NXP Semiconductors MC9S08DV48AMLF

Overview

MC9S08DV48AMLF from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 48 KB flash, 3 KB RAM, 53 GPIO pins, and integrated CAN 2.0A/B controller, ADC, SPI, I²C, SCI, TPM, and RTC - deployed in automotive body control modules requiring deterministic real-time response.

For engineers reviewing the MC9S08DV48AMLF datasheet, MC9S08DV48AMLF pinout, MC9S08DV48AMLF application, or MC9S08DV48AMLF equivalent, key selection criteria include flash size, CAN protocol compliance, low-power stop modes, on-chip debug interface, and LQFP-48 package compatibility with space-constrained PCB layouts.

Technical Context

The MC9S08DV48AMLF implements the HCS08 CPU core running at up to 40 MHz (20 MHz bus), supporting 32 interrupt/reset sources and BGND instruction for single-wire background debug. Its Multi-Purpose Clock Generator (MCG) provides FLL/PLL operation with factory-trimmed internal reference and external crystal support from 1–16 MHz.

On-chip peripherals include a 12-bit, 16-channel ADC with 2.5 µs conversion time and temperature sensor, two analog comparators, MSCAN module compliant with CAN 2.0A/B, dual SCI interfaces supporting LIN 2.0/SAE J2602, and two TPM modules (6-channel + 2-channel) for PWM and input capture - all operating across run, wait, and stop3 modes.

Key Specifications

Pinout & Package

MC9S08DV48AMLF is housed in a 48-pin low-profile quad flat-pack (LQFP) measuring 7×7 mm with 0.5 mm pitch. Pin assignments are defined per Freescale Document MC9S08DV60 Series Data Sheet, Rev 3 (June 2008), Section 2.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DV48AMLF, MC9S08DV60ACLF offers +12 KB flash without layout change, while S9S08DZ60F1MLF delivers higher reliability certification and modern clock architecture - both retain CAN 2.0A/B, 12-bit ADC, and LQFP-48 compatibility but differ in roadmap longevity and stress-test margins.

Availability

MC9S08DV48AMLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN gateways, smart power distribution modules, and off-road telematics nodes requiring stable component supply across extended product lifecycles.

Supply support for MC9S08DV48AMLF 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 Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The HCS08 microcontroller family - including MC9S08DV48AMLF - was designed for cost-sensitive, real-time embedded control in automotive body electronics and industrial networking where CAN integration, low-power operation, and debug simplicity are critical.

FAQ

What is the maximum bus frequency supported by the MC9S08DV48AMLF?

The MC9S08DV48AMLF supports a maximum bus frequency of 20 MHz, derived from its 40-MHz HCS08 CPU core via an internal divide-by-2 mechanism. This bus speed ensures deterministic timing for peripheral access and CAN bit-rate generation up to 1 Mbps, as validated in Freescale's MC9S08DV60 Series Data Sheet, Rev 3. The MC9S08DV48AMLF maintains full peripheral functionality at this rate, including ADC conversions and TPM PWM updates.

Does the MC9S08DV48AMLF include an integrated CAN transceiver?

No, the MC9S08DV48AMLF integrates only the CAN protocol controller (MSCAN module) compliant with ISO 11898-1 (CAN 2.0A/B), not the physical layer transceiver. An external CAN transceiver such as the TJA1042 or MCP2551 must be used to drive the differential CAN_H/CAN_L bus lines. The MC9S08DV48AMLF provides TX and RX signals (PTB3/PTB2) compatible with standard high-speed transceivers.

What package type and dimensions does the MC9S08DV48AMLF use?

The MC9S08DV48AMLF uses a 48-pin low-profile quad flat-pack (LQFP) package measuring 7 mm × 7 mm with 0.5 mm lead pitch and exposed thermal pad. It is RoHS-compliant and lead-free, matching the mechanical specifications in Freescale Document MC9S08DV60 Series Data Sheet, Appendix C. This package enables compact placement in automotive control units where board space and thermal dissipation are constrained.

Can the MC9S08DV48AMLF operate from an internal clock source without an external crystal?

Yes, the MC9S08DV48AMLF can operate using its internal reference clock (IRC), factory-trimmed to ±1.5% accuracy via the MCG module's FLL mode. This eliminates the need for an external crystal in non-CAN or non-precision-timing applications. However, for CAN communication, an external 8 MHz or 16 MHz crystal is required to meet bit-timing tolerance requirements - a constraint explicitly documented for the MC9S08DV48AMLF in the clock source section of the datasheet.

How much user-accessible RAM does the MC9S08DV48AMLF provide?

The MC9S08DV48AMLF provides 3 KB (3072 bytes) of on-chip random-access memory (RAM) mapped into the MCU's linear address space. This RAM is fully accessible for variables, stack, heap, and peripheral buffers - confirmed in the "On-Chip Memory" section of the MC9S08DV60 Series Data Sheet, which applies identically to the MC9S08DV48AMLF variant. No portion is reserved exclusively for debug or boot ROM.