AT43USB326-AU Atmel, AT43USB326-AU Datasheet - Page 5

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

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

Figure 2. The AT43USB326 Enhanced RISC Architecture with USB Keyboard Controller and Hub
3313D–USB–04/06
Instruction
Instruction
Program
Memory
Register
Decoder
Control
8 x 16
Lines
Program
Counter
General-purpose
Status and
Registers
Hub and
Function
32 x 8
2 GPIO
Control
ALU
512 x 8
SRAM
Lines
USB
18 Strobe Outputs
8 Strobe Inputs
Timer/Counter
4 LED Drives
Watchdog
Interrupt
Unit
Timer
8-bit
AT43USB326
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