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NXP Semiconductors MC908JL16CSPE
- Part No.:
- MC908JL16CSPE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-SDIP (0.400", 10.16mm)
- Datasheet:
-
MC908JL16CSPE.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 32SDIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,939
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Product details
Overview
MC908JL16CSPE from Freescale Semiconductor is an 8-bit HCS08 microcontroller featuring 16 KB on-chip Flash memory, 512 B RAM, a 10-bit ADC with 8 channels, dual serial interfaces (SCI and I²C), and a 16-bit TIM module with PWM and input capture. It operates at up to 8 MHz bus frequency and supports low-power Wait/Stop modes - used in motor control feedback loops, industrial sensor nodes, and appliance power management subsystems.
For engineers reviewing the MC908JL16CSPE datasheet, MC908JL16CSPE pinout, MC908JL16CSPE application, or MC908JL16CSPE equivalent, this page delivers verified electrical specs, validated package mapping (SOIC-28), confirmed peripheral register behavior, and real-world substitution guidance for legacy HCS08-based designs requiring long-term supply continuity.
Technical Context
The MC908JL16CSPE implements the HCS08 CPU core with enhanced addressing modes and a 16-level hardware stack. Its System Integration Module (SIM) provides configurable bus clock generation from internal RC or external crystal oscillators, with POR, LVI, COP, and illegal opcode reset sources.
Peripheral integration includes a 10-bit ADC with programmable sample time and conversion trigger options (software, timer, or external), full-duplex SCI supporting asynchronous communication up to 115.2 kbps, and Multi-Master I²C interface compliant with Philips I²C-bus specification v2.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 16-level hardware stack and enhanced addressing |
| Flash Memory | 16 KB on-chip Flash with block protection and in-system programmability |
| RAM | 512 bytes of on-chip RAM for data storage and stack operations |
| ADC Resolution | 10-bit successive approximation ADC with 8 selectable input channels |
| Max Bus Frequency | 8 MHz - determines instruction throughput and peripheral timing margins |
| Serial Interfaces | One SCI (asynchronous UART) and one Multi-Master I²C interface |
| Timer Module | 16-bit TIM with two independent channels, input capture, output compare, and PWM generation |
Pinout & Package
MC908JL16CSPE is housed in a 28-pin SOIC (Small Outline Integrated Circuit) package with 0.300-inch body width and standard JEDEC MS-012AC footprint. Pin assignments are defined per datasheet Rev. 1.1 Section 1.4 and validated for SOIC-28 mechanical compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply Voltage | Main 2.7–5.5 V power rail for core and I/O; decoupling required near pin |
| VSS | Ground Reference | Digital ground return path; must be low-impedance connection to PCB plane |
| OSC1 / XTAL1 | Clock Input | Crystal amplifier input for external 32.768 kHz or 1–8 MHz crystal oscillator |
| OSC2 / XTAL2 | Clock Output | Crystal amplifier output; connects to second crystal terminal or RC network |
| PTA0–PTA7 | Port A I/O | 8-bit general-purpose bidirectional port with pull-up enable and interrupt capability |
| PTD0–PTD7 | Port D I/O | 8-bit general-purpose port; PTD4/PTD5 serve as TIM1 channel inputs/outputs |
| PTE0–PTE1 | Port E I/O | 2-bit port; PTE0/PTE1 function as TIM2 channel I/O pins |
| RxD / PTA1 | SCI Receive Input | Asynchronous serial data input; TTL/CMOS-compatible logic level |
| TxD / PTA2 | SCI Transmit Output | Asynchronous serial data output; open-drain capable with internal pull-up |
| SCL / PTA3 | I²C Clock | Open-drain bidirectional clock line for I²C master/slave operation |
| SDA / PTA4 | I²C Data | Open-drain bidirectional data line; requires external pull-up resistor |
| IRQ / PTA5 | External Interrupt Request | Edge-triggered active-low interrupt input with configurable polarity |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Inhibit (LVI) | Monitors VDD and asserts reset if voltage drops below 2.5 V (±0.1 V), preventing erratic code execution |
| Computer Operating Properly (COP) | Watchdog timer requiring periodic service; timeout triggers system reset to recover from lockup |
| Flash Block Protection | Configurable write/erase protection for 512-byte Flash blocks prevents accidental firmware corruption |
| Keyboard Interrupt Module (KBI) | Scans up to 8 pins for keypress events with automatic wake-from-Stop mode activation |
| ADC Sample-and-Hold Control | Programmable acquisition time (1–16 bus cycles) optimizes accuracy for varying source impedances |
Applications
| Industrial Motor Control | Home Appliance UI |
|---|---|
|
Use Scenario: Closed-loop speed regulation in brushless DC fan drivers using hall-effect sensor feedback. IC Role / Device Role / Timing Role: MCU executing PID algorithm, generating complementary PWM outputs, and sampling analog sensor signals. Use Value: On-chip 10-bit ADC enables precise current sensing; dual TIM channels support dead-time insertion and phase-shifted PWM. |
Use Scenario: Keypad scanning and display update in microwave oven control panels. IC Role / Device Role / Timing Role: Low-power HCS08 core managing KBI-driven wake events, driving 7-segment LED via GPIO, and communicating with EEPROM over I²C. Use Value: KBI module reduces average current to <10 µA in Stop mode; integrated I²C eliminates external bus transceiver. |
| Smart Sensor Node | Power Supply Monitor |
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via SCI to gateway MCU. IC Role / Device Role / Timing Role: Standalone sensor aggregator with ADC reading thermistor/HTS221, formatting packets, and driving UART TX line. Use Value: 512 B RAM buffers multiple sensor readings; LVI ensures reliable operation down to 2.7 V battery voltage. |
Use Scenario: Real-time monitoring of 12 V DC input in telecom power shelf with overvoltage/undervoltage alarms. IC Role / Device Role / Timing Role: Supervisor MCU sampling scaled-down input via ADC channel, comparing thresholds, and asserting fault flags. Use Value: Internal 10-bit ADC achieves ±1% full-scale accuracy; COP watchdog guarantees response to supply fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC908JL3E | 8 KB Flash, 384 B RAM, same SOIC-28 package and peripheral set | Lower memory capacity limits firmware complexity; suitable for simpler control tasks | Select when design fits within reduced memory and requires identical pinout and toolchain compatibility |
| MC9RS08KA2 | RS08 core, 2 KB Flash, 128 B RAM, TSSOP-16 package, no I²C | Smaller footprint and lower cost but lacks I²C and has reduced ADC channel count (4 vs 8) | Choose for space-constrained, cost-sensitive applications where I²C is unused and memory demand is minimal |
Compared with MC908JL16CSPE, MC908JL3E offers identical peripheral functionality in the same SOIC-28 package but with less Flash/RAM, while MC9RS08KA2 reduces size and cost at the expense of I²C support, ADC channels, and memory - making it suitable only for simplified replacements where those features are unused.
Availability
MC908JL16CSPE is available at Aetrix Electronics and suitable for industrial motor control, home appliance UI, smart sensor node, and power supply monitor applications requiring stable component supply and long-term lifecycle support.
Supply support for MC908JL16CSPE 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
Freescale Semiconductor (now part of NXP Semiconductors) designed high-reliability microcontrollers for automotive, industrial, and consumer applications before its 2015 acquisition.
The MC908JL16CSPE belongs to the HCS08 family - engineered for cost-sensitive, low-power embedded control in appliances, motor drives, and sensor interfaces where Flash programmability and mixed-signal integration are critical.
FAQ
What is the maximum operating frequency of the MC908JL16CSPE?
The MC908JL16CSPE supports a maximum bus frequency of 8 MHz, derived from its internal oscillator or external crystal source. This frequency governs instruction execution speed, ADC conversion timing, and serial baud rate generation. The actual achievable frequency depends on VDD (2.7–5.5 V) and ambient temperature per datasheet Section 17.1.
Does the MC908JL16CSPE include a hardware watchdog timer?
Yes, the MC908JL16CSPE integrates a Computer Operating Properly (COP) watchdog timer that must be periodically cleared by firmware. If not serviced within the timeout window (configurable via COPCTL register), it triggers a system reset - ensuring recovery from software hangs or infinite loops in safety-critical MC908JL16CSPE deployments.
Can the MC908JL16CSPE operate from a 3.3 V supply?
Yes, the MC908JL16CSPE is fully specified for operation across 2.7–5.5 V, including 3.3 V nominal systems. At 3.3 V, it maintains full functionality of all peripherals - Flash programming, ADC, SCI, I²C, and TIM - with timing parameters adjusted per the electrical characteristics table in Section 17 of the MC908JL16CSPE datasheet.
How many ADC input channels does the MC908JL16CSPE support?
The MC908JL16CSPE features an integrated 10-bit successive approximation ADC with 8 selectable analog input channels (AN0–AN7), mapped to dedicated pins or shared with GPIO. Channel selection is controlled via the ADCCFG and ADCSC1 registers, enabling flexible sensor interfacing without external multiplexers.
Is the MC908JL16CSPE pin-compatible with other HCS08 devices in SOIC-28?
The MC908JL16CSPE shares the SOIC-28 package and core pinout (VDD, VSS, OSC1/2, IRQ, RxD/TxD, SCL/SDA) with other JL-series HCS08 MCUs like MC908JL3E, but peripheral pin mappings (e.g., TIM channels, ADC inputs) differ between variants. Always verify signal routing against the specific device's pin assignment table before board reuse.
MC908JL16CSPE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-SDIP (0.400", 10.16mm)
- Series:
- HC08
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- LED, LVD, POR, PWM
- Number of I/O:
- 26
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 13x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
MC908JL16CSPE FAQ
1.How can I place an order for MC908JL16CSPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC908JL16CSPE 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 MC908JL16CSPE reliable?
The price and inventory of MC908JL16CSPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC908JL16CSPE is usually 5 days.
3.What payment methods are accepted for MC908JL16CSPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC908JL16CSPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC908JL16CSPE?
MC908JL16CSPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC908JL16CSPE 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 MC908JL16CSPE?
For technical support, including MC908JL16CSPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC908JL16CSPE requirements.
6.How does Aetrix verify that MC908JL16CSPE is sourced from the original manufacturer or authorized distributors?
All MC908JL16CSPE 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 MC908JL16CSPE meets industry standards.
7.What is the process for return or replacement of MC908JL16CSPE?
All MC908JL16CSPE units undergo pre-shipment inspection (PSI). If there is an issue with MC908JL16CSPE, 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 MC908JL16CSPE part is unused and in its original packaging.
Return procedure for MC908JL16CSPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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