AT43USB326-AC Atmel, AT43USB326-AC Datasheet - Page 77

• Manufacturer Part Number: AT43USB326-AC
• Description: IC USB KEYBOARD CTRLR HUB 48LQFP
• Manufacturer: Atmel
• Series: AVR®r

Specifications of AT43USB326-AC

• 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: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
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