MC9S08SH16MTJ - 8-bit MCU 16KB Flash 40MHz | NXP Semiconductors
MPN: MC9S08SH16MTJ ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.54 | $4.54 |
| 10 | $4.09 | $40.90 |
| 100 | $3.63 | $363.00 |
| 500 | $3.27 | $1,635.00 |
| 1,000 | $2.95 | $2,950.00 |
MC9S08SH16MTJ Overview
An 8-bit microcontroller is a single-chip computer integrating a processor core, program memory, data memory, and peripherals on one die. Within the power-management and control hierarchy of embedded systems, MCUs such as the S08SH sit below 16/32-bit application processors and above discrete logic, handling sensing, timing, and actuation tasks in end products. The S08SH family is NXP's (formerly Freescale Semiconductor) entry-level series for 5V-range applications.
Key features of the MC9S08SH16MTJ include an HCS08 CISC core executing the HC08 instruction set with an added BGND instruction, a 16-channel 10-bit ADC with 2.x mode conversion support, and support for up to 32 interrupt/reset sources. Single-wire background debug interfacing and an on-chip ICE debug module with two comparators and nine trigger modes simplify development without additional debug silicon.
Technically, the device combines the S08 core with 16 KB (16K x 8) of on-chip flash program memory. The debug module includes an eight-deep FIFO for storing change-of-flow address and event-only data, while breakpoint capability permits single-breakpoint in-circuit debugging plus two additional breakpoints in the on-chip debug module. The automotive temperature grade supports operation from -40C to +125C.
Typical applications include automotive body and comfort electronics, 5V industrial sensors and actuators, appliance control boards, and low-cost battery-monitoring nodes, where a wide 2.7V-5.5V supply range removes the need for a dedicated 3.3V regulator.
Design consideration: this part is End-of-Life per the NXP product page, so new designs should favor the MC9S08SH32 or S9S08SG16 family members, and existing designs should verify last-time-buy schedules with distributors.
This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not found in the manufacturer datasheet, with pricing freshness as of 2026-10-18.
Drop-in alternatives for MC9S08SH16MTJ — 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 MC9S08SH16MTJ (same form factor and footprint) — differing in Package, Core Processor, Lifecycle Status, RAM Size, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S9S08SG16E1MTJ
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08SH32VTJ
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08SH16CVTJ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S08SL16CTJ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.83 / Unit
View Datasheet →MC9S08PT16VTJ
✅ Drop-In✓ In Stock
$1.89 / Unit
View Datasheet →MC9S08SH16MTJ Maximum Ratings & Electrical Characteristics
| Core Processor | S08 (HCS08) 8-bit CISC |
| Core Size | 8-bit |
| Maximum Clock Frequency | 40 MHz |
| Flash Memory | 16 KB (16K x 8) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| ADC Resolution | 10-bit |
| ADC Channels | 16-channel |
| Interrupt/Reset Sources | up to 32 |
| Instruction Set | HC08 with added BGND instruction |
| Debug Interface | Single-wire background debug interface |
| On-chip Debug Module | ICE, 2 comparators, 9 trigger modes, 8-deep FIFO |
| Operating Temperature | -40C to +125C (automotive grade) |
| Package | 20-TSSOP (0.173 inch, 4.40 mm width) |
| Mounting Type | Surface Mount |
| Terminal Form | Gull Wing |
| Packaging | Tube |
MC9S08SH16MTJ 20-tssop (0.173 inch, 4.40 mm width) Pin Configuration Guide
Pin configuration for MC9S08SH16MTJ (20-tssop (0.173 inch, 4.40 mm width) 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 MC9S08SH16MTJ.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08SH16MTJ is suitable for 6 applications: Automotive Body Electronics, Industrial Sensor Nodes, Appliance Control Boards, Battery-Powered Monitoring Devices, Motor Control Subsystems, Test and Measurement Fixtures.
Automotive Body Electronics
The MC9S08SH16MTJ was designed by NXP specifically for 5-volt automotive applications, and its -40C to +125C automotive temperature grade makes it a direct fit for door modules, seat controllers, mirror actuators, and lighting control nodes. The 16-channel 10-bit ADC can read multiple switch matrices, resistive sensor arrays, and NTC temperature inputs on a single die, while the wide 2.7V to 5.5V supply range tolerates automotive load-dump conditions with simple clamp protection. The 40 MHz S08 core provides adequate headroom for LIN-style polling loops, and the single-wire background debug interface allows end-of-line reprogramming on the assembled module. Because the part is now EOL, new automotive designs should qualify the pin-compatible S9S08SG16E1MTJ successor family instead, reusing the existing TSSOP-20 footprint and firmware structure.
Recommended
Industrial Sensor Nodes
In 5V industrial environments, the MC9S08SH16MTJ integrates signal acquisition and control without a separate ADC: its 16-channel, 10-bit converter digitizes thermistors, potentiometers, 4-20 mA receiver outputs, and pressure bridges directly. The 5V-referenced ADC improves noise margin in electrically noisy factory settings compared with 3.3V parts, and the 2.7V brownout tolerance allows the MCU to ride through supply dips. The S08 core at 40 MHz executes digital filtering and threshold decision logic with margin to spare, while the on-chip debug module (two comparators, nine trigger modes, eight-deep FIFO) accelerates commissioning of timing-sensitive capture routines. Its 20-pin TSSOP saves board area on dense I/O cards. Note the EOL status: for new industrial designs, migrate to the S9S08SG16 family to secure long-term supply.
Recommended
Appliance Control Boards
White-goods and small-appliance controls benefit from the MC9S08SH16MTJ's cost-optimized integration: one 20-pin TSSOP device replaces discrete logic, an ADC, and a supervisor by providing the 40 MHz S08 core, 16 KB flash, up to 32 interrupt/reset sources, and a 16-channel 10-bit ADC for encoder, thermostat, and pot-position sensing. The 5V supply directly powers the MCU from legacy appliance 5V rails or a simple linear regulator, and the -40C to +125C grade tolerates harsh internal environments near motors or heating elements. The single-wire background debug port enables in-board firmware updates during production. Given the End-of-Life listing on NXP's product page, appliance makers should plan last-time-buy coverage or qualify the S9S08SG16E1MTJ drop-in successor, which preserves the TSSOP-20 footprint.
Recommended
Battery-Powered Monitoring Devices
The 2.7V to 5.5V supply range of the MC9S08SH16MTJ lets it run directly from a three-cell alkaline stack (4.5V) or a single lithium cell down to end-of-discharge voltage, eliminating a dedicated regulator and its quiescent overhead. The 10-bit, 16-channel ADC monitors pack voltage, current-shunt amplifiers, and temperature sensors, while flash-based program storage allows field firmware updates without external memory. The 40 MHz S08 core completes burst-measurement workloads quickly so the device can spend maximal time in low-power stop modes between readings. Its compact 20-pin TSSOP gull-wing package fits small portable enclosures. Designers should note the EOL status and verify long-term availability before committing new battery-product designs; the S9S08SG16E1MTJ is the pin-compatible continuation path.
Recommended
Motor Control Subsystems
Small DC and stepper motor applications use the MC9S08SH16MTJ as the supervisory controller: the 40 MHz S08 core generates PWM timing, the 10-bit ADC reads back current via shunt amplifiers and position via potentiometers or Hall-conditioned inputs across its 16 channels, and the 5V I/O drives gate-driver or H-bridge logic inputs directly. The -40C to +125C automotive temperature grade suits pump, fan, and actuator environments where ambient heat is unavoidable. Debug during bring-up is simplified by the on-chip ICE module with nine trigger modes and an eight-deep change-of-flow FIFO, which helps isolate timing faults in commutation loops. Because the part is End-of-Life per NXP, motor-control designers should baseline new schematics on the S9S08SG16E1MTJ to preserve footprint compatibility.
Recommended
Test and Measurement Fixtures
Bench fixtures and production test stations employ the MC9S08SH16MTJ as a low-cost sequencer and data-acquisition controller. The 16-channel 10-bit ADC reads DUT outputs and sensor feedback, the 40 MHz core executes pass/fail logic and relay timing, and flash storage retains test profiles across power cycles. The single-wire background debug interface lets engineers re-flash firmware between test revisions without removing the MCU from the fixture, and the on-chip debug module's nine trigger modes with eight-deep FIFO aid in tracing intermittent handler-communication faults. The 20-pin TSSOP package keeps fixture PCBs compact. For long-lived factory equipment, plan a firmware-compatible migration to the S9S08SG16E1MTJ, since the parent SH16 is listed End-of-Life on NXP's product information page.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08SH16MTJ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S9S08SG16E1MTJ | MC9S08SH32VTJ | MC9S08SL16CTJ | MC9S08PT16VTJ |
|---|---|---|---|---|---|
| Package | 20-TSSOP | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 16 KB | 16 KB | 32 KB | 16 KB | 16 KB |
| ADC | 10-bit, 16-channel | 10-bit | 10-bit, 16-channel | 10-bit | 10-bit |
Key Differentiators
- Successor-family availability (vs S9S08SG16E1MTJ)
- Double the program memory at the same footprint (vs MC9S08SH32VTJ)
- Broader peripheral differentiation (vs MC9S08PT16VTJ)
Design Notes
The MC9S08SH16MTJ is End-of-Life per NXP's product page. Before committing any new PCB spin, verify remaining distributor stock (Heisener listed 2,448 pieces) and your product's expected field lifetime. For new designs, baseline the S9S08SG16E1MTJ, which the Utmel parametric comparison shows matches 40 MHz, 16 KB flash, and the 20-TSSOP package. When swapping, diff the S08SH and S08SG reference manuals for peripheral register map changes before reusing firmware binaries.
The 2.7V to 5.5V supply range simplifies power-tree design: on 5V boards, a single 100 nF ceramic decoupling capacitor per the family datasheet typical application plus one bulk capacitor (4.7 uF to 10 uF) is generally sufficient. In automotive environments, add series impedance and a TVS clamp ahead of the MCU pin to survive load-dump transients. Do not rely on the wide supply range alone for transient immunity - the absolute maximum rating has less margin than the operating range.
The 20-pin TSSOP with 0.65 mm gull-wing leads requires a standard TSSOP-20 land pattern; verify your footprint against the MC9S08SH32/MC9S08SH16 family datasheet mechanical drawing rather than copying footprints from other S08 packages, since VTJ/TJ suffix parts share the TSSOP-20 (4.40 mm width) body. Keep the ADC input traces short and away from switching nets to preserve 10-bit accuracy across all 16 multiplexed channels, and place the debug header for the single-wire background debug interface accessible in-circuit.
Compliance Information
Automotive temperature grade (-40C to +125C) per Vyrian and JaronSemi data. RoHS compliance indicated on distributor listings (digchip shows RoHS details field); formal AEC-Q100 qualification level not stated in provided data. Verify REACH and halogen-free status via the NXP product page.
