参数资料
型号: L64724BC
厂商: LSI CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封装: PLASTIC, TQFP-80
文件页数: 9/32页
文件大小: 338K
代理商: L64724BC
L64724 Satellite Receiver
17
Figure 4 AC Test Load and Waveform for Standard Outputs
For 3-state outputs, timing measurements are made from the point at
which the output turns ON or OFF. An output is ON when its voltage is
greater than 2.5 V or less than 0.5 V. An output is OFF when its voltage
is less than VDD 0.5 V or greater than 0.5 V, as shown in Figure 5
Figure 5 AC Test Load and Waveforms for 3-State Outputs
Synchronous timing is shown in Figure 6. Synchronous inputs must have
a setup and hold relationship with respect to the clock signal that
samples them. Synchronous outputs have a delay from the clock edge
that asserts them.
CL = 15 pF
Test
Output
Point
1.5 V
MD94.361
0.5 V
VDD – 0.5 V
0.5 V
2.5 V
Iref = -20 mA
Iref = 20 mA
Vref = 1.5 V
Output
Test
Point
55 pF
Vref
MD94.362
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