AT43USB325E-AU Atmel, AT43USB325E-AU Datasheet - Page 91
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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Figure 8-1.
3355C–USB–4/05
Port Power Management
BUS_POWER
GND
Figure 8-1
hub design with global overcurrent protection and ganged power switching.
shows a simplified diagram of a power management circuit of an AT43USB325 based
PWRN
IN
CTL
GND
SWITCH
AT43USB325
OVCN
FLG
OUT
VCC
PORT2_POWER
PORT2_GND
PORT3_POWER
PORT3_GND
PORT4_POWER
PORT4_GND
PORT5_POWER
PORT5_GND
AT43USB325
91
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