AT43USB320A-AC Atmel, AT43USB320A-AC Datasheet - Page 103
AT43USB320A-AC
Manufacturer Part Number
AT43USB320A-AC
Description
IC USB MCU EMBED HUB AVR 100LQFP
Manufacturer
Atmel
Series
AVR®r
Datasheet
1.AT43USB320A-AC.pdf
(115 pages)
Specifications of AT43USB320A-AC
Applications
USB Hub/Microcontroller
Core Processor
AVR
Controller Series
AT43USB
Ram Size
512 x 8
Interface
SPI Serial, USB, UART
Number Of I /o
32
Voltage - Supply
4.4 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Program Memory Type
-
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Table 36. USB Source Timings, Full-speed Operation
Note:
1443E–USB–4/04
Symbol
TDRATE
TFRAME
TRFI
TRFIADJ
TDJ1
TDJ2
TFDEOP
TDEOP
TJR1
TJR2
TFEOPT
TFEOPR
TFST
1. With 6.000 MHz, 100 ppm crystal.
Parameter
Full Speed Data Rate
Frame Interval
Consecutive Frame Interval Jitter
Consecutive Frame Interval Jitter
Source Diff Driver Jitter
To Next Transition
For Paired Transitions
Source Jitter for Differential Transition to
SEO Transitions
Differential to EOP Transition Skew
Recvr Data Jitter Tolerance
To Next Transition
For Paired Transitions
Source SEO interval of EOP
Receiver SEO interval of EOP
Width of SEO interval during differential
transition
(1)
Figure 24. Low-speed Downstream Port Load
(1)
(1)
(1)
TxD-
TxD+
C
L
Condition
Average Bit Rate
No clock adjustment
With clock adjustment
= 200 pF to 600 pF
R
R
S
S
C
C
L
L
0.9995
11.97
-18.5
Min
160
82
-2
-1
-2
-2
-9
3.6V
AT43USB320A
1.5 K Ohm
1.0005
12.03
Max
18.5
126
175
42
14
2
1
5
5
9
Mb/s
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
103
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