NXP Semiconductors S9S08SG16E1VTL

Overview

S9S08SG16E1VTL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB on-chip Flash, 1 KB RAM, and integrated peripherals including 10-bit ADC, dual TPM timers, SCI, SPI, I²C, ACMP, and RTC. It operates at up to 40 MHz bus frequency, supports -40°C to +125°C temperature range, and targets automotive body electronics and industrial control applications requiring robust debug and low-power operation.

For engineers reviewing the S9S08SG16E1VTL datasheet, S9S08SG16E1VTL pinout, S9S08SG16E1VTL application, or S9S08SG16E1VTL equivalent, key selection criteria include Flash size (16 KB), TSSOP-16 package compatibility, stop3-mode peripheral retention (ADC, ACMP, RTC), ICS clock trimming accuracy (±1.5% over -40°C to +125°C), and single-wire background debug interface support.

Technical Context

The S9S08SG16E1VTL implements the HCS08 CPU core with HC08 instruction set extension, BGND instruction, and support for 32 interrupt/reset sources. Its Internal Clock Source (ICS) uses a frequency-locked loop (FLL) with internal reference trimming enabling 2–20 MHz bus frequencies without external crystal.

Memory architecture includes 16 KB Flash (with block protection and security circuitry), 1 KB RAM, and dedicated registers for FLASH control (FCDIV, FOPT, FPROT, FSTAT). Peripherals operate in Stop3 mode: ADC (16-channel, 10-bit, 2.5 µs conversion), ACMP (comparator output routable to TPM), and RTC (free-running 1 kHz oscillator).

Key Specifications

Pinout & Package

Package: 16-pin Thin Shrink Small Outline Package (TSSOP), 4.4 mm × 5.0 mm body, 0.65 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08SG16E1VTL, the S9S08SG32E1VTL provides double Flash capacity in identical packaging and timing, while the MC9RS08LA8 sacrifices core compatibility, PWM capability, and analog features to reduce cost - making it unsuitable for direct replacement in existing S9S08SG16E1VTL designs.

Availability

S9S08SG16E1VTL is available at Aetrix Electronics and suitable for automotive body electronics, industrial temperature controllers, and smart power outlets requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant operation.

Supply support for S9S08SG16E1VTL 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's microcontroller heritage.

The S9S08SG16E1VTL belongs to the HCS08 family designed for cost-sensitive, high-reliability embedded control in harsh environments - emphasizing low-power operation, on-chip debug, and robust system-level protection features.

FAQ

What is the maximum operating temperature range supported by the S9S08SG16E1VTL?

The S9S08SG16E1VTL is rated for operation from –40°C to +125°C. This extended temperature range is validated per AEC-Q100 Grade 1 specifications and applies across all electrical characteristics, including Flash programming, ADC performance, and ICS clock accuracy. The device maintains ±1.5% bus frequency deviation within this range due to factory-trimmed internal reference calibration. S9S08SG16E1VTL does not support the +150°C HT grade variant offered in some SG32 derivatives.

Does the S9S08SG16E1VTL support in-circuit debugging, and what interface is used?

Yes, the S9S08SG16E1VTL supports in-circuit debugging via a single-wire background debug (BDM) interface using the BKGD/MS pin. It includes one hardware breakpoint and an on-chip debug module with two comparators and nine trigger modes. The BDM interface enables full memory access, register inspection, and real-time execution control without requiring additional debug headers or JTAG pins - simplifying board layout and reducing test point count for S9S08SG16E1VTL-based designs.

Can the S9S08SG16E1VTL execute code from Flash while in Stop3 mode?

No, the S9S08SG16E1VTL cannot execute code from Flash in Stop3 mode - the CPU and Flash controller are halted. However, selected peripherals remain active: ADC, ACMP, RTC, COP watchdog, and LVW interrupt logic continue functioning. Wake-up events (e.g., ADC conversion complete, RTC overflow, ACMP output change) automatically exit Stop3 and resume execution from the wake-up vector. This design enables ultra-low-power monitoring in S9S08SG16E1VTL applications without sacrificing responsiveness.

What are the Flash memory protection mechanisms available on the S9S08SG16E1VTL?

The S9S08SG16E1VTL implements Flash protection through the FPROT register (volatile) and NVPROT register (non-volatile). These allow selective locking of Flash blocks to prevent accidental or unauthorized program/erase operations. Protection is enforced at the hardware level - attempts to write protected regions trigger a security violation reset. Additionally, security circuitry prevents read-out of Flash and RAM contents via BDM, ensuring firmware intellectual property remains protected in deployed S9S08SG16E1VTL units.

Is the S9S08SG16E1VTL pin-compatible with other members of the MC9S08SGxx family?

Yes, the S9S08SG16E1VTL in the 16-pin TSSOP package shares identical pinout with the S9S08SG32E1VTL and S9S08SG8E1VTL variants. All three devices map VDD, VSS, RESET, BKGD/MS, and peripheral signals (SCI, SPI, I²C, TPM, ADC inputs) to the same physical pins. This allows drop-in Flash capacity upgrades - replacing S9S08SG16E1VTL with S9S08SG32E1VTL requires no PCB changes, only firmware recompilation and Flash programming update.