參數(shù)資料
型號(hào): M66291GP
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封裝: LQFP-48
文件頁數(shù): 16/126頁
文件大小: 810K
代理商: M66291GP
MITSUBISHI <DIGITAL ASSP>
M66291GP
4. ELECTRICAL CHARACTERISTICS
USB -108
Ver.1.0 Apr.9 2001
4.8 Measurement circuit
4.8.1
Pins except for USB buffer block
4.8.2
USB buffer block
CL
RL=1k
SW 2
SW 1
CL
Elem ents to
be m easured
P.G.
RL=1k
Vcc
Input
tdis(CTRL(LZ))
tdis(CTRL(HZ))
ta(CTRL(ZL))
ta(CTRL(ZH))
Item
SW 1
SW 2
close
open
close
open
(1) Input pulse level : 0 ~ 3.3V, 0 ~ 5.0V
Input pulse rise/fall time : tr,tf=3ns
Input timing standard voltage : IOVcc/2
Output timing judge voltage : IOVcc/2
(The tdis (LZ) is judged by 10% of the
output amplitude and the tdis (HZ) by
90% of the output amplitude.)
(2) The electrostatic capacity CL includes
the stray capacitance of the wire
connection and the input capacitance
of the probe.
50
GND
D15-0
D15-0 other output
C L
D+
R L=15k
R L=27
Vcc
R L=1.5K
C L
D-
R L=15k
R L=27
Vcc
GN D
E lem ents to
be m easured
(1) T he tr and tf are judged by the transition tim e of
the 10% am plitude point and 90% am plitude point
respectively.
(2) T he electrostatic capacity C L includes the stray
capacitance of the wire connection and the
input capacitance of the probe.
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