AT43USB326-AU Atmel, AT43USB326-AU Datasheet - Page 77
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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3313D–USB–04/06
Table 15. USB Signals: DPx, DMx
Table 16. PA, PB, PC, PD, PF
Note:
Symbol
V
V
V
V
V
V
V
V
V
Symbol
V
RPU
V
V
V
V
V
V
C
IH
IHZ
IL
DI
CM
OL1
OH1
CRS
IN
OL2
IL3
IH3
IL4
IH4
OL4
OH4
VCEXT is the voltage at CEXT1, CEXT2.
Parameter
Output Low Level, PA, PB,
PE[0:3]
PC Pull-up resistor current
Input Low Level, PC
Input High Level, PC
Input Low Level, PD[0,1]
Input High Level, PD[0,1]
Output Low Level, PD[0,1]
Output High Level, PD[0,1]
Input/Output capacitance
Parameter
Input Level High (driven)
Input Level High (floating)
Input Level Low
Differential Input Sensitivity
Differential Common Mode
Range
Static Output Low
Static Output High
Output Signal Crossover
Input Capacitance
Condition
DPx and DMx
RL of 1.5 kΩ
to 3.6V
RL of 15 kΩ to
GND
Condition
IOL = 4 mA
V = 0
IOL = 4 mA
IOH = 4 mA
1 MHz
0.7 VCEXT
0.7 VCEXT
0.7 VCEXT
Min
Min
2.0
2.7
0.2
0.8
2.8
1.3
90
AT43USB326
0.3 VCEXT
0.3 VCEXT
0.3 VCEXT
Max
Max
280
0.5
0.8
2.5
0.3
3.6
2.0
10
20
Unit
Unit
µA
pF
pF
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
77
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