NXP Semiconductors MC9S08DV16ACLC

Overview

MC9S08DV16ACLC from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB flash, 3 KB RAM, 40-MHz CPU (20-MHz bus), integrated MSCAN v2.0A/B controller, and 12-bit ADC with temperature sensor - used in automotive body control modules requiring CAN communication and real-time I/O management.

For engineers reviewing the MC9S08DV16ACLC datasheet, MC9S08DV16ACLC pinout, MC9S08DV16ACLC application, or MC9S08DV16ACLC equivalent, key selection criteria include flash size, CAN protocol compliance, stop-mode power consumption, ADC resolution and conversion time, and background debug interface support.

Technical Context

The MC9S08DV16ACLC implements the HCS08 CPU 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 16-channel 12-bit ADC (2.5 μs conversion), two analog comparators with bandgap reference option, dual SCI supporting LIN 2.0/SAE J2602, SPI, I²C, two TPM modules (6+2 channels), RTC with 1-kHz low-power oscillator, and full-featured MSCAN module with five receive buffers and programmable identifier filters.

Key Specifications

Pinout & Package

MC9S08DV16ACLC is packaged in a 48-pin LQFP (7×7 mm) with 53 general-purpose I/O pins and 1 input-only pin. All I/O pins support configurable pull devices, hysteresis, slew rate, and drive strength; 24 pins support edge-selectable interrupts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DV16ACLC, S9S08DV16F1CLK offers extended reliability for under-hood environments, while MC9S08DZ128CLC provides scalable memory and EEPROM for evolving feature sets - neither is pin-compatible, but both share identical peripheral register mapping and toolchain compatibility.

Availability

MC9S08DV16ACLC is available at Aetrix Electronics and suitable for automotive body electronics, door module control, and roof module applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for MC9S08DV16ACLC 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 formed from the spin-off of Freescale Semiconductor and Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S08DV16ACLC belongs to the HCS08 DV-series microcontrollers, designed specifically for cost-sensitive, low-power automotive body electronics requiring CAN communication, mixed-signal integration, and robust debug capabilities.

FAQ

What is the maximum bus frequency supported by the MC9S08DV16ACLC?

The MC9S08DV16ACLC supports a maximum bus frequency of 20 MHz, derived from its 40-MHz HCS08 CPU core via a configurable divider. This bus speed is maintained across all operating modes including Run, Wait, and Stop - enabling deterministic timing for CAN, ADC, and timer peripherals without clock gating penalties. The MC9S08DV16ACLC achieves this using its Multi-Purpose Clock Generator (MCG) in FLL or PLL mode with internal or external reference sources.

Does the MC9S08DV16ACLC include a hardware watchdog timer?

Yes, the MC9S08DV16ACLC includes a Computer Operating Properly (COP) watchdog timer with configurable timeout and dual clock source options: it can run from either the main bus clock or a dedicated 1-kHz internal low-power oscillator. This ensures reliable system recovery even during low-power stop modes. The COP module is enabled via software configuration in the SOPT1 register and supports reset or interrupt generation upon timeout - a critical feature for automotive safety compliance in the MC9S08DV16ACLC.

What type of CAN protocol does the MC9S08DV16ACLC support?

The MC9S08DV16ACLC supports Controller Area Network (CAN) protocol version 2.0A and 2.0B, including both standard (11-bit) and extended (29-bit) identifier formats, remote transmission requests, and flexible acceptance filtering (2×32-bit, 4×16-bit, or 8×8-bit). Its MSCAN module features five receive buffers with FIFO behavior and automatic message handling - making the MC9S08DV16ACLC suitable for automotive body networks where deterministic latency and message prioritization are essential.

Can the MC9S08DV16ACLC operate without an external crystal?

Yes, the MC9S08DV16ACLC can operate without an external crystal by using its internal reference clock (IRC) with factory-trimmed frequency accuracy (±1.5% with temperature compensation). The Multi-Purpose Clock Generator (MCG) supports FLL mode locked to the IRC, enabling full functionality including CAN, ADC, and timers. While external crystals (1–16 MHz or 31–38 kHz) improve timing precision, the MC9S08DV16ACLC's internal clock eliminates BOM cost and layout complexity for less timing-critical applications.

How many ADC channels and what resolution does the MC9S08DV16ACLC provide?

The MC9S08DV16ACLC integrates a 12-bit successive-approximation ADC with 16 input channels, including dedicated connections for an on-die temperature sensor and internal bandgap reference. Conversion time is fixed at 2.5 μs per sample, supporting up to 400 kSPS aggregate throughput. The ADCSC1 and ADCSC2 registers allow hardware-triggered conversions and automatic compare functions - making the MC9S08DV16ACLC well-suited for real-time sensor monitoring in automotive control units.