| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
6,480 pcs
|
6480 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Controller Series | |
| Core Processor | |
| Interface | |
| Mounting Type | |
| Number of I | |
| Operating Temperature | |
| Program Memory Type | |
| RAM Size | |
| Supplier Device Package | |
| Voltage | |
| Watchdog Timer |
The AT43USB326-AU is an application-specific microcontroller from Microchip Technology designed for USB keyboard controller applications. It integrates an AVR 8-bit RISC core with an 83 ns instruction cycle time, 16 KB of mask ROM program memory, and 512 bytes of data SRAM. The device includes a USB hub with one attached and two external ports, supporting keyboard function with three programmable endpoints.
Connectivity features include 32 programmable I/O pins, an 18x8 keyboard matrix with pull-up resistors, and four LED driver outputs for status indicators. Additional peripherals include an 8-bit timer/counter with prescaler, a watchdog timer, and internal/external interrupt sources. The microcontroller operates from a 4.4V to 5.25V supply and includes an on-chip 3.3V regulator and a 6 MHz oscillator with PLL.
The AT43USB326-AU is housed in a 48-lead LQFP package (7x7 mm) with surface mount mounting. It is rated for an operating temperature range of -40°C to 85°C, making it suitable for commercial and industrial environments. The device is RoHS3 compliant and has an MSL of 1 (unlimited).
4.4V to 5.25V.
48-lead LQFP (7x7 mm).
-40°C to 85°C.
Yes, RoHS3 compliant.
Mask ROM (16kB).
32 programmable I/O pins.
Yes, with one attached and two external ports.