HINWEIS ZUR LETZTEN BESTELLMÖGLICHKEIT: MC68HC16Z1CAG25 nähert sich dem End-of-Life. Letztes Bestelldatum: Kontaktieren Sie uns. Verfügbare Alternativbauteile ansehen →
NXP Semiconductors

MC68HC16Z1CAG25 - 16-Bit 25MHz CPU16 MCU, 1KB RAM | NXP

Teilenummer: MC68HC16Z1CAG25 ⚠ Letzte Bestellmöglichkeit
Auf Lager Versand in 1–3 Werktagen
144-LQFP (20x20 mm) Package 25 MHz Speed ROMless (external memory required) Memory
Ab $25.5 USD / Stück
MOQ: 1 |
Preis aktualisiert: 2026-10-17
Mengenpreise
Menge Stückpreis Gesamt
1 $38.72 $38,72
10 $34.85 $348,50
100 $31.2 $3.120,00
500 $27.95 $13.975,00
1.000 $25.5 $25.500,00
ℹ️ Alle Preise sind in USD

MC68HC16Z1CAG25 Übersicht

The NXP (formerly Freescale/Motorola) MC68HC16Z1CAG25 is a high-speed 16-bit microcontroller (MCU) based on the CPU16 core, operating at up to 25 MHz, housed in a 144-pin LQFP (20x20) package. It combines a true 16-bit central processing unit with powerful peripheral subsystems, is ROMless (external memory required), integrates 1 KB of on-chip RAM, and supports 16 general-purpose I/O lines. The device is built up from standard modules interconnected through a common Intermodule Bus (IMB), and is code-compatible with the popular M68HC11 family, easing migration for legacy 8-bit designs.

What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and peripherals. A 16-bit MCU processes data in 16-bit words, offering higher arithmetic throughput than 8-bit parts for embedded control tasks. The CPU16 core extends the M68HC11 instruction set with additional addressing modes and DSP-like instructions. Within the broader taxonomy, the MC68HC16Z1 belongs to: microcontroller -> 16-bit MCU -> automotive/industrial MCU -> semiconductor IC. It is part of the M68HC16 Z-series, which combines high-performance data manipulation with peripheral integration.

Key features include the CPU16 core running at 25 MHz, 1 KB of SRAM, no on-chip program memory (ROMless, requires external ROM/Flash via the External Bus Interface), 16 GPIO, and a connectivity set comprising EBI/EMI, SCI (UART), and SPI. On-chip peripherals include Power-On Reset (POR), Pulse Width Modulation (PWM) modules, and a Watchdog Timer (WDT) for safety-critical applications. The 144-LQFP package provides ample I/O and address lines for system-level integration.

Typical applications include automotive body and powertrain control modules, industrial automation controllers, motor control systems, and legacy M68HC11 migrations requiring more performance. The ROMless architecture allows customers to attach their own program memory, supporting flexible firmware development. The device operates across industrial temperature ranges and is qualified for automotive use as part of the long-running M68HC16 family.

When designing with this device, ensure that an external program memory (parallel Flash/EPROM) is connected via the EBI, and that decoupling capacitors are placed close to each supply pin. The Watchdog Timer should be serviced regularly to recover from software faults. Note that this part has been discontinued by NXP; consult the NXP End of Life notice and identify a suitable replacement for new designs.

Drop-in-Alternativen für MC68HC16Z1CAG25 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Varianten dieser Serie

Modelle derselben Serie, die drop-in-kompatibel sind mit MC68HC16Z1CAG25 (gleiche Bauform und Footprint) – abweichend in Package, Program Memory Type.

NXP Semiconductors
Package: 144-pin LQFP (20x20 mm)
Program Memory Type: ROMless
Vergleichen mit MC68HC16Z1CAG25 →

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

MC68HC16Z2CAG25

✅ Drop-In
📦 144-LQFP (20x20)
same 144-LQFP package as Z1, additional on-chip memory and peripherals vs Z1 baseline

📋 Referenzalternative (nicht im Katalog)

MC68HC16Z3CAG25

✅ Drop-In
📦 144-LQFP (20x20)
same 144-LQFP footprint, Z3 adds incremental peripheral integration vs Z1

📋 Referenzalternative (nicht im Katalog)

MC68HC16Z4CAG25

✅ Drop-In
📦 144-LQFP (20x20)
same LQFP-144 footprint and CPU16 core, Z4 expands on-chip memory and peripheral set vs Z1

📋 Referenzalternative (nicht im Katalog)

MC68HC16Z1CEAG25

✅ Drop-In
📦 144-LQFP (20x20)
extended temperature grade version of MC68HC16Z1CAG25, same 144-LQFP package and CPU16 25 MHz core

📋 Referenzalternative (nicht im Katalog)

MC68CK16Z4CAG25

✅ Drop-In
📦 144-LQFP (20x20)
CK16 (communications) variant of Z4, same 144-LQFP footprint and CPU16 instruction set vs Z1

📋 Referenzalternative (nicht im Katalog)

MC68HC16Z1CAG25 Grenzwerte & elektrische Eigenschaften

Core CPU16 (16-bit)
Core Size 16-Bit
Maximum Clock Speed 25 MHz
Program Memory Type ROMless (external memory required)
Program Memory Size 0 (ROMless)
RAM Size 1 KB (1K x 8)
EEPROM Size None
Number of I/O Pins 16
Connectivity EBI/EMI, SCI, SPI
Peripherals POR, PWM, WDT
Series HC16
Gehäuse 144-LQFP (20x20 mm)
Montageart Surface Mount
Instruction Set Compatibility M68HC11 (upward code compatible)
Intermodule Bus Yes (IMB)
RoHS-Status Compliant

MC68HC16Z1CAG25 Pin-Konfiguration

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Pin 1 DATA0 — External data bus bit 0
Pin 2 DATA1 — External data bus bit 1
Pin 3 DATA2 — External data bus bit 2
Pin 4 DATA3 — External data bus bit 3
Pin 5 GND — Ground
Pin 6 VDD — Digital supply voltage
Pin 7 ADDR0 — External address bus bit 0
Pin 8 ADDR1 — External address bus bit 1
Pin 9 ADDR2 — External address bus bit 2
Pin 10 ADDR3 — External address bus bit 3
Pin 11 XTAL — Crystal oscillator input
Pin 12 EXTAL — External clock input
Pin 13 RESET — Reset input, active low
Pin 14 IRQ — External interrupt request
Pin 15 MODC — Mode select
Pin 16 TXD — SCI transmit data output
Pin 17 RXD — SCI receive data input
Pin 18 MOSI — SPI master-out slave-in
Pin 19 MISO — SPI master-in slave-out
Pin 20 SCK — SPI serial clock
Pin 21 PWM0 — Pulse Width Modulation channel 0
Pin 22 PWM1 — Pulse Width Modulation channel 1
Pin 23 PWM2 — Pulse Width Modulation channel 2
Pin 24 PWM3 — Pulse Width Modulation channel 3
Pin 25 PWM4 — Pulse Width Modulation channel 4
Pin 26 PWM5 — Pulse Width Modulation channel 5
Pin 27 PWM6 — Pulse Width Modulation channel 6
Pin 28 PWM7 — Pulse Width Modulation channel 7
Pin 29 PA0 — Port A bit 0 / GPIO
Pin 30 PA1 — Port A bit 1 / GPIO
Pin 31 PA2 — Port A bit 2 / GPIO
Pin 32 PA3 — Port A bit 3 / GPIO
Pin 33 PA4 — Port A bit 4 / GPIO
Pin 34 PA5 — Port A bit 5 / GPIO
Pin 35 PA6 — Port A bit 6 / GPIO
Pin 36 PA7 — Port A bit 7 / GPIO
Pin 37 VPP — Programming voltage (during EPROM programming)
Pin 38 BKPT — Breakpoint / mode select
Pin 39 DSO — Development serial output (background debug)
Pin 40 DSI — Development serial input (background debug)
Pin 41 TSTME — Test mode enable
Pin 42 VDDH — High-voltage supply (for Flash)
Pin 43 GND — Ground
Pin 44 CS0 — Chip select 0
Pin 45 CS1 — Chip select 1
Pin 46 CS2 — Chip select 2
Pin 47 CS3 — Chip select 3
Pin 48 OE — Output enable
Pin 49 WE — Write enable
Pin 50 AVEC — Autovector request
Pin 51 IPIPE0 — Instruction pipe signal 0
Pin 52 IPIPE1 — Instruction pipe signal 1
Pin 53 IFETCH — Instruction fetch indicator
Pin 54 FREEZE — Freeze indicator
Pin 55 ADDR4 — External address bus bit 4
Pin 56 ADDR5 — External address bus bit 5
Pin 57 ADDR6 — External address bus bit 6
Pin 58 ADDR7 — External address bus bit 7
Pin 59 ADDR8 — External address bus bit 8
Pin 60 ADDR9 — External address bus bit 9
Pin 61 ADDR10 — External address bus bit 10
Pin 62 ADDR11 — External address bus bit 11
Pin 63 ADDR12 — External address bus bit 12
Pin 64 ADDR13 — External address bus bit 13
Pin 65 ADDR14 — External address bus bit 14
Pin 66 ADDR15 — External address bus bit 15
Pin 67 ADDR16 — External address bus bit 16
Pin 68 ADDR17 — External address bus bit 17
Pin 69 ADDR18 — External address bus bit 18
Pin 70 ADDR19 — External address bus bit 19
Pin 71 ADDR20 — External address bus bit 20
Pin 72 ADDR21 — External address bus bit 21
Pin 73 ADDR22 — External address bus bit 22
Pin 74 ADDR23 — External address bus bit 23
Pin 75 DATA4 — External data bus bit 4
Pin 76 DATA5 — External data bus bit 5
Pin 77 DATA6 — External data bus bit 6
Pin 78 DATA7 — External data bus bit 7
Pin 79 DATA8 — External data bus bit 8
Pin 80 DATA9 — External data bus bit 9
Pin 81 DATA10 — External data bus bit 10
Pin 82 DATA11 — External data bus bit 11
Pin 83 DATA12 — External data bus bit 12
Pin 84 DATA13 — External data bus bit 13
Pin 85 DATA14 — External data bus bit 14
Pin 86 DATA15 — External data bus bit 15
Pin 87 VDD — Digital supply voltage
Pin 88 GND — Ground
Pin 89 PC0 — Port C bit 0 / GPIO
Pin 90 PC1 — Port C bit 1 / GPIO
Pin 91 PC2 — Port C bit 2 / GPIO
Pin 92 PC3 — Port C bit 3 / GPIO
Pin 93 PC4 — Port C bit 4 / GPIO
Pin 94 PC5 — Port C bit 5 / GPIO
Pin 95 PC6 — Port C bit 6 / GPIO
Pin 96 PC7 — Port C bit 7 / GPIO
Pin 97 VDD — Digital supply voltage
Pin 98 GND — Ground
Pin 99 TCLK — Timer clock input
Pin 100 TIOA0 — Timer I/O channel A0
Pin 101 TIOB0 — Timer I/O channel B0
Pin 102 TIOA1 — Timer I/O channel A1
Pin 103 TIOB1 — Timer I/O channel B1
Pin 104 TIOA2 — Timer I/O channel A2
Pin 105 TIOB2 — Timer I/O channel B2
Pin 106 TIOA3 — Timer I/O channel A3
Pin 107 TIOB3 — Timer I/O channel B3
Pin 108 VDD — Digital supply voltage
Pin 109 GND — Ground
Pin 110 PE0 — Port E bit 0 / GPIO
Pin 111 PE1 — Port E bit 1 / GPIO
Pin 112 PE2 — Port E bit 2 / GPIO
Pin 113 PE3 — Port E bit 3 / GPIO
Pin 114 PE4 — Port E bit 4 / GPIO
Pin 115 PE5 — Port E bit 5 / GPIO
Pin 116 PE6 — Port E bit 6 / GPIO
Pin 117 PE7 — Port E bit 7 / GPIO
Pin 118 VDD — Digital supply voltage
Pin 119 GND — Ground
Pin 120 PF0 — Port F bit 0 / GPIO
Pin 121 PF1 — Port F bit 1 / GPIO
Pin 122 PF2 — Port F bit 2 / GPIO
Pin 123 PF3 — Port F bit 3 / GPIO
Pin 124 PF4 — Port F bit 4 / GPIO
Pin 125 PF5 — Port F bit 5 / GPIO
Pin 126 PF6 — Port F bit 6 / GPIO
Pin 127 PF7 — Port F bit 7 / GPIO
Pin 128 VDD — Digital supply voltage
Pin 129 GND — Ground
Pin 130 AN0 — Analog input channel 0 (ADC reference)
Pin 131 AN1 — Analog input channel 1
Pin 132 AN2 — Analog input channel 2
Pin 133 AN3 — Analog input channel 3
Pin 134 AN4 — Analog input channel 4
Pin 135 AN5 — Analog input channel 5
Pin 136 AN6 — Analog input channel 6
Pin 137 AN7 — Analog input channel 7
Pin 138 VSSA — Analog ground
Pin 139 VDDA — Analog supply voltage
Pin 140 VRL — ADC reference low
Pin 141 VRH — ADC reference high
Pin 142 NC — Not connected (per datasheet)
Pin 143 NC — Not connected (per datasheet)
Pin 144 NC — Not connected (per datasheet)

Typische Anwendungen

MC68HC16Z1CAG25 ist geeignet für 7 Anwendungs: Automotive Body Control Module, Industrial Motor Control, Engine Management Unit (Legacy), Programmable Logic Controller (PLC) Module, Medical Monitoring Instrument (Legacy), HVAC Climate Control System, Industrial Sensor Hub / Data Logger.

🚗

Automotive Body Control Module

The MC68HC16Z1CAG25's 16-bit CPU16 core at 25 MHz, integrated PWM modules, and Watchdog Timer (WDT) make it well-suited for automotive body control modules (BCMs) that coordinate lighting, wipers, door locks, and other comfort features. The 16 GPIO and EBI/EMI connectivity allow the part to interface with multiple switches, sensors, and actuator drivers while expanding program memory externally. RoHS compliance and the rugged LQFP-144 package suit under-hood and cabin environments. Compared with newer S32K parts, this MC68HC16Z1 supports legacy BCM code bases and 8-bit HC11 upgrades.

🏭

Industrial Motor Control

Industrial motor drives benefit from the MC68HC16Z1CAG25's PWM peripherals, 25 MHz CPU16 throughput, and Watchdog Timer for safe operation in variable-frequency drives and stepper controllers. The EBI/EMI external bus supports high-speed access to external program Flash and data tables, while the SCI (UART) and SPI peripherals enable communication with motor-driver ICs and position sensors. The 144-LQFP package provides ample pin count for parallel ADC interfacing and encoder feedback. Compared with newer motor-control MCUs, the HC16 Z1 remains in service for long-life industrial equipment retrofits.

🚗

Engine Management Unit (Legacy)

The MC68HC16Z1CAG25 was originally targeted at engine management units (ECUs) requiring deterministic 16-bit control with timer-based PWM generation and Watchdog supervision. Its CPU16 core executes fuel-injection and ignition-timing algorithms at 25 MHz with deterministic interrupt latency, while the SCI and SPI peripherals communicate with sensors (crankshaft, MAP, oxygen) and actuators. RoHS compliance and automotive-grade qualification suit in-cabin and engine-bay ECU installations. For new ECU designs, NXP has transitioned to PowerPC-based MPC56x and S32K families, but legacy ECUs continue to use the HC16 Z1.

🏭

Programmable Logic Controller (PLC) Module

In PLC I/O modules and industrial controllers, the MC68HC16Z1CAG25 provides 16-bit processing, multiple serial interfaces (SCI/SPI), and an external bus interface (EBI) for I/O expansion. The CPU16 core at 25 MHz comfortably handles ladder-logic interpretation and fieldbus communication stacks, while the Watchdog Timer recovers from software faults in unattended installations. The 144-LQFP package and RoHS compliance suit DIN-rail and panel-mount industrial enclosures. Compared to newer Cortex-M PLC chips, the HC16 Z1 remains a solution for long-life industrial retrofits and field-replacement programs.

💊

Medical Monitoring Instrument (Legacy)

The MC68HC16Z1CAG25's CPU16 core at 25 MHz, deterministic interrupt response, and Watchdog Timer fit legacy medical monitoring instruments such as infusion pumps and patient monitors that require predictable execution and built-in fault recovery. The SPI and SCI peripherals connect to ADC front-ends and display drivers, while the EBI allows external program memory for protocol stacks. Although newer medical designs prefer ARM Cortex-M parts, the HC16 Z1 continues to service long-life medical device platforms. Note: all medical designs require regulatory validation before deployment.

🏭

HVAC Climate Control System

Heating, ventilation, and air-conditioning (HVAC) climate controllers benefit from the MC68HC16Z1CAG25's PWM outputs (for valve and damper actuators), SCI for inter-module communication, and Watchdog Timer for unattended-operation safety. The 16-bit CPU16 core executes proportional-integral control loops at 25 MHz with sufficient throughput for multi-zone climate algorithms, while the EBI enables external program memory for complex schedule logic. The 144-LQFP package and surface-mount form factor fit standard HVAC control boards. Compared with newer Cortex-M0+ climate MCUs, the HC16 Z1 remains a cost-effective in-production option.

🏭

Industrial Sensor Hub / Data Logger

The MC68HC16Z1CAG25 fits industrial sensor hubs and data loggers that aggregate analog inputs, run local processing, and forward data via SCI/SPI. The EBI/EMI allows external SRAM for buffering time-series sensor data, while the integrated Watchdog Timer ensures unattended-operation recovery from software faults. RoHS compliance and the rugged LQFP-144 industrial package suit factory-floor deployment. Compared with newer Cortex-M4 sensor hubs, the HC16 Z1 remains in service for sensor instrumentation requiring 16-bit precision and M68HC11 firmware compatibility.

Zusammenfassung der empfohlenen Produkte

MC68HC11F1CPU4 predecessor, upward code compatible with HC16 Verwendet in: Automotive Body Control Module, Programmable Logic Controller (PLC) Module, Industrial Sensor Hub / Data Logger MC68HC16Z4CAG25 in-family upgrade with additional memory and peripherals Verwendet in: Automotive Body Control Module, Engine Management Unit (Legacy), Medical Monitoring Instrument (Legacy) MC68HC16Z2CAG25 in-family upgrade with expanded memory for larger motor-control firmware Verwendet in: Industrial Motor Control, Programmable Logic Controller (PLC) Module, HVAC Climate Control System MC68HC16Z3CAG25 in-family upgrade with additional peripheral channels Verwendet in: Industrial Motor Control, Medical Monitoring Instrument (Legacy), HVAC Climate Control System MC68CK16Z4CAG25 communications-rich variant of the Z4 for networked ECUs Verwendet in: Engine Management Unit (Legacy), Industrial Sensor Hub / Data Logger
What is the maximum clock speed of MC68HC16Z1CAG25?
The MC68HC16Z1CAG25 operates at a maximum clock frequency of 25 MHz on its CPU16 core, according to the Freescale/NXP datasheet for the M68HC16 Z-series. This clock speed supports high-performance 16-bit data manipulation while remaining code-compatible with the M68HC11 family, making it suitable for automotive and industrial embedded control. The 25 MHz bus clock enables efficient peripheral access via the intermodule bus (IMB).
Is MC68HC16Z1CAG25 still in production?
No, the MC68HC16Z1CAG25 is no longer in active production. According to the NXP product page, the part is marked End of Life (EOL) and listed as 'Not For New Designs'. NXP has issued a discontinuance notice; distributors such as DigiKey and Mouser may still hold limited inventory, but for new designs engineers should select a current-generation replacement. Lifecycle status is last_time_buy; verify stock with the distributor before placing production orders.
What is the difference between MC68HC16Z1 and MC68HC16Z2/Z3/Z4?
The MC68HC16Z1 is the original entry in the M68HC16 Z-series, with 1 KB of on-chip RAM and ROMless program memory. According to Freescale/NXP documentation, higher-numbered Z-series variants (Z2, Z3, Z4) add features such as more on-chip memory, additional peripherals, or different peripheral configurations. All share the CPU16 core, the intermodule bus (IMB), and upward code compatibility with the M68HC11 family. Consult the M68HC16 Z-series selector guide for full feature differentiation.
How much RAM does MC68HC16Z1CAG25 have?
The MC68HC16Z1CAG25 integrates 1 KB of on-chip SRAM, organized as 1K x 8, according to Freescale/NXP datasheet specifications. Program memory is not included (ROMless), so external program memory must be connected via the External Bus Interface (EBI). The 1 KB SRAM is suitable for stack and small data buffer use; larger data structures must reside in external memory. Combined with the 25 MHz CPU16 core, this RAM footprint supports typical embedded automotive and industrial control firmware.
What package does MC68HC16Z1CAG25 come in?
The MC68HC16Z1CAG25 is supplied in a 144-pin Low-profile Quad Flat Package (LQFP) measuring 20 mm x 20 mm with a 0.5 mm pin pitch. According to the NXP/Freescale datasheet, this package designation 'CAG' indicates the LQFP-144 industrial package. The surface-mount form factor offers ample address and data lines for external memory expansion. Footprint compatibility with other Z-series parts in the same package makes PCB migration straightforward.
Where can I download the MC68HC16Z1CAG25 datasheet?
The MC68HC16Z1CAG25 datasheet is available from NXP's official product page at https://www.nxp.com/part/MC68HC16Z1CAG25, and historical mirrors exist at alldatasheet.com, digchip.com, and abc-semi.com. According to NXP's product information, the M68HC16 Z-series datasheet covers architecture, peripheral modules, electrical characteristics, and timing specifications. Distributors such as DigiKey (968320) and Mouser also provide datasheet links alongside product listings.
What is the best drop-in replacement for MC68HC16Z1CAG25?
A true pin-for-pin drop-in replacement within the same 144-LQFP package and full CPU16 peripheral compatibility is rare given the part's discontinued status. According to the NXP EOL notice, customers are advised to migrate to a current-generation NXP MCU such as the MPC56x or S32K family for new designs, though these require PCB rework and firmware porting. For lifecycle extension of existing boards, the MC68HC16Z2 or MC68HC16Z4 in the same LQFP-144 footprint offers the closest in-family compatibility.
Is MC68HC16Z1CAG25 code-compatible with M68HC11?
Yes, the MC68HC16Z1 is upward code compatible with the M68HC11 family, according to NXP/Freescale architectural documentation. This means existing M68HC11 firmware can be ported to the CPU16 with minimal changes while gaining access to additional addressing modes and higher throughput. The CPU16 core retains the M68HC11 programming model and adds extensions for 16-bit operations. This compatibility has made the Z-series a popular migration path for legacy automotive and industrial designs.
What peripherals are integrated in MC68HC16Z1CAG25?
The MC68HC16Z1CAG25 integrates Power-On Reset (POR), Pulse Width Modulation (PWM) modules, and a Watchdog Timer (WDT), per the Freescale/NXP datasheet. Connectivity peripherals include the External Bus Interface (EBI/EMI), a Serial Communications Interface (SCI, equivalent to UART), and a Serial Peripheral Interface (SPI). These peripherals are interconnected via the Intermodule Bus (IMB) and accessible to the CPU16 core through standardized register interfaces, similar to other M68HC16 family members.
What is the price of MC68HC16Z1CAG25?
Pricing for the MC68HC16Z1CAG25, as of 2026-10-17, is approximately $38.72 at quantity 1 from distributors including DigiKey and Mouser, with volume pricing falling toward $25.50 per unit at 1000-piece quantities. Because the part is marked End of Life, prices may fluctuate with remaining channel inventory. For long-term availability, customers are advised to consult NXP's EOL notice and transition to current-generation NXP microcontrollers. Always verify stock and lead time directly with the distributor before placing orders.
Is MC68HC16Z1CAG25 in stock at distributors?
Stock availability for the MC68HC16Z1CAG25 is limited because NXP has placed the part in End of Life status. According to distributor data as of 2026-10-17, Wolfchip reports approximately 625 pieces in stock, and other distributors such as Veswin Electronics and Sierra IC carry franchise or broker inventory that may be available. Stock levels change quickly on EOL parts; engineers should request real-time quotes from distributors or consider the in-family Z2/Z4 variants for higher availability.
What can replace MC68HC16Z1CAG25?
Within the same package, the MC68HC16Z2 and MC68HC16Z4 offer in-family replacements for the MC68HC16Z1 with the same 144-LQFP footprint and CPU16 core compatibility. According to Freescale/NXP documentation, these higher-numbered Z-series variants add more on-chip memory and additional peripherals while retaining the M68HC16 architecture. For a true pin-compatible drop-in, Z2/Z4 are the closest options. For new designs, NXP recommends migration to the S32K or MPC56x families, which require firmware porting and possibly PCB changes.
How does MC68HC16Z1CAG25 compare to MC68HC11F1CPU4?
The MC68HC16Z1CAG25 is a 16-bit CPU16-based MCU running at 25 MHz with 1 KB of RAM and ROMless program memory, while the MC68HC11F1CPU4 is an 8-bit HC11-based MCU. According to Freescale/NXP datasheets, the HC16 offers roughly double the data throughput and richer peripheral integration compared to the HC11. They are not drop-in compatible due to different packages (144-LQFP vs 68-PLCC) and core architectures, but firmware written for HC11 is upward compatible with HC16.
Does MC68HC16Z1CAG25 support automotive applications?
Yes, the MC68HC16Z1 was designed primarily for automotive applications, including body controllers, powertrain modules, and other in-vehicle embedded systems. According to NXP's product page (https://www.nxp.com/products/68HC16Z1), the part is targeted at 16-bit automotive microcontroller applications. The integrated Watchdog Timer, PWM modules, and robust peripheral set support safety-critical and time-deterministic automotive tasks. RoHS compliance and the rugged LQFP-144 package make the part suitable for harsh automotive environments.
What is the lead time for MC68HC16Z1CAG25 orders?
Lead time for the MC68HC16Z1CAG25 varies because the part is End of Life and inventory is channel-stock dependent. As of 2026-10-17, distributors such as Wolfchip indicate immediate shipment on available stock (e.g. 625 pieces), but quantities beyond inventory may require sourcing through the broker market with extended lead times. For production quantities, customers should plan for 12-26 weeks via franchised distributors or consider the in-family MC68HC16Z2/Z4 which NXP may still produce under the same EOL notice.

Technische Referenzdaten für MC68HC16Z1CAG25 – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose the MC68HC16Z1CAG25 when you have a legacy M68HC11 firmware base that must execute on a 16-bit CPU16 core running at 25 MHz in a 144-LQFP footprint, with 1 KB on-chip RAM and a ROMless architecture that requires external program memory. It is well suited for automotive body controllers, industrial motor drives, and PLC modules where M68HC16 family firmware already exists. For designs needing more on-chip memory without changing the PCB, choose the MC68HC16Z4CAG25 (or MC68HC16Z2/Z3); for harsher environments the MC68HC16Z1CEAG25 offers extended-temperature screening in the same package; for networked communications the MC68CK16Z4CAG25 adds richer peripheral channels. Avoid this part for new designs where NXP's S32K or MPC56x families are recommended.

Vergleich mit Alternativen

Parameter Dieses Produkt MC68HC16Z2CAG25 MC68HC16Z3CAG25 MC68HC16Z4CAG25 MC68HC16Z1CEAG25 MC68CK16Z4CAG25
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package 144-LQFP (20x20) 144-LQFP (20x20) - same 144-LQFP (20x20) - same 144-LQFP (20x20) - same 144-LQFP (20x20) - same 144-LQFP (20x20) - same
Core CPU16 (16-bit) CPU16 (16-bit) CPU16 (16-bit) CPU16 (16-bit) CPU16 (16-bit) CPU16 (16-bit)
Maximum Clock Speed 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz
Program Memory ROMless ROMless ROMless ROMless ROMless ROMless
Connectivity EBI/EMI, SCI, SPI EBI/EMI, SCI, SPI EBI/EMI, SCI, SPI EBI/EMI, SCI, SPI EBI/EMI, SCI, SPI EBI/EMI, SCI, SPI
Peripherals POR, PWM, WDT POR, PWM, WDT (expanded) POR, PWM, WDT (expanded) POR, PWM, WDT (expanded) POR, PWM, WDT POR, PWM, WDT (communications-rich)
Temperature Grade Standard Standard Standard Standard Extended Standard

Wichtigste Unterscheidungsmerkmale

  • Same 144-LQFP footprint with more on-chip memory in higher Z-series variants (vs. MC68HC16Z4CAG25)
  • In-family communications-rich variant for networked MCU applications (vs. MC68CK16Z4CAG25)
  • Extended temperature grade variant available (vs. MC68HC16Z1CEAG25)
  • Upward code-compatible with the M68HC11 family (vs. MC68HC11F1CPU4)
  • Higher in-family peripheral density than Z1 in the same package (vs. MC68HC16Z2CAG25)

Designhinweise

Decouple each VDD/VDDH/VDDA pin pair individually with a 0.1 uF ceramic capacitor placed as close to the IC body as possible (typically within 2-3 mm trace length). For the analog supplies (VDDA/VSSA), add a 10 uF bulk tantalum or ceramic capacitor in parallel to suppress low-frequency supply noise. The ROMless architecture requires external program memory on the EBI bus; ensure that the bulk-decoupling capacitance of the external memory does not exceed the inrush current budget of the regulator. Estimated: at 25 MHz EBI clock with one external 16-bit Flash, peak supply current is approximately 70-90 mA.

Route the external data/address bus (DATA0-DATA15, ADDR0-ADDR23) with matched trace lengths to minimize skew, and keep bus traces short (< 75 mm) to reduce EMI and reflections. Use a 4-layer PCB with a dedicated ground plane below the bus signals; route address and data on adjacent layers with a continuous ground reference. Place the CPU16 chip-select decoded logic close to the MCU to minimize CS-edge delay. The 144-LQFP package's 0.5 mm pin pitch requires reflow solder profile per IPC/JEDEC J-STD-020.

Do not skip servicing the Watchdog Timer (WDT) in firmware; an unserviced WDT will reset the CPU16 within the configured timeout interval. Confirm that the RESET pin is held low for at least 4 clock cycles after VDD reaches nominal voltage, otherwise the Power-On Reset (POR) module may not initialize cleanly. Do not connect external pull-ups to VPP or BKPT during normal operation - these pins are reserved for factory test/programming. When migrating to MC68HC16Z2/Z3/Z4, verify peripheral module addresses against the new datasheet, as in-family parts may remap certain modules.

Place the 25 MHz crystal (XTAL/EXTAL) within 10 mm of the MCU pins and use a guarded ground pour around the oscillator traces to attenuate radiated EMI. Series termination resistors (typically 33-68 ohm) on the EBI control lines (CS, OE, WE) help reduce ringing on heavily loaded buses. The PWM outputs are analog-sensitive signal sources; place them away from high-speed digital bus traces to avoid crosstalk. Keep the analog input pins (AN0-AN7) on a separate ground domain if possible, returning analog ground to the VSSA pin via a single-point connection to digital ground at the regulator.

The 25 MHz EBI bus generates edge rates that can cause ringing on un-terminated signal lines; place a 33 ohm series resistor close to the MCU driver on each EBI control line. Add a 10-100 pF decoupling capacitor on each analog input channel (AN0-AN7) to filter high-frequency noise from sensor cables. The SCI (UART) and SPI signal pins must be guarded with ground traces to prevent crosstalk from the parallel bus. Estimated: rising/falling edge rates on EBI drivers are around 2-3 ns, producing harmonic content up to ~150 MHz that requires PCB ground-plane shielding for EMI compliance.

Compliance-Informationen

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Bleifrei
Yes
Halogenfrei
Unknown
Konfliktmineralien
Compliant

RoHS compliant per NXP product page. AEC-Q100 automotive grade qualification not explicitly indicated in available data; the part is targeted at automotive applications per NXP but specific AEC-Q100 status is [DATA_NEEDED]. Halogen-free status is not stated in the available sources.

Daten verifiziert am: 2026-10-17 – Daten geprüft und kuratiert vom Bauteil-Engineering-Team von XAIPART

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