參數(shù)資料
型號: X930A
廠商: Intel Corp.
英文描述: UNIVERSAL SERIAL BUS MICROCONTROLLER
中文描述: 通用串行總線的微控制器
文件頁數(shù): 33/38頁
文件大小: 283K
代理商: X930A
ADVANCE INFORMATION
29
8x930Ax UNIVERSAL SERIAL BUS (USB) MICROCONTROLLER
5.7
Testing Waveforms
Figure 18. AC Testing Input, Output Waveforms
Figure 19. Float Waveforms
AC inputs during testing are driven at V
CC
– 0.5V for a logic 1
and 0.45 V for a logic 0. Timing measurements are made at
a min of V
IH
for a logic 1 and V
OL
for a logic 0.
0.45 V
Inputs
Outputs
A4118-01
V
IH MIN
V
OL MAX
V
CC
– 0.5
0.2 V
CC
+ 0.9
0.2 V
CC
– 0.1
V
LOAD
+ 0.1 V
V
LOAD
– 0.1 V
Timing Reference
Points
V
LOAD
V
OH
– 0.1 V
V
OL
+ 0.1 V
For timing purposes, a port pin is no longer floating when a
100 mV change from load voltage occurs and begins to float
when a 100 mV change from the loading V
OH
/V
OL
level occurs
with I
OL/
I
OH
=
± 20 mA.
A4117-01
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