MC9S12DT128VPVE - 16-bit HCS12 MCU 128KB Flash LQFP-112 | NXP
MPN: MC9S12DT128VPVE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.85 | $14.85 |
| 10 | $13.36 | $133.60 |
| 100 | $11.88 | $1,188.00 |
| 500 | $10.4 | $5,200.00 |
| 1,000 | $9.21 | $9,210.00 |
MC9S12DT128VPVE Overview
A 16-bit microcontroller unit (MCU) integrates a processor core, program memory, data memory, and peripherals on a single chip, sitting within the broader hierarchy of semiconductor devices as an embedded processor within the microcontroller family. The HCS12 (S12) architecture is an enhanced evolution of the classic 68HC12 CISC core, widely deployed in automotive body electronics, industrial control, and multiplexed networking nodes where CAN and serial connectivity are required.
Key features of the MC9S12DT128 include two asynchronous serial communications interfaces (SCI), an 8-channel input capture/output capture enhanced capture timer, two 8-channel 10-bit analog-to-digital converters (ADC), an 8-channel pulse-width modulator (PWM), discrete digital I/O lines, and an Inter-IC Bus (IIC). The DT variant of the S12D family provides 128KB of flash program memory with in-system programmability for field updates.
Architecturally, the S12 core uses system resource mapping, clock generation, interrupt control, and bus interfacing modules designed for automotive multiplexing applications. Members of the MC9S12D family are fully pin compatible, enabling designers to scale memory and peripheral options without PCB redesign. The VPVE temperature/voltage grade suffix targets extended industrial operating ranges with 5V supply operation.
Typical applications include automotive body control modules, dashboard clusters, gateways on CAN networks, industrial motor control panels, and building automation controllers. The rich peripheral set (dual ADC, PWM, SCI, CAN) makes it a single-chip solution for sensor acquisition and actuator drive.
When designing with this device, verify bus clock configuration against the crystal or PLL reference, and budget the 91 I/O lines for multiplexed pin functions since many pins are shared between ADC, timer, and communication peripherals. Note that NXP lists this part as NRND (Not Recommended for New Designs), so new projects should evaluate S12G or S12XE successors.
This page synthesizes distributor pricing, drop-in alternatives, comparison data, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for MC9S12DT128VPVE — 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 MC9S12DT128VPVE (same form factor and footprint) — differing in Core Architecture, ADC Channels, EEPROM, Operating Temperature, PWM Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12DT128MPVE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$36.5 / Unit
View Datasheet →MC9S12DT128CPVE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12DJ128VPVE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12DJ128MPVE
✅ Drop-In✓ In Stock
$19.25 / Unit
View Datasheet →MC9S12A256CPVE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12DT128VPVE Maximum Ratings & Electrical Characteristics
| Core Processor | HCS12 (S12) |
| Core Size | 16-Bit |
| Core Architecture | CISC |
| Maximum Clock Frequency | 25 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 128KB (128K x 8) |
| Supply Voltage | 2.35 V to 2.75 V (regulator input range per datasheet listing); 5V system operation |
| Number of I/O | 91 |
| Peripherals | SCI x2, Enhanced Capture Timer (8-ch IC/OC), PWM (8-ch), IIC |
| ADC Resolution | 10-bit |
| ADC Channels | 2 x 8-channel |
| Data Bus Width | 16 Bit |
| Package Type | 112-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Terminal Form | Gull Wing |
| Temperature Grade | Industrial |
| Lifecycle Status | NRND (Not Recommended for New Designs) |
MC9S12DT128VPVE 112-lqfp (20x20 mm) Pin Configuration Guide
Pin configuration for MC9S12DT128VPVE (112-lqfp (20x20 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 MC9S12DT128VPVE.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S12DT128VPVE is suitable for 6 applications: Automotive Body Control Modules, Automotive Instrument Clusters, CAN Network Gateways, Industrial Motor Control Panels, Building Automation Controllers, Legacy Embedded Systems Sustainment.
Automotive Body Control Modules
The MC9S12DT128VPVE was explicitly designed for automotive multiplexing applications, making it a natural fit for body control modules that consolidate lighting, wiper, door, and seat actuation. Its 91 I/O lines and 8-channel PWM directly drive lamps, relays, and motors, while the two 8-channel 10-bit ADCs digitize switch packs and analog sensor inputs such as coolant level and battery sense. The on-chip CAN-capable S12 platform links the module to the vehicle network, and 128KB flash holds the full application plus diagnostic firmware with room for in-system field updates. In legacy BCM programs already qualified on the S12DT, the pin-compatible DT/DJ family variants allow grade-level sourcing changes without PCB or firmware redesign.
Recommended
Automotive Instrument Clusters
Instrument cluster controllers need simultaneous stepper-motor pointer drive, backlight dimming, switch scanning, and network communication - a workload matched to the MC9S12DT128VPVE peripheral set. The 8-channel PWM handles backlight and indicator dimming with smooth gamma curves, the enhanced capture timer measures input pulses from speed sensors, and the dual 10-bit ADCs read fuel level and temperature senders with ratiometric accuracy. With 25 MHz bus capability, the 16-bit HCS12 core executes cluster logic and CAN/SCI message handling with adequate margin, while 128KB flash stores graphics lookup tables and odometer data retention routines. Pin compatibility across the S12D family lets cluster suppliers scale memory variants on one PCB platform.
Recommended
CAN Network Gateways
In-vehicle and industrial CAN gateways benefit from the MC9S12DT128VPVE's combination of serial connectivity, processing headroom, and extensive I/O for routing messages between subnets. The S12D platform integrates the MSCAN-class controller and Inter-IC Bus alongside two SCI ports, enabling bridge topologies between CAN segments and RS-232/RS-485 diagnostics links. The 91 I/O lines support wake-up signaling and discrete pass-through channels, and the 25 MHz 16-bit core performs message filtering, prioritization, and store-and-forward buffering within deterministic latency. Because members of the MC9S12D family are fully pin compatible, gateway designs can migrate between 128KB DT variants and larger flash siblings as message-table complexity grows without altering the PCB.
Recommended
Industrial Motor Control Panels
The MC9S12DT128VPVE suits industrial motor control panels that coordinate contactors, soft-start ramps, and protection feedback. The 8-channel PWM module generates drive signals for power stages or DC motor speed control, while the enhanced capture timer (8-channel IC/OC) timestamps encoder or Hall pulses for speed measurement. Its two 8-channel 10-bit ADCs sample current-shunt and bus-voltage signals for overload protection algorithms executing on the 25 MHz HCS12 core. The industrial temperature grade of the VPVE ordering code matches panel environments, and 128KB flash accommodates fault logs, fieldbus stacks, and configurable control profiles. NRND status confines new panel designs to this device only when extending an existing qualified S12DT platform.
Recommended
Building Automation Controllers
Building automation nodes such as HVAC zone controllers, damper actuators, and lighting sequencers map well onto the MC9S12DT128VPVE. The dual SCI interfaces communicate with displays and RS-485 field buses, the Inter-IC Bus manages RTC and EEPROM peripherals, and the 8-channel PWM drives damper motors and valve actuators with proportional control. The two 10-bit ADC converters digitize temperature, humidity, and pressure transmitters, while the large 91-line I/O array scans occupancy sensors and relay feedback. With 128KB flash, one controller image covers multiple product variants through configuration blocks. For projects modernizing S12DT-based building controllers, the pin-compatible S9S12 active successors preserve the software investment.
Recommended
Legacy Embedded Systems Sustainment
A primary ongoing use of the MC9S12DT128VPVE is sustaining fielded embedded systems - medical bench instruments, test fixtures, and industrial controllers - originally built on the S12DT platform. Because NXP lists the part as NRND rather than obsolete, repair depots and last-time-buy programs can still source genuine units through remaining distribution and authorized aftermarket channels such as Rochester Electronics. The fully pin-compatible S12D family (DT128, DJ128, A256 variants in the same 112-LQFP) enables like-for-like component replacement during board repair even when the exact VPVE grade is exhausted. Procurement teams should complete a lifetime-buy analysis now, as NRND parts transition to obsolete without guaranteed notice.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12DT128VPVE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12DT128MPVE | MC9S12DT128CPVE | MC9S12DJ128VPVE | MC9S12DJ128MPVE | MC9S12A256CPVE |
|---|---|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Architecture | HCS12 16-bit CISC | HCS12 16-bit CISC | HCS12 16-bit CISC | HCS12 16-bit CISC | HCS12 16-bit CISC | HCS12 16-bit CISC (S12A) |
| Flash Memory | 128KB | 128KB | 128KB | 128KB | 128KB | 256KB |
| Peripheral Set | 2x SCI, 8-ch EC timer, 2x 8-ch 10-bit ADC, 8-ch PWM, IIC | Same DT peripheral set | Same DT peripheral set | DJ peripheral set (differs) | DJ peripheral set (differs) | S12A peripheral set (differs) |
Key Differentiators
- 128KB flash with DT peripheral set (vs MC9S12DJ128VPVE)
- Zero-change legacy drop-in sourcing (vs S912XET512J2VAGR)
- Double the flash in the same footprint (vs MC9S12A256CPVE)
Design Notes
The MC9S12DT128VPVE is NRND on the official NXP product page, meaning it is not recommended for new designs and may transition to obsolete. Before committing the part to any new board, run a lifetime-buy or migration analysis - the active S9S12 (S12XE/S12G) family on XAIPART is the designated successor path. For existing designs, secure a qualified second source within the fully pin-compatible S12D family (DT128/DJ128 grade variants) so a single distributor stock-out does not halt production.
The 112-pin LQFP shares many pins between ADC inputs, timer channels, PWM outputs, and port I/O. Configure the pin multiplexing registers early in firmware development and document the final map, because ADC accuracy degrades if high-current PWM or switching loads share ground return paths near analog inputs. Keep the two 10-bit ADC reference inputs on a quiet supply rail and add local decoupling; the S12 family application notes recommend star-grounding the analog section separately from the power-driver section.
Ensure the 5V supply for the MCU meets the S12DT family input requirements and that the internal voltage regulator configuration matches your board design; the datasheet electrical characteristics chapter defines permitted external regulator capacitor ranges. Estimated: with 91 I/O lines, total current depends heavily on load - budget roughly 2 mA per actively driven CMOS output at moderate capacitive load when sizing the 5V rail, plus core and peripheral current, and verify against the datasheet IDD tables under your actual bus frequency.
Compliance Information
NXP product page lists an Environmental Quality section for this MPN, but RoHS/REACH/lead-free status values were not present in the retrieved data; verify on nxp.com/part/MC9S12DT128VPVE before procurement.
