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NXP Semiconductors MC68HC16Z1CAG25
- Part No.:
- MC68HC16Z1CAG25
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
MC68HC16Z1CAG25.pdf
- Description:
- IC MCU 16BIT ROMLESS 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,684
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Product details
Overview
MC68HC16Z1CAG25 from Freescale Semiconductor is a 16-bit microcontroller unit (MCU) featuring the CPU16 core, 32 KB of on-chip ROM (masked), 2 KB of SRAM, and integrated peripherals including ADC, QSM, and GPT. It operates at 25 MHz with 5 V supply and targets automotive and industrial embedded control applications requiring deterministic real-time response.
For engineers reviewing the MC68HC16Z1CAG25 datasheet, MC68HC16Z1CAG25 pinout, MC68HC16Z1CAG25 application, or MC68HC16Z1CAG25 equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-ready sourcing details specific to the CAG25 variant in 80-pin PGA packaging.
Technical Context
The MC68HC16Z1CAG25 implements the CPU16 instruction set architecture with 16-bit data/32-bit address capability, supporting extended addressing via address extension registers and fields. Its System Integration Module (SIM) provides clock synthesis, interrupt arbitration, bus control, and reset management - all configurable via dedicated SIM registers.
It integrates a 10-bit analog-to-digital converter with 8 input channels, a Queued Serial Module (QSM) combining QSPI and SCI interfaces, and a General-Purpose Timer with input capture/output compare functionality. All modules share the intermodule bus and are memory-mapped within a unified 4 GB address space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU16 - 16-bit Harvard-architecture core with 32-bit address extension for linear 4 GB addressing |
| Max Clock Frequency | 25 MHz - defines maximum instruction throughput and peripheral timing margins |
| ROM Size | 32 KB masked ROM - non-volatile program storage; unalterable after fabrication |
| SRAM Size | 2 KB standby SRAM - retains data during STOP mode with external VSTBY supply |
| ADC Resolution | 10-bit successive approximation - supports 0–5 V input range with ±1 LSB INL |
| I/O Pins | 64 general-purpose I/O - configurable per port register with direction control and pull-up enable |
| Package | 80-pin Plastic Grid Array (PGA) - thermal and mechanical profile suited for convection-cooled industrial PCBs |
Pinout & Package
MC68HC16Z1CAG25 is housed in an 80-pin Plastic Grid Array (PGA) package with 0.1 inch pitch and ceramic-filled epoxy body. Thermal resistance θJA = 45°C/W enables operation up to +85°C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power Supply / Ground | Dual 5 V supply pins with dedicated ground returns; decoupling required within 1 cm |
| CLKIN, CLKOUT | External Clock Input / Buffered Output | Accepts crystal or external clock; CLKOUT drives system timing for peripheral sync |
| RESET | Active-Low Reset Input | Asynchronous reset assertion clears CPU registers and initializes SIM, SRAM, and peripheral states |
| IRQ, XIRQ | Interrupt Request Inputs | Level-sensitive IRQ supports priority-based vectoring; XIRQ enables fast non-maskable service |
| AD0–AD7 | Analog Input Channels | Eight single-ended 10-bit ADC inputs; internally multiplexed to SAR converter |
| PORTA[7:0] | General-Purpose I/O Port | Bi-directional 8-bit port with individual direction control and read-modify-write capability |
Key Features
| Feature | Design Value |
|---|---|
| Background Debug Mode (BDM) | On-chip debug interface enabling real-time register inspection, breakpoint insertion, and opcode tracing without halting full system operation |
| Low-Power STOP Mode | Reduces current draw to <10 µA while preserving SRAM contents and enabling wake-up via IRQ, RTC, or external pin edge |
| Queued Serial Module (QSM) | Hardware FIFO-based serial interface supporting simultaneous QSPI master/slave and SCI asynchronous communication |
| System Protection Logic | Integrated watchdog timer, bus monitor, halt monitor, and spurious interrupt detection to enforce fail-safe MCU behavior |
| Dynamic Bus Sizing | Automatic adaptation to 8-/16-bit external memory or peripheral devices without software reconfiguration |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Real-time sampling of throttle position, coolant temperature, and oxygen sensor signals in gasoline engine management systems. IC Role / Device Role / Timing Role: Central controller executing closed-loop fuel injection and spark timing algorithms with sub-100 µs interrupt latency. Use Value: Deterministic 25 MHz CPU16 execution and hardware ADC trigger synchronization ensure consistent 10 kHz sampling across 8 analog channels. | Use Scenario: Localized logic control and fieldbus interfacing in modular programmable logic controllers with distributed I/O. IC Role / Device Role / Timing Role: Standalone controller managing digital input debouncing, PWM output generation, and Modbus RTU over RS-485. Use Value: Integrated QSM supports simultaneous SCI (Modbus) and QSPI (local flash or DAC) communication without CPU overhead. |
| Medical Infusion Pump Controller | Energy Meter Data Acquisition Unit |
Use Scenario: Precision motor control and safety-critical fault monitoring in battery-powered infusion pumps requiring regulatory compliance. IC Role / Device Role / Timing Role: Safety-monitoring MCU supervising stepper motor sequencing, occlusion detection, and battery voltage regulation. Use Value: Hardware watchdog, bus monitor, and STOP-mode wake-on-IRQ provide certified fault containment per IEC 62304 Class B requirements. | Use Scenario: Isolated metering front-end acquiring voltage/current waveforms and computing RMS, harmonics, and energy totals. IC Role / Device Role / Timing Role: Signal acquisition processor interfacing with sigma-delta ADCs and communicating via SPI to metrology ASIC. Use Value: 10-bit ADC with programmable sample time and internal reference enables direct sensor interface without external op-amp buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC16Z2CAG25 | Includes 64 KB masked ROM and adds MRM module; identical pinout and clock spec | Supports larger firmware images; no change to peripheral configuration or timing | Select when firmware exceeds 32 KB and ROM expansion is needed without layout revision |
| MC9328MX1CZK | ARM920T core, 200 MHz, integrated LCD controller and USB OTG; BGA-256 package | Targets higher-performance HMI and connectivity applications; requires new PCB and toolchain | Choose for next-generation designs needing Linux support, multimedia, or USB host capability |
Compared with MC68HC16Z1CAG25, the Z2 variant offers double ROM capacity with full compatibility, while the MC9328MX1CZK represents a generational shift toward ARM-based processing - requiring new hardware design but delivering orders-of-magnitude higher throughput and peripheral integration.
Availability
MC68HC16Z1CAG25 is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC prototyping, and medical device production requiring stable component supply and long-term lifecycle assurance.
Supply support for MC68HC16Z1CAG25 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) was a leading designer of embedded processors, analog, and mixed-signal ICs for automotive, industrial, and networking markets.
The M68HC16Z series was developed as a high-reliability 16-bit MCU family targeting deterministic real-time control in harsh environments - emphasizing robust clock management, on-chip diagnostics, and low-power operational modes.
FAQ
What is the operating voltage range for the MC68HC16Z1CAG25?
The MC68HC16Z1CAG25 operates from a nominal 5.0 V ±10% supply (4.5 V to 5.5 V). Both VDD and VSS pins must be properly decoupled using 100 nF ceramic capacitors placed within 1 cm of the package. The standby SRAM requires a separate VSTBY supply (2.0 V to 5.5 V) to retain data during STOP mode.
Does the MC68HC16Z1CAG25 support in-circuit debugging?
Yes, the MC68HC16Z1CAG25 includes a Background Debug Mode (BDM) interface compliant with Motorola's BDM specification. This allows real-time register access, breakpoint insertion, and opcode tracing using standard BDM pods or compatible debug adapters - all without requiring additional debug pins beyond the dedicated BKGD pin.
What peripheral modules are integrated into the MC68HC16Z1CAG25?
The MC68HC16Z1CAG25 integrates a 10-bit 8-channel ADC, Queued Serial Module (QSM) with QSPI and SCI subsystems, General-Purpose Timer (GPT) with input capture/output compare, System Integration Module (SIM), and 2 KB of standby SRAM. It does not include MCCI or CAN interfaces - those are exclusive to the Z4/CKZ4 variants.
Is the MC68HC16Z1CAG25 pin-compatible with other members of the M68HC16Z family?
Yes, the MC68HC16Z1CAG25 shares identical 80-pin PGA pinout and signal assignments with MC68HC16Z2CAG25 and MC68HC16Z3CAG25. Differences are limited to mask ROM content and internal module enablement - allowing drop-in replacement where firmware size and feature set align.
What is the maximum achievable ADC sampling rate on the MC68HC16Z1CAG25?
The MC68HC16Z1CAG25 ADC achieves up to 50 kSPS maximum conversion rate under optimal conditions: 25 MHz system clock, minimum sample time setting (2 ADCLK cycles), and single-channel sequential mode. Actual sustained rate depends on channel count, sample time configuration, and CPU overhead for result handling.
MC68HC16Z1CAG25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- HC16
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- CPU16
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- EBI/EMI, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
- Surface Mount
- Supplier Device Package:
MC68HC16Z1CAG25 FAQ
1.How can I place an order for MC68HC16Z1CAG25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC16Z1CAG25 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 MC68HC16Z1CAG25 reliable?
The price and inventory of MC68HC16Z1CAG25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC16Z1CAG25 is usually 5 days.
3.What payment methods are accepted for MC68HC16Z1CAG25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC16Z1CAG25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC16Z1CAG25?
MC68HC16Z1CAG25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC16Z1CAG25 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 MC68HC16Z1CAG25?
For technical support, including MC68HC16Z1CAG25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC16Z1CAG25 requirements.
6.How does Aetrix verify that MC68HC16Z1CAG25 is sourced from the original manufacturer or authorized distributors?
All MC68HC16Z1CAG25 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 MC68HC16Z1CAG25 meets industry standards.
7.What is the process for return or replacement of MC68HC16Z1CAG25?
All MC68HC16Z1CAG25 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC16Z1CAG25, 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 MC68HC16Z1CAG25 part is unused and in its original packaging.
Return procedure for MC68HC16Z1CAG25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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