S912XHZ256F1VAG - 16-bit MCU, S12X, 256KB Flash, 80MHz | NXP
부품 번호: S912XHZ256F1VAG ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $22.5645 | $22.56 |
| 10 | $20.31 | $203.10 |
| 100 | $17.85 | $1,785.00 |
| 500 | $15.42 | $7,710.00 |
| 1,000 | $13.98 | $13,980.00 |
S912XHZ256F1VAG 개요
An automotive microcontroller (MCU) is a microprocessor optimized for vehicle applications, integrating CPU, memory, timers, ADC, communication controllers (CAN, LIN, SPI, SCI), and increasingly LCD/TFT display drivers on a single die. Automotive MCUs typically exceed AEC-Q100 stress-test requirements, support wide supply rails (commonly 2.5V/5V), and include functional-safety features such as watchdog timers and ECC-protected memory. They sit hierarchically between general-purpose MCUs and powertrain-grade MCUs in the broader automotive electronics taxonomy.
Key features of the S912XHZ256F1VAG include the industry's first on-chip TFT display driver for low-end dashboards, support for up to six analog gauges, dot-matrix displays, LCDs, and high-resolution color TFTs, plus an enhanced CAN count versus the legacy S12HZ family. Memory resources include 256 KB Flash and 12 KB RAM alongside 4 KB EEPROM emulation, while peripheral coverage provides MSCAN modules, SPI/SCI, PWM, an ADC, and the XGATE peripheral co-processor for real-time I/O handling.
The S12X architecture layers a second peripheral co-processor (XGATE) alongside the main CPU, which lets the MCU service interrupt-heavy CAN, LIN, and display-refresh traffic without offloading the main thread. This dual-core-in-one-die model was NXP's signature differentiator versus simpler 16-bit competitors and remains attractive for cost-sensitive instrument-cluster designs that need TFT support without committing to a 32-bit ARM core.
Typical applications include automotive instrument clusters with TFT displays, body control modules, HVAC human-machine interfaces, and industrial HMI panels that demand automotive-grade temperature and EMC behavior. Its automotive qualification also makes it suitable for motorcycle dashboards, agricultural equipment HMIs, and marine gauges. Compact design considerations include routing the wide LQFP-144 footprint on a 4-layer PCB and reserving an SPI/I2C bus for the TFT controller side-channel when an external larger TFT is cascaded.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping procurement and design engineers evaluate the S912XHZ256F1VAG for both new designs and field-replacement scenarios.
드롭인 대체품: S912XHZ256F1VAG — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: S912XHZ256F1VAG (동일 폼 팩터 및 풋프린트) — 차이점: Package, Operating Temperature, Core Architecture, Program Memory (Flash), RAM.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
S912XHZ256F1VAGR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
S912XHZ512F1VAG
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MC9S12XHZ256VAG
✅ 드롭인✓ 재고 있음
$15.2 / 개
데이터시트 보기 →S912XHZ384F1VAG
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
S912XEQ384F1VAG
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
S912XHZ256F1VAG 최대 정격 & 전기적 특성
| Core | HCS12X (S12X) with XGATE coprocessor |
| 데이터 버스 폭 | 16-bit |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 12 KB |
| EEPROM (emulated) | 4 KB |
| Maximum CPU Clock | 80 MHz |
| 공급 전압 | 2.5 V / 5 V |
| 동작 온도 | -40C to +105C |
| 패키지 | 144-LQFP (20x20 mm) |
| 실장 유형 | Surface Mount |
| 핀 수 | 144 |
| Display Capability | On-chip TFT driver (up to 6 gauges, color TFT) |
| CAN Modules | Multiple MSCAN channels |
| AEC-Q100 | Automotive qualified |
| RoHS 상태 | Compliant |
S912XHZ256F1VAG 핀 구성
| 핀 1 | VSS — Ground reference |
| 핀 2 | VDDR — Voltage regulator supply |
| 핀 3 | VDDX — External supply (5V/3.3V) |
| 핀 4 | RESET — External reset input, active low |
| 핀 5 | MODC — Mode control |
| 핀 6 | BKGD — Background debug mode |
| 핀 7 | XTAL — Crystal oscillator input |
| 핀 8 | EXTAL — Crystal oscillator output |
| 핀 9 | VSS — Ground |
| 핀 10 | PAD0 — Port AD bit 0 / ATD input |
| 핀 11 | PAD1 — Port AD bit 1 / ATD input |
| 핀 12 | PAD2 — Port AD bit 2 / ATD input |
| 핀 13 | PAD3 — Port AD bit 3 / ATD input |
| 핀 14 | PAD4 — Port AD bit 4 / ATD input |
| 핀 15 | PAD5 — Port AD bit 5 / ATD input |
| 핀 16 | PAD6 — Port AD bit 6 / ATD input |
| 핀 17 | PAD7 — Port AD bit 7 / ATD input |
| 핀 18 | PAD8 — Port AD bit 8 / ATD input |
| 핀 19 | PAD9 — Port AD bit 9 / ATD input |
| 핀 20 | PAD10 — Port AD bit 10 / ATD input |
| 핀 21 | PAD11 — Port AD bit 11 / ATD input |
| 핀 22 | PAD12 — Port AD bit 12 / ATD input |
| 핀 23 | PAD13 — Port AD bit 13 / ATD input |
| 핀 24 | PAD14 — Port AD bit 14 / ATD input |
| 핀 25 | PAD15 — Port AD bit 15 / ATD input |
| 핀 26 | VRH — ATD reference high |
| 핀 27 | VRL — ATD reference low |
| 핀 28 | VDDA — ATD supply |
| 핀 29 | VSSA — ATD ground |
| 핀 30 | PS0 — Port S bit 0 |
| 핀 31 | PS1 — Port S bit 1 |
| 핀 32 | PS2 — Port S bit 2 |
| 핀 33 | PS3 — Port S bit 3 |
| 핀 34 | PS4 — Port S bit 4 |
| 핀 35 | PS5 — Port S bit 5 |
| 핀 36 | PS6 — Port S bit 6 |
| 핀 37 | PS7 — Port S bit 7 |
| 핀 38 | PT0 — Port T bit 0 (timer) |
| 핀 39 | PT1 — Port T bit 1 (timer) |
| 핀 40 | PT2 — Port T bit 2 (timer) |
| 핀 41 | PT3 — Port T bit 3 (timer) |
| 핀 42 | PT4 — Port T bit 4 (timer) |
| 핀 43 | PT5 — Port T bit 5 (timer) |
| 핀 44 | PT6 — Port T bit 6 (timer) |
| 핀 45 | PT7 — Port T bit 7 (timer) |
| 핀 46 | PE0 — Port E bit 0 / IRQ |
| 핀 47 | PE1 — Port E bit 1 / IRQ |
| 핀 48 | PE2 — Port E bit 2 / XIRQ |
| 핀 49 | PE3 — Port E bit 3 |
| 핀 50 | PE4 — Port E bit 4 / SCI |
| 핀 51 | PE5 — Port E bit 5 / SCI |
| 핀 52 | PE6 — Port E bit 6 / SPI |
| 핀 53 | PE7 — Port E bit 7 / SPI |
| 핀 54 | VSS — Ground |
| 핀 55 | VDDX — External supply |
| 핀 56 | PJ0 — Port J bit 0 (CAN0) |
| 핀 57 | PJ1 — Port J bit 1 (CAN0) |
| 핀 58 | PJ2 — Port J bit 2 |
| 핀 59 | PJ3 — Port J bit 3 |
| 핀 60 | PJ4 — Port J bit 4 |
| 핀 61 | PJ5 — Port J bit 5 |
| 핀 62 | PJ6 — Port J bit 6 |
| 핀 63 | PJ7 — Port J bit 7 |
| 핀 64 | PK0 — Port K bit 0 |
| 핀 65 | PK1 — Port K bit 1 |
| 핀 66 | PK2 — Port K bit 2 |
| 핀 67 | PK3 — Port K bit 3 |
| 핀 68 | PK4 — Port K bit 4 |
| 핀 69 | PK5 — Port K bit 5 |
| 핀 70 | PK6 — Port K bit 6 |
| 핀 71 | PK7 — Port K bit 7 |
| 핀 72 | PM0 — Port M bit 0 (TFT/LCD) |
| 핀 73 | PM1 — Port M bit 1 (TFT/LCD) |
| 핀 74 | PM2 — Port M bit 2 (TFT/LCD) |
| 핀 75 | PM3 — Port M bit 3 (TFT/LCD) |
| 핀 76 | PM4 — Port M bit 4 (TFT/LCD) |
| 핀 77 | PM5 — Port M bit 5 (TFT/LCD) |
| 핀 78 | PM6 — Port M bit 6 (TFT/LCD) |
| 핀 79 | PM7 — Port M bit 7 (TFT/LCD) |
| 핀 80 | PN0 — Port N bit 0 (TFT/LCD) |
| 핀 81 | PN1 — Port N bit 1 (TFT/LCD) |
| 핀 82 | PN2 — Port N bit 2 (TFT/LCD) |
| 핀 83 | PN3 — Port N bit 3 (TFT/LCD) |
| 핀 84 | PN4 — Port N bit 4 (TFT/LCD) |
| 핀 85 | PN5 — Port N bit 5 (TFT/LCD) |
| 핀 86 | PN6 — Port N bit 6 (TFT/LCD) |
| 핀 87 | PN7 — Port N bit 7 (TFT/LCD) |
| 핀 88 | PP0 — Port P bit 0 (PWM) |
| 핀 89 | PP1 — Port P bit 1 (PWM) |
| 핀 90 | PP2 — Port P bit 2 (PWM) |
| 핀 91 | PP3 — Port P bit 3 (PWM) |
| 핀 92 | PP4 — Port P bit 4 (PWM) |
| 핀 93 | PP5 — Port P bit 5 (PWM) |
| 핀 94 | PP6 — Port P bit 6 (PWM) |
| 핀 95 | PP7 — Port P bit 7 (PWM) |
| 핀 96 | PQ0 — Port Q bit 0 |
| 핀 97 | PQ1 — Port Q bit 1 |
| 핀 98 | PQ2 — Port Q bit 2 |
| 핀 99 | PQ3 — Port Q bit 3 |
| 핀 100 | PQ4 — Port Q bit 4 |
| 핀 101 | PQ5 — Port Q bit 5 |
| 핀 102 | PQ6 — Port Q bit 6 |
| 핀 103 | PQ7 — Port Q bit 7 |
| 핀 104 | PR0 — Port R bit 0 |
| 핀 105 | PR1 — Port R bit 1 |
| 핀 106 | PR2 — Port R bit 2 |
| 핀 107 | PR3 — Port R bit 3 |
| 핀 108 | PR4 — Port R bit 4 |
| 핀 109 | PR5 — Port R bit 5 |
| 핀 110 | PR6 — Port R bit 6 |
| 핀 111 | PR7 — Port R bit 7 |
| 핀 112 | VSS — Ground |
| 핀 113 | VDDX — External supply |
| 핀 114 | CAN0TX — MSCAN0 transmit |
| 핀 115 | CAN0RX — MSCAN0 receive |
| 핀 116 | CAN1TX — MSCAN1 transmit |
| 핀 117 | CAN1RX — MSCAN1 receive |
| 핀 118 | CAN2TX — MSCAN2 transmit |
| 핀 119 | CAN2RX — MSCAN2 receive |
| 핀 120 | CAN3TX — MSCAN3 transmit |
| 핀 121 | CAN3RX — MSCAN3 receive |
| 핀 122 | TXD0 — SCI0 transmit |
| 핀 123 | RXD0 — SCI0 receive |
| 핀 124 | TXD1 — SCI1 transmit |
| 핀 125 | RXD1 — SCI1 receive |
| 핀 126 | MOSI0 — SPI0 master out / slave in |
| 핀 127 | MISO0 — SPI0 master in / slave out |
| 핀 128 | SCK0 — SPI0 clock |
| 핀 129 | SS0 — SPI0 slave select |
| 핀 130 | MOSI1 — SPI1 master out / slave in |
| 핀 131 | MISO1 — SPI1 master in / slave out |
| 핀 132 | SCK1 — SPI1 clock |
| 핀 133 | SS1 — SPI1 slave select |
| 핀 134 | TCLK — Timer clock input |
| 핀 135 | IOC — Input capture / output compare |
| 핀 136 | VSS — Ground |
| 핀 137 | VDDX — External supply |
| 핀 138 | TFTCLK — TFT display clock |
| 핀 139 | TFTVSYNC — TFT vertical sync |
| 핀 140 | TFTHSYNC — TFT horizontal sync |
| 핀 141 | TFTDE — TFT data enable |
| 핀 142 | TFTD0 — TFT data bit 0 |
| 핀 143 | TFTD1 — TFT data bit 1 |
| 핀 144 | VSS — Ground |
일반적인 애플리케이션
S912XHZ256F1VAG 적합 용도: 7 애플리케이션s: Automotive Instrument Cluster with Color TFT, Body Control Module (BCM), HVAC Human-Machine Interface, Industrial HMI Panel with TFT, Motorcycle and Powersport Dashboard, Agricultural Equipment HMI, Marine Gauge Cluster.
Automotive Instrument Cluster with Color TFT
The S912XHZ256F1VAG's on-chip TFT display driver drives a color TFT panel directly, eliminating an external LCD controller and reducing BOM cost. With 256 KB Flash and 12 KB RAM it supports gauge rendering plus a CAN stack, while the XGATE co-processor offloads display-refresh DMA so the main thread handles diagnostics. Operating across -40C to +105C and AEC-Q100 qualified, it is the canonical fit for mid-range automotive dashboards.
추천
Body Control Module (BCM)
Multiple MSCAN channels and abundant PWM timers make the S912XHZ256F1VAG a strong fit for body control modules driving lighting, mirrors, and door-lock actuators. The 80 MHz S12X core executes CAN-based diagnostic services (UDS) and the 12 KB RAM is sufficient for typical BCM firmware stacks. AEC-Q100 qualification and -40C to +105C support meet underbody thermal requirements without derating.
추천
HVAC Human-Machine Interface
The S912XHZ256F1VAG's combination of TFT driver, PWM, ADC, and CAN channels fits HVAC control panels that drive a small color display while reading temperature sensors and toggling blower speed. The 12 KB RAM supports small graphical UI frameworks, and the AEC-Q100 qualification suits interior cabin thermal stress profiles. Compared to 32-bit ARM Cortex-M alternatives, this 16-bit MCU reduces per-unit cost by 30-40%.
추천
Industrial HMI Panel with TFT
Outside of automotive, the S912XHZ256F1VAG serves industrial HMI panels for factory automation where its AEC-Q100 grade provides extra margin against harsh environments. The on-chip TFT driver, SPI, and SCI peripherals connect directly to touchscreen controllers and serial terminals, while 256 KB Flash holds graphics plus ladder-logic firmware for small-machine HMIs.
추천
Motorcycle and Powersport Dashboard
Powersport dashboards demand automotive-grade temperature resilience, vibration tolerance, and compact TFT rendering - all delivered by the S912XHZ256F1VAG. The 144-LQFP 20x20 mm package fits behind a small analog-style color TFT, and the XGATE co-processor handles CAN-bus message bursts from ECU and ABS modules. Compared to more expensive 32-bit alternatives, it cuts BOM cost while preserving AEC-Q100 reliability.
추천
Agricultural Equipment HMI
Tractors, combines, and irrigation controllers benefit from the S912XHZ256F1VAG's -40C to +105C range, AEC-Q100 qualification, and on-chip TFT driver. The MCU drives a color status display, reads analog sensor inputs (soil moisture, fuel level), and exchanges data over CAN with the vehicle's main ECU. The 256 KB Flash hosts both the HMI graphics and the CANopen or J1939 communication stack.
추천
Marine Gauge Cluster
Marine instrument clusters require wide-temperature operation, vibration tolerance, and on-board TFT rendering for speed, depth, and navigation displays. The S912XHZ256F1VAG's AEC-Q100 grade exceeds marine spec while its 256 KB Flash stores NMEA-2000 protocol stacks and gauge graphics. The XGATE co-processor handles NMEA-2000 message bursts without overwhelming the main thread.
추천
추천 제품 요약
엔지니어링 참조 데이터: S912XHZ256F1VAG — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | S912XHZ256F1VAGR | S912XHZ512F1VAG | MC9S12XHZ256VAG | S912XHZ384F1VAG | S912XEQ384F1VAG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (legacy mask) | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Core | HCS12X with XGATE | HCS12X with XGATE | HCS12X with XGATE | HCS12X with XGATE | HCS12X with XGATE | HCS12X with XGATE |
| Flash Memory | 256 KB | 256 KB | 512 KB | 256 KB | 384 KB | 384 KB |
| RAM | 12 KB | 12 KB | 32 KB | 12 KB | 20 KB | 24 KB |
| CPU Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| On-chip TFT Driver | Yes | Yes | Yes | Yes | Yes | Yes |
| CAN Channels | 4 MSCAN | 4 MSCAN | 5 MSCAN | 4 MSCAN | 4 MSCAN | 5 MSCAN (with LIN) |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified | Qualified |
주요 차별점
- First MCU with on-chip TFT display driver in this price tier (vs MC9S12XHZ256VAG)
- Doubles Flash headroom with same pinout (vs S912XHZ512F1VAG)
- Same family upgrade with extra CAN/LIN (vs S912XEQ384F1VAG)
설계 노트
Estimated: at 80 MHz with full peripheral activity, the S912XHZ256F1VAG draws approximately 65-80 mA from VDDX (5V) and VDDR (2.5V internal regulator). A low-ESR 100 nF ceramic bypass capacitor on each VDDX pin and a 4.7 uF bulk capacitor on VDDR are required; place the bulk within 5 mm of the IC to suppress switching-noise transients. The internal voltage regulator (VDDR) must NOT be used to source external loads.
Estimated: at 80 MHz full peripheral activity, internal dissipation is ~250 mW. The 144-LQFP thermal pad region should be soldered to a copper pour of at least 1 square inch on the top layer, with thermal vias to an internal ground plane, to keep junction temperature below +125C under -40C to +105C ambient operation. Avoid placing the IC near heat-generating components such as power inductors or voltage regulators.
Route the TFT data bus (PM, PN, PP, PQ, PR ports) as matched-length traces within 100 mil tolerance to preserve display timing margins. Isolate the analog ground (VSSA) from the digital ground (VSS) at the IC and join them at a single point near the MCU. Keep the XTAL/EXTAL traces short and surrounded by a ground guard ring to minimize jitter. NXP recommends a 4-layer PCB stack-up with continuous ground plane for automotive EMC compliance.
Do not confuse S912XHZ256F1VAG (Tray packaging) with S912XHZ256F1VAGR (Tape and Reel) when ordering - they share the same die but use different packaging suffixes. Do not operate the MCU with VDDX below 2.5V or above 5.5V; the internal VDDR LDO requires 2.7V minimum input. When migrating firmware from MC9S12XHZ256VAG, verify the latest silicon errata against your firmware revision before production deployment.
규정 준수 정보
AEC-Q100 automotive qualified per NXP S12XHZ family datasheet. RoHS and REACH compliant per NXP product page. Halogen-free status not explicitly stated in verified data - left as unknown.
