NXP Semiconductors MC9S08SE8VWLR

Overview

MC9S08SE8VWLR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 bytes RAM, 20 MHz CPU, and integrated peripherals including SCI, 10-channel 10-bit ADC, two TPM modules, RTC, and KBI - designed for cost-sensitive industrial control, sensor interface, and embedded automation applications.

For engineers reviewing the MC9S08SE8VWLR datasheet, MC9S08SE8VWLR pinout, MC9S08SE8VWLR application, or MC9S08SE8VWLR equivalent, key selection criteria include bus frequency support (1–10 MHz), low-power stop modes (down to 1.4 µA in Stop2), internal clock source precision (±0.2% resolution), LIN-capable SCI, and 28-pin SOIC packaging with verified thermal resistance (θJA = 70 °C/W).

Technical Context

The MC9S08SE8VWLR implements the HCS08 CPU core with HC08 instruction set extension (BGND), supporting up to 32 interrupt/reset sources and operating at 20 MHz CPU clock with 10 MHz bus frequency. Its ICS module integrates a frequency-locked loop (FLL) with factory-trimmed 39.0625 kHz internal reference and user-trimmable range (31.25–39.06 kHz), enabling stable bus frequencies from 1 MHz to 10 MHz without external crystal.

Peripherals include a full-duplex SCI with LIN master break generation and slave break detection, a 10-channel 10-bit ADC with 2.5 µs conversion time and on-chip temperature sensor (1.7 mV/°C), dual TPM modules (TPM1: 2-channel, TPM2: 1-channel), real-time counter with binary/decimal prescaler, and 8-pin keyboard interrupt module - all operable in Stop3 mode.

Key Specifications

Pinout & Package

MC9S08SE8VWLR is packaged in a 28-pin SOIC (Case 751F) with 0.3 inch body width, 1.27 mm pitch, and JEDEC MS-012AC compliant footprint. Pin functions are validated per Rev. 4 datasheet Figure 2 and Table 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AW60CFUE and S9KEAZ128AMLH, the MC9S08SE8VWLR delivers optimal cost/performance for simple industrial control where 8 KB flash, LIN/SCI, and sub-2 µA stop current are sufficient - avoiding over-engineering with unnecessary CAN, USB, or 32-bit overhead.

Availability

MC9S08SE8VWLR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, programmable power supply monitors, and embedded PLC I/O modules requiring stable component supply and long-lifecycle support.

Supply support for MC9S08SE8VWLR 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, with deep heritage in microcontrollers dating to the Motorola 6800 family.

The MC9S08SE8VWLR belongs to the HCS08-based SE-series MCU family, engineered for cost-sensitive, low-power embedded control in industrial automation, building management, and appliance applications - emphasizing integration, debug simplicity, and thermal reliability in SOIC packaging.

FAQ

What is the maximum bus frequency supported by the MC9S08SE8VWLR?

The MC9S08SE8VWLR supports a maximum bus frequency of 10 MHz, achieved via its internal clock source (ICS) module's frequency-locked loop (FLL) when configured with appropriate trim settings and reference clock. This is confirmed in Section 3.8 of the Rev. 4 datasheet, where fdco_t is specified up to 20 MHz (DCO output), yielding 10 MHz bus clock in standard configurations. The MC9S08SE8VWLR does not support higher bus speeds.

Does the MC9S08SE8VWLR support LIN communication natively?

Yes, the MC9S08SE8VWLR supports LIN 2.0 communication natively through its SCI module, which includes hardware-assisted extended break generation (for LIN master) and extended break detection (for LIN slave). This capability is explicitly documented in the "Peripherals" section of the Rev. 4 datasheet and requires no external transceiver for basic LIN physical layer signaling when paired with a standard LIN transceiver IC.

What is the lowest achievable current consumption in stop mode for the MC9S08SE8VWLR?

The lowest verified current consumption for the MC9S08SE8VWLR is 1.4 µA typical in Stop2 mode at 5 V and –40 °C to +85 °C ambient, per Table 8 of the Rev. 4 datasheet. With RTC enabled, the adder is 300 nA - resulting in ~1.7 µA total. Stop3 mode draws 1.61 µA typical but adds LVD/oscillator overhead if those features are activated.

Can the MC9S08SE8VWLR operate without an external crystal?

Yes, the MC9S08SE8VWLR can operate without an external crystal using its internal clock source (ICS) module, which includes a factory-trimmed 39.0625 kHz reference and FLL to generate bus frequencies from 1 MHz to 10 MHz. External crystal is optional and only required for applications demanding higher frequency stability or specific timing accuracy beyond ±2% over voltage/temperature.

Is the MC9S08SE8VWLR pin-compatible with other members of the MC9S08SE8 series?

Yes, the MC9S08SE8VWLR shares identical pinout and package (28-pin SOIC) with other MC9S08SE8 variants such as MC9S08SE8CP, as confirmed in Table 1 and Figures 2–3 of the Rev. 4 datasheet. All 28-pin SOIC versions use the same pin assignments, allowing direct substitution within the same package type - though firmware must validate memory size (8 KB flash) and feature enablement.