S9S08SG16E1VTJR - 8-bit S08 MCU 16KB Flash 40MHz | NXP
MPN: S9S08SG16E1VTJR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.67 | $16.70 |
| 100 | $1.48 | $148.00 |
| 500 | $1.39 | $695.00 |
| 1,000 | $1.3 | $1,300.00 |
S9S08SG16E1VTJR Overview
An 8-bit microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripherals such as timers, ADCs, and communication interfaces. Within the embedded systems hierarchy, MCUs sit at the device level of the broader semiconductor family, serving as the computational heart of cost-sensitive electronic control units. The NXP S08 family is a CISC-architecture 8-bit platform originally developed by Freescale Semiconductor and now maintained by NXP.
Key features of the S9S08SG16E1VTJR include 16 KB of on-chip FLASH memory for firmware storage, 16 general-purpose I/O lines, an integrated 10-bit ADC for analog sensing, and an I2C interface for peripheral communication. According to NXP product documentation, the SG family integrates analog functions specifically targeted at cost-sensitive automotive applications such as small motor control and sensor interfacing.
The device operates from 3.3V or 5V supply rails, giving designers flexibility across mixed-voltage automotive and industrial systems. Its 40 MHz internal bus capability provides adequate processing headroom for closed-loop control algorithms, LIN-style communication handling, and sensor filtering without an external crystal in many designs. The AEC-Q100 qualification and -40C to +105C operating range make it suitable for under-hood-adjacent and body-electronics modules.
Typical applications include automotive body control modules, DC fan and pump motor control, window lift and seat adjust drivers, and generic sensor nodes requiring a 10-bit ADC and robust flash endurance.
A key design consideration is that the SG family is pin-compatible with the NXP S08EL and S08SL families, allowing memory-size or peripheral upgrades without PCB redesign - plan your land pattern with this upgrade path in mind.
This page synthesizes verified distributor pricing, drop-in alternatives within the S08 family, and practical design notes not found in a single manufacturer datasheet.
Drop-in alternatives for S9S08SG16E1VTJR — 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 S9S08SG16E1VTJR (same form factor and footprint) — differing in Core Processor, Package, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S9S08SG32E1VTJR
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SG32E1CTJR
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SG8E2WTGR
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SL8F1MTJR
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08SL16CTJ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.83 / Unit
View Datasheet →S9S08SG16E1VTJR Maximum Ratings & Electrical Characteristics
| Core Processor | S08 (8-bit CISC) |
| Core Size | 8-bit |
| Maximum Clock Frequency | 40 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 16 KB (16K x 8) |
| RAM Size | 512 B |
| Supply Voltage | 3.3 V / 5 V |
| Number of I/O | 16 |
| ADC Resolution | 10-bit |
| Communication Interfaces | I2C |
| Operating Temperature | -40C to +105C (TA) |
| Package | 20-TSSOP (0.173", 4.40 mm width) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 automotive qualified |
| Packaging Method | Tape & Reel (TR) |
| Series | S9S08SG (S08) |
| RoHS Status | Compliant |
S9S08SG16E1VTJR 20-tssop (0.173", 4.40 mm width) Pin Configuration Guide
Pin configuration for S9S08SG16E1VTJR (20-tssop (0.173", 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 S9S08SG16E1VTJR.
Refer to the datasheet for full pin configuration.
Typical Applications
S9S08SG16E1VTJR is suitable for 6 applications: Automotive DC Fan and Blower Motor Control, Body Control and Actuator Modules, Analog Sensor Nodes and Conditioning, Small Appliance and Industrial Motor Drivers, Legacy HC08/S08 System Continuation, LIN-Adjacent Node and I2C Peripheral Controller.
Automotive DC Fan and Blower Motor Control
The S9S08SG16E1VTJR fits automotive fan and blower control modules because its 40 MHz S08 core generates multi-channel PWM while the integrated 10-bit ADC closes the loop via tachometer or current-sense feedback, all within a single 20-TSSOP package. NXP positions the SG family specifically for cost-sensitive automotive applications with integrated analog, and the AEC-Q100 qualification with -40C to +105C range covers the hot ambient zones where cooling modules live. Operating from a 5 V rail, the MCU can directly drive low-side FET gate drivers without level shifting. A quantified benefit: one 16 KB flash device replaces a discrete PWM generator plus supervisor, cutting BOM cost while the 105C rating avoids derating that a +85C consumer part would require.
Recommended
Body Control and Actuator Modules
In automotive body electronics - window lifters, seat adjusters, mirror actuators, lamp controls - the S9S08SG16E1VTJR provides 16 I/O lines and a 40 MHz core sufficient for switch debouncing, relay/PWM actuation, and diagnostic messaging over I2C-attached companions. Its AEC-Q100 qualification and -40C to +105C rating satisfy the environmental requirements of interior and near-engine bay modules, and the dual 3.3 V/5 V supply support eases integration with both legacy 5 V sensor rails and modern 3.3 V logic. The 16 KB flash accommodates firmware including fault-latch and limp-home logic. The NXP-documented pin compatibility with the S08EL and S08SL families lets platform teams scale the same PCB across memory and peripheral variants, cutting qualification cost across model lines.
Recommended
Analog Sensor Nodes and Conditioning
The S9S08SG16E1VTJR serves resistive and voltage-output sensor nodes - temperature, pressure, position - because its integrated 10-bit ADC digitizes sensor outputs directly and the 40 MHz S08 core applies offset/gain correction and filtering in firmware. With 512 B of RAM the device stores calibration tables and filtering state, while 16 KB flash holds linearization curves. The 5 V operation simplifies interfacing with ratiometric sensors whose output spans the supply rail, and the automotive 105C rating suits under-hood-adjacent sensor pods. Data can be exported via the I2C interface to a gateway ECU. A quantified trade-off: at 10-bit resolution, one LSB equals about 4.9 mV on a 5 V rail - adequate for NTC thermistors and potentiometric sensors but not for precision bridges that need external amplification.
Recommended
Small Appliance and Industrial Motor Drivers
Beyond automotive, the SG16 targets brushless and brushed small-motor control in appliances, pumps, and industrial actuators. The 40 MHz bus speed supports center-aligned PWM at audible-suppression frequencies above 20 kHz while the 10-bit ADC reads back-shunt current for stall detection and torque limiting. The -40C to +105C industrial-grade temperature range and 3.3 V/5 V flexibility let one design span both consumer and industrial variants. Its small 4.40 mm-wide 20-TSSOP footprint fits compact driver boards, and the I2C port links the node to a supervisory controller or config EEPROM. A practical benefit: firmware-controlled fault handling (overcurrent latch, retry sequences) implemented in the 16 KB flash removes external protection logic, reducing board area in cost-driven appliance designs.
Recommended
Legacy HC08/S08 System Continuation
Many fielded designs built on Freescale HC08 and early S08 devices need a maintenance MCU: the S9S08SG16E1VTJR, as an active AEC-Q100 S08-family part, is a natural continuation device. Its S08 CISC core executes the same instruction set architecture engineers already know, and NXP documents pin compatibility of the SG family with S08EL and S08SL, simplifying PCB-level substitution within the platform. The 16 KB flash exceeds the program space of older 8 KB HC08 parts while keeping the same 5 V I/O world, so firmware ports are typically code-size upgrades rather than architecture rewrites. Development continuity with CodeWarrior tooling preserves existing test fixtures. The main trade-off is flash endurance and lifecycle: confirm remaining NXP lifetime projections before committing multi-year service spares.
Recommended
LIN-Adjacent Node and I2C Peripheral Controller
In distributed automotive and industrial systems, the S9S08SG16E1VTJR works as a satellite node that aggregates switches, lamps, and local sensors and reports upstream via I2C to a network master implementing LIN or CAN. Its 16 I/O lines handle direct key and LED interfacing, the 10-bit ADC samples analog status inputs, and the 40 MHz core provides fast local reaction (deglitching, timeout handling) without burdening the network master. Dual-supply support allows the node to sit on either a 5 V or 3.3 V domain. The AEC-Q100 qualification makes the arrangement valid for automotive sub-modules where the LIN transceiver itself sits on a companion device. Using I2C for the uplink keeps the MCU cost minimal, since no on-chip LIN/CAN block needs to be paid for in this architecture.
Recommended
Recommended Products Summary
Engineering reference data for S9S08SG16E1VTJR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S9S08SG32E1VTJR | S9S08SG32E1CTJR | S9S08SG8E2WTGR | S9S08SL8F1MTJR | MC9S08SL16CTJ |
|---|---|---|---|---|---|---|
| Package | 20-TSSOP | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 16 KB | 32 KB | 32 KB | 8 KB | 8 KB | 16 KB |
| Core / Speed | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz | S08, 40 MHz |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Key Peripheral Difference | 10-bit ADC, I2C, 16 I/O | Same + 2x flash | Same + 2x flash | Same, 8 KB flash limit | SL family: LCD driver | SL family: LCD driver |
Key Differentiators
- Automotive temperature grade at entry-level cost (vs S9S08SG32E1CTJR)
- Cost-optimized 16 KB flash point (vs S9S08SG32E1VTJR)
- Double the flash of the SG8 cost-down (vs S9S08SG8E2WTGR)
- Integrated analog focus vs LCD-focused SL family (vs MC9S08SL16CTJ)
Design Notes
Do not confuse temperature grades within the SG family part-numbering: VTJ suffix parts (this device) are -40C to +105C automotive grades, while CTJ suffix parts are typically -40C to +85C commercial grades in the identical 20-TSSOP footprint. Ordering a CTJ as a substitute for a VTJ in an under-hood or engine-bay-adjacent module risks thermal margin violations that may not appear at bench temperature. Also note that this is a S9S08 (automotive) part; do not substitute non-automotive S08 parts in AEC-Q100-required designs without customer approval.
The 20-TSSOP (4.40 mm width) footprint is shared across the entire S08SG family and, per NXP documentation, with the S08EL and S08SL families. Lay out the land pattern so that flash-size upgrades (SG8/SG16/SG32) or family swaps (SG to SL for LCD drive) remain solderable without respin. Decouple VDD with a 0.1 uF ceramic placed within 2 mm of the pin and add a bulk 4.7-10 uF near the supply entry; the S08 internal clock module is sensitive to supply ripple during flash programming, so clean power also protects in-system flash reprogramming reliability.
Estimated: the S08 core at 40 MHz draws on the order of a few mA typical (exact figure - confirm in the NXP S08SG datasheet current-consumption table), so total board power is usually dominated by the load being driven (FET gates, LEDs) rather than the MCU. For 5 V operation, verify the ADC reference configuration: ratiometric measurements (NTC dividers, potentiometers) should reference AVDD so supply variation cancels; absolute measurements need a stable reference or software calibration. Allow margin on the 105C rating for self-heating through I/O pin currents.
Compliance Information
AEC-Q100 automotive qualification and -40C to +105C grade confirmed by DigiKey/Mouser/datasheets.com listings; RoHS compliance indicated by distributor listings (RoHS-compliant tape and reel packaging). REACH, lead-free, halogen-free and conflict-minerals statuses not stated in provided data.
