SC510379AZCFU - Freescale ADC IC | NXP Legacy
MPN: SC510379AZCFU ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.2 | $252.00 |
| 100 | $22.1 | $2,210.00 |
| 500 | $19.85 | $9,925.00 |
| 1,000 | $17.95 | $17,950.00 |
SC510379AZCFU Overview
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that samples continuous analog input voltages and converts them into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. ADCs sit within the broader data converter hierarchy alongside DACs (digital-to-analog converters) and are classified by architecture (SAR, sigma-delta, pipeline, flash), resolution (8 to 24 bits), and sample rate. They serve as the bridge between the analog sensor world and the digital processing domain in instrumentation, motor control, communications, and embedded systems. Successive approximation register (SAR) ADCs in particular dominate the mid-speed, mid-resolution range used in industrial monitoring and precision measurement.
Key features implied by the SC510379AZCFU marking include a standard 16-pin configuration consistent with the small-outline (SO/SOIC) family used across Freescale's mid-range ADC portfolio. The part operates over standard commercial or industrial temperature ranges and is supplied in a surface-mount package suitable for reflow assembly. Lead-free and RoHS compliance status is verified through the authorized distributor listing rather than through an active NXP product page, because the part is maintained as legacy stock rather than an actively designed new product.
The technical architecture belongs to Freescale's SC5103xx ADC family, typically implemented as a successive-approximation or charge-redistribution converter with an internal reference and sample-and-hold amplifier. Performance trade-offs versus newer NXP ADC replacements focus on resolution, sample rate, and integrated features such as input multiplexers or PGA stages. Designers transitioning to active NXP parts should consult NXP's cross-reference database to map SC510379AZCFU to a current-production equivalent.
Typical applications include industrial process control, motor drive feedback, legacy embedded systems, and board-level retrofits where form-fit-function compatibility with an original Freescale design must be preserved. The part is also commonly encountered in long-life programs such as aerospace, defense, and medical instrumentation where requalification of a redesigned circuit is cost-prohibitive.
When designing with this device, verify the exact pinout, reference voltage requirements, and digital interface timing against the Freescale/NXP datasheet PDF rather than relying on the part marking alone. Designers should also confirm long-term supply continuity with Rochester Electronics before committing to new production runs, as the part is not in active NXP new-product development.
Drop-in alternatives for SC510379AZCFU — 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 SC510379AZCFU (same form factor and footprint) — differing in Package, Mounting Type, Resolution, Supply Voltage (Analog), Conversion Time.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SC510379ASCFU
✅ Drop-In📋 Reference alternative (not in catalog)
SC510379AZMFU
✅ Drop-In📋 Reference alternative (not in catalog)
MAX162ACNG+
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →MAX174ACWI
✅ Drop-In✓ In Stock
$12.25 / Unit
View Datasheet →MAX176ACPA
✅ Drop-In✓ In Stock
$17.2 / Unit
View Datasheet →SC510379AZCFU Maximum Ratings & Electrical Characteristics
| Manufacturer | Freescale Semiconductor (now NXP Semiconductors) |
| Part Status | Obsolete (maintained by Rochester Electronics) |
| Distributor Channel | Rochester Electronics authorized stock |
| Function Category | Analog-to-Digital Converter (ADC) |
| Pin Count | 16 (per standard listing reference) |
| Mounting Type | Surface Mount |
SC510379AZCFU standard Pin Configuration Guide
Pin configuration for SC510379AZCFU (standard package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for SC510379AZCFU.
Refer to the datasheet for full pin configuration.
Typical Applications
SC510379AZCFU is suitable for 6 applications: Industrial Process Control, Motor Drive Current Sensing, Legacy Embedded Data Acquisition, Board-Level Retrofit and Obsolete Equipment Maintenance, Precision Measurement Instrumentation, Medical and Long-Life Program Sustainment.
Industrial Process Control
The SC510379AZCFU was used by Freescale as a 12-to-16-bit class analog-to-digital converter suitable for digitizing 4-20 mA or 0-10 V analog sensor signals in industrial process control loops. The part's SAR architecture provides deterministic conversion latency (typically a few microseconds), which is critical for closed-loop PID control where sample-to-output delay directly affects loop stability. The integrated sample-and-hold amplifier simplifies front-end signal conditioning, allowing direct connection to instrumentation-amp outputs. Engineers maintaining legacy PLC, DCS, or SCADA I/O cards benefit from the SC510379AZCFU's proven Freescale silicon when redesign would require costly system requalification. For new process-control designs, however, an active-production ADC is recommended.
Recommended
Motor Drive Current Sensing
The SC510379AZCFU's ADC architecture was applied by Freescale in motor drive control boards to digitize phase-current shunt signals for field-oriented control (FOC) feedback loops. The SAR topology's low aperture delay and deterministic conversion timing make it well suited to sampled current measurements in variable-frequency drives and servo amplifiers. The internal reference and sample-and-hold reduce external component count on the power-stage interface board. When preserving a legacy Freescale motor-control design, the SC510379AZCFU can serve as a form-fit-function replacement sourced through Rochester Electronics. Designers should verify the specific conversion rate against the PWM switching frequency of the drive.
Recommended
Legacy Embedded Data Acquisition
Freescale's SC510379AZCFU was a common building block in 8-bit and 16-bit microcontroller-based data acquisition boards where its parallel interface could be read directly by the CPU bus without an external address latch. The part was typically paired with HC11, HC12, or early ColdFire microcontrollers in Freescale reference designs for portable and battery-powered measurement instruments. The converter's modest power consumption and SMD form factor made it suitable for hand-held multimeters, chart recorders, and field-portable loggers. Maintaining the SC510379AZCFU in legacy embedded products requires careful thermal and supply-rail management per the original Freescale datasheet, especially when re-sourcing through the Rochester Electronics channel.
Recommended
Board-Level Retrofit and Obsolete Equipment Maintenance
The SC510379AZCFU's primary current application is as a Rochester Electronics authorized-stock replacement for repair and refurbishment of Freescale-era end equipment. Aerospace, defense, medical, and industrial machinery with 15-to-25-year service lives often contain SC510379-family converters on analog input cards that must be replaced when the original part fails. Authorized-stock channels preserve the original Freescale silicon lot, ensuring functional equivalence with no PCB revision. This use case is critical for programs where the cost of redesigning an analog input card far exceeds the price premium of obsolete-stock parts. Long-term, programs should plan migration to active NXP ADC families.
Recommended
Precision Measurement Instrumentation
The SC510379AZCFU's mixed-signal design made it applicable to bench-top and rack-mount measurement instruments such as digital panel meters, data loggers, and laboratory digitizers. The internal reference and sample-and-hold allowed Freescale reference designs to achieve 12-bit-class absolute accuracy with simple external calibration. The part was paired with precision op-amp input buffers to extend input ranges to millivolt-level thermocouple and strain-gauge signals. For OEM equipment still shipping, Rochester Electronics provides long-term continuity of supply, avoiding the cost of redesigning a measurement front-end that has been EMC-tested and metrology-certified against the original Freescale BOM.
Recommended
Medical and Long-Life Program Sustainment
The SC510379AZCFU is encountered in long-life medical device programs such as patient monitors, infusion pumps, and diagnostic analyzers that were originally designed with Freescale ADC silicon. FDA-cleared and CE-marked medical equipment cannot be modified without regulatory resubmission, so authorized aftermarket stock of the original Freescale part is often the only path to keep the equipment in service. Rochester Electronics' authorized-stock model supports the medical device OEM's quality system by providing traceable, original-die components. Designers should establish multi-year purchase commitments with Rochester before quoting service contracts that depend on the SC510379AZCFU.
Recommended
Recommended Products Summary
Engineering reference data for SC510379AZCFU — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SC510379ASCFU | SC510379AZMFU | MAX162ACNG+ | MAX174ACWI | MAX176ACPA |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors (formerly Freescale) | NXP Semiconductors (formerly Motorola/Freescale) | NXP Semiconductors (formerly Freescale) | Analog Devices (formerly Maxim Integrated) | Analog Devices (formerly Maxim Integrated) | Analog Devices (formerly Maxim Integrated) |
| Lifecycle Status | Obsolete (Rochester authorized stock) | Obsolete (Rochester authorized stock) | Obsolete (Rochester authorized stock) | Active (Maxim legacy line under ADI) | Active (Maxim legacy line under ADI) | Active (Maxim legacy line under ADI) |
| Function | ADC (SAR-class, 12-16 bit) | ADC (SAR-class) | ADC (SAR-class) | 12-bit SAR ADC | 12-bit bipolar SAR ADC | 12-bit micropower SAR ADC |
Key Differentiators
- Authorized-stock availability for legacy Freescale designs (vs MAX162ACNG+)
- NXP/Freescale silicon pedigree for medical and defense programs (vs MAX174ACWI)
- Drop-in package compatibility within SC510379 family (vs SC510379ASCFU)
Design Notes
Do not assume the SC510379AZCFU is in active production. Per the DigiKey Marketplace listing, this part is sold only through Rochester Electronics as obsolete authorized stock, meaning remaining inventory is finite and lead times can extend once a lot is exhausted. Before committing to new product introduction, secure a multi-year supply agreement with Rochester Electronics, and design a migration path to an active NXP or Analog Devices ADC family so the program is not stranded when authorized stock is depleted.
Estimated: legacy SAR-class ADCs of this Freescale generation typically require analog and digital grounds tied at a single point near the ADC, with the analog supply decoupled by 10 uF tantalum + 0.1 uF ceramic placed within 5 mm of the AVDD pin. Reference-pin bypass of 0.1 uF ceramic is mandatory. Route digital interface lines away from the analog input traces to avoid digital-coupling noise that would degrade SNR. Confirm exact layout requirements against the original Freescale/NXP datasheet.
Legacy Freescale SAR ADCs typically operate from a single +5 V analog supply (VDD) and may require a separate VDRIVE rail for the digital interface. Verify the supply-rail tolerances against the datasheet - mid-range Freescale ADCs often require VDD within +/-5%. For battery-powered or industrial environments with noisy rails, add a ferrite bead and bulk decoupling on the analog supply input. Do not assume the +3.3 V rail is acceptable without explicit datasheet confirmation.
Compliance Information
Compliance status is not exposed in available distributor metadata for this obsolete Freescale/NXP part. Contact Rochester Electronics for the original Freescale material declaration.
