參數(shù)資料
型號(hào): AT43USB351M-AC
廠(chǎng)商: ATMEL CORP
元件分類(lèi): 微控制器/微處理器
英文描述: Full-speed/Low-speed USB Microcontroller with ADC and PWM
中文描述: 8-BIT, MROM, 24 MHz, RISC MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48
文件頁(yè)數(shù): 91/101頁(yè)
文件大?。?/td> 624K
代理商: AT43USB351M-AC
91
AT43USB351M
3302E–USB–7/04
AC Characteristics
Note:
1. With external 27
series resistor.
Figure 25.
Full-speed Load
Table 35.
USB Driver Characteristics, Full Speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
TR
Rise time
C
L
= 50 pF
4
20
ns
TF
Fall time
C
L
= 50 pF
4
20
ns
TRFM
TR/TF matching
90
110
%
ZDRV
Driver output resistance
(1)
Steady state drive
28
44
Table 36.
USB Driver Characteristics, Low-speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
TR
Rise time
CL = 200 - 600 pF
75
300
ns
TF
Fall time
CL = 200 - 600 pF
75
300
ns
TRFM
TR/TF matching
80
125
%
TxD+
TxD-
R
S
R
S
C
L
C
L
C
L
= 50 pF
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