NXP Semiconductors MC9S08DV48ACLF

Overview

MC9S08DV48ACLF from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 48 KB flash, 3 KB RAM, and integrated MSCAN, ADC, TPM, SCI, SPI, IIC, RTC, and analog comparators. It operates at up to 40 MHz CPU / 20 MHz bus frequency and supports CAN 2.0A/B in automotive body control modules.

For engineers reviewing the MC9S08DV48ACLF datasheet, MC9S08DV48ACLF pinout, MC9S08DV48ACLF application, or MC9S08DV48ACLF equivalent, key selection criteria include flash size, CAN interface compliance, real-time counter capability, low-power stop modes, and background debug support for embedded automotive firmware development.

Technical Context

The MC9S08DV48ACLF implements the S08CPUV3 core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its Multi-Purpose Clock Generator (MCG) provides FLL and PLL modes with factory-trimmed internal reference clock and ±1.5% FLL accuracy using temperature compensation.

On-chip peripherals include a 12-bit, 16-channel ADC with 2.5 μs conversion time and internal temperature sensor; two analog comparators with bandgap reference option; and a Freescale Controller Area Network (MSCAN) module compliant with ISO 11898-1, supporting standard/extended frames, five receive buffers with FIFO, and programmable identifier filters (2×32-bit, 4×16-bit, or 8×8-bit).

Key Specifications

Pinout & Package

MC9S08DV48ACLF is housed in a 48-pin LQFP package (7×7 mm), with 53 general-purpose I/O pins and one input-only pin. All I/O pins support configurable pull devices, hysteresis, slew rate, and drive strength. Pin functions are defined per port (A–G) and mapped to peripheral modules including ADC, SCI, SPI, IIC, TPM, MSCAN, and RTC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit CAN microcontroller applications.

Compared with S9S08DZ48F2MLC and MC9S08DZ48CLC, the MC9S08DV48ACLF delivers optimal balance of CAN feature depth, debug capability, and power efficiency for mid-tier automotive body electronics - especially where MSCAN's FIFO buffering and filter flexibility reduce host CPU load.

Availability

MC9S08DV48ACLF is available at Aetrix Electronics and suitable for automotive body control modules, door actuator systems, roof modules, and seat position interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08DV48ACLF 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.

The MC9S08DV48ACLF belongs to the HCS08 DV-series, designed specifically for cost-sensitive, CAN-enabled automotive body electronics requiring high integration, low power, and robust debug support.

FAQ

What is the maximum bus frequency supported by the MC9S08DV48ACLF?

The MC9S08DV48ACLF supports a maximum bus frequency of 20 MHz. This value directly governs peripheral timing, including SCI baud generation, TPM counter resolution, and SPI clock rates. The CPU core runs at up to 40 MHz, with the bus clock derived via internal dividers from the MCG output. Operation at 20 MHz bus ensures reliable timing margins across the full −40°C to +125°C automotive temperature range.

Does the MC9S08DV48ACLF include an integrated CAN controller, and what version does it support?

Yes, the MC9S08DV48ACLF integrates the Freescale Controller Area Network (MSCAN) module, which complies fully with ISO 11898-1 and supports CAN protocol Version 2.0 A and B. It handles both standard (11-bit) and extended (29-bit) data frames, supports remote frames, and includes five receive buffers with FIFO storage and flexible identifier acceptance filters (configurable as 2×32-bit, 4×16-bit, or 8×8-bit).

How much on-chip flash and RAM does the MC9S08DV48ACLF provide?

The MC9S08DV48ACLF provides 48 KB of on-chip flash memory and 3 KB of on-chip RAM. Flash supports read/program/erase operations across the full operating voltage and temperature range, with block protection and security features. RAM is used for data storage, stack operations, and runtime variables, and remains accessible in wait mode but not in stop modes unless configured for retention.

What debug interface does the MC9S08DV48ACLF use, and how many pins does it require?

The MC9S08DV48ACLF uses a single-wire background debug interface accessed via the BKGD/MS pin. This interface requires only one dedicated pin and enables full in-circuit emulation, real-time bus capture, and non-intrusive firmware debugging without occupying additional I/O resources or requiring JTAG hardware. It is compatible with standard Freescale/NXP BDM tools and IDEs.

Is the MC9S08DV48ACLF qualified for automotive applications, and what temperature range does it support?

Yes, the MC9S08DV48ACLF is AEC-Q100 qualified for automotive applications and operates across the extended temperature range of −40°C to +125°C. Its design includes low-voltage detection with selectable trip points, watchdog COP reset with backup 1-kHz clock, illegal opcode/address detection, and flash block protection - all aligned with automotive functional safety expectations for body electronics.