MCF51AG96VQH - 32-bit 50MHz 96KB Flash MCU | NXP
MPN: MCF51AG96VQH ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.8312 | $6.83 |
| 10 | $6.8312 | $68.31 |
| 100 | $6.8312 | $683.12 |
| 500 | $6.8312 | $3,415.60 |
| 1,000 | $6.8312 | $6,831.20 |
MCF51AG96VQH Overview
A 32-bit microcontroller integrates a processor core, memory, communication peripherals, timers, and general-purpose I/O into one embedded control device. The ColdFire architecture uses a variable-length RISC instruction set, while the 50 MHz core provides the processing performance stated in the verified product data. This device is suited to systems that need more control capability than an 8-bit MCU without moving to a higher-complexity processor architecture.
The verified specifications identify 96 KB of flash memory organized as 96K x 8, 16 KB of SRAM, 53 I/O pins, and connectivity including I2C, SCI, SPI, DMA, PWM, a watchdog timer, and low-voltage detection. Its operating supply is described as 3 V in distributor data, with another source identifying the device as a 3.3 V part. The exact manufacturer operating-temperature limits, pin-level multiplexing, memory map, and electrical limits are not present in the supplied verified data and are therefore not inferred here.
Typical embedded uses include motor and actuator control, industrial interfaces, sensor acquisition, communications gateways, and compact control systems that benefit from flash-resident firmware and multiple serial interfaces. The 64-QFP package provides a conventional leaded surface-mount footprint for external memory, interface routing, signal conditioning, and power distribution.
When designing around the MCF51AG96VQH, verify the exact pin multiplexing, clock configuration, reset behavior, supply limits, and peripheral electrical conditions against the manufacturer datasheet before layout release. Because the retrieved data identifies the part as obsolete in one datasheet listing, lifecycle planning should include confirmation of supply status and a qualified sourcing review.
Drop-in alternatives for MCF51AG96VQH — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF51AG96VQH (same form factor and footprint) — differing in Package, Connectivity, Peripherals, Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF51AG128CLF
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Contact for price
View Datasheet →MCF51AC256AVPUE
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →MCF51AG96VQH
✅ Drop-In✓ In Stock
$6.8312 / Unit
View Datasheet →MCF51AG96VQH Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit microcontroller |
| Core | ColdFire V1 |
| Processor Architecture | Variable-length reduced instruction set computer (RISC) |
| Maximum Core Speed | 50 MHz |
| Flash Memory | 96 KB (96K x 8) |
| SRAM | 16 KB |
| Operating Supply | 3 V |
| Number of I/O | 53 pins |
| Connectivity | I2C, SCI, SPI |
| Peripherals | DMA, PWM, low-voltage detection, watchdog timer |
| Package | 64-QFP (14 x 14 mm) |
| Manufacturer | NXP USA Inc. |
| Lifecycle Status | Obsolete |
| Application Category | Embedded control |
| Flash Organization | 96K x 8 |
| Core Frequency | 50 MHz |
| Mounting Type | Surface mount |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
| Lead-Free Status | unknown |
MCF51AG96VQH 64-qfp (14 x 14 mm) Pin Configuration Guide
Pin configuration for MCF51AG96VQH (64-qfp (14 x 14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MCF51AG96VQH.
Refer to the datasheet for full pin configuration.
Typical Applications
MCF51AG96VQH is suitable for 8 applications: Industrial Sensor Acquisition, Motor and Actuator Control, Communications Gateway, Consumer Device Controller, Data Logger and Recorder, Embedded Security and Access Controller, Low-Power Embedded Control, Legacy Control-System Maintenance.
Industrial Sensor Acquisition
The MCF51AG96VQH fits sensor-acquisition and monitoring platforms that need a 32-bit control loop without the memory footprint of a larger embedded processor. Its 96 KB of flash can hold application firmware, while 16 KB of SRAM supports working buffers and protocol state. I2C and SPI connectivity, DMA, PWM, watchdog timing, and low-voltage detection provide useful building blocks for connected sensor nodes. The 50 MHz core also leaves headroom for filtering and control logic. However, the supplied data does not state the full pin multiplex, ADC resources, temperature range, or timing limits, so the final design should verify those details in the manufacturer datasheet before committing the PCB.
Recommended
Motor and Actuator Control
The MCF51AG96VQH is appropriate for compact motor-control and actuator-management systems where PWM, DMA, watchdog supervision, and low-voltage detection are useful. The 50 MHz ColdFire V1 core can execute timing-critical control tasks, while 96 KB of flash provides room for sequencing, protection, and diagnostic firmware. A typical architecture would use PWM outputs for actuator drive and serial interfaces for sensors or a host controller. The verified data does not specify motor-driver outputs, electrical limits, or pin availability, so external driver stages, protection components, and timing margins must be designed around the complete datasheet and application requirements.
Recommended
Communications Gateway
The MCF51AG96VQH can serve as a low-to-medium complexity communications gateway for embedded equipment because it combines SCI, SPI, and I2C interfaces with DMA and a 50 MHz processor core. Those resources can support sensor aggregation, local protocol conversion, and host-device buffering while 96 KB of flash stores application firmware. The 16 KB of SRAM is suitable for protocol state and packet buffers, but actual throughput depends on clock configuration, pin multiplexing, DMA channels, and electrical interface characteristics. Those detailed constraints are not included in the supplied verified sources and must be confirmed against the manufacturer datasheet and system timing budget.
Recommended
Consumer Device Controller
The MCF51AG96VQH is usable in a compact consumer accessory or appliance controller when the product requires more than basic 8-bit control and benefits from a 32-bit instruction set. Its 96 KB flash and 16 KB SRAM support embedded firmware, state machines, interface handlers, and product diagnostics, while I2C and SPI can connect sensors, displays, or external controllers. PWM and watchdog functions support timing and safety-related behavior. Because the MCU is reported obsolete and the supplied data lacks detailed operating-temperature and lifecycle commitments, manufacturers should evaluate long-term supply, software maintenance, and migration planning before new consumer-volume production.
Recommended
Data Logger and Recorder
The MCF51AG96VQH can be used in a small embedded data logger when data acquisition, local control, and nonvolatile firmware storage must share one microcontroller. Its 96 KB of flash is suitable for compact firmware, while DMA can reduce processor involvement during data transfer and watchdog monitoring supports unattended operation. I2C and SPI are useful for sensors, storage devices, or external radios. The amount of application data that can be buffered depends on the 16 KB SRAM and the selected storage architecture, while write endurance and timing are not specified in the supplied sources. Those constraints require validation in the system-level design.
Recommended
Embedded Security and Access Controller
The MCF51AG96VQH can support a legacy embedded access-control or security-related controller when the product depends on deterministic embedded behavior and multiple serial interfaces. SCI, SPI, and I2C provide paths to readers, sensors, or communication modules, while watchdog and low-voltage-detection functions can assist system supervision. The 32-bit ColdFire core provides more instruction and data-handling capability than a basic 8-bit controller, and 96 KB of flash provides room for protocol and policy code. The supplied data does not state cryptographic hardware, security certification, radiation tolerance, or operating-temperature limits, so this part should not be treated as a certified security solution without additional verification.
Recommended
Low-Power Embedded Control
The MCF51AG96VQH can be evaluated for low-power embedded control systems that need a 32-bit core and on-chip flash while retaining a simple external implementation. The 3 V supply identified in the verified data and the presence of low-voltage detection can support battery or distributed power architectures, although no sleep currents or active current figures are supplied. Its 50 MHz core, 96 KB flash, and 16 KB SRAM provide a balanced control resource envelope for embedded products. Before selecting it, verify power-mode behavior, startup time, I/O leakage, clock sources, and temperature performance from the manufacturer documentation; those values are intentionally not guessed here.
Recommended
Legacy Control-System Maintenance
The MCF51AG96VQH is most relevant to organizations maintaining an existing MCF51AG-based product or board that already depends on its software and peripheral configuration. The 50 MHz ColdFire V1 core, 96 KB flash, 16 KB SRAM, and listed connectivity provide a recognizable target for firmware repair, production recovery, and controlled redesigns. Because the supplied data marks the part obsolete in one source, maintenance teams should inventory remaining stock, verify exact board revisions and package markings, and preserve a migration path. A family-related MCU may simplify software work, but it should not be treated as a drop-in replacement without pin and memory-map verification.
Recommended
Recommended Products Summary
Engineering reference data for MCF51AG96VQH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF51AG128CLF | MCF51AC256AVPUE | MCF51AG96VQH |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ColdFire V1 | ColdFire family; exact core not stated in supplied data | ColdFire family; exact core not stated in supplied data | ColdFire V1 |
| Flash Memory | 96 KB | 128 KB | 256 KB | 96 KB |
Key Differentiators
- Verified 96 KB flash configuration (vs MCF51AC256AVPUE)
- Known 50 MHz ColdFire V1 operating point (vs MCF51AG128CLF)
- 16 KB SRAM and 53 I/O (vs MCF51AC256AVPUE)
Design Notes
The verified package is 64-QFP in a 14 x 14 mm outline, but the supplied data does not include the manufacturer land pattern or pin table. Before PCB release, verify pad dimensions, pin numbering, pin-1 orientation, and exposed thermal or mechanical features against the official package drawing. Do not derive a footprint from a distributor thumbnail or from the similar MCF51 family without confirmation.
The supplied sources identify a 3 V operating-supply value, but they do not provide the complete absolute maximum voltage, I/O voltage tolerance, or current limits. Confirm supply sequencing and I/O levels before connecting external modules. The listed low-voltage-detection feature can support system supervision, but its thresholds and timing must be taken from the manufacturer datasheet rather than inferred.
Place decoupling capacitors close to the supply and ground pins, and route high-current and sensitive signals away from switching nodes and long peripheral traces. Because the verified data does not specify pin multiplexing or electrical characteristics, the schematic and layout should be checked against the exact 64-QFP pin assignment. Keep debug or programming access reachable if the product requires field maintenance or firmware recovery.
Do not treat the obsolete designation as proof that every board revision uses identical silicon or that a related MCF51 part is a drop-in replacement. Confirm the package marking, memory size, pinout, clock configuration, peripheral mapping, and software model. For legacy maintenance, preserve the original firmware toolchain and create a tested migration plan before changing the MCU.
Compliance Information
The supplied verified data does not include RoHS, REACH, halogen-free, lead-free, conflict-minerals, or automotive qualification declarations. The obsolete status is reported by a datasheet source but does not establish any compliance result.
