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Analog Devices Inc. ADMCF328BR-REEL
- Part No.:
- ADMCF328BR-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADMCF328BR-REEL.pdf
- Description:
- IC DSP FLASH MOTOR CTRLR 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:666
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Product details
Overview
ADMCF328BR-REEL from Analog Devices is a 28-lead SOIC-packaged, fixed-point DSP motor controller integrating a 20 MIPS ADSP-2171 core, 4K×24-bit flash memory, 12-bit ADC with dedicated ISENSE input, and three-phase 16-bit center-based PWM generator. It delivers synchronized current sensing, programmable dead time (50 ns edge resolution), and hardware-based overcurrent shutdown via PWMTRIP for brushless DC and PMSM drives in washing machines and refrigerator compressors.
For engineers reviewing the ADMCF328BR-REEL datasheet, ADMCF328BR-REEL pinout, ADMCF328BR-REEL application, or ADMCF328BR-REEL equivalent, this page provides verified technical context, real-world motor control specifications, validated pin functions, confirmed alternative parts for PMSM/BDCM systems, and supply-chain support details specific to the ADMCF328BR-REEL variant.
Technical Context
The ADMCF328BR-REEL implements an ADSP-2171-based architecture with three independent computational units (ALU, MAC, shifter), two data address generators (DAG1/DAG2), and zero-overhead looping-enabling simultaneous 50 ns instruction execution, three-phase PWM waveform generation, and four-channel analog acquisition synchronized to switching frequency. Its memory subsystem includes 4K×24-bit flash (three programmable sectors), 512×24-bit program RAM, and 512×16-bit data RAM.
Motor-specific peripherals include a dedicated ISENSE amplifier-trip circuit (–5.1× gain, –0.57 V trip threshold), internal 2.5 V reference (±50 mV, 35 ppm/°C drift), and 9-bit digital I/O port (PIO0–PIO8) with change-of-state interrupt support. The device supports UART-emulated serial communication via SPORT1 with double-buffered transmit/receive and hardware companding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Performance | 20 MIPS fixed-point DSP (ADSP-2171), single-cycle 50 ns instruction execution at 10 MHz CLKIN |
| PWM Resolution & Timing | 16-bit center-based three-phase PWM with 50 ns edge resolution and programmable dead time |
| ADC System | 12-bit resolution (at 4.9 kHz sampling), five analog inputs + dedicated ISENSE channel, acquisition synchronized to PWM frequency |
| Voltage Reference | 2.50 V ±50 mV internal reference with 35 ppm/°C drift over –40°C to +85°C |
| Flash Memory | 4K × 24-bit user-programmable flash with 10,000 erase/program cycles and 15-year data retention |
| ISENSE Trip Threshold | –0.57 V typical trip voltage with ±130 mV tolerance, enabling fast hardware overcurrent shutdown |
| Operating Temperature | –40°C to +85°C ambient range, qualified for industrial motor control environments |
Pinout & Package
ADMCF328BR-REEL is housed in a 28-lead wide-body SOIC package (SO-28) with 0.600-inch body width and standard JEDEC MS-013AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PIO6/CLKOUT) | Digital I/O or clock output | Configurable as general-purpose I/O or 20 MHz system clock output for timing synchronization |
| 11 (PWMTRIP) | Hardware fault input | Asynchronous active-low signal triggering immediate three-phase PWM disable for overcurrent protection |
| 12 (ISENSE) | Current sense amplifier input | Dedicated high-gain (–5.1×) differential input for shunt-based motor phase current monitoring |
| 21–26 (AH/AL, BH/BL, CH/CL) | Three-phase PWM outputs | Complementary high-side/low-side gate drive signals with programmable dead-time insertion |
| 27–28 (PIO7/AUX1, PIO8/AUX0) | Auxiliary PWM outputs | Two 8-bit auxiliary timers supporting synthesized analog output or auxiliary control functions |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ISENSE amplifier-trip | On-chip current sensing with –5.1× gain and hardware-triggered PWM shutdown eliminates external comparator need |
| Three-phase PWM generator | 16-bit center-aligned outputs with 50 ns edge resolution and narrow pulse deletion prevent shoot-through in inverter bridges |
| Flash memory security | Boot-from-flash code lock bit prevents unauthorized readout or reprogramming of user firmware in production units |
| Sports-enabled serial interface | Double-buffered SPORT1 with UART emulation and hardware A-law/μ-law companding reduces host MCU overhead in multi-device systems |
| Power-on reset & watchdog | Integrated POR with 3.2 ms timeout and 16-bit programmable watchdog timer ensure deterministic startup and runtime fault recovery |
Applications
| Washing Machine Drive | Refrigerator Compressor Control |
|---|---|
|
Use Scenario: Variable-speed direct-drive drum motor with field-oriented control (FOC) requiring precise torque regulation during spin and wash cycles. IC Role / Device Role / Timing Role: Primary motor controller executing FOC algorithm, generating synchronized PWM and acquiring phase currents via ISENSE. Use Value: Integrated 12-bit ADC + ISENSE amplifier enables <1% current measurement error at 4.9 kHz sampling, critical for low-speed torque ripple reduction. |
Use Scenario: Hermetic compressor with permanent magnet synchronous motor operating across wide load and temperature ranges. IC Role / Device Role / Timing Role: Real-time motor controller managing startup sequencing, overload protection, and thermal derating using on-chip voltage reference and trip logic. Use Value: –0.57 V ISENSE trip threshold with 600 ns comparator delay ensures <1 µs response to winding overcurrent, preventing IGBT failure during stall conditions. |
| Fan Speed Regulation | Industrial Pump Drive |
|
Use Scenario: High-efficiency axial fan in HVAC systems requiring quiet operation and rapid speed transitions. IC Role / Device Role / Timing Role: Dedicated motor controller handling sensorless BEMF commutation, PWM modulation, and acoustic noise optimization. Use Value: Programmable 150 Hz minimum switching frequency avoids audible resonance while maintaining 16-bit PWM resolution for smooth speed ramping. |
Use Scenario: Constant-pressure centrifugal pump in building automation with dynamic flow demand and dry-run protection. IC Role / Device Role / Timing Role: Embedded controller performing PID pressure loop, motor phase current monitoring, and fault logging to flash memory. Use Value: 4K×24-bit flash with 10,000 endurance cycles stores calibration data and event logs across 15+ years of field operation without external EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADMC301JSTZ-REEL | Same ADSP-21xx core but lacks integrated flash memory; requires external program memory | Used in cost-sensitive designs where firmware is loaded externally or updated frequently | Select when flash persistence is unnecessary and board space allows external memory |
| TMS320F28027PTT | 32-bit C28x CPU, 60 MHz, 32 KB flash, no integrated ISENSE amplifier or dedicated trip logic | Requires external current sense amplifiers and discrete fault management circuitry | Select when higher computational throughput is needed and system-level fault handling is already implemented |
Compared with ADMCF328BR-REEL, ADMC301JSTZ-REEL trades non-volatile program storage for lower BOM count in prototyping, while TMS320F28027PTT offers greater processing headroom at the cost of added external components for current protection and calibration storage.
Availability
ADMCF328BR-REEL is available at Aetrix Electronics and suitable for washing machine drives, refrigerator compressor controls, and industrial variable-speed pump applications requiring stable component supply across extended product lifecycles.
Supply support for ADMCF328BR-REEL 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 is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control systems.
The ADMCF328BR-REEL belongs to the ADMCxxx family of DSP motor controllers designed specifically for cost-effective, single-chip implementation of permanent magnet synchronous and brushless DC motor drives in white goods and industrial equipment.
FAQ
What is the primary function of the ISENSE pin on the ADMCF328BR-REEL?
The ISENSE pin on the ADMCF328BR-REEL serves as the dedicated input to an integrated current-sense amplifier with –5.1× gain and hardware-triggered trip logic. When connected to a shunt resistor, it enables direct phase current monitoring and automatic three-phase PWM shutdown if the sensed voltage exceeds –0.57 V. This eliminates external comparators and reduces fault response time to under 1 µs in the ADMCF328BR-REEL.
Does the ADMCF328BR-REEL support booting directly from its internal flash memory?
Yes, the ADMCF328BR-REEL supports boot-from-flash operation via a configurable security lock bit. When enabled, the device executes code starting at address 0x2200 in flash memory upon power-up or reset-bypassing the internal ROM monitor. This feature is used in production units to protect firmware IP; clearing the lock requires calling flash_init from within the user program running on the ADMCF328BR-REEL.
What are the key timing constraints for the PWMTRIP signal on the ADMCF328BR-REEL?
The PWMTRIP signal on the ADMCF328BR-REEL must be held low for at least one CLKIN cycle (tPWMTPW = tCK) to trigger immediate, asynchronous disable of all six PWM outputs. The signal is sampled asynchronously relative to the processor clock, ensuring sub-cycle fault response. No setup/hold timing is required relative to CLKIN, making it suitable for direct connection to external overcurrent comparators in the ADMCF328BR-REEL.
How does the ADMCF328BR-REEL handle analog-to-digital conversion synchronization with PWM switching?
The ADMCF328BR-REEL synchronizes ADC sampling to the PWM switching frequency using internal hardware triggers-ensuring acquisition occurs at consistent points within each PWM period (e.g., center-aligned or edge-aligned). This eliminates software timing jitter and enables accurate current reconstruction for field-oriented control. The 12-bit resolution is maintained at 4.9 kHz sampling, directly tied to the ADMCF328BR-REEL's PWM update rate.
What package type and lead count does the ADMCF328BR-REEL use?
The ADMCF328BR-REEL uses a 28-lead wide-body SOIC package (SO-28, JEDEC MS-013AC) with 0.600-inch body width and standard 0.050-inch lead pitch. This package is pin-compatible with the PDIP variant (ADMCF328BN) and supports surface-mount assembly for high-volume motor control PCBs. The ADMCF328BR-REEL's pinout includes multiplexed functions such as PIO6/CLKOUT and PIO5/RFS1, configured via internal registers.
ADMCF328BR-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Motor Control
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Synchronous Serial Port (SSP)
- Clock Rate:
- 20MHz
- Non-Volatile Memory:
- FLASH (12kB), ROM (12kB)
- On-Chip RAM:
- 2.5kB
- Voltage - I/O:
- 5.00V
- Voltage - Core:
- 5.00V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
ADMCF328BR-REEL FAQ
1.How can I place an order for ADMCF328BR-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADMCF328BR-REEL 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 ADMCF328BR-REEL reliable?
The price and inventory of ADMCF328BR-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADMCF328BR-REEL is usually 5 days.
3.What payment methods are accepted for ADMCF328BR-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADMCF328BR-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADMCF328BR-REEL?
ADMCF328BR-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADMCF328BR-REEL 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 ADMCF328BR-REEL?
For technical support, including ADMCF328BR-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADMCF328BR-REEL requirements.
6.How does Aetrix verify that ADMCF328BR-REEL is sourced from the original manufacturer or authorized distributors?
All ADMCF328BR-REEL 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 ADMCF328BR-REEL meets industry standards.
7.What is the process for return or replacement of ADMCF328BR-REEL?
All ADMCF328BR-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADMCF328BR-REEL, 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 ADMCF328BR-REEL part is unused and in its original packaging.
Return procedure for ADMCF328BR-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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