltages, see the recommended operating conditions
table. Output levels are driven to a minimum logic-high level of 2.4 V and to a maximum logic-low level of
0.4 V.
Figure 66 shows output levels.
0.4 V (VOL)
2.4 V (VOH)
Figure 66. Output Levels
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 VOH(MIN)
and the level at which the output is said to be low is VOL(MAX) and lower.
For a low-to-high transition, the level at which the output is said to be no longer low is above VOL(MAX)
and the level at which the output is said to be high is VOH(MIN) and higher.
Figure 67 shows the input levels.
0.8 V (VIL)
2.0 V (VIH)
Figure 67. Input Levels
Input transition times 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
below VIH(MIN) and the level at which the input is said to be low is VIL(MAX) 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
above VIL(MAX) and the level at which the input is said to be high is VIH(MIN) and higher.
NOTE: See the individual timing diagrams for levels used for testing timing parameters.
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