參數(shù)資料
型號: AT43USB351M-AC
廠商: ATMEL CORP
元件分類: 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
文件頁數(shù): 90/101頁
文件大?。?/td> 624K
代理商: AT43USB351M-AC
90
AT43USB351M
3302E–USB–7/04
Note:
VCEXT is the voltage of CEXT1, CEXT2 or CEXTA.
Note:
XTAL2 must not be used to drive other circuitry.
Table 32.
USB Signals: DPx, DMx
Symbol
Parameter
Condition
Min
Max
Unit
V
IH
Input Level High (driven)
2.0
V
V
IHZ
Input Level High (floating)
2.7
V
V
IL
Input Level Low
0.8
V
V
DI
Differential Input Sensitivity
DPx and DMx
0.2
V
V
CM
Differential Common Mode
Range
0.8
2.5
V
V
OL1
Static Output Low
RL of 1.5 k
to 3.6V
0.3
V
V
OH1
Static Output 0High
RL of 15 k
to
GND
2.8
3.6
V
V
CRS
Output Signal Crossover
1.3
2.0
V
V
IN
Input Capacitance
20
pF
Table 33.
PA, PB, PD
Symbol
Parameter
Condition
Min
Max
Unit
V
OL2
Output Low Level, PA, PB,
PD
IOL = 2 mA
0.5
V
V
OH2
Output High Level
IOH = 2mA
VCEXT - 0.4
V
V
IL2
Input Low Level
-0.3
0.3 VCEXT
V
V
IH2
Input High Level
0.7 VCEXT
VCEXT + 0.3
V
RPU
PC Pull-up resistor current
V = 0
90
280
μA
C
Input/Output capacitance
1 MHz
10
pF
Table 34.
Oscillator Signals: XTAL1, XTAL2
Symbol
Parameter
Condition
Min
Max
Unit
V
LH
OSC1 switching level
0.47
1.20
V
V
HL
OSC1 switching level
0.67
1.44
V
CX1
Input capacitance, XTAL1
10
pF
CX2
Output capacitance, XTAL2
10
pF
C12
OSC1/2 capacitance
5
pF
t
SU
Start-up time
6 MHz, fundamental
2
ms
DL
Drive level
50
μW
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