MC9S12XDT256CAG - 16-bit HCS12X MCU, 256KB Flash, 144-LQFP | NXP
Teilenummer: MC9S12XDT256CAG ⚠ Letzte Bestellmöglichkeit| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $25.1 | $251,00 |
| 100 | $21.75 | $2.175,00 |
| 500 | $19.2 | $9.600,00 |
| 1.000 | $17.4 | $17.400,00 |
MC9S12XDT256CAG Übersicht
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and a rich set of peripherals such as timers, ADCs, communication controllers, and GPIO on a single die. The MC9S12XDT256CAG belongs to the S12XD family that delivers 32-bit-like performance while preserving the HCS12 instruction set for code reuse. As a derivative of the broader Freescale/NXP HCS12 lineage, it sits in the category: MCU -> microcontroller -> embedded processor -> semiconductor.
Key features include 256KB Flash, 16KB RAM, 4KB EEPROM, 119 I/O lines, 8/16-bit PWM, up to 8 timer channels, MSCAN (CAN 2.0A/B) controller, SCI/SPI serial interfaces, 16-channel 10-bit ADC, and a 5V-tolerant I/O. The XGATE co-processor offloads interrupt-driven tasks from the main CPU, effectively doubling throughput for I/O-bound automotive workloads. Internal Phase-Locked Loop (IPLL) generates the 80 MHz bus clock from an external 4-16 MHz crystal.
The architecture uses an enhanced 16-bit CISC core with 20-bit ALU extensions, instruction queue, and enhanced indexed addressing. XGATE is an independent RISC-style peripheral co-processor that runs concurrent to the CPU and is ideal for processing CAN, LIN, and SPI traffic in real time. The device operates from a single 2.5V core / 5V I/O supply pair, simplifying automotive 12V rail design.
Typical applications include automotive body controllers (BCM), gateway modules, instrument clusters, HVAC control, door modules, seat controllers, and industrial CAN-node controllers. The 5V I/O tolerance and on-chip MSCAN make it ideal for any 12V-board automotive multiplexing network.
When designing, pay attention to decoupling: place 100nF ceramic + 4.7uF bulk on VDDR/VSS, plus 10uF on VDDX/VSSX. Use NXP's BDM (Background Debug Mode) interface via the BKGD pin for in-circuit programming. The PLL reference loop filter (XFC pin) capacitor selection is critical for jitter performance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in-Alternativen für MC9S12XDT256CAG – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit MC9S12XDT256CAG (gleiche Bauform und Footprint) – abweichend in Package, Core Processor, Supply Voltage, Operating Temperature, Connectivity.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
MC9S12XDT256CAGR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC9S12XDT256MAG
✅ Drop-In✓ Auf Lager
$10.65 / Stück
Datenblatt ansehen →MC9S12XDP512MAG
✅ Drop-In✓ Auf Lager
Preis auf Anfrage
Datenblatt ansehen →MC9S12XD256MAG
✅ Drop-In✓ Auf Lager
$17.1 / Stück
Datenblatt ansehen →MC9S12XD256MAL
✅ Drop-In✓ Auf Lager
$17.85 / Stück
Datenblatt ansehen →MC9S12XHZ256CAG
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC9S12XEP100MAL
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC9S12XDT256CAG Grenzwerte & elektrische Eigenschaften
| Core | HCS12X (16-bit CISC with XGATE co-processor) |
| Program Memory | 256 KB Flash |
| RAM | 16 KB |
| EEPROM | 4 KB |
| Maximum CPU Frequency | 80 MHz |
| Supply Voltage - Core | 2.35 V to 2.75 V |
| Supply Voltage - I/O | 4.5 V to 5.5 V |
| I/O Pins | 119 |
| Betriebstemperatur | -40C to +85C |
| Gehäuse | 144-pin LQFP (20x20 mm) |
| CAN Controllers (MSCAN) | 5 (CAN 2.0 A/B) |
| SCI / SPI | Yes |
| ADC | 16-channel, 10-bit |
| PWM Channels | 8 |
| Timers | ECT (Enhanced Capture Timer) |
| Montageart | Surface Mount |
| Debug Interface | BDM (Background Debug Mode) |
| Lebenszyklusstatus | No Longer Manufactured (per NXP product page) |
MC9S12XDT256CAG Pin-Konfiguration
| Pin 1 | VDDX — I/O supply voltage (5V) |
| Pin 2 | VSSX — I/O ground |
| Pin 3 | PA0 — Port A bit 0 (GPIO/ATD channel) |
| Pin 4 | PA1 — Port A bit 1 (GPIO/ATD channel) |
| Pin 5 | PA2 — Port A bit 2 (GPIO/ATD channel) |
| Pin 6 | PA3 — Port A bit 3 (GPIO/ATD channel) |
| Pin 7 | PA4 — Port A bit 4 (GPIO/ATD channel) |
| Pin 8 | PA5 — Port A bit 5 (GPIO/ATD channel) |
| Pin 9 | PA6 — Port A bit 6 (GPIO/ATD channel) |
| Pin 10 | PA7 — Port A bit 7 (GPIO/ATD channel) |
| Pin 11 | BKGD — Background Debug Mode pin |
| Pin 12 | XFC — PLL loop filter capacitor |
| Pin 13 | XTAL — Crystal oscillator input |
| Pin 14 | EXTAL — Crystal oscillator output |
| Pin 15 | RESET — External reset input (active low) |
| Pin 16 | VDDR — Internal regulator supply (2.5V core) |
| Pin 17 | VSSR — Core ground |
| Pin 18 | TEST — Test mode pin (tie to VSS) |
| Pin 19 | VDDA — ADC supply voltage |
| Pin 20 | VSSA — ADC ground |
| Pin 21 | VRH — ADC high reference voltage |
| Pin 22 | VRL — ADC low reference voltage |
| Pin 23 | PE0 — Port E bit 0 (IRQ, XIRQ, GPIO) |
| Pin 24 | PE1 — Port E bit 1 (IRQ, GPIO) |
| Pin 25 | PE2 — Port E bit 2 (IRQ, GPIO) |
| Pin 26 | PE3 — Port E bit 3 (IRQ, GPIO) |
| Pin 27 | PE4 — Port E bit 4 (GPIO, SCI) |
| Pin 28 | PE5 — Port E bit 5 (GPIO, SCI) |
| Pin 29 | PE6 — Port E bit 6 (GPIO, SCI) |
| Pin 30 | PE7 — Port E bit 7 (GPIO, SCI) |
| Pin 31 | PH0 — Port H bit 0 (GPIO, PWM) |
| Pin 32 | PH1 — Port H bit 1 (GPIO, PWM) |
| Pin 33 | PH2 — Port H bit 2 (GPIO, PWM) |
| Pin 34 | PH3 — Port H bit 3 (GPIO, PWM) |
| Pin 35 | PH4 — Port H bit 4 (GPIO, PWM) |
| Pin 36 | PH5 — Port H bit 5 (GPIO, PWM) |
| Pin 37 | PH6 — Port H bit 6 (GPIO, PWM) |
| Pin 38 | PH7 — Port H bit 7 (GPIO, PWM) |
| Pin 39 | PJ0 — Port J bit 0 (GPIO, CAN0) |
| Pin 40 | PJ1 — Port J bit 1 (GPIO, CAN0) |
| Pin 41 | PJ2 — Port J bit 2 (GPIO, CAN1) |
| Pin 42 | PJ3 — Port J bit 3 (GPIO, CAN1) |
| Pin 43 | PJ4 — Port J bit 4 (GPIO, CAN2) |
| Pin 44 | PJ5 — Port J bit 5 (GPIO, CAN2) |
| Pin 45 | PJ6 — Port J bit 6 (GPIO, CAN3) |
| Pin 46 | PJ7 — Port J bit 7 (GPIO, CAN3) |
| Pin 47 | PK0 — Port K bit 0 (GPIO, CAN4) |
| Pin 48 | PK1 — Port K bit 1 (GPIO, CAN4) |
| Pin 49 | PK2 — Port K bit 2 (GPIO) |
| Pin 50 | PK3 — Port K bit 3 (GPIO) |
| Pin 51 | PK4 — Port K bit 4 (GPIO) |
| Pin 52 | PK5 — Port K bit 5 (GPIO) |
| Pin 53 | PK6 — Port K bit 6 (GPIO) |
| Pin 54 | PK7 — Port K bit 7 (GPIO) |
| Pin 55 | PM0 — Port M bit 0 (GPIO, SPI) |
| Pin 56 | PM1 — Port M bit 1 (GPIO, SPI) |
| Pin 57 | PM2 — Port M bit 2 (GPIO, SPI) |
| Pin 58 | PM3 — Port M bit 3 (GPIO, SPI) |
| Pin 59 | PM4 — Port M bit 4 (GPIO, SPI) |
| Pin 60 | PM5 — Port M bit 5 (GPIO, SPI) |
| Pin 61 | PM6 — Port M bit 6 (GPIO, SPI) |
| Pin 62 | PM7 — Port M bit 7 (GPIO, SPI) |
| Pin 63 | PP0 — Port P bit 0 (GPIO, PWM) |
| Pin 64 | PP1 — Port P bit 1 (GPIO, PWM) |
| Pin 65 | PP2 — Port P bit 2 (GPIO, PWM) |
| Pin 66 | PP3 — Port P bit 3 (GPIO, PWM) |
| Pin 67 | PP4 — Port P bit 4 (GPIO, PWM) |
| Pin 68 | PP5 — Port P bit 5 (GPIO, PWM) |
| Pin 69 | PP6 — Port P bit 6 (GPIO, PWM) |
| Pin 70 | PP7 — Port P bit 7 (GPIO, PWM) |
| Pin 71 | PS0 — Port S bit 0 (GPIO, SPI0) |
| Pin 72 | PS1 — Port S bit 1 (GPIO, SPI0) |
| Pin 73 | PS2 — Port S bit 2 (GPIO, SPI0) |
| Pin 74 | PS3 — Port S bit 3 (GPIO, SPI0) |
| Pin 75 | PS4 — Port S bit 4 (GPIO, SPI0) |
| Pin 76 | PS5 — Port S bit 5 (GPIO, SPI0) |
| Pin 77 | PS6 — Port S bit 6 (GPIO, SPI0) |
| Pin 78 | PS7 — Port S bit 7 (GPIO, SPI0) |
| Pin 79 | PT0 — Port T bit 0 (GPIO, ECT timer) |
| Pin 80 | PT1 — Port T bit 1 (GPIO, ECT timer) |
| Pin 81 | PT2 — Port T bit 2 (GPIO, ECT timer) |
| Pin 82 | PT3 — Port T bit 3 (GPIO, ECT timer) |
| Pin 83 | PT4 — Port T bit 4 (GPIO, ECT timer) |
| Pin 84 | PT5 — Port T bit 5 (GPIO, ECT timer) |
| Pin 85 | PT6 — Port T bit 6 (GPIO, ECT timer) |
| Pin 86 | PT7 — Port T bit 7 (GPIO, ECT timer) |
| Pin 87 | AN0 — ADC analog input channel 0 (shared with PAD0) |
| Pin 88 | AN1 — ADC analog input channel 1 (shared with PAD1) |
| Pin 89 | AN2 — ADC analog input channel 2 (shared with PAD2) |
| Pin 90 | AN3 — ADC analog input channel 3 (shared with PAD3) |
| Pin 91 | AN4 — ADC analog input channel 4 (shared with PAD4) |
| Pin 92 | AN5 — ADC analog input channel 5 (shared with PAD5) |
| Pin 93 | AN6 — ADC analog input channel 6 (shared with PAD6) |
| Pin 94 | AN7 — ADC analog input channel 7 (shared with PAD7) |
| Pin 95 | PB0 — Port B bit 0 (GPIO, PWM) |
| Pin 96 | PB1 — Port B bit 1 (GPIO, PWM) |
| Pin 97 | PB2 — Port B bit 2 (GPIO, PWM) |
| Pin 98 | PB3 — Port B bit 3 (GPIO, PWM) |
| Pin 99 | PB4 — Port B bit 4 (GPIO, PWM) |
| Pin 100 | PB5 — Port B bit 5 (GPIO, PWM) |
| Pin 101 | PB6 — Port B bit 6 (GPIO, PWM) |
| Pin 102 | PB7 — Port B bit 7 (GPIO, PWM) |
| Pin 103 | PC0 — Port C bit 0 (GPIO) |
| Pin 104 | PC1 — Port C bit 1 (GPIO) |
| Pin 105 | PC2 — Port C bit 2 (GPIO) |
| Pin 106 | PC3 — Port C bit 3 (GPIO) |
| Pin 107 | PC4 — Port C bit 4 (GPIO) |
| Pin 108 | PC5 — Port C bit 5 (GPIO) |
| Pin 109 | PC6 — Port C bit 6 (GPIO) |
| Pin 110 | PC7 — Port C bit 7 (GPIO) |
| Pin 111 | PD0 — Port D bit 0 (GPIO, SCI) |
| Pin 112 | PD1 — Port D bit 1 (GPIO, SCI) |
| Pin 113 | PD2 — Port D bit 2 (GPIO, SPI) |
| Pin 114 | PD3 — Port D bit 3 (GPIO, SPI) |
| Pin 115 | PD4 — Port D bit 4 (GPIO, SPI) |
| Pin 116 | PD5 — Port D bit 5 (GPIO, SPI) |
| Pin 117 | PD6 — Port D bit 6 (GPIO, SPI) |
| Pin 118 | PD7 — Port D bit 7 (GPIO, SPI) |
| Pin 119 | PF0 — Port F bit 0 (GPIO, ECT) |
| Pin 120 | PF1 — Port F bit 1 (GPIO, ECT) |
| Pin 121 | PF2 — Port F bit 2 (GPIO, ECT) |
| Pin 122 | PF3 — Port F bit 3 (GPIO, ECT) |
| Pin 123 | PF4 — Port F bit 4 (GPIO, ECT) |
| Pin 124 | PF5 — Port F bit 5 (GPIO, ECT) |
| Pin 125 | PF6 — Port F bit 6 (GPIO, ECT) |
| Pin 126 | PF7 — Port F bit 7 (GPIO, ECT) |
| Pin 127 | PG0 — Port G bit 0 (GPIO) |
| Pin 128 | PG1 — Port G bit 1 (GPIO) |
| Pin 129 | PG2 — Port G bit 2 (GPIO) |
| Pin 130 | PG3 — Port G bit 3 (GPIO) |
| Pin 131 | PG4 — Port G bit 4 (GPIO) |
| Pin 132 | PG5 — Port G bit 5 (GPIO) |
| Pin 133 | PG6 — Port G bit 6 (GPIO) |
| Pin 134 | PG7 — Port G bit 7 (GPIO) |
| Pin 135 | VDDX — I/O supply voltage (5V) |
| Pin 136 | VSSX — I/O ground |
| Pin 137 | VDDR — Internal regulator supply (2.5V core) |
| Pin 138 | VSSR — Core ground |
| Pin 139 | CAN0TX — CAN0 transmit (alternate function) |
| Pin 140 | CAN0RX — CAN0 receive (alternate function) |
| Pin 141 | CAN1TX — CAN1 transmit (alternate function) |
| Pin 142 | CAN1RX — CAN1 receive (alternate function) |
| Pin 143 | CAN4TX — CAN4 transmit (alternate function) |
| Pin 144 | CAN4RX — CAN4 receive (alternate function) |
Typische Anwendungen
MC9S12XDT256CAG ist geeignet für 7 Anwendungs: Automotive Body Control Module (BCM), Automotive Gateway / Network Bridge, HVAC Climate Control Module, Industrial CAN-Node Controller, Instrument Cluster Controller, Door Module / Seat Controller, Battery Management Slave Controller.
Automotive Body Control Module (BCM)
The MC9S12XDT256CAG fits BCM designs because it integrates 5 MSCAN controllers, 119 GPIO, and 256 KB Flash in a single 144-LQFP, eliminating the external CAN expander ICs often required by smaller MCUs. Its 5V I/O tolerance interfaces directly to 12V automotive loads through standard high-side drivers. The XGATE co-processor offloads CAN message processing from the main CPU, sustaining deterministic response times below 1 ms across multiple in-vehicle buses. Typical BCM tasks include central locking, exterior lighting, wiper control, and gateway routing - all within the device's 256 KB Flash budget.
Empfohlen
Automotive Gateway / Network Bridge
For CAN-to-CAN gateway modules, the MC9S12XDT256CAG's 5 MSCAN channels and XGATE co-processor allow simultaneous bridging across powertrain, body, and chassis buses without packet loss. The 256 KB Flash accommodates routing tables for typical mid-range gateways with 50-100 message IDs. The HCS12X instruction set and on-chip 4 KB EEPROM simplify non-volatile storage of network configuration. Engineers should evaluate MC9S12XDP512MAG if the routing table exceeds 256 KB, or MC9S12XEP100MAL for higher-end gateway designs.
Empfohlen
HVAC Climate Control Module
HVAC modules leverage the MC9S12XDT256CAG's 16-channel 10-bit ADC for multi-zone temperature sensing and 8 PWM channels for blower motor speed control. The 119 GPIO count allows direct interface to rotary encoders, push buttons, and stepper motor drivers without external I/O expanders. The -40C to +85C operating range covers cabin and under-dash environments. The 256 KB Flash is sufficient for adaptive climate-control algorithms with PID loops and PWM scheduling. Use the ECT (Enhanced Capture Timer) for precise PWM dead-time generation to prevent shoot-through in motor half-bridges.
Empfohlen
Industrial CAN-Node Controller
In industrial automation, the MC9S12XDT256CAG serves as a CANopen or DeviceNet slave controller with 5 isolated CAN ports and 5V-tolerant GPIO for direct sensor/actuator interface. The XGATE handles CAN message processing deterministically, freeing the CPU for application logic. The 256 KB Flash supports CANopen stack libraries (typically 80-150 KB) plus custom application code. The 144-LQFP (20x20) package is suitable for industrial -40C to +85C enclosures. Pair with isolated CAN transceivers like ISO1050 for galvanic isolation in 24V industrial environments.
Empfohlen
Instrument Cluster Controller
Instrument clusters benefit from the MC9S12XDT256CAG's SPI interface for connecting to stepper motor gauge drivers and segmented LCD controllers. The 5 MSCAN channels receive vehicle CAN bus data for speed, RPM, fuel level, and temperature gauges. The 256 KB Flash accommodates gauge sweep animations and warning logic, while 16 KB RAM buffers display update frames. The HCS12X core's deterministic interrupt response suits real-time gauge damping calculations. For full TFT cluster designs, the MC9S12XEP100MAL offers 1 MB Flash for graphics rendering.
Empfohlen
Door Module / Seat Controller
Door modules controlling window lift, mirror adjustment, and central locking use the MC9S12XDT256CAG's PWM channels for motor speed control and 119 GPIO for switch matrix and LED feedback. The 256 KB Flash supports multi-window anti-pinch algorithms and LIN/CAN communication with the BCM. The -40C to +85C rating covers door-mounted environments with summer sun heating. The 5 MSCAN channels allow integration with body bus plus a private sub-network. Pin-compatible migration to MC9S12XDP512MAG provides headroom for advanced comfort features.
Empfohlen
Battery Management Slave Controller
In 12V/48V automotive battery management systems, the MC9S12XDT256CAG acts as a cell-monitoring slave communicating via CAN to a master BMS controller. Its 16-channel 10-bit ADC samples cell voltages while 5V GPIO interfaces directly to battery pack voltage dividers. The 256 KB Flash supports cell-balancing algorithms and SOH (State-of-Health) estimation. The -40C to +85C rating handles underhood battery compartment environments. The 5 MSCAN channels allow daisy-chained multi-pack configurations without external CAN muxes.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MC9S12XDT256CAG – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | MC9S12XDT256CAGR | MC9S12XDT256MAG | MC9S12XDP512MAG | MC9S12XD256MAG | MC9S12XEP100MAL |
|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Flash | 256 KB | 256 KB | 256 KB | 512 KB | 256 KB | 1 MB |
| RAM | 16 KB | 16 KB | 16 KB | 32 KB | 16 KB | 64 KB |
| MSCAN CAN Channels | 5 | 5 | 5 | 6 | 4 | 5 |
| CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 100 MHz |
| Operating Temperature | -40C to +85C (C grade) | -40C to +85C | -40C to +125C (M grade) | -40C to +125C (M grade) | -40C to +125C (M grade) | -40C to +125C (M grade) |
| XGATE Co-processor | Yes | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | No Longer Manufactured | No Longer Manufactured | No Longer Manufactured | Active | Active (legacy) | Active |
Wichtigste Unterscheidungsmerkmale
- 5 MSCAN channels - among the highest CAN density in HCS12X family (vs. MC9S12XD256MAG)
- 256 KB Flash with XGATE - balanced code size and peripheral processing (vs. MC9S12XDP512MAG)
- Tier-A drop-in compatibility across S12XD family (vs. MC9S12XEP100MAL)
Designhinweise
The MC9S12XDT256CAG requires two supply rails: VDDR (2.35V to 2.75V core, internally regulated from VDDX) and VDDX (4.5V to 5.5V I/O). Place a 100 nF ceramic + 4.7 uF bulk capacitor directly on VDDR/VSS and a 10 uF + 100 nF combination on VDDX/VSSX. Add a ferrite bead between battery 12V and VDDX for automotive transient suppression. Reverse-battery and load-dump protection (e.g., SMBJ24CA TVS) is mandatory for 12V automotive environments.
The XFC pin (PLL loop filter) requires careful layout: route a low-leakage capacitor (typically 1 nF to 10 nF C0G/NP0) directly to the XFC pin and VSS with minimal trace length (<5 mm) and no via stubs. Keep the XTAL/EXTAL traces short and symmetric, surrounded by a ground guard ring to avoid crosstalk. Route the BKGD and RESET traces away from PWM outputs and motor driver signals to prevent noise-induced debug failures.
Watch out for these common pitfalls: (1) Enabling the on-chip voltage regulator without a valid clock source can lock the device - always ensure XTAL/EXTAL is stable before exiting reset. (2) The XGATE co-processor must be explicitly enabled in software and its interrupt vector table loaded into RAM at startup - omitting this causes hard-fault on peripheral ISRs. (3) MSCAN bit timing requires careful calculation of TSEG1/TSEG2 per the bus baud rate and oscillator accuracy - use NXP's CAN bit timing calculator tool.
The 144-LQFP package has a theta-JA of approximately 38 C/W with a standard 4-layer JEDEC PCB. At 80 MHz CPU clock, the device typically dissipates 0.5 W to 1.0 W depending on peripheral activity. For sealed enclosures without airflow, calculate junction temperature using T_J = T_A + (P_D x theta-JA). Ensure T_J remains below 125C maximum. NXP application note AN2400 provides thermal characterization data.
Compliance-Informationen
AEC-Q100 qualified per NXP S12XD family datasheet. Lead-free reflow-compatible. RoHS/REACH/halogen-free status not confirmed from verified web data - listed as [DATA_NEEDED].
