AT43USB326-AU Atmel, AT43USB326-AU Datasheet - Page 80
![IC USB KEYBOARD CTRLR 48LQFP](/photos/6/76/67647/453-48-lqfp_sml.jpg)
AT43USB326-AU
Manufacturer Part Number
AT43USB326-AU
Description
IC USB KEYBOARD CTRLR 48LQFP
Manufacturer
Atmel
Series
AVR®r
Datasheet
1.AT43USB326-AC.pdf
(102 pages)
Specifications of AT43USB326-AU
Applications
Keyboard Controller
Core Processor
AVR
Program Memory Type
Mask ROM (16 kB)
Controller Series
AT43USB
Ram Size
512 x 8
Interface
USB
Number Of I /o
32
Voltage - Supply
4.4 V ~ 5.25 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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80
AT43USB326
Figure 15. Differential Data Jitter
Figure 16. Differential-to-EOP Transition Skew and EOP Width
Figure 17. Receiver Jitter Tolerance
Differential
Data Lines
T
PERIOD
Differential
Data Lines
T
Differential
Data Lines
PERIOD
T
PERIOD
N*T
PERIOD
Diff. Data-to-
SE0 Skew
N*T
+ T
Crossover
Consecutive
N*T
Transitions
PERIOD
DEOP
Points
Consecutive
Transitions
N*T
PERIOD
T
JR
Transitions
PERIOD
+ T
Crossover
Extended
Paired
N*T
XJR1
+ T
Point
Consecutive
Transitions
PERIOD
JR1
+ T
XJR2
+ T
T
JR1
Source EOP Width:
Receiver EOP Width:
JR1
T
JR2
T FEOPT
T
LEOPT
T FEOPR
T
LEOPR
3313D–USB–04/06
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