S9S08AW8AE0CLC - 8-bit S08 MCU, 8KB Flash, 40MHz | NXP
MPN: S9S08AW8AE0CLC ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.68 | $168.00 |
| 500 | $1.51 | $755.00 |
| 1,000 | $1.35 | $1,350.00 |
S9S08AW8AE0CLC Overview
An 8-bit microcontroller is an integrated circuit that combines a processor core, non-volatile Flash memory, SRAM, and peripherals such as timers, serial communication modules, and watchdog circuits on a single chip. Within the embedded systems hierarchy, an MCU sits at the lowest control level: it executes firmware that drives sensors, actuators, and communication links in products ranging from household appliances to automotive body modules.
Key features of the S9S08AW8AE0CLC include the 40MHz HCS08 CPU with HC08 instruction set plus the added BGND instruction, a supply voltage range of 2.7V to 5.5V, and integrated system protection peripherals: low-voltage detection (LVD), power-on reset (POR), pulse-width modulation (PWM), and a watchdog timer (WDT). Connectivity is handled by on-chip I2C, SCI (UART), and SPI modules.
The AW series belongs to NXP's (formerly Freescale Semiconductor) low-cost, high-performance HCS08 family, which spans Flash densities from 4KB to 60KB and multiple package options while keeping the same enhanced S08 core. This part variant is automotive qualified and rated for operation from -40C to +85C, making it suitable for harsh vehicle environments such as body electronics, lighting control, and motor-driven subsystems.
Typical applications include automotive body control modules, door and seat controllers, small appliance and industrial control boards, and battery-charger supervision, where low cost, 5V tolerance, and robust reset protection matter more than raw processing power.
A key design consideration is the small 768-byte RAM: write firmware to keep stack depth and buffer usage minimal, and plan for the -40C to +85C automotive rating in your thermal budget. The 2.7V to 5.5V supply range allows direct operation from a regulated 5V or 3.3V rail.
This page synthesizes distributor pricing, drop-in alternatives from the same NXP S08 family, practical design notes, and lifecycle information not found in any single datasheet.
Drop-in alternatives for S9S08AW8AE0CLC — 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 S9S08AW8AE0CLC (same form factor and footprint) — differing in Instruction Set, Package, Program Memory Size, ADC Channels, ADC Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08AW32CFJE
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S08AW16CFJE
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
S9S08DZ32F1MLC
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08DV32F1MLC
✅ Drop-In✓ In Stock
$2.74 / Unit
View Datasheet →MC9S08DZ32AMLH
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MC9S08AC8CFJE
✅ Drop-In✓ In Stock
$2.48 / Unit
View Datasheet →S9S08AW8AE0CLC Maximum Ratings & Electrical Characteristics
| Core Processor | S08 (HCS08) |
| Core Size | 8-bit |
| CPU Speed | 40 MHz |
| Program Memory Size | 8 KB (8K x 8) FLASH |
| RAM Size | 768 x 8 |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O | 22 |
| Connectivity | I2C, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| Operating Temperature | -40C to +85C |
| Qualification | Automotive Qualified (AEC-Q100 per distributor data) |
| Package | 32-LQFP (7x7 mm), 0.8 mm pitch, gull-wing terminals |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS Compliant |
| Lifecycle Status | End of Life (per NXP product page) |
| Instruction Set | HC08 with added BGND instruction |
S9S08AW8AE0CLC 32-lqfp (7x7 mm), 0.8 mm pitch, gull-wing terminals Pin Configuration Guide
Pin configuration for S9S08AW8AE0CLC (32-lqfp (7x7 mm), 0.8 mm pitch, gull-wing terminals package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for S9S08AW8AE0CLC.
Refer to the datasheet for full pin configuration.
Typical Applications
S9S08AW8AE0CLC is suitable for 6 applications: Automotive Body Control Modules, Industrial Control and Sensor Nodes, Small Appliance and Home Device Control, Battery Charger Supervision, Automotive Lighting Control, Door, Seat, and Comfort Controllers.
Automotive Body Control Modules
The S9S08AW8AE0CLC fits automotive body electronics because it combines an automotive-qualified AW-series die, a -40C to +85C rating, and 5V-tolerant 2.7V to 5.5V operation on a single 8-bit core. In a door module, the 40MHz S08 CPU scans switch matrices, drives PWM outputs for window-lift or LED lighting loads, and communicates over the SCI-linked LIN or I2C/SPI peripherals to gateway nodes. The integrated LVD, POR, and watchdog timer provide the reset robustness demanded in vehicles, while 8KB Flash holds compact state-machine firmware. Its 32-LQFP 7x7 mm footprint keeps the board small and cost low.
Recommended
Industrial Control and Sensor Nodes
In industrial panels and sensor nodes, the S9S08AW8AE0CLC offers deterministic 8-bit control with I2C, SCI, and SPI on board, letting one chip talk to ADCs, EEPROM, and a host controller simultaneously. The 40MHz bus speed is ample for PID loops and periodic sensor polling, while 8KB Flash stores calibration tables and communication stacks. Operation from a 2.7V to 5.5V supply simplifies integration with 24V systems through simple regulation. The watchdog timer guarantees recovery from field upsets, and the -40C to +85C range covers unheated enclosures, making it a cost-effective control node for legacy-friendly designs.
Recommended
Small Appliance and Home Device Control
Appliance control boards benefit from the S9S08AW8AE0CLC's low cost, single-supply 2.7V to 5.5V operation, and integrated PWM for motor speed, heater, or fan control. The 22 I/O lines drive keys, LEDs, and relays directly, and the SCI module provides a simple service UART. Because the whole control function fits in 8KB of Flash, the smallest AW flash density minimizes BOM cost at consumer volumes. The power-on reset and low-voltage detection ensure the appliance starts predictably after brownouts, and the 32-LQFP 7x7 mm package suits compact single-sided or two-layer control PCBs.
Recommended
Battery Charger Supervision
Charger supervision uses the S9S08AW8AE0CLC's ADC-driven PWM outputs to manage charge profiles for lead-acid and NiMH packs: the 40MHz S08 core executes taper-detection state machines while the watchdog timer halts charging on firmware faults. The 5.5V supply ceiling allows direct connection to a regulated 5V auxiliary rail, and SCI links the charger to a display or BMS host. With 8KB Flash there is room for multi-chemistry profiles and fault logging in RAM. The -40C to +85C rating covers outdoor charging equipment, and integrated POR ensures safe startup when input power is applied abruptly.
Recommended
Automotive Lighting Control
Interior and exterior LED lighting modules use the S9S08AW8AE0CLC for PWM dimming, switch debouncing, and LIN-style serial control via SCI. The automotive-qualified AW die and -40C to +85C temperature range address under-dash and engine-bay-adjacent environments, while the 2.7V to 5.5V supply tolerates crank and load-dump-induced rail variation when paired with a shunt regulator. Multiple PWM-capable timer channels let one MCU drive several LED channels independently. The 32-LQFP 7x7 mm package with 0.8mm pitch supports automated assembly on cost-sensitive lighting boards, and 8KB Flash covers protocol and dimming curves.
Recommended
Door, Seat, and Comfort Controllers
Comfort controllers - door locks, mirror adjust, seat position - are classic S08 workloads: modest processing, many switch inputs, relay or H-bridge PWM outputs, and an SCI/LIN link to the body controller. The S9S08AW8AE0CLC supplies 22 I/O lines, 40MHz core throughput for debouncing and position tracking, and watchdog supervision for functional safety housekeeping. The automotive qualification and -40C to +85C rating meet vehicle environmental requirements, and the low 8KB flash density keeps per-unit cost minimal across high-volume programs. The drop-in 32-LQFP footprint eases migration to the AW32 or DZ32 when features grow.
Recommended
Recommended Products Summary
Engineering reference data for S9S08AW8AE0CLC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08AW32CFJE | MC9S08AW16CFJE | S9S08DZ32F1MLC | S9S08DV32F1MLC | MC9S08AC8CFJE |
|---|---|---|---|---|---|---|
| Package | 32-LQFP (7x7 mm) | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same | 32-LQFP - same | 32-LQFP - same | 32-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Memory (Flash) | 8 KB | 32 KB | 16 KB | 32 KB | 32 KB | 8 KB |
| Core / Speed | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz |
| Connectivity | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI |
| Automotive Qualification | Yes (automotive rated, -40/+85C) | Yes (AW automotive family) | Yes (AW automotive family) | Yes | Yes | Consumer/Industrial |
Key Differentiators
- Lowest flash density (lowest cost) in the automotive AW family (vs MC9S08AW32CFJE)
- Active lifecycle support (vs S9S08DZ32F1MLC)
- Automotive qualification over industrial-grade AC variant (vs MC9S08AC8CFJE)
Design Notes
The S9S08AW8AE0CLC is End of Life per the NXP product page. Before committing to this part, check the NXP End-of-Life PCN for the last-time-buy deadline and the officially recommended replacement. For ongoing production, plan migration to the same-footprint S9S08DZ32F1 or MC9S08AW32 now - both share the 32-LQFP outline and S08 core, so firmware recompiles with minimal changes. Archive datasheets, CodeWarrior toolchain installers, and BDM probe drivers, since EOL parts lose tool support over time.
The 2.7V to 5.5V supply range permits direct 5V automotive-rail operation, but place a 0.1uF ceramic capacitor within a few millimeters of each VDD/VSS pin pair, plus 4.7uF to 10uF of bulk capacitance near the module connector to absorb load-dump transients handled by upstream clamping. The on-chip LVD and POR modules hold the MCU safely in reset during brownouts - do not disable LVD in firmware for cost-sensitive builds; the default trip thresholds are designed for exactly this supply range.
The 32-LQFP 7x7 mm package with 0.8mm lead pitch reflows reliably with standard SAC305 solder paste on a 2-layer board. Route the SCI/LIN and SPI lines away from relay and motor-drive traces, and dedicate one PWM-capable timer pin per load channel to simplify firmware timing. If EMC testing struggles, reduce PWM slew with series resistors on switching outputs and add a ground pour under the MCU; the S08 core at 40MHz generates minimal emissions, so external sources dominate.
Compliance Information
RoHS compliant per digchip specification listing. Distributor data (Microchip USA, Partstack) describes the part as automotive qualified / AEC-Q100. REACH, halogen-free, and conflict-minerals status not stated in provided data.
