My Inquiry
My Account
NXP Semiconductors S9S12XS128J1VAA
- Part No.:
- S9S12XS128J1VAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S9S12XS128J1VAA.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,196
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S9S12XS128J1VAA from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X-based microcontroller with 128 KB on-chip flash, 8 KB RAM, and integrated CAN 2.0B controller. It operates at up to 40 MHz core frequency, supports 5V I/O, and features a 10-bit ADC with 16 channels, PWM module, and background debug interface. It targets automotive body control modules requiring robust real-time control and CAN network integration.
For engineers reviewing the S9S12XS128J1VAA datasheet, S9S12XS128J1VAA pinout, S9S12XS128J1VAA application, or S9S12XS128J1VAA equivalent, key selection criteria include flash size, CAN interface support, 5V tolerance, BDM debug capability, and qualification for automotive temperature range (–40°C to 105°C).
Technical Context
The S9S12XS128J1VAA implements the S12X CPU12XV1 core with XGATE co-processor acceleration for interrupt handling and peripheral offload. Its memory architecture includes paged 128 KB flash organized in 1 KB sectors, 8 KB RAM, and 1 KB EEPROM emulation via flash.
It integrates S12MSCANV3 CAN controller supporting both standard and extended frames, S12PWM8B8CV1 with 8-channel PWM, and S12ADC12B16CV1 10-bit ADC with configurable sample time and trigger sources including timer and external pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12X 16-bit CPU12XV1 with XGATE co-processor for deterministic ISR offload |
| Flash Memory | 128 KB on-chip flash with 1 KB sector erase, 100K write/erase cycles, and EEPROM emulation |
| RAM | 8 KB on-chip SRAM with retention in stop mode |
| CAN Interface | One S12MSCANV3 module supporting CAN 2.0A/B, 1 MBps, with 16 message buffers and flexible filtering |
| ADC | 10-bit successive approximation ADC with 16 input channels, programmable conversion time, and hardware-triggered sequencing |
| PWM | 8-channel 8-bit PWM (S12PWM8B8CV1) with center-aligned mode, dead-time insertion, and fault protection inputs |
| Operating Voltage | 4.5 V to 5.5 V - enables direct interfacing with legacy 5V automotive sensors and logic without level shifters |
| Temperature Range | –40°C to +105°C - AEC-Q100 Grade 2 qualified for under-hood automotive applications |
Pinout & Package
Package: 80-pin Quad Flat Package (80QFP), 14 mm × 14 mm, 0.65 mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate digital, analog, and PLL power domains enable noise isolation and stable clock generation |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated analog and PLL ground pins minimize coupling of digital switching noise into sensitive circuits |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; supports external watchdog or power-on reset assertion |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with configurable pull-up, reduced drive strength, and interrupt-on-change capability |
| PORTB[7:0] | General-purpose I/O port | 8-bit port supporting CAN TX/RX alternate functions on PB0/PB1 per S12MSCANV3 specification |
| PORTH[7:0] | General-purpose I/O port | 8-bit port with dedicated ADC channel mapping (e.g., PH0–PH7 map to AD0[0:7]) |
| PORTJ[7:0] | General-purpose I/O port | 8-bit port supporting PWM output (PJ0–PJ7) and external interrupt inputs (PJ0–PJ3) |
| XTAL, EXTAL | Crystal oscillator connections | Supports 4–32 MHz Pierce oscillator configuration; internal load capacitors reduce external component count |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads up to 16 priority-managed interrupt service routines from main CPU, reducing latency and jitter in time-critical CAN or PWM tasks |
| Background Debug Module (BDM) | Single-wire debug interface enabling full-speed debugging, flash programming, and non-intrusive register inspection without halting real-time operation |
| Flash security block | Configurable memory protection preventing unauthorized read-out or reprogramming of flash contents via BDM or serial interfaces |
| Low-power modes | Stop, Wait, and Freeze modes with wake-up on CAN message, external interrupt, or RTC alarm - extends battery life in always-on vehicle modules |
| On-chip voltage regulator | Integrated 3.3 V regulator (S12VREGL3V3V1) powers internal logic and peripherals, eliminating need for external LDO in many designs |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized management of lighting, window lift, mirror adjustment, and door lock actuation in modern vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time state machines, processing LIN/CAN commands, and driving discrete outputs via GPIO and PWM. Use Value: Integrated CAN 2.0B and 5V-tolerant I/O eliminate external transceivers and level shifters, reducing BOM cost and PCB area. | Use Scenario: Local control unit inside vehicle door housing motor drivers, sensor interfaces, and anti-pinch logic. IC Role / Device Role / Timing Role: Real-time motor control hub using PWM outputs and ADC feedback for window position sensing and current monitoring. Use Value: On-chip 10-bit ADC with hardware-triggered sampling ensures precise current measurement during motor stall detection without CPU overhead. |
| Roof Module (Sunroof/Climate) | Seat Control Unit |
Use Scenario: Actuation and position feedback for sunroof glass, tilt panel, and HVAC damper motors. IC Role / Device Role / Timing Role: Safety-critical motion controller with PWM-driven H-bridge gate signals and ADC-based thermal/current monitoring. Use Value: XGATE co-processor handles CAN message parsing and safety watchdog updates concurrently with motor control loops, ensuring deterministic response. | Use Scenario: Motorized seat positioning with memory presets, lumbar support, and heating element control. IC Role / Device Role / Timing Role: Multi-function controller managing 6+ DC motors, thermistor readings, and CAN-based user command reception. Use Value: 128 KB flash accommodates complex seat calibration tables and firmware updates over CAN, while 8 KB RAM supports real-time PID loop execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XS128MALR | Same core, flash, and peripheral set; differs only in packaging (112-pin LQFP vs. 80QFP) and temperature grade (–40°C to 125°C) | Higher ambient temperature requirement (e.g., engine bay mounting); larger footprint and pin count | Select when extended temperature range or additional I/O (e.g., extra CAN channel or SPI) is required |
| S912XDP512F0MLF | 512 KB flash, dual CAN, enhanced PWM, but no XGATE; requires external 3.3 V regulator | Higher integration for gateway or domain controller roles; lacks co-processor for low-latency ISR offload | Select when larger code space and dual-CAN are critical, and deterministic sub-1 µs interrupt response is not required |
Compared with MC9S12XS128MALR, the S9S12XS128J1VAA offers identical functionality in a smaller 80QFP package suited for space-constrained modules, while the S912XDP512F0MLF trades XGATE acceleration and integrated voltage regulation for greater flash capacity and dual-CAN - making it better suited for gateway applications than body node control.
Availability
S9S12XS128J1VAA is available at Aetrix Electronics and suitable for automotive body electronics, door control units, and roof module designs requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for S9S12XS128J1VAA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The S12XS family was designed specifically for cost-sensitive, high-reliability automotive body electronics, emphasizing CAN integration, 5V robustness, and debug-friendly development for Tier-1 ECU suppliers.
FAQ
What is the maximum operating frequency of the S9S12XS128J1VAA?
The S9S12XS128J1VAA supports a maximum core frequency of 40 MHz when driven by its internal PLL, which accepts input from an external crystal (4–32 MHz) or oscillator. This frequency enables real-time execution of CAN protocol stacks, PWM motor control, and ADC sampling sequences within tight timing budgets typical of automotive body control applications. The S9S12XS128J1VAA's bus speed scales with core frequency, maintaining synchronous peripheral operation.
Does the S9S12XS128J1VAA include an integrated CAN controller?
Yes, the S9S12XS128J1VAA integrates one S12MSCANV3 module compliant with CAN 2.0A/B protocols, supporting bit rates up to 1 Mbps, 16 message buffers, and acceptance filtering. It uses PORTB pins PB0 (TX) and PB1 (RX) for physical layer interface and requires an external CAN transceiver. This integrated controller eliminates the need for a separate CAN protocol IC in body control modules where single-network connectivity suffices.
What debug interface does the S9S12XS128J1VAA support?
The S9S12XS128J1VAA supports the Background Debug Module (BDM) interface via a single-wire connection (BKGD pin), enabling full-speed debugging, flash programming, and register inspection without halting real-time operation. It is compatible with standard Freescale/NXP BDM tools such as the USB-ML-12 and standalone programmers. No JTAG or SWD interface is present - BDM is the sole standardized debug path for this device.
Is the S9S12XS128J1VAA qualified for automotive use?
Yes, the S9S12XS128J1VAA is AEC-Q100 Grade 2 qualified (–40°C to +105°C ambient), with built-in features supporting automotive reliability: flash endurance (100K cycles), EEPROM emulation, brown-out reset, and watchdog timer. Its 5V I/O tolerance allows direct interfacing with legacy automotive sensors and actuators, and its CAN controller meets ISO 11898-1 requirements for physical layer communication integrity.
How much user-accessible flash and RAM does the S9S12XS128J1VAA provide?
The S9S12XS128J1VAA provides 128 KB of on-chip flash memory (all user-programmable, with 1 KB erasable sectors) and 8 KB of on-chip SRAM. Flash includes dedicated security byte locations and supports in-application programming (IAP). RAM is fully accessible for variables, stack, and heap, with retention in Stop mode when VDD remains active - essential for fast wake-up in always-on automotive modules.
S9S12XS128J1VAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- CANbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.72V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12XS128J1VAA FAQ
1.How can I place an order for S9S12XS128J1VAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12XS128J1VAA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S9S12XS128J1VAA reliable?
The price and inventory of S9S12XS128J1VAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12XS128J1VAA is usually 5 days.
3.What payment methods are accepted for S9S12XS128J1VAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12XS128J1VAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12XS128J1VAA?
S9S12XS128J1VAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12XS128J1VAA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S9S12XS128J1VAA?
For technical support, including S9S12XS128J1VAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12XS128J1VAA requirements.
6.How does Aetrix verify that S9S12XS128J1VAA is sourced from the original manufacturer or authorized distributors?
All S9S12XS128J1VAA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S9S12XS128J1VAA meets industry standards.
7.What is the process for return or replacement of S9S12XS128J1VAA?
All S9S12XS128J1VAA units undergo pre-shipment inspection (PSI). If there is an issue with S9S12XS128J1VAA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S9S12XS128J1VAA part is unused and in its original packaging.
Return procedure for S9S12XS128J1VAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S9S12XS128J1VAA Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
