My Inquiry
My Account
Analog Devices Inc. ADSP-2185MKSTZ-300
- Part No.:
- ADSP-2185MKSTZ-300
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2185MKSTZ-300.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,952
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADSP-2185MKSTZ-300 from Analog Devices is a 24-bit fixed-point DSP microcomputer optimized for real-time signal processing, featuring 16K × 24-bit on-chip program RAM, 16K × 16-bit data RAM, dual synchronous serial ports (SPORT0/SPORT1), 13.3 ns instruction cycle time at 2.5 V, and full ICE-Port™ emulation support - deployed in audio codecs, telecom line cards, and industrial motor control systems.
For engineers reviewing the ADSP-2185MKSTZ-300 datasheet, ADSP-2185MKSTZ-300 pinout, ADSP-2185MKSTZ-300 application, or ADSP-2185MKSTZ-300 equivalent, key selection criteria include its 100-lead LQFP package, 75 MIPS sustained performance, dual-DAG architecture enabling zero-overhead looping, byte DMA port for EPROM booting, and host/full memory mode flexibility for system integration.
Technical Context
The ADSP-2185MKSTZ-300 implements the ADSP-2100 base architecture with three independent computational units (ALU, MAC, shifter), two dedicated data address generators (DAG1/DAG2), and a zero-overhead program sequencer supporting conditional jumps and subroutine calls in one cycle. Its 3-bus internal architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - within every instruction cycle.
It supports two operating modes determined at reset: Full Memory Mode (Mode C = 0) with 14-bit external address bus (A13:A0) and 24-bit bidirectional data bus (D23:D0), or Host Mode (Mode C = 1) using a 16-bit multiplexed IDMA port (IAD15:IAD0) with dedicated control signals (IWR, IRD, IAL, IS, IACK). SPORT0 and SPORT1 are software-configurable for framing, clock source, and companding (A-law/µ-law per G.711).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ADSP-2100 family 24-bit fixed-point DSP with ALU, MAC, shifter, dual DAGs, and zero-overhead loop sequencer |
| Instruction Cycle Time | 13.3 ns @ 2.5 V - enables 75 MIPS sustained throughput with single-cycle instruction execution |
| On-Chip Memory | 16K × 24-bit program RAM + 16K × 16-bit data RAM - supports dual-operand fetch and overlay loading via BDMA |
| Serial Interfaces | Dual independent SPORTs (SPORT0/SPORT1) - each with double-buffered Tx/Rx, hardware companding, and frame sync flexibility |
| Power Management | Power-down mode with 200 CLKIN-cycle wake-up; idle/slow-idle modes for battery-operated portable equipment |
| System Interface | Configurable Full Memory or Host Mode; 16-bit IDMA port; 8-bit BDMA port; 2048-location I/O space; programmable wait states |
| Package & Pin Count | 100-lead LQFP (ST-100), 0.5 mm pitch - verified for ADSP-2185MKSTZ-300 per Analog Devices datasheet Rev. 0, p.35–36 |
Pinout & Package
ADSP-2185MKSTZ-300 is packaged in a 100-lead metric thin plastic quad flatpack (LQFP, ST-100) with 0.5 mm lead pitch and exposed thermal pad. Pin functions are mode-dependent: Full Memory Mode (Mode C = 0) uses A13:A0 and D23:D0 for external memory access; Host Mode (Mode C = 1) repurposes pins for 16-bit IDMA bus (IAD15:IAD0) and control signals (IWR, IRD, IAL, IS, IACK).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Active-low signal initializing all registers and forcing boot sequence - sampled only at power-up or assertion |
| A13:A0 | External address output (Full Memory Mode) | 14-bit multiplexed address bus for program/data/byte/I/O spaces - enables 4 MB external memory interface |
| D23:D0 | Bidirectional data bus (Full Memory Mode) | 24-bit data path; upper 8 bits (D23:D16) serve as byte memory address bits in BDMA operations |
| IAD15:IAD0 | IDMA address/data bus (Host Mode) | 16-bit multiplexed bus for high-speed transparent access to on-chip RAM - eliminates glue logic in host-processor systems |
| SPORT0 / SPORT1 | Synchronous serial I/O (5 pins each) | Configurable Tx/Rx clocks, frame sync, and data lines - supports TDM, µ-law/A-law, and UART emulation via software |
| PF7:PF0 | Programmable flag I/O | 13 total flags (8 bidirectional + 3 outputs); PF7–PF4 share IRQ functionality - used for system signaling and status handshake |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle context switch | Enables deterministic real-time interrupt response with no pipeline flush or register save overhead |
| Dual-data address generators (DAG1/DAG2) | Each maintains four post-modified pointers with length registers - supports circular buffers and FFT addressing without CPU intervention |
| Byte DMA controller (BDMA) | Directly addresses up to 4 MB of external byte-wide memory (e.g., EPROM) for booting and program overlays - no external address latching required |
| ICE-Port™ emulator interface | 14-pin dedicated debug port supporting in-circuit emulation, breakpoint setting, and full-speed execution monitoring without target board modification |
| Flexible memory mapping | Composite Memory Select (CMS), Byte Memory Select (BMS), and I/O Memory Select (IOMS) enable "glueless" interfacing to mixed-speed peripherals |
Applications
| Audio Signal Processing | Telecom Line Interface |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in VoIP gateways and PBX systems. IC Role / Device Role / Timing Role: Primary DSP executing adaptive filtering algorithms with low-latency SPORT0/SPORT1 I/O and 16K data RAM for coefficient storage. Use Value: 75 MIPS sustained performance ensures sub-100 µs processing latency per 256-sample frame while maintaining full duplex operation. |
Use Scenario: Channelized T1/E1 framer and HDLC controller in access concentrators. IC Role / Device Role / Timing Role: System controller managing time-division multiplexed bitstreams via SPORT0 multichannel interface and timer-driven interrupt scheduling. Use Value: Dual SPORTs with independent framing and hardware companding reduce external codec count and simplify G.711 compliance. |
| Industrial Motor Control | Portable Medical Instrumentation |
|
Use Scenario: Closed-loop field-oriented control (FOC) of BLDC motors in HVAC and robotics drives. IC Role / Device Role / Timing Role: Real-time computation engine performing Park/Clarke transforms, PID loops, and PWM generation using ALU/MAC/shifter units in parallel. Use Value: Zero-overhead looping and single-cycle multiply-accumulate enable 20 kHz current loop execution with deterministic timing. |
Use Scenario: Portable ECG monitor with analog front-end digitization and real-time QRS detection. IC Role / Device Role / Timing Role: Low-power signal processor executing FIR filtering and peak detection algorithms in power-down/idle modes between samples. Use Value: 200-cycle power-down recovery and 2.5 V core supply allow >12-hour battery life with continuous 250 Hz sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microcomputer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2189MKSTZ-300 | Higher clock speed (75 MHz vs. 75 MIPS effective), identical architecture and pinout, but rated for 3.3 V I/O tolerance only | Requires level-shifting when interfacing with 2.5 V peripherals; lacks byte DMA boot capability in some revisions | Select when higher sustained throughput is needed and system voltage margin allows 3.3 V I/O operation |
| TMS320C549PGE | 16-bit fixed-point DSP with 100 MIPS, different instruction set, no on-chip program RAM, requires external ROM boot | Demands external memory interface design and assembler rework; lacks integrated SPORT companding and ICE-Port | Select when legacy C54x toolchain compatibility is mandatory and external memory cost is acceptable |
Compared with ADSP-2185MKSTZ-300, the ADSP-2189MKSTZ-300 offers higher clock frequency but reduced voltage flexibility, while the TMS320C549PGE requires external boot memory and lacks hardware companding - making ADSP-2185MKSTZ-300 optimal for compact, low-voltage, self-booting DSP systems.
Availability
ADSP-2185MKSTZ-300 is available at Aetrix Electronics and suitable for audio signal processing, telecom line interface, and industrial motor control applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.
Supply support for ADSP-2185MKSTZ-300 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-2185MKSTZ-300 belongs to the ADSP-2100 family of fixed-point DSP microcomputers designed for real-time embedded signal processing where deterministic latency, on-chip memory integration, and low-power operation are critical.
FAQ
What is the maximum operating frequency and instruction throughput of the ADSP-2185MKSTZ-300?
The ADSP-2185MKSTZ-300 operates with a 13.3 ns instruction cycle time at 2.5 V, delivering 75 million instructions per second (MIPS) sustained performance. Every instruction executes in a single cycle, including arithmetic, memory moves, and conditional branches - confirmed in the Analog Devices datasheet Rev. 0, Section "FEATURES" and "GENERAL DESCRIPTION". This throughput is achievable without pipeline stalls due to its 3-bus architecture and dual operand fetch capability.
Does the ADSP-2185MKSTZ-300 support booting from external memory, and if so, how?
Yes, the ADSP-2185MKSTZ-300 supports automatic booting from external byte-wide memory (e.g., EPROM) via its Byte DMA (BDMA) port. During reset, it loads the first 16K words of program memory from external byte memory addressed through D23:D16 (upper address bits) and D7:D0 (data), as specified in the "BOOTSTRAP LOADING" section of the datasheet Rev. 0, p.15. This eliminates need for external boot ROM controllers.
What are the key differences between Full Memory Mode and Host Mode on the ADSP-2185MKSTZ-300?
Full Memory Mode (Mode C = 0) configures ADSP-2185MKSTZ-300 for direct external memory expansion using A13:A0 and D23:D0 buses, supporting 4 MB addressing and I/O memory space. Host Mode (Mode C = 1) repurposes pins for a 16-bit multiplexed IDMA port (IAD15:IAD0) with dedicated control signals (IWR, IRD, IAL), enabling glueless connection to a host processor - both modes are selected at reset and cannot be changed dynamically.
Can the ADSP-2185MKSTZ-300's serial ports handle µ-law and A-law companding per G.711?
Yes, both SPORT0 and SPORT1 on the ADSP-2185MKSTZ-300 include hardware companding circuitry compliant with CCITT Recommendation G.711 for both µ-law and A-law encoding/decoding. This is implemented in the serial port logic and requires no CPU cycles - confirmed in the "Serial Ports" section (p.5) and "FEATURES" list of the datasheet Rev. 0, enabling direct interface to telephony codecs without external compander ICs.
Is the ADSP-2185MKSTZ-300 pin-compatible with other ADSP-218x family members?
The ADSP-2185MKSTZ-300 shares the same 100-lead LQFP package footprint and core pin assignments (e.g., RESET, CLKIN, SPORT0/1, PF pins) with ADSP-2181/2185/2189 variants, but functional pin behavior differs in Host Mode due to IDMA signal mapping. While mechanical mounting is identical, software and system-level compatibility require verification - the datasheet confirms shared package outline but notes mode-dependent pin multiplexing per "PIN DESCRIPTIONS" (p.5–8).
ADSP-2185MKSTZ-300 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 75MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 80kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 2.50V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2185MKSTZ-300 FAQ
1.How can I place an order for ADSP-2185MKSTZ-300 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2185MKSTZ-300 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADSP-2185MKSTZ-300 reliable?
The price and inventory of ADSP-2185MKSTZ-300 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2185MKSTZ-300 is usually 5 days.
3.What payment methods are accepted for ADSP-2185MKSTZ-300?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2185MKSTZ-300 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2185MKSTZ-300?
ADSP-2185MKSTZ-300 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2185MKSTZ-300 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADSP-2185MKSTZ-300?
For technical support, including ADSP-2185MKSTZ-300 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2185MKSTZ-300 requirements.
6.How does Aetrix verify that ADSP-2185MKSTZ-300 is sourced from the original manufacturer or authorized distributors?
All ADSP-2185MKSTZ-300 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADSP-2185MKSTZ-300 meets industry standards.
7.What is the process for return or replacement of ADSP-2185MKSTZ-300?
All ADSP-2185MKSTZ-300 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2185MKSTZ-300, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADSP-2185MKSTZ-300 part is unused and in its original packaging.
Return procedure for ADSP-2185MKSTZ-300:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADSP-2185MKSTZ-300 Tags
-
TMS320C5535AZAY10
Texas Instruments
-
TMS320VC5501PGF300
Texas Instruments
-
ADSP-BF592KCPZ
Analog Devices Inc.
-
ADAU1463WBCPZ150
Analog Devices Inc.
-
TMS320VC5402PGE100
Texas Instruments
-
ADAU1701JSTZ-RL
Analog Devices Inc.
-
ADAU1701JSTZ
Analog Devices Inc.
-
TMS320VC5502PGF300
Texas Instruments
-
ADAU1462WBCPZ300RL
Analog Devices Inc.
-
ADAU1452KCPZRL
Analog Devices Inc.
-
ADAU1452WBCPZ-RL
Analog Devices Inc.
-
TMS320C6747DZKB3
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
