| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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2,620 pcs
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2620 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
91 pcs
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91 pcs | On Request | 1 | On Request | On Request | 2026-02-25 06:16:38 | On Request | On Request |
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The ADSP-2181KST-133 is a single-chip microcomputer optimized for digital signal processing and high-speed numeric processing. It combines the ADSP-2100 family base architecture with three computational units, data address generators, and a program sequencer. Key specifications include 40 MIPS sustained performance from a 20 MHz crystal at 5.0 V, with a 25 ns instruction cycle time. The device integrates 80 kB of on-chip memory configured as 16K words (24-bit) of program RAM and 16K words (16-bit) of data RAM. It features two double-buffered serial ports with companding hardware, a 16-bit internal DMA port, an 8-bit byte DMA port, a programmable timer, flag I/O, and six external interrupts. The ADSP-2181KST-133 is available in a 128-lead TQFP (14x20 mm) package for surface mount assembly. It operates over a 0°C to 70°C temperature range with an absolute maximum range of -40°C to +85°C. Power-down circuitry supports low-power battery-operated applications.
The nominal supply voltage is 5.00 V.
It is available in a 128-LQFP (128-TQFP 14x20) package for surface mount.
The specified operating temperature range is 0°C to 70°C, with an absolute maximum range of -40°C to +85°C.
It is listed as RoHS3 Compliant, but this is unverified and low confidence.
The existing database shows a clock rate of 33.3 MHz, but the datasheet indicates a 20 MHz crystal yielding 40 MIPS. This may be a different speed grade.
It integrates 80 kB of on-chip memory, configured as 16K words (24-bit) of program RAM and 16K words (16-bit) of data RAM.
It includes a Synchronous Serial Port (SSP), 16-bit Internal DMA, 8-bit Byte DMA, I/O Memory, 6 External Interrupts, and 13 Programmable Flags.