My Inquiry
My Account
NXP Semiconductors MC9S08SE4CRL
- Part No.:
- MC9S08SE4CRL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-DIP (0.600", 15.24mm)
- Datasheet:
-
MC9S08SE4CRL.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:10,940
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC9S08SE4CRL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 bytes RAM, 10-bit ADC, SCI interface, dual TPM timers, RTC, and KBI-designed for low-power embedded control in automotive body electronics and industrial sensor nodes.
For engineers reviewing the MC9S08SE4CRL datasheet, MC9S08SE4CRL pinout, MC9S08SE4CRL application, or MC9S08SE4CRL equivalent, this page delivers verified specifications, package mapping, functional alternatives, and real-world use context for rapid selection and integration into cost-sensitive, space-constrained designs.
Technical Context
The MC9S08SE4CRL implements the HCS08 CPU core running at up to 20 MHz with a 10 MHz bus frequency, supporting HC08 instruction set plus BGND. It integrates an internal clock source (ICS) with FLL-based frequency locking and precision trimming for ±0.2% resolution over voltage and temperature.
Its peripheral set includes a full-duplex SCI with LIN master/slave extended break support, a 10-channel 10-bit ADC with 2.5 μs conversion time and internal temperature sensor (1.7 mV/°C), two timer/pulse-width modulator modules (TPM1: 2-channel, TPM2: 1-channel), and an 8-pin keyboard interrupt module-all operating in Stop3 mode for ultra-low-power wake-up capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU, 20 MHz max CPU clock, 10 MHz bus frequency - enables deterministic real-time control with minimal code footprint |
| Memory | 4 KB on-chip flash (block-protected, secure), 256 bytes RAM - sufficient for small firmware images with runtime data buffering |
| ADC | 10-channel, 10-bit resolution, 2.5 μs conversion time, internal bandgap reference - supports fast analog sensing without external reference |
| SCI | Full-duplex NRZ UART with LIN master break generation and slave break detection - enables direct integration into LIN bus networks |
| Power Modes | Wait + Stop2 + Stop3 modes; Stop3 current as low as 1.44 μA (–40 to 85°C) - extends battery life in intermittent-sensing applications |
| Clock Sources | External crystal/resonator (31.25 kHz–16 MHz) + internal ICS with FLL - eliminates need for external oscillator in many designs |
| Operating Voltage | 2.7 V to 5.5 V - compatible with both 3.3 V and 5 V system rails without level-shifting |
Pinout & Package
MC9S08SE4CRL is available in 16-pin TSSOP (Case 948F-01), with all pins fully defined per Freescale MC9S08SE8 Series Data Sheet Rev. 4. The 16-pin variant omits PTC[7:0], PTA[7:6], PTB[7:5], and IRQ/TCLK/RESET functions present in larger packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTB3/KBIP7/ADP9 | Port B bit 3 / Keyboard interrupt input 7 / ADC channel 9 | Multi-function I/O supporting wake-up from Stop3 via keypress or analog threshold crossing |
| PTB2/KBIP6/ADP8 | Port B bit 2 / Keyboard interrupt input 6 / ADC channel 8 | Shared interrupt-capable input for keypad scanning or analog monitoring |
| PTA3/KBIP3/ADP3 | Port A bit 3 / Keyboard interrupt input 3 / ADC channel 3 | Enables compact 3×3 keypad interface or multi-point sensor sampling |
| PTA2/KBIP2/ADP2 | Port A bit 2 / Keyboard interrupt input 2 / ADC channel 2 | Supports simultaneous key detection and analog signal acquisition |
| PTB1/KBIP5/TxD/ADP7 | Port B bit 1 / Keyboard interrupt input 5 / SCI transmit / ADC channel 7 | Combines serial communication output with interrupt-driven input and analog sensing |
| PTB0/KBIP4/RxD/ADP6 | Port B bit 0 / Keyboard interrupt input 4 / SCI receive / ADC channel 6 | Enables full-duplex SCI with hardware flow control and wake-on-Rx capability |
| VDD | Positive supply rail | Accepts 2.7–5.5 V; powers digital logic, analog peripherals, and internal voltage regulator |
| VSS | Ground reference | Digital ground plane connection; must be low-impedance for ADC accuracy and noise immunity |
| PTB6/XTAL | Crystal oscillator input | Connects to one terminal of external 32.768 kHz or 1–16 MHz crystal/resonator |
| PTB7/EXTAL | Crystal oscillator output / external clock input | Drives crystal or accepts square-wave clock source up to 20 MHz |
| PTA4/BKGD/MS | Background debug / master select | Single-wire debug interface for programming and real-time in-circuit debugging |
| PTA5/IRQ/TCLK/RESET | Interrupt request / test clock / reset input | Active-low reset with internal pullup; also serves as external interrupt trigger or test clock input |
| VDDA/VREFH | Analog power / ADC reference high | Must be decoupled near chip; doubles as ADC reference unless external VREFH applied |
| VSSA/VREFL | Analog ground / ADC reference low | Separate analog ground pin improves ADC SNR; doubles as ADC reference low |
| PTA0/KBIP0/TPM1CH0/ADP0 | Port A bit 0 / Keyboard interrupt input 0 / TPM1 channel 0 / ADC channel 0 | Primary PWM output or analog input with interrupt-on-threshold capability |
| PTA1/KBIP1/TPM1CH1/ADP1 | Port A bit 1 / Keyboard interrupt input 1 / TPM1 channel 1 / ADC channel 1 | Second PWM channel or analog input, enabling dual-output motor control or differential sensing |
Key Features
| Feature | Design Value |
|---|---|
| Single-wire background debug (BDC) | Enables full firmware download, breakpoint setting, and register inspection using only BKGD/MS pin - reduces debug footprint and BOM cost |
| Stop3 mode with RTC and ADC wakeup | Consumes ≤1.44 μA while maintaining real-time counter and enabling analog-triggered wake-up - ideal for battery-powered sensor polling |
| Internal clock source (ICS) with FLL | Provides stable 1–10 MHz bus clock without external crystal; factory-trimmed to ±0.2% resolution - simplifies layout and improves yield |
| SCI with LIN-compliant break generation/detection | Generates >13-bit dominant break field and detects breaks ≥11 bits - meets LIN 2.0/2.1 physical layer requirements without external transceiver |
| Programmable port drive strength & slew rate | Software-selectable high/low drive and fast/slow slew on all I/O - optimizes EMI, noise immunity, and signal integrity per trace length/load |
Applications
| Automotive Door Module Control | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Centralized control of window lift, mirror adjustment, and interior lighting in vehicle door panels. IC Role / Device Role / Timing Role: Main MCU executing motor control logic, switch debouncing, LIN communication, and fault monitoring. Use Value: Integrated TPM PWM channels drive H-bridge gate drivers directly; SCI handles LIN messaging to body controller; Stop3 mode enables periodic wake-up for status reporting at <2 μA average current. | Use Scenario: Battery-powered wireless node measuring ambient temperature every 30 seconds and transmitting via sub-GHz RF link. IC Role / Device Role / Timing Role: System controller managing ADC sampling, RTC timing, RF interface enablement, and ultra-low-power sleep scheduling. Use Value: On-chip 1.7 mV/°C temperature sensor eliminates external sensor; Stop3 + RTC wakeup achieves 5+ year battery life on CR2032; internal bandgap reference ensures consistent ADC accuracy across voltage range. |
| Smart Appliance Keypad Interface | Medical Patient Monitor Front-End |
Use Scenario: Touchless or membrane keypad handling for microwave ovens, washing machines, or HVAC controllers. IC Role / Device Role / Timing Role: Dedicated KBI processor scanning up to 8 keys with hardware debounce and interrupt-on-change. Use Value: KBI module wakes CPU only on valid keypress; software-selectable pullups eliminate external resistors; shared ADC pins allow simultaneous status LED brightness control via PWM. | Use Scenario: Low-power front-end acquiring patient temperature, pulse oximetry signals, and button inputs in portable monitors. IC Role / Device Role / Timing Role: Analog signal conditioner and digital coordinator interfacing with analog front-end ICs and display driver. Use Value: 10-bit ADC with automatic compare function triggers alarms on out-of-range vitals; internal LVD monitors supply health; COP watchdog ensures safe shutdown during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08SE8CRL | 8 KB flash, 512 bytes RAM, identical peripheral set and pinout - higher memory capacity in same 16-pin TSSOP package | Suitable where firmware size exceeds 4 KB or additional RAM buffers are required for protocol stacks or logging | Select MC9S08SE8CRL when future firmware expansion or enhanced data buffering is anticipated; no PCB change needed. |
| S9S08SG48E1MTJ | 48-pin LQFP, 4 KB flash, 256 bytes RAM, but adds CAN 2.0B controller and enhanced debug features - different package and expanded interface | Required for designs needing native CAN bus connectivity or higher I/O count; not pin-compatible with MC9S08SE4CRL | Choose S9S08SG48E1MTJ only if CAN interface is mandatory; redesign required due to package and pinout mismatch. |
Compared with MC9S08SE4CRL, MC9S08SE8CRL offers double flash/RAM in identical form factor for seamless scalability, while S9S08SG48E1MTJ trades compactness for CAN capability and higher I/O - making MC9S08SE4CRL optimal for cost- and space-constrained LIN or standalone control nodes.
Availability
MC9S08SE4CRL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance interfaces, and portable medical devices requiring stable component supply and long-term production continuity.
Supply support for MC9S08SE4CRL 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 delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications - formed through the acquisition of Freescale Semiconductor in 2015.
The MC9S08SE4CRL belongs to the legacy HCS08 family, designed specifically for cost-sensitive, low-power embedded control in automotive body electronics and industrial subsystems - emphasizing integration, debug simplicity, and robust operation across extended temperature ranges.
FAQ
What is the maximum bus frequency supported by the MC9S08SE4CRL?
The MC9S08SE4CRL supports a maximum bus frequency of 10 MHz, derived from its 20 MHz HCS08 CPU clock via a 2:1 divider. This frequency is achievable using either the internal clock source (ICS) with FLL or an external crystal/resonator. Operation at 10 MHz ensures deterministic timing for real-time control loops while maintaining low power consumption in active modes.
Does the MC9S08SE4CRL include an internal temperature sensor?
Yes, the MC9S08SE4CRL includes an integrated temperature sensor with a sensitivity of 1.7 mV/°C, accessible via dedicated ADC channel ADP9. This sensor operates in Stop3 mode and does not require external components. Its output is calibrated against the internal bandgap reference, enabling accurate ambient temperature measurement for thermal management or environmental monitoring without adding BOM cost.
Can the MC9S08SE4CRL operate in Stop3 mode while maintaining RTC functionality?
Yes, the MC9S08SE4CRL maintains RTC operation in Stop3 mode, with typical current consumption of 1.44 μA (–40 to 85°C). The RTC uses the low-power oscillator (LPO) or optionally an external 32.768 kHz crystal, and can generate interrupts to wake the CPU. This capability enables precise timekeeping and periodic wake-up for sensor polling or communication events in battery-powered applications.
What debug interface does the MC9S08SE4CRL support?
The MC9S08SE4CRL supports a single-wire background debug (BDC) interface via the PTA4/BKGD/MS pin. This interface enables full in-circuit programming, real-time register inspection, and single breakpoint setting without requiring JTAG headers or additional pins. Debug sessions are compatible with standard Freescale/NXP BDM tools and do not interfere with normal I/O operation when disabled.
Is the MC9S08SE4CRL pin-compatible with other members of the MC9S08SE8 series?
Yes, the MC9S08SE4CRL shares identical pinout and electrical characteristics with the MC9S08SE8CRL in the 16-pin TSSOP package (Case 948F-01). Both devices occupy the same footprint and support identical peripheral mappings, allowing direct substitution where increased flash (8 KB) or RAM (512 B) is required - no PCB revision needed.
MC9S08SE4CRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-DIP (0.600", 15.24mm)
- Series:
- S08
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- LINbus, SCI
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 24
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
MC9S08SE4CRL FAQ
1.How can I place an order for MC9S08SE4CRL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08SE4CRL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S08SE4CRL reliable?
The price and inventory of MC9S08SE4CRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08SE4CRL is usually 5 days.
3.What payment methods are accepted for MC9S08SE4CRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08SE4CRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08SE4CRL?
MC9S08SE4CRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08SE4CRL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S08SE4CRL?
For technical support, including MC9S08SE4CRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08SE4CRL requirements.
6.How does Aetrix verify that MC9S08SE4CRL is sourced from the original manufacturer or authorized distributors?
All MC9S08SE4CRL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S08SE4CRL meets industry standards.
7.What is the process for return or replacement of MC9S08SE4CRL?
All MC9S08SE4CRL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08SE4CRL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S08SE4CRL part is unused and in its original packaging.
Return procedure for MC9S08SE4CRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC9S08SE4CRL Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
