AT43USB325E-AU Atmel, AT43USB325E-AU Datasheet - Page 100
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
AT43USB325E-AU
Manufacturer Part Number
AT43USB325E-AU
Description
IC USB KEYBOARD CTRLR 64LQFP
Manufacturer
Atmel
Series
AVR®r
Datasheet
1.AT43USB325E-AC.pdf
(109 pages)
Specifications of AT43USB325E-AU
Applications
Keyboard Controller
Core Processor
AVR
Program Memory Type
SRAM (16 kB)
Controller Series
AT43USB
Ram Size
512 x 8
Interface
SPI, 3-Wire Serial
Number Of I /o
42
Voltage - Supply
4.4 V ~ 5.25 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT43USB325E-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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AT43USB325
Figure 9-4.
Figure 9-5.
Figure 9-6.
Differential Data Jitter
Differential-to-EOP Transition Skew and EOP Width
Receiver Jitter Tolerance
Data Lines
Differential
T
PERIOD
Differential
Data Lines
T
Differential
Data Lines
PERIOD
T
PERIOD
N*T
Diff. Data-to-
PERIOD
SE0 Skew
N*T
+ T
Consecutive
Crossover
N*T
Transitions
PERIOD
DEOP
Points
Consecutive
Transitions
N*T
PERIOD
T
JR
Transitions
PERIOD
+ T
Crossover
Extended
Paired
N*T
+ T
XJR1
Point
Consecutive
Transitions
PERIOD
JR1
+ T
XJR2
+ T
T
JR1
Source EOP Width:
Receiver EOP Width:
JR1
T
JR2
T FEOPT
T
LEOPT
T
T FEOPR
LEOPR
3355C–USB–4/05
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