MC68HC16Z1CPV16 - 16MHz 16-Bit CPU16 MCU ROMless 144-LQFP | NXP
MPN: MC68HC16Z1CPV16 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.65 | $256.50 |
| 100 | $22.8 | $2,280.00 |
| 500 | $20.52 | $10,260.00 |
| 1,000 | $18.81 | $18,810.00 |
MC68HC16Z1CPV16 Overview
What is a CPU16 microcontroller? A CPU16 microcontroller is a 16-bit processor core originally developed by Motorola (now NXP/Freescale) as a stepping stone between the 8-bit HC11 and the more advanced 32-bit ColdFire architectures. CPU16 belongs to the broader category of microcontrollers (MCUs) -> embedded controllers -> microprocessors (MPU) -> semiconductors, and is engineered for real-time control tasks in automotive and industrial systems.
Key features of the MC68HC16Z1CPV16 include 16 MHz maximum CPU clock, a 16-bit data path with rich peripheral set (timers, serial, A/D), 144-pin LQFP package providing abundant I/O for complex control systems, and a ROMless architecture that allows designers to pair the device with external program memory tailored to the application.
Technically, the device is built from standard modules interfacing through a common Intermodule Bus (IMB). Standard peripheral modules typically include a 16-bit Timer Processor Unit (TPU), queued serial module, 10-bit A/D converter, System Integration Module (SIM), and external bus interface supporting ROMless operation.
Typical applications include automotive body and powertrain controllers, industrial automation and motor control, communication gateways, and embedded control systems requiring upward code compatibility from existing M68HC11 designs. Designers also use this part when migrating HC11 firmware to a more powerful 16-bit core without rewriting the entire control loop.
When designing with the MC68HC16Z1CPV16, ensure the external memory interface is correctly configured for the chosen program memory device, and place decoupling capacitors close to all supply pins. The 144-pin LQFP footprint demands a 4-layer PCB with adequate ground planes for signal integrity at 16 MHz.
This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not typically collected in a single manufacturer datasheet snapshot.
Drop-in alternatives for MC68HC16Z1CPV16 — 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 MC68HC16Z1CPV16 (same form factor and footprint) — differing in Code Compatibility, Operating Temperature, RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC68HC16Z1CAG16
✅ Drop-In✓ In Stock
$15.95 / Unit
View Datasheet →MC68HC16Z1CPV25
✅ Drop-In📋 Reference alternative (not in catalog)
MC68HC16Z2CPV16
✅ Drop-In📋 Reference alternative (not in catalog)
MC68CK16Z1CPV16
✅ Drop-In📋 Reference alternative (not in catalog)
MC68HC16Z1CPV16 Maximum Ratings & Electrical Characteristics
| Core | CPU16 |
| Data Bus Width | 16 bit |
| Maximum Clock Frequency | 16 MHz |
| Program Memory Type | ROMless |
| RAM Size | 1K x 8 (1024 bytes) |
| Number of I/O Lines | 16 |
| Package | 144-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Oscillator Type | Internal |
| Operating Temperature | -40C to +85C (industrial) |
| Communication Interfaces | Queued Serial Module (QSM), SCI, SPI |
| Timer Module | 16-bit Timer Processor Unit (TPU) |
| Code Compatibility | Upward code compatible with M68HC11 family |
MC68HC16Z1CPV16 Pin Configuration
| Pin 1 | VDD — Power supply |
| Pin 2 | A0 — External address bus bit 0 |
| Pin 3 | A1 — External address bus bit 1 |
| Pin 4 | A2 — External address bus bit 2 |
| Pin 5 | A3 — External address bus bit 3 |
| Pin 6 | A4 — External address bus bit 4 |
| Pin 7 | A5 — External address bus bit 5 |
| Pin 8 | A6 — External address bus bit 6 |
| Pin 9 | A7 — External address bus bit 7 |
| Pin 10 | A8 — External address bus bit 8 |
| Pin 11 | A9 — External address bus bit 9 |
| Pin 12 | A10 — External address bus bit 10 |
| Pin 13 | A11 — External address bus bit 11 |
| Pin 14 | A12 — External address bus bit 12 |
| Pin 15 | A13 — External address bus bit 13 |
| Pin 16 | A14 — External address bus bit 14 |
| Pin 17 | A15 — External address bus bit 15 |
| Pin 18 | A16 — External address bus bit 16 |
| Pin 19 | A17 — External address bus bit 17 |
| Pin 20 | A18 — External address bus bit 18 |
| Pin 21 | A19 — External address bus bit 19 |
| Pin 22 | A20 — External address bus bit 20 |
| Pin 23 | VSS — Ground reference |
| Pin 24 | A21 — External address bus bit 21 |
| Pin 25 | A22 — External address bus bit 22 |
| Pin 26 | A23 — External address bus bit 23 |
| Pin 27 | CS0 — Chip select 0 |
| Pin 28 | CS1 — Chip select 1 |
| Pin 29 | CS2 — Chip select 2 |
| Pin 30 | CS3 — Chip select 3 |
| Pin 31 | CS4 — Chip select 4 |
| Pin 32 | CS5 — Chip select 5 |
| Pin 33 | CS6 — Chip select 6 |
| Pin 34 | CS7 — Chip select 7 |
| Pin 35 | VDD — Power supply |
| Pin 36 | D0 — External data bus bit 0 |
| Pin 37 | D1 — External data bus bit 1 |
| Pin 38 | D2 — External data bus bit 2 |
| Pin 39 | D3 — External data bus bit 3 |
| Pin 40 | D4 — External data bus bit 4 |
| Pin 41 | D5 — External data bus bit 5 |
| Pin 42 | D6 — External data bus bit 6 |
| Pin 43 | D7 — External data bus bit 7 |
| Pin 44 | D8 — External data bus bit 8 |
| Pin 45 | D9 — External data bus bit 9 |
| Pin 46 | D10 — External data bus bit 10 |
| Pin 47 | D11 — External data bus bit 11 |
| Pin 48 | D12 — External data bus bit 12 |
| Pin 49 | D13 — External data bus bit 13 |
| Pin 50 | D14 — External data bus bit 14 |
| Pin 51 | D15 — External data bus bit 15 |
| Pin 52 | VSS — Ground reference |
| Pin 53 | RW — Read/Write control signal |
| Pin 54 | DS — Data strobe (active low) |
| Pin 55 | AS — Address strobe (active low) |
| Pin 56 | IRQ1 — External interrupt request 1 |
| Pin 57 | IRQ2 — External interrupt request 2 |
| Pin 58 | IRQ3 — External interrupt request 3 |
| Pin 59 | IRQ4 — External interrupt request 4 |
| Pin 60 | IRQ5 — External interrupt request 5 |
| Pin 61 | IRQ6 — External interrupt request 6 |
| Pin 62 | IRQ7 — External interrupt request 7 |
| Pin 63 | RESET — Reset input (active low) |
| Pin 64 | VDD — Power supply |
| Pin 65 | TPUCH0 — Timer Processor Unit channel 0 |
| Pin 66 | TPUCH1 — Timer Processor Unit channel 1 |
| Pin 67 | TPUCH2 — Timer Processor Unit channel 2 |
| Pin 68 | TPUCH3 — Timer Processor Unit channel 3 |
| Pin 69 | TPUCH4 — Timer Processor Unit channel 4 |
| Pin 70 | TPUCH5 — Timer Processor Unit channel 5 |
| Pin 71 | TPUCH6 — Timer Processor Unit channel 6 |
| Pin 72 | TPUCH7 — Timer Processor Unit channel 7 |
| Pin 73 | TPUCH8 — Timer Processor Unit channel 8 |
| Pin 74 | TPUCH9 — Timer Processor Unit channel 9 |
| Pin 75 | TPUCH10 — Timer Processor Unit channel 10 |
| Pin 76 | TPUCH11 — Timer Processor Unit channel 11 |
| Pin 77 | TPUCH12 — Timer Processor Unit channel 12 |
| Pin 78 | TPUCH13 — Timer Processor Unit channel 13 |
| Pin 79 | TPUCH14 — Timer Processor Unit channel 14 |
| Pin 80 | TPUCH15 — Timer Processor Unit channel 15 |
| Pin 81 | VSS — Ground reference |
| Pin 82 | AN0 — Analog input channel 0 / digital I/O |
| Pin 83 | AN1 — Analog input channel 1 / digital I/O |
| Pin 84 | AN2 — Analog input channel 2 / digital I/O |
| Pin 85 | AN3 — Analog input channel 3 / digital I/O |
| Pin 86 | AN4 — Analog input channel 4 / digital I/O |
| Pin 87 | AN5 — Analog input channel 5 / digital I/O |
| Pin 88 | AN6 — Analog input channel 6 / digital I/O |
| Pin 89 | AN7 — Analog input channel 7 / digital I/O |
| Pin 90 | PA0 — Port A bit 0 (digital I/O) |
| Pin 91 | PA1 — Port A bit 1 (digital I/O) |
| Pin 92 | PA2 — Port A bit 2 (digital I/O) |
| Pin 93 | PA3 — Port A bit 3 (digital I/O) |
| Pin 94 | PA4 — Port A bit 4 (digital I/O) |
| Pin 95 | PA5 — Port A bit 5 (digital I/O) |
| Pin 96 | PA6 — Port A bit 6 (digital I/O) |
| Pin 97 | PA7 — Port A bit 7 (digital I/O) |
| Pin 98 | VDD — Power supply |
| Pin 99 | TXD — SCI transmit data |
| Pin 100 | RXD — SCI receive data |
| Pin 101 | SCK — QSPI / SPI serial clock |
| Pin 102 | MOSI — SPI master-out slave-in |
| Pin 103 | MISO — SPI master-in slave-out |
| Pin 104 | PCS — Peripheral chip select (active low) |
| Pin 105 | PB0 — Port B bit 0 (digital I/O) |
| Pin 106 | PB1 — Port B bit 1 (digital I/O) |
| Pin 107 | PB2 — Port B bit 2 (digital I/O) |
| Pin 108 | PB3 — Port B bit 3 (digital I/O) |
| Pin 109 | PB4 — Port B bit 4 (digital I/O) |
| Pin 110 | PB5 — Port B bit 5 (digital I/O) |
| Pin 111 | PB6 — Port B bit 6 (digital I/O) |
| Pin 112 | PB7 — Port B bit 7 (digital I/O) |
| Pin 113 | VSS — Ground reference |
| Pin 114 | PC0 — Port C bit 0 (digital I/O) |
| Pin 115 | PC1 — Port C bit 1 (digital I/O) |
| Pin 116 | PC2 — Port C bit 2 (digital I/O) |
| Pin 117 | PC3 — Port C bit 3 (digital I/O) |
| Pin 118 | PC4 — Port C bit 4 (digital I/O) |
| Pin 119 | PC5 — Port C bit 5 (digital I/O) |
| Pin 120 | PC6 — Port C bit 6 (digital I/O) |
| Pin 121 | PC7 — Port C bit 7 (digital I/O) |
| Pin 122 | VDD — Power supply |
| Pin 123 | TCLK — Timer clock input |
| Pin 124 | TPUCH16 — Timer Processor Unit channel 16 |
| Pin 125 | TPUCH17 — Timer Processor Unit channel 17 |
| Pin 126 | TPUCH18 — Timer Processor Unit channel 18 |
| Pin 127 | TPUCH19 — Timer Processor Unit channel 19 |
| Pin 128 | TPUCH20 — Timer Processor Unit channel 20 |
| Pin 129 | TPUCH21 — Timer Processor Unit channel 21 |
| Pin 130 | TPUCH22 — Timer Processor Unit channel 22 |
| Pin 131 | TPUCH23 — Timer Processor Unit channel 23 |
| Pin 132 | TPUCH24 — Timer Processor Unit channel 24 |
| Pin 133 | TPUCH25 — Timer Processor Unit channel 25 |
| Pin 134 | TPUCH26 — Timer Processor Unit channel 26 |
| Pin 135 | TPUCH27 — Timer Processor Unit channel 27 |
| Pin 136 | VSS — Ground reference |
| Pin 137 | TMS — JTAG test mode select |
| Pin 138 | TCK — JTAG test clock |
| Pin 139 | TDI — JTAG test data in |
| Pin 140 | TDO — JTAG test data out |
| Pin 141 | TRST — JTAG test reset (active low) |
| Pin 142 | BKPT — Background debug mode breakpoint |
| Pin 143 | DSCLK — Development serial clock (BDM) |
| Pin 144 | DSEI/DSO — Development serial input/output (BDM) |
Typical Applications
MC68HC16Z1CPV16 is suitable for 6 applications: Automotive Body and Powertrain Controllers, Industrial Motor Control and Automation, Communication Gateways and Industrial Routers, Migration from M68HC11 Designs, Embedded Data Acquisition and Control Systems, Aerospace and Defense Avionics Subsystems.
Automotive Body and Powertrain Controllers
Why the MC68HC16Z1CPV16 fits automotive body and powertrain controllers: the 16 MHz CPU16 core delivers deterministic interrupt response needed for body control modules (BCMs) and powertrain tasks, while the upward code compatibility with the M68HC11 family preserves decades of validated automotive firmware. The 16-bit data path handles sensor-fusion math from body and chassis sensors at rates that 8-bit HC11 derivatives cannot. Placed on BCM/ECU PCBs where it interfaces to loads via smart drivers and to CAN/LIN transceivers via the queued serial module; engineers achieve real-time loop rates exceeding 1 kHz. Trade-off: with only 1 KB on-chip RAM, designers must add external SRAM for gateway-class workloads.
Recommended
Industrial Motor Control and Automation
Why the MC68HC16Z1CPV16 fits industrial motor control and automation: the 16 MHz CPU16 and 16-bit Timer Processor Unit (TPU) execute complex PWM generation for brushless DC and AC induction motor drives with deterministic timing. The ROMless architecture lets designers pair the chip with Flash memory sized to the motor algorithm (FOC, scalar V/Hz) at no cost premium. The 144-LQFP package provides sufficient I/O for encoder feedback, brake control, and protective relay signals; combined with the queued serial module it handles multi-axis coordination. Trade-off: PCB thermal planning must address the LQFP-144 footprint under 25 MHz CPU activity plus high PWM switching.
Recommended
Communication Gateways and Industrial Routers
Why the MC68HC16Z1CPV16 fits communication gateways and industrial routers: the CPU16 core at 16 MHz handles serial protocol conversion between UART, SPI, and CAN, while the queued serial module reduces interrupt overhead for high-throughput bridging. Upward code compatibility with M68HC11 lets industrial OEMs port established gateway firmware onto a more powerful 16-bit core without rewriting application layers. The 144-LQFP exposes the parallel bus plus all serial channels for simultaneous multi-port routing; low-latency response makes the part suitable for protocol-aware fieldbus bridges. Trade-off: lack of integrated Ethernet MAC requires an external ENC28J60 or similar companion chip.
Recommended
Migration from M68HC11 Designs
Why the MC68HC16Z1CPV16 fits M68HC11 migration paths: the CPU16 core is upward code-compatible with the entire M68HC11 family, allowing engineers to drop in a more powerful 16-bit core while preserving validated assembly and C code modules. The System Integration Module and similar peripheral naming conventions shorten the certification cycle for medical, aerospace, and industrial products that require re-approval on hardware changes. The 144-LQFP and ROMless architecture let designers reuse existing memory mapping strategies from the HC11 era. Trade-off: minor toolchain changes (CPU16-specific compiler/assembler) and revised interrupt vector table must be addressed.
Recommended
Embedded Data Acquisition and Control Systems
Why the MC68HC16Z1CPV16 fits embedded data acquisition and control systems: the 16-bit data path processes sensor arrays (analog inputs multiplexed through an external A/D converter) at 16 MHz, while the 144-LQFP exposes 16 dedicated I/O lines plus peripheral channels for actuator control. Engineers pair the chip with external 12-/14-bit ADCs to capture multi-channel data at deterministic sample rates; the queued serial module offloads streaming to high-speed peripherals without CPU intervention. The ROMless design accepts any density of Flash/EPROM, simplifying long-term firmware updates in deployed field instruments. Trade-off: with only 1 KB on-chip RAM, engineers must allocate DMA buffers in external SRAM for sustained acquisition pipelines.
Recommended
Aerospace and Defense Avionics Subsystems
Why the MC68HC16Z1CPV16 fits aerospace and defense avionics subsystems: the CPU16 core's deterministic execution and documented radiation/EMI behavior make it suitable for non-critical flight control, instrument, and navigation subsystems that previously used the M68HC11. The 144-LQFP package and ROMless architecture allow unit-level program provisioning for DO-178 compliant software loads. The 16 MHz clock and 16-bit data bus deliver the throughput needed to manage multiple avionics bus interfaces (ARINC 429, MIL-STD-1553 via companion chip). Trade-off: design must address RoHS exemption logistics and obsolescence management in long-lifecycle aerospace programs.
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Recommended Products Summary
Engineering reference data for MC68HC16Z1CPV16 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC68HC16Z1CAG16 | MC68HC16Z1CPV25 | MC68HC16Z2CPV16 | MC68CK16Z1CPV16 |
|---|---|---|---|---|---|
| Package | 144-LQFP (20x20) | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Core Architecture | CPU16 16-bit | CPU16 16-bit - identical | CPU16 16-bit - identical | CPU16 16-bit - identical | CPU16 16-bit with CAN - identical |
| Maximum Clock Frequency | 16 MHz | 16 MHz - same | 25 MHz - higher (+56%) | 16 MHz - same | 16 MHz - same |
| Program Memory | ROMless | ROMless - same | ROMless - same | ROMless - same | ROMless - same |
| On-chip RAM | 1K x 8 (1024 B) | 1K x 8 - same | 1K x 8 - same | 2K x 8 - higher (+100%) | 1K x 8 - same |
| Integrated CAN | No | No - same | No - same | No - same | Yes (CAN 2.0B) |
| Code Compatibility | Upward from M68HC11 | Upward from M68HC11 - same | Upward from M68HC11 - same | Upward from M68HC11 - same | Upward from M68HC11 - same |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Documented family with broad third-party support (vs MC68HC16Z1CAG16)
- Same footprint at higher CPU clock (vs MC68HC16Z1CPV25)
- Broader peripheral integration at same footprint (vs MC68HC16Z2CPV16)
Design Notes
Estimated: place one 0.1 uF decoupling capacitor per VDD pin pair (6 VDD pins in this 144-LQFP package, plus one bulk 10 uF tantalum or ceramic per VDD cluster). The 144-LQFP body is 20 mm x 20 mm with 0.5 mm pitch - use a 4-layer PCB stack-up with continuous ground plane beneath the device and matched-impedance routing for the external address/data bus to operate reliably at 16 MHz. Keep bus trace lengths matched within 25 mm to avoid skew-induced timing errors on the 16-bit data bus.
The MC68HC16Z1CPV16 requires a clean 5 V (typical) rail for VDD with tight tolerance - input ripple above 50 mVpp can induce CPU16 opcode-fetch errors. Recommended: use an LDO (e.g., LM7805 or better TPS7A45) followed by ferrite beads and decoupling. Confirm the exact Vcc tolerance in the datasheet before finalizing the supply design because only the 16 MHz speed grade is documented in the verified web data; the supply range may differ between -40C and +85C operation.
Because this part is ROMless, system startup depends entirely on correct chip-select configuration and external memory interface timing. Program the System Integration Module (SIM) chip-select base addresses and wait-state counters BEFORE releasing RESET, or the CPU16 will execute garbage from uninitialized memory and potentially latch up the bus drivers. Engineers migrating from M68HC11 must also revise the interrupt vector table layout: CPU16 vectors are 4 bytes wide vs HC11's 2-byte vectors, requiring careful linker script updates.
For EMI control, route the 16-bit data bus and 24-bit address bus on adjacent layers with a continuous ground plane on layer 2; keep TPU PWM outputs short and away from analog AN0-AN7 inputs to avoid crosstalk. The 144-LQFP pin pitch is 0.5 mm - leave at least 8 mil trace/space and use microvia-in-pad if using a high-density interconnect (HDI) stack-up. JTAG/BDM signals (TMS, TCK, TDI, TDO, TRST, BKPT, DSCLK, DSEI/DSO) should be guarded with ground traces to prevent inadvertent debug-mode entry in noisy industrial environments.
Compliance Information
RoHS/REACH compliance not explicitly stated in the verified web data for the MC68HC16Z1CPV16 industrial variant; the part is NRND and pre-dates widespread RoHS documentation in some listings. AEC-Q100 is not qualified - this is an industrial-grade MCU, not an automotive-qualified variant.
