MC9S08AW16MPUE - 8-bit HCS08 MCU, 16KB Flash, 64-LQFP | NXP
MPN: MC9S08AW16MPUE ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.8 | $6.80 |
| 10 | $6.12 | $61.20 |
| 100 | $5.44 | $544.00 |
| 500 | $4.9 | $2,450.00 |
| 1,000 | $4.35 | $4,350.00 |
MC9S08AW16MPUE Overview
An 8-bit microcontroller is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile working memory (RAM), and a fixed set of peripherals (timers, ADC, communication ports, GPIO) into one package. The HCS08 core is NXP's enhanced 8-bit architecture using a Von Neumann bus with a 16-bit stack pointer, hardware multiply/divide, and BCD support, and represents the evolution of the HC08 family with a 3.6 V-to-5.5 V capable Flash-based platform. Within the broader taxonomy the AW16 sits at: 8-bit MCU -> HCS08 family -> AW sub-family -> low-cost general-purpose automotive/industrial tier.
Key features include 16KB Flash with security and in-application programming, 1KB SRAM, a 10-bit ADC with up to 54 available I/O channels (depending on package), 40 MHz bus frequency, multiple timers (TPM, MTIM, RTI), SCI/SPI/I2C communication, and an on-chip 1 kHz low-power oscillator plus full-PLL-capable clock. The device supports a 2.7 V to 5.5 V supply range, hardware watchdog, low-voltage detect (LVD), and a low-power Stop/Wait modes.
The S08 core uses a 32-bit HCS08 instruction set extension that adds BGND, CALL, and RTC instructions for foreground/background debugging while remaining object-code compatible with HC08. Internal Flash and EEPROM-like byte-erasable Flash allow field firmware updates via the integrated SCI bootloader.
Typical applications include automotive body controllers, HVAC panels, instrument clusters, sensor conditioning nodes, industrial PLC I/O modules, low-cost HMI panels, and battery management supervisory MCUs. The wide temperature range (Grade 1 automotive: -40C to +125C) and AEC-Q100-style qualification posture make it a common choice for under-hood and chassis electronics.
When designing with this MCU, leave room in the Flash budget for boot-loader sectors and verify the LVD level setting matches your supply tolerance. The 40 MHz bus requires the internal 1 kHz reference or external crystal; for low-EMI applications route the XTAL traces short and symmetric, and decouple VDD/VSS with one 100 nF per pair plus a bulk 4.7 uF tantalum close to the package.
This page synthesizes distributor pricing, AEC-Q context, package-aware drop-in alternatives from the AW family and cross-brand HCS08 competitors, and practical design notes not consolidated in any single manufacturer datasheet.
Drop-in alternatives for MC9S08AW16MPUE — 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 MC9S08AW16MPUE (same form factor and footprint) — differing in Debug Interface, Package, Core, Core Architecture, Data Bus Width.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08AW32MPUE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08AW48MPUE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08AW60MPUE557
✅ Drop-In✓ In Stock
$6.1 / Unit
View Datasheet →MC9S08AW32MFGE
✅ Drop-In✓ In Stock
$3.15 / Unit
View Datasheet →S9S08AW16AE0CLDR
✅ Drop-In✓ In Stock
$2.6 / Unit
View Datasheet →MC9S08AW16MPUE Maximum Ratings & Electrical Characteristics
| Core | HCS08 (enhanced S08) |
| Data Bus Width | 8 bit |
| Program Memory Size | 16 KB Flash |
| RAM Size | 1 KB |
| Maximum Clock Frequency | 40 MHz |
| ADC Resolution | 10 bit |
| Number of I/Os | 54 I/O |
| Operating Supply Voltage | 2.7 V to 5.5 V |
| Minimum Operating Temperature | -40 C |
| Maximum Operating Temperature | +125 C (Automotive Grade 1) |
| Mounting Style | SMD/SMT |
| Package / Case | 64-LQFP (10x10 mm, gull-wing) |
| Package Code (per JEDEC) | LFQFP |
| Series | MC9S08AW16 (S08AW family) |
| Communication Interfaces | SCI, SPI, I2C |
| Timers | TPM, MTIM, RTI |
| Watchdog | Yes (COP) |
| Low Voltage Detect (LVD) | Yes |
| RoHS Status | Compliant |
| Lead-Free | Yes |
MC9S08AW16MPUE lfqfp Pin Configuration Guide
Pin configuration for MC9S08AW16MPUE (lfqfp 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 MC9S08AW16MPUE.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08AW16MPUE is suitable for 6 applications: Automotive Body Control Module, HVAC Control Panel MCU, Industrial PLC Digital I/O Module, Sensor Conditioning Node, Battery Management Supervisory MCU, Simple HMI / Keypad Scanner.
Automotive Body Control Module
The MC9S08AW16MPUE fits automotive body controllers because its Grade 1 -40 C to +125 C temperature range, 54 I/O count, and 16 KB Flash comfortably handle lighting, mirror, and door-lock logic plus small LIN slaves. Its 1 KB RAM and 40 MHz HCS08 core run simple state machines and the SCI peripherals drive LIN transceivers without needing a CAN node. Placed as the main ECU on a 12 V to 5 V regulated rail, the device uses 100 nF + 4.7 uF decoupling close to VDD/VSS pairs; versus a 32-bit Cortex-M0 the AW16 cuts cost and reduces firmware complexity for nodes that need deterministic 8-bit behavior rather than compute.
Recommended
HVAC Control Panel MCU
The MC9S08AW16MPUE's 54 I/O and 10-bit ADC make it a strong fit for HVAC control panels that drive character LCDs, scan keypads, read NTC thermistors, and switch triac-controlled blowers. Its 16 KB Flash holds UI strings plus a simple PID loop, and the 1 KB SRAM is sufficient for queued key-press buffers. Compared to a discrete 8051 solution, the AW16 integrates timers, ADC, and SCI in one chip, shrinking PCB area by 40 percent. Place a 100 nF bypass per supply pin and route the XTAL short; rated to Grade 1 temperature it survives under-dash mounting without thermal derating.
Recommended
Industrial PLC Digital I/O Module
For industrial 24 V PLC digital I/O modules, the MC9S08AW16MPUE's 2.7 V to 5.5 V supply range combined with the SCI/SPI interfaces enables drop-in compatibility with most 5 V PLC backplanes. The 40 MHz HCS08 core scans up to 32 inputs in microseconds and the 10-bit ADC supports analog input options without a second chip. The hardware COP watchdog and LVD meet IEC 61131-2 reliability requirements. Use opto-isolated inputs and 24 V to 5 V regulation; the AW16 costs roughly half of equivalent Cortex-M0 designs while meeting the same industrial -40 C to +85 C envelope.
Recommended
Sensor Conditioning Node
The MC9S08AW16MPUE suits battery-powered sensor conditioning nodes thanks to its low-power Stop/Wait modes and on-chip 1 kHz reference oscillator. With a 3 V lithium supply the part draws microamp-level standby current while still waking on interrupts from a sensor front-end. The 10-bit ADC digitizes thermocouple or strain-gauge signals, the SCI outputs Modbus-RTU frames, and 16 KB Flash holds calibration tables. Compared to a discrete op-amp + ADC design, integrating an MCU simplifies the BOM and adds diagnostics via watchdog and brown-out reset.
Recommended
Battery Management Supervisory MCU
As a battery-pack supervisory MCU, the MC9S08AW16MPUE monitors cell voltage via the 10-bit ADC, drives balancing FETs via GPIO, and reports state-of-charge over SCI or SPI to a higher-level BMS host. Its 16 KB Flash holds lookup tables for chemistry-specific SoC curves and 1 KB SRAM buffers instantaneous samples. The Grade 1 temperature rating allows mounting on the pack itself, and the wide 2.7 V to 5.5 V supply range lets the part run from a regulated 3.3 V rail while cells span 2 V to 4.2 V each. Add isolation if the pack voltage exceeds 60 V.
Recommended
Simple HMI / Keypad Scanner
The MC9S08AW16MPUE's 54 I/O pins support matrix-scanned keypads up to 8x8 plus an LED or character-LCD display with no external driver. The 16 KB Flash stores menu trees and the 1 KB SRAM buffers typed entries. The 40 MHz bus keeps scan latency below 10 ms, and the hardware TPM generates precise LED PWM. Compared to a 16-pin small MCU, the AW16 eliminates external shift-register expanders and the package's 0.5 mm pitch is hand-solderable for prototype builds. Use 100 nF decoupling per supply and a 32.768 kHz crystal for RTC if needed.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08AW16MPUE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08AW32MPUE | MC9S08AW48MPUE | MC9S08AW60MPUE | MC9S08AW32MFGE | S9S08AW16AE0CLDR |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS08, 8-bit | HCS08, 8-bit | HCS08, 8-bit | HCS08, 8-bit | HCS08, 8-bit | S9S08 (scaled), 8-bit |
| Flash Size | 16 KB | 32 KB | 48 KB | 60 KB | 32 KB | 16 KB |
| RAM Size | 1 KB | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB |
| Max Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40 C to +125 C (Automotive Grade 1) | -40 C to +125 C (Automotive Grade 1) | -40 C to +125 C (Automotive Grade 1) | -40 C to +125 C (Automotive Grade 1) | -40 C to +85 C (Industrial) | -40 C to +125 C (Automotive) |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Number of I/Os | 54 | 54 | 54 | 54 | 54 | 54 |
Key Differentiators
- Lowest-cost AW16 family member with full Grade 1 automotive temperature (vs MC9S08AW32MPUE)
- Direct upgrade path to 32, 48, or 60 KB Flash on identical footprint (vs MC9S08AW60MPUE)
- Integrated 10-bit ADC and SCI/SPI/I2C peripherals versus competitors' external chains (vs Discrete 8051 + external ADC)
Design Notes
Estimated: at 5 V VDD with the CPU active at full 40 MHz, the MC9S08AW16MPUE draws roughly 20 mA. Use a 100 nF X7R ceramic bypass capacitor on every VDD/VSS pair placed within 2 mm of the pin, plus a single 4.7 uF X5R bulk capacitor on the package side closest to the regulator. For battery-powered nodes, leverage Stop mode which reduces current to a few microamp with RAM retained and wake on IRQ.
Route the XTAL traces symmetrically and keep them under 5 mm total length to avoid parasitic capacitance. Place the 32.768 kHz or high-frequency crystal on the same layer as the MCU, surrounded by a ground guard ring tied to VSSA. Avoid routing digital signals under the crystal; the exposed thermal pad on the LQFP-64 (if used) must be soldered to a continuous ground plane for thermal and electrical stability.
Do not assume the AW16 always runs at 40 MHz without wait states when reading Flash at lower VDD; verify the bus-divider and MCDIV settings in FCDIV register against the chosen VDD. A common pitfall is leaving the internal 1 kHz reference oscillator disabled while expecting the PLL to lock; enable ICG and confirm FLL stability before relying on the bus clock. Also note that the LQFP-64 pin 1 marker is the bevel/dot indicator; misaligning pin 1 will invert your GPIO mapping by 180 degrees.
Keep ADC reference and analog supply pins (VREF, VDDA) routed as a star from a dedicated 10 uF + 100 nF decoupling pair, separated from the digital VDD trace. The 10-bit ADC achieves full ENOB only with low source impedance; place an op-amp buffer on each high-impedance sensor. For SPI runs above 10 MHz, add 33 ohm series resistors near the driver to dampen ringing; verify against signal-integrity simulation if the bus exceeds 25 MHz.
Compliance Information
RoHS and lead-free per NXP product page. The MPUE suffix indicates automotive Grade 1 temperature range (-40C to +125C); confirm AEC-Q100 PPAP documentation with NXP for production automotive designs.
