MC9S08DV128CLH - 8-Bit 40MHz HCS08 MCU 128KB Flash 64-LQFP | NXP
MPN: MC9S08DV128CLH ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.72 | $6.72 |
| 10 | $6.05 | $60.50 |
| 100 | $5.45 | $545.00 |
| 500 | $4.91 | $2,455.00 |
| 1,000 | $4.42 | $4,420.00 |
MC9S08DV128CLH Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), working memory (RAM), and a rich set of peripheral interfaces (timers, ADC, communication ports) on one silicon die. Within the broader semiconductor taxonomy, an 8-bit MCU sits below 32-bit microcontrollers in computational throughput but above discrete logic in integration, making it the workhorse of cost-sensitive, deterministic, real-time control applications such as automotive body electronics, motor control, and CAN-connected industrial nodes.
Key features of the MC9S08DV128CLH include an integrated CAN (Controller Area Network) module suitable for in-vehicle networking, 53 general-purpose I/O pins for flexible peripheral mapping, an external oscillator interface for precise clocking, and a low-power architecture targeted at industrial and automotive environments. The 128KB Flash supports in-application reprogramming via the standard HCS08 background debug mode, while the BGND instruction enables non-intrusive debug and in-circuit programming workflows familiar to HC(S)08 developers.
Architecturally, the device uses the well-established HCS08 CPU core with an enhanced instruction pipeline, dedicated on-chip debug logic, and a wide peripheral mix — including timers, ADC, SCI/SPI/IIC, and CAN — connected via a peripheral bus to the CPU. The 20 MHz internal bus keeps peripheral access deterministic and supports the real-time interrupt response that HCS08 designs are known for. The 10x10 mm LQFP-64 footprint provides ample PCB escape routing for the 53 GPIO pins plus supply and ground pins.
Typical applications include automotive body control modules, CAN node endpoints (e.g., door modules, seat controllers, climate nodes), industrial CANopen/DeviceNet slave nodes, BLDC and stepper motor control, and appliance control boards where the combination of CAN connectivity, real-time response, and 8-bit cost efficiency is decisive.
When designing with the MC9S08DV128CLH, ensure that the external oscillator components match the chosen bus frequency (40 MHz CPU / 20 MHz bus) and that the CAN bus termination and transceiver are sized to the network's bit rate. Plan Flash endurance (typically 10K cycles minimum) and retention budget at the start of firmware architecture, and reserve background-debug pins for in-circuit programming access during prototype bring-up.
This page consolidates distributor pricing, parametric drop-in alternatives within the S08 family, application guidance, and practical design notes that complement the manufacturer datasheet with information tailored to engineers evaluating this part for new designs or as a long-term production component.
Drop-in alternatives for MC9S08DV128CLH — 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 MC9S08DV128CLH (same form factor and footprint) — differing in Core, Package, Instruction Set, RAM Size, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08DV96CLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08DV64CLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08DV32CLH
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →MC9S08DV128MLH
✅ Drop-In✓ In Stock
$7.1 / Unit
View Datasheet →S9S08DZ128F2MLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08DV128CLH Maximum Ratings & Electrical Characteristics
| Core Architecture | HCS08 (enhanced S08 core) |
| Data Bus Width | 8-bit |
| CPU Frequency | 40 MHz |
| Internal Bus Frequency | 20 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 6 KB (6K x 8) |
| Number of I/O Pins | 53 |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Oscillator Type | External |
| Instruction Set | HC08 with BGND addition |
| Interrupt Sources | Up to 32 |
| Integrated CAN Module | Yes (CAN 2.0) |
| Packaging | Tray |
| RoHS Status | Compliant |
MC9S08DV128CLH Pin Configuration
| Pin 1 | PTD0/TPM1CH0 — Port D bit 0 / TPM1 channel 0 (PWM/timer) |
| Pin 2 | PTD1/TPM1CH1 — Port D bit 1 / TPM1 channel 1 (PWM/timer) |
| Pin 3 | PTD2/TPM1CH2 — Port D bit 2 / TPM1 channel 2 |
| Pin 4 | PTD3/TPM1CH3 — Port D bit 3 / TPM1 channel 3 |
| Pin 5 | VDD — Digital supply voltage |
| Pin 6 | VSS — Digital ground |
| Pin 7 | EXTAL — External oscillator input |
| Pin 8 | XTAL — External oscillator output |
| Pin 9 | RESET — External reset input (active low) |
| Pin 10 | BKGD/MS — Background debug / mode select |
| Pin 11 | PTA0 — Port A bit 0 |
| Pin 12 | PTA1 — Port A bit 1 |
| Pin 13 | PTA2 — Port A bit 2 |
| Pin 14 | PTA3 — Port A bit 3 |
| Pin 15 | PTA4 — Port A bit 4 |
| Pin 16 | PTA5 — Port A bit 5 |
| Pin 17 | PTA6 — Port A bit 6 |
| Pin 18 | PTA7 — Port A bit 7 |
| Pin 19 | PTB0 — Port B bit 0 |
| Pin 20 | PTB1 — Port B bit 1 |
| Pin 21 | PTB2 — Port B bit 2 |
| Pin 22 | PTB3 — Port B bit 3 |
| Pin 23 | PTB4 — Port B bit 4 |
| Pin 24 | PTB5 — Port B bit 5 |
| Pin 25 | PTB6 — Port B bit 6 |
| Pin 26 | PTB7 — Port B bit 7 |
| Pin 27 | PTC0 — Port C bit 0 |
| Pin 28 | PTC1 — Port C bit 1 |
| Pin 29 | PTC2 — Port C bit 2 |
| Pin 30 | PTC3 — Port C bit 3 |
| Pin 31 | PTC4 — Port C bit 4 |
| Pin 32 | PTC5 — Port C bit 5 |
| Pin 33 | PTC6 — Port C bit 6 |
| Pin 34 | PTC7 — Port C bit 7 |
| Pin 35 | CAN_TX — CAN transmit output |
| Pin 36 | CAN_RX — CAN receive input |
| Pin 37 | PTD4 — Port D bit 4 |
| Pin 38 | PTD5 — Port D bit 5 |
| Pin 39 | PTD6 — Port D bit 6 |
| Pin 40 | PTD7 — Port D bit 7 |
| Pin 41 | PTE0 — Port E bit 0 |
| Pin 42 | PTE1 — Port E bit 1 |
| Pin 43 | PTE2 — Port E bit 2 |
| Pin 44 | PTE3 — Port E bit 3 |
| Pin 45 | PTE4 — Port E bit 4 |
| Pin 46 | PTE5 — Port E bit 5 |
| Pin 47 | PTE6 — Port E bit 6 |
| Pin 48 | PTE7 — Port E bit 7 |
| Pin 49 | PTF0 — Port F bit 0 |
| Pin 50 | PTF1 — Port F bit 1 |
| Pin 51 | PTF2 — Port F bit 2 |
| Pin 52 | PTF3 — Port F bit 3 |
| Pin 53 | PTF4 — Port F bit 4 |
| Pin 54 | PTF5 — Port F bit 5 |
| Pin 55 | PTF6 — Port F bit 6 |
| Pin 56 | PTF7 — Port F bit 7 |
| Pin 57 | PTG0 — Port G bit 0 |
| Pin 58 | PTG1 — Port G bit 1 |
| Pin 59 | PTG2 — Port G bit 2 |
| Pin 60 | PTG3 — Port G bit 3 |
| Pin 61 | VDD — Digital supply voltage (second rail) |
| Pin 62 | VSS — Digital ground (second rail) |
| Pin 63 | NC — Not connected (per datasheet) |
| Pin 64 | NC — Not connected (per datasheet) |
Typical Applications
MC9S08DV128CLH is suitable for 6 applications: Automotive Body Control Module, Industrial CANopen Slave Node, BLDC and Stepper Motor Control, Appliance Control Board, HVAC Climate Control Node, CAN-Connected Sensor Hub.
Automotive Body Control Module
The MC9S08DV128CLH's integrated CAN 2.0 controller, 53 GPIO, and 128KB Flash make it a strong fit for automotive body control modules that drive lighting, wipers, mirrors, and door-lock actuators. Its 40 MHz HCS08 core with deterministic 8-bit interrupt response handles multiplexed switch inputs and PWM outputs in real time. The 64-LQFP (10x10 mm) package fits within the typical BCM housing envelope while exposing enough I/O for body-domain wiring. Placed alongside an external CAN transceiver (such as the NXP TJA1050), the MCU serves as a CAN node on the vehicle's body network, executing periodic message transmission and event-driven actuation within millisecond timing budgets. Compared with 32-bit BCM MCUs, this part offers lower unit cost and simpler firmware development for fixed-function body tasks.
Recommended
Industrial CANopen Slave Node
For industrial CANopen slave devices such as I/O blocks, valve manifolds, and sensor hubs, the MC9S08DV128CLH supplies sufficient Flash (128KB) to host a CiA 401/402/406 CANopen stack plus application logic. Its 6KB RAM accommodates object dictionary buffers and PDO handling, while the on-chip CAN 2.0 controller with 32-message buffer depth supports CANopen's 11-bit identifier-based PDO mapping. The 40 MHz CPU provides the throughput needed for 1 Mbps bus rates with minimal software overhead. With an external CAN transceiver and isolated DC-DC, the same 64-LQFP design can be reused across multiple slave-node SKUs by changing firmware only, simplifying inventory.
Recommended
BLDC and Stepper Motor Control
The MC9S08DV128CLH's HCS08 core at 40 MHz, multi-channel timers, and PWM-capable GPIO pins make it suitable for BLDC and stepper motor commutation in appliances, small industrial drives, and HVAC dampers. With 53 GPIO, the MCU can drive a 3-phase inverter via PWM channels, sample current via ADC, and read Hall/encoder feedback simultaneously. The 128KB Flash stores state-machine commutation logic, PI current loops, and fault handling without external memory. Compared with dedicated motor-control ICs, this part allows firmware-tunable control profiles and CAN-based remote command — a strong advantage for connected appliances.
Recommended
Appliance Control Board
Washing machines, dishwashers, and ovens benefit from the MC9S08DV128CLH's combination of CAN connectivity, ample Flash for user-interface and safety logic, and 8-bit cost efficiency. The MCU can drive a 7-segment or graphical display, scan a capacitive key matrix, and time motor/valve actuation within a single 64-LQFP device. Its mature HCS08 tool chain and CodeWarrior legacy support accelerate firmware development for appliance OEMs migrating from older HC08 designs. With 53 GPIO and integrated timers, the part replaces multiple discrete timers and logic ICs typical of legacy appliance boards, reducing BOM cost and PCB area.
Recommended
HVAC Climate Control Node
In automotive HVAC climate modules, the MC9S08DV128CLH manages blower speed, blend-door position, and temperature sensor sampling while participating in CAN-based climate control networks. The 128KB Flash holds lookup tables for nonlinear blend-door curves and PWM-vs-airflow profiles. The HCS08's deterministic interrupt response ensures stepper motor commutation remains glitch-free under CAN message bursts. With 53 GPIO available, the MCU can directly drive multiple stepper drivers and read NTC thermistor arrays without external analog switches. Compared with 16-bit alternatives, this part achieves comparable HVAC functionality at a lower unit cost.
Recommended
CAN-Connected Sensor Hub
Industrial and building-automation sensor hubs aggregating multiple analog/digital sensors onto a CAN backbone can use the MC9S08DV128CLH as the central controller. The MCU's 53 GPIO accept SPI/IIC sensor chains via bit-banging or hardware peripherals, while the 6KB RAM buffers periodic sensor readings. The on-chip CAN controller publishes aggregated sensor frames at 250 kbps or 500 kbps, reducing bus traffic compared with individual sensor CAN nodes. With 128KB Flash, custom calibration tables and MODBUS/CiA profiles can co-exist with sensor-firmware. The 64-LQFP footprint fits inside IP65 enclosures typical of industrial sensor hubs.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08DV128CLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08DV96CLH | MC9S08DV64CLH | MC9S08DV32CLH | MC9S08DV128MLH | S9S08DZ128F2MLH |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same |
| Program Memory (Flash) | 128 KB | 96 KB (-25%) | 64 KB (-50%) | 32 KB (-75%) | 128 KB (same) | 128 KB (same) |
| RAM Size | 6 KB | 6 KB (same) | 4 KB (-33%) | 2 KB (-67%) | 6 KB (same) | 8 KB (+33%) |
| CPU Core | HCS08 (40 MHz) | HCS08 (40 MHz) | HCS08 (40 MHz) | HCS08 (40 MHz) | HCS08 (40 MHz) | S9S08 (40 MHz, low-power) |
| Integrated CAN | Yes (CAN 2.0) | Yes (CAN 2.0) | Yes (CAN 2.0) | Yes (CAN 2.0) | Yes (CAN 2.0) | Yes (CAN 2.0) |
Key Differentiators
- Balanced Flash/RAM/CAN integration in 64-LQFP at low unit cost (vs MC9S08DV64CLH)
- Mature HCS08 tool chain and CodeWarrior legacy support (vs MC9S08DV128MLH)
- Long-term die-bank availability through authorized distributors (vs S9S08DZ128F2MLH)
Design Notes
Place 100 nF decoupling capacitors as close as possible to every VDD pin and a bulk 10 uF tantalum or ceramic on the supply rail feeding the MC9S08DV128CLH. Multiple VDD/VSS pins are present on the 64-LQFP — each must be decoupled. Estimated: at 40 MHz CPU clock with all peripherals active, the MCU core current is in the low tens of mA; verify against the datasheet DC characteristics for the chosen VDD.
Route the EXTAL/XTAL traces short and symmetric to minimize oscillator distortion. Place the load capacitors within a few millimeters of the package pins and guard them with a ground pour. The BKGD/MS pin must be accessible for in-circuit programming — keep a 2x5 header footprint or test pad array in the PCB design for production programming. Avoid routing high-speed signals (CAN, PWM) under the crystal area.
Do not exceed the absolute maximum VDD rating during Flash programming — in-application reprogramming typically requires VDD within a tight tolerance window. The CAN_TX output requires an external transceiver; do not connect it directly to a bus without isolation. Always issue a software reset after a watchdog timeout to clear pending interrupt flags that could otherwise lock the CAN module.
Estimated: with the 64-LQFP (10x10 mm) package at moderate GPIO toggling and 40 MHz CPU activity, total power dissipation is well under 1 W — no heatsink required for typical automotive/industrial environments. For continuous 40 MHz operation in high-ambient (>85 C) enclosures, follow the layout guidance to spread the copper thermal relief around the exposed die flag. Junction-to-ambient thermal resistance should be verified from the package thermal model in the datasheet before final sign-off.
Compliance Information
RoHS and lead-free status per NXP/Freescale product documentation; AEC-Q100 status not explicitly stated in the verified web data — verify with NXP for automotive use cases.