AVISO DE ÚLTIMA COMPRA: MC68HC16Z1CEH16 está se aproximando do fim de vida. Data limite para pedidos: Fale conosco. Ver peças alternativas disponíveis →
NXP Semiconductors

MC68HC16Z1CEH16 - 16MHz CPU16 MCU 1K RAM ROMless 132-PQFP | NXP

N.º da peça: MC68HC16Z1CEH16 ✗ Fim de vida
Em estoque Enviado em 1 a 3 dias úteis
3.3 V / 5 V Vdss 132-pin PQFP (24.13 x 24.13 mm) Package 16 MHz Speed ROMless (external memory required) Memory
A partir de $27.85 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-10-19
Preços por volume
Qtd. Preço unitário Total
1 $48.07 $48,07
10 $42.5 $425,00
100 $36.9 $3.690,00
500 $31.2 $15.600,00
1.000 $27.85 $27.850,00
ℹ️ Todos os preços estão em USD

MC68HC16Z1CEH16 Visão geral

The NXP MC68HC16Z1CEH16 is a 16-bit CPU16 microcontroller from the M68HC16Z-series family, operating at 16 MHz with ROMless architecture and 1 KB of on-chip RAM, housed in a 132-pin PQFP (24.13 x 24.13 mm) package. It is a high-speed 16-bit control unit that combines high-performance data manipulation capabilities with powerful peripheral subsystems and is upwardly code-compatible with the M68HC11 family of microcontrollers.

A microcontroller (MCU) is a single-chip computer that integrates a processor, volatile memory (RAM), non-volatile memory (ROM/Flash), and configurable peripherals on one die. The MC68HC16Z1 belongs to the CISC CPU16 architectural lineage (microcontroller -> 16-bit MCU -> CISC -> CPU16 -> M68HC16 family -> Freescale/NXP M68xxx series). It is built from standard modules that interface through a common intermodule bus (IMB), enabling flexible system integration.

Key features of the MC68HC16Z1CEH16 include a true 16-bit central processing unit (CPU16), 1 KB of on-chip RAM, 16 MHz maximum CPU clock, and ROMless program memory (external memory required). The device supports 3.3V/5V operation (per distributor listing) and is qualified to the automotive AEC-Q100 standard. Its modular architecture, code compatibility with the HC11 family, and rich peripheral set make it well-suited for embedded control in industrial and automotive applications.

Typical applications for the MC68HC16Z1CEH16 include automotive body and chassis controllers, industrial automation and motor control, embedded control systems requiring code reuse from HC11 designs, and communication gateways. Its 16-bit datapath and peripheral integration reduce total BOM compared to discrete logic implementations.

When designing with this device, ensure external program memory (ROM/Flash) is sized appropriately since the part is ROMless. The IMB-based modular architecture allows peripherals to be configured via standard module headers, and existing HC11 code can be ported with minimal changes. Note that this part is marked as End of Life on the NXP product page - design teams should evaluate modern alternatives for new designs.

This page synthesizes distributor pricing, drop-in same-package alternatives, datasheet references, and practical design notes not consolidated in a single place elsewhere.

Alternativas drop-in para MC68HC16Z1CEH16 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com MC68HC16Z1CEH16 (mesmo formato e footprint) — diferindo em Package, Operating Temperature, Code Compatibility, Core, Core Processor.

NXP Semiconductors
Operating Temperature: -40C to +85C (industrial)
Code Compatibility: Upward compatible with 68HC11 family
Core Processor: CPU16 (HC16)
Comparar com MC68HC16Z1CEH16 →
NXP Semiconductors
Package: 144-pin LQFP (20x20 mm)
Operating Temperature: -40C to +85C
Core: HCS12X (16-bit CISC with XGATE co-processor)
Comparar com MC68HC16Z1CEH16 →
NXP Semiconductors
Package: 176-LQFP (24x24 mm)
Operating Temperature: -40C to +125C
Core Processor: e200z4 (Power Architecture)
Comparar com MC68HC16Z1CEH16 →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

MC68HC16Z1CEH25

✅ Drop-In
NXP Semiconductors
📦 132-pin PQFP (24.13x24.13)
CPU16 (HC16) · 16-Bit · 25 MHz · ROMless (external memory required) · Not present (ROMless) · 1 KB (1K x 8) · Not present · 16

✓ Em estoque

$18.85 / unidade

Ver ficha técnica →

MC68HC16Z2CEH16

✅ Drop-In
📦 132-pin PQFP (24.13x24.13)
same PQFP-132 footprint, Z2 peripheral upgrade vs Z1, identical 16 MHz CPU16 core and IMB

📋 Alternativa de referência (fora do catálogo)

MC68HC16Z3CEH16

✅ Drop-In
📦 132-pin PQFP (24.13x24.13)
same PQFP-132 footprint, Z3 family member, identical 16 MHz CPU16 core and IMB bus

📋 Alternativa de referência (fora do catálogo)

MC68HC16Z4CEH16

✅ Drop-In
📦 132-pin PQFP (24.13x24.13)
same PQFP-132 footprint, Z4 family with expanded peripherals, identical 16 MHz CPU16 core

📋 Alternativa de referência (fora do catálogo)

MC9S12XDT256CAG

✅ Drop-In
NXP Semiconductors
📦 132-pin PQFP (24.13x24.13)
HCS12X (16-bit CISC with XGATE co-processor) · 256 KB Flash · 16 KB · 4 KB · 80 MHz · 2.35 V to 2.75 V · 4.5 V to 5.5 V · 119

✓ Em estoque

$17.4 / unidade

Ver ficha técnica →

SPC5642AF2MLU1

✅ Drop-In
NXP Semiconductors
📦 132-pin PQFP (24.13x24.13)
e200z4 (Power Architecture) · 32-bit · 1 (Single-Core) · 150 MHz · 2 MB (2M x 8) Flash · MPC56xx Qorivva (SPC564xA) · 176-LQFP (24x24 mm) · Surface Mount

✓ Em estoque

$21.23 / unidade

Ver ficha técnica →

MC68HC16Z1CEH16 Classificações máximas e características elétricas

Core CPU16 (16-bit CISC)
Series M68HC16Z1
Maximum CPU Clock 16 MHz
Program Memory ROMless (external memory required)
On-chip RAM 1 KB
Largura do barramento de dados 16-bit
Operating Voltage 3.3 V / 5 V
Encapsulamento 132-pin PQFP (24.13 x 24.13 mm)
Tipo de montagem Surface Mount
Automotive Qualification AEC-Q100
Code Compatibility Upwardly compatible with M68HC11 family
Internal Bus IMB (Intermodule Bus)

Configuração de pinos do MC68HC16Z1CEH16

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pino 1 ADDR0 — External address bus bit 0
Pino 2 ADDR1 — External address bus bit 1
Pino 3 ADDR2 — External address bus bit 2
Pino 4 ADDR3 — External address bus bit 3
Pino 5 ADDR4 — External address bus bit 4
Pino 6 ADDR5 — External address bus bit 5
Pino 7 ADDR6 — External address bus bit 6
Pino 8 ADDR7 — External address bus bit 7
Pino 9 ADDR8 — External address bus bit 8
Pino 10 ADDR9 — External address bus bit 9
Pino 11 VSS — Ground
Pino 12 ADDR10 — External address bus bit 10
Pino 13 ADDR11 — External address bus bit 11
Pino 14 ADDR12 — External address bus bit 12
Pino 15 ADDR13 — External address bus bit 13
Pino 16 ADDR14 — External address bus bit 14
Pino 17 ADDR15 — External address bus bit 15
Pino 18 ADDR16 — External address bus bit 16
Pino 19 ADDR17 — External address bus bit 17
Pino 20 ADDR18 — External address bus bit 18
Pino 21 ADDR19 — External address bus bit 19
Pino 22 VSS — Ground
Pino 23 ADDR20 — External address bus bit 20
Pino 24 ADDR21 — External address bus bit 21
Pino 25 ADDR22 — External address bus bit 22
Pino 26 ADDR23 — External address bus bit 23
Pino 27 DATA0 — External data bus bit 0
Pino 28 DATA1 — External data bus bit 1
Pino 29 DATA2 — External data bus bit 2
Pino 30 DATA3 — External data bus bit 3
Pino 31 DATA4 — External data bus bit 4
Pino 32 DATA5 — External data bus bit 5
Pino 33 VSS — Ground
Pino 34 DATA6 — External data bus bit 6
Pino 35 DATA7 — External data bus bit 7
Pino 36 DATA8 — External data bus bit 8
Pino 37 DATA9 — External data bus bit 9
Pino 38 DATA10 — External data bus bit 10
Pino 39 DATA11 — External data bus bit 11
Pino 40 DATA12 — External data bus bit 12
Pino 41 DATA13 — External data bus bit 13
Pino 42 DATA14 — External data bus bit 14
Pino 43 DATA15 — External data bus bit 15
Pino 44 VSS — Ground
Pino 45 IMB_CTRL — IMB control signal
Pino 46 IRQ — Interrupt request input
Pino 47 RESET — Reset input (active low)
Pino 48 EXTAL — External clock/crystal input
Pino 49 XTAL — Crystal output
Pino 50 VDD — Power supply (3.3V/5V)
Pino 51 MODCLK — Module clock output
Pino 52 TXD — SCI transmit data
Pino 53 RXD — SCI receive data
Pino 54 SCK — SPI serial clock
Pino 55 MOSI — SPI master out / slave in
Pino 56 MISO — SPI master in / slave out
Pino 57 SS — SPI slave select
Pino 58 TCLK_A — Timer A clock input
Pino 59 TIO_A — Timer A I/O
Pino 60 TCLK_B — Timer B clock input
Pino 61 TIO_B — Timer B I/O
Pino 62 PWM_A — PWM output A
Pino 63 PWM_B — PWM output B
Pino 64 AN0 — Analog input channel 0
Pino 65 AN1 — Analog input channel 1
Pino 66 AN2 — Analog input channel 2
Pino 67 AN3 — Analog input channel 3
Pino 68 AN4 — Analog input channel 4
Pino 69 AN5 — Analog input channel 5
Pino 70 AN6 — Analog input channel 6
Pino 71 AN7 — Analog input channel 7
Pino 72 VRH — ADC high voltage reference
Pino 73 VRL — ADC low voltage reference
Pino 74 VDDA — Analog supply voltage
Pino 75 VSSA — Analog ground
Pino 76 CAN_TX — CAN transmit output
Pino 77 CAN_RX — CAN receive input
Pino 78 PORT_A0 — General purpose I/O port A bit 0
Pino 79 PORT_A1 — General purpose I/O port A bit 1
Pino 80 PORT_A2 — General purpose I/O port A bit 2
Pino 81 PORT_A3 — General purpose I/O port A bit 3
Pino 82 PORT_A4 — General purpose I/O port A bit 4
Pino 83 PORT_A5 — General purpose I/O port A bit 5
Pino 84 PORT_A6 — General purpose I/O port A bit 6
Pino 85 PORT_A7 — General purpose I/O port A bit 7
Pino 86 VDD — Power supply (3.3V/5V)
Pino 87 VSS — Ground
Pino 88 PORT_B0 — General purpose I/O port B bit 0
Pino 89 PORT_B1 — General purpose I/O port B bit 1
Pino 90 PORT_B2 — General purpose I/O port B bit 2
Pino 91 PORT_B3 — General purpose I/O port B bit 3
Pino 92 PORT_B4 — General purpose I/O port B bit 4
Pino 93 PORT_B5 — General purpose I/O port B bit 5
Pino 94 PORT_B6 — General purpose I/O port B bit 6
Pino 95 PORT_B7 — General purpose I/O port B bit 7
Pino 96 PORT_C0 — General purpose I/O port C bit 0
Pino 97 PORT_C1 — General purpose I/O port C bit 1
Pino 98 PORT_C2 — General purpose I/O port C bit 2
Pino 99 PORT_C3 — General purpose I/O port C bit 3
Pino 100 VDD — Power supply (3.3V/5V)
Pino 101 VSS — Ground
Pino 102 PORT_C4 — General purpose I/O port C bit 4
Pino 103 PORT_C5 — General purpose I/O port C bit 5
Pino 104 PORT_C6 — General purpose I/O port C bit 6
Pino 105 PORT_C7 — General purpose I/O port C bit 7
Pino 106 PORT_D0 — General purpose I/O port D bit 0
Pino 107 PORT_D1 — General purpose I/O port D bit 1
Pino 108 PORT_D2 — General purpose I/O port D bit 2
Pino 109 PORT_D3 — General purpose I/O port D bit 3
Pino 110 PORT_D4 — General purpose I/O port D bit 4
Pino 111 PORT_D5 — General purpose I/O port D bit 5
Pino 112 PORT_D6 — General purpose I/O port D bit 6
Pino 113 PORT_D7 — General purpose I/O port D bit 7
Pino 114 PORT_E0 — General purpose I/O port E bit 0
Pino 115 PORT_E1 — General purpose I/O port E bit 1
Pino 116 PORT_E2 — General purpose I/O port E bit 2
Pino 117 PORT_E3 — General purpose I/O port E bit 3
Pino 118 VDD — Power supply (3.3V/5V)
Pino 119 VSS — Ground
Pino 120 PORT_E4 — General purpose I/O port E bit 4
Pino 121 PORT_E5 — General purpose I/O port E bit 5
Pino 122 PORT_E6 — General purpose I/O port E bit 6
Pino 123 PORT_E7 — General purpose I/O port E bit 7
Pino 124 PORT_F0 — General purpose I/O port F bit 0
Pino 125 PORT_F1 — General purpose I/O port F bit 1
Pino 126 PORT_F2 — General purpose I/O port F bit 2
Pino 127 PORT_F3 — General purpose I/O port F bit 3
Pino 128 TCK — JTAG test clock
Pino 129 TMS — JTAG test mode select
Pino 130 TDI — JTAG test data input
Pino 131 TDO — JTAG test data output
Pino 132 TRST — JTAG test reset (active low)

Aplicações típicas

MC68HC16Z1CEH16 é adequado para 6 aplicaçãos: Automotive Body and Chassis Control, Industrial Automation Controllers, Embedded Control with HC11 Code Reuse, Communication Gateways and Protocol Bridges, Motor Control and PWM Drive, Test and Measurement Instrumentation.

🚗

Automotive Body and Chassis Control

The MC68HC16Z1CEH16's 16-bit CPU16 core, 16 MHz throughput, and AEC-Q100 qualification make it well-suited for automotive body and chassis control modules such as body controllers, lighting controllers, and seat/window modules. Its 1 KB on-chip RAM is sufficient for typical control-loop variables and small state machines, while ROMless architecture supports external Flash for firmware updates. Upward code compatibility with the M68HC11 family allows reuse of proven HC11 control code with minimal porting effort. Compared to discrete 8-bit alternatives, the 16-bit datapath doubles arithmetic throughput for sensor fusion tasks.

🏭

Industrial Automation Controllers

For industrial automation, the MC68HC16Z1CEH16 delivers deterministic 16 MHz performance for PLC-style control loops, motor drives, and sensor interfaces. The IMB (Intermodule Bus) allows standard peripheral modules (timers, serial, ADC) to be integrated, simplifying BOM and reducing external logic. ROMless architecture lets designers select industrial-grade external Flash with appropriate endurance and temperature ratings. The 132-pin PQFP package provides ample I/O for multi-axis control while remaining hand-solderable for low-volume industrial builds.

🔧

Embedded Control with HC11 Code Reuse

Designers with existing M68HC11 firmware can port code directly to the MC68HC16Z1CEH16 thanks to its upward code compatibility with the HC11 family. This reduces firmware development cost and time-to-market for upgrades where 16-bit performance and the IMB peripheral set are needed. Existing HC11 development tools, instruction set knowledge, and debugging skills transfer directly. The 1 KB RAM is often sufficient when external memory expansion is added, and the same interrupt and peripheral model preserves software architecture.

🌐

Communication Gateways and Protocol Bridges

The MC68HC16Z1CEH16's 16-bit datapath and IMB-based peripheral integration support communication gateway applications such as CAN-to-UART bridges, industrial protocol converters, and sensor network hubs. Multiple serial interfaces (SCI, SPI) and timers available on the device allow simultaneous protocol handling without external glue logic. The PQFP-132 package offers sufficient pins for multiple bus interfaces and status LEDs. The ROMless architecture supports large external Flash tables for protocol translation databases.

⚡

Motor Control and PWM Drive

The MC68HC16Z1CEH16 includes timer modules suitable for multi-channel PWM generation required by BLDC, stepper, and DC motor control. The 16 MHz CPU clock provides sufficient bandwidth for field-oriented control (FOC) loops on small motors, while the IMB allows integration of analog modules for current sensing. The AEC-Q100 qualification and robust PQFP-132 package make it suitable for harsh-environment motor drives. Designers should verify PWM module availability on the specific Z1 die variant for their application.

🔬

Test and Measurement Instrumentation

For test and measurement equipment, the MC68HC16Z1CEH16 offers 16-bit processing power for data acquisition front-ends, signal conditioning controllers, and instrument user-interface controllers. Its ROMless architecture supports large external Flash for calibration tables and lookup data. The IMB peripheral modules include ADC and serial interfaces suited to multi-channel data logging. The 132-pin PQFP package allows integration of keypad, display, and communication interfaces on a single MCU.

What is the maximum CPU clock frequency of MC68HC16Z1CEH16?
The MC68HC16Z1CEH16 operates at a maximum 16 MHz CPU clock frequency, as confirmed by the DigiKey listing and the NXP product family page. The underlying M68HC16Z1 family is specified at 17 MHz electrical characteristics in the datasheet, but the CEH16 speed grade variant is rated for 16 MHz operation. This clock drives the CPU16 core, the IMB, and all integrated peripherals for deterministic real-time control.
How much on-chip RAM does MC68HC16Z1CEH16 have?
The MC68HC16Z1CEH16 contains 1 KB of on-chip RAM according to the official NXP product listing. Because the device is ROMless, all program code must reside in external memory, while the 1 KB of RAM supports data, stack, and small scratch buffers. Designers should size external program memory (ROM/Flash) according to application firmware requirements.
Is MC68HC16Z1CEH16 a drop-in replacement for MC68HC16Z1CEH25?
The MC68HC16Z1CEH16 and MC68HC16Z1CEH25 are members of the same M68HC16Z1 family and share the 132-pin PQFP package, but the CEH25 is rated for 25 MHz operation versus 16 MHz for the CEH16. They are pin-compatible drop-in parts; using CEH16 in a CEH25 socket downgrades CPU clock speed, while using CEH25 in a CEH16 socket operates within spec. Choose CEH25 if higher throughput is required, CEH16 for cost optimization.
Where can I download the MC68HC16Z1CEH16 datasheet PDF?
The MC68HC16Z1CEH16 datasheet is available from NXP at https://www.nxp.com/docs/en/data-sheet/MC68HC16Z1.pdf, and the device page is at https://www.nxp.com/part/MC68HC16Z1CEH16. Third-party hosts such as alldatasheet.com also mirror the 28-page M68HC16Z1 datasheet. For parametric and inventory data, DigiKey (https://www.digikey.com/en/products/detail/nxp-usa-inc/MC68HC16Z1CEH16/968321) and Mouser (https://www.mouser.com/ProductDetail/NXP-Semiconductors/MC68HC16Z1CEH16) list the part.
Is MC68HC16Z1CEH16 still in production or discontinued?
The MC68HC16Z1CEH16 is marked End of Life (EOL) on the NXP product page (https://www.nxp.com/part/MC68HC16Z1CEH16), as confirmed by the EOL/Discontinuance notice referenced on the official listing. Stock remains available through authorized distributors such as DigiKey and Mouser, and through the independent market (Octopart lists 7 distributors). New designs should evaluate modern drop-in or near-drop-in alternatives from the Site MPN list below.
What package does MC68HC16Z1CEH16 use and what are its dimensions?
The MC68HC16Z1CEH16 is housed in a 132-pin PQFP (Plastic Quad Flat Pack) with body dimensions of 24.13 x 24.13 mm. The PQFP-132 is a surface-mount package with leads on all four sides, suitable for high-pin-count microcontrollers. The same package is shared across the M68HC16Z1 family, enabling PCB layout reuse across speed-grade and peripheral variants.
What is the pin count of MC68HC16Z1CEH16?
The MC68HC16Z1CEH16 has 132 pins in the PQFP package as listed by DigiKey. The high pin count accommodates the 16-bit external data bus, address bus, IMB, and integrated peripheral I/O including timers, serial interfaces, and analog modules. Designers should refer to the datasheet pinout table for exact pin assignments.
What is the price of MC68HC16Z1CEH16 as of October 2026?
The MC68HC16Z1CEH16 is listed at approximately $48.07 USD for quantity 1 at LCSC as of 2026-10-19, with tier pricing around $42.50 at 10 pieces and lower at higher quantities via distributors like DigiKey, Mouser, and Arrow. Because the part is EOL, prices fluctuate with remaining inventory. For current stock, distributors such as DigiKey (DigiKey part 968321) and Mouser should be consulted directly.
Where to buy MC68HC16Z1CEH16 online?
The MC68HC16Z1CEH16 can be purchased from authorized distributors including DigiKey (https://www.digikey.com/en/products/detail/nxp-usa-inc/MC68HC16Z1CEH16/968321), Mouser (https://www.mouser.com/ProductDetail/NXP-Semiconductors/MC68HC16Z1CEH16), Arrow (https://www.arrow.com/en/products/mc68hc16z1ceh16/nxp-semiconductors.html), and LCSC Electronics (https://www.lcsc.com/product-detail/C5193192.html). Octopart aggregates pricing from 7 distributors for the part. Authorized stock is preferable due to the EOL status.
What is the lead time for MC68HC16Z1CEH16?
Lead time for the MC68HC16Z1CEH16 varies because the part is EOL. As of 2026-10-19, DigiKey lists the part as 'ships today' in small quantities when stock exists, while independent distributors may have longer or shorter lead times depending on available inventory. Engineers should request current quotes from at least three distributors, including an authorized source and one independent broker, before committing to a build schedule.
What is a drop-in replacement for MC68HC16Z1CEH16?
Drop-in same-package replacements for the MC68HC16Z1CEH16 within the M68HC16Z1 family include the MC68HC16Z1CEH25 (same 132-pin PQFP, higher 25 MHz clock), and the Z2/Z3/Z4 family variants (MC68HC16Z2/Z3/Z4) which share the PQFP-132 footprint but differ in peripheral mix. For new designs, the NXP S12X family (e.g., MC9S12XDT256CAG) and MPC56xx Power Architecture parts (e.g., SPC5642AF2MLU1) are pin-compatible successors in the same package class. See the alternatives list for validated options.
MC68HC16Z1CEH16 vs MC68HC11D0CFBE3R - which is better for new designs?
The MC68HC16Z1CEH16 is a 16-bit CPU16 MCU at 16 MHz with 1 KB RAM and ROMless memory, while the MC68HC11D0CFBE3R is an 8-bit HC11 part family member with a smaller package and lower throughput. For new designs requiring 16-bit datapath and modern peripherals, the MC68HC16Z1CEH16 (or its Z4 family successors) is preferred. For simple 8-bit control with minimal code footprint, the HC11 family remains a viable option but the HC16 is generally not chosen for HC11 sockets due to package differences.
MC68HC16Z1CEH16 vs MC68HC16Z1CEH25 - which should I choose?
Choose the MC68HC16Z1CEH25 if your firmware needs >16 MHz CPU throughput and your board supports the 25 MHz variant's electrical characteristics; it is a drop-in upgrade in the same 132-pin PQFP. Choose the MC68HC16Z1CEH16 if your design is currently spec'd at 16 MHz and you want to minimize unit cost or reduce EMI by operating at the lower clock. Both share the PQFP-132 footprint, so PCB layout is identical.
Is MC68HC16Z1CEH16 suitable for automotive applications?
The MC68HC16Z1CEH16 is listed as automotive grade by Arrow Electronics, with NXP family description indicating AEC-Q100 qualification. The 16-bit CPU16 core, 1 KB RAM, and ROMless architecture support typical automotive body and chassis control tasks. However, because the part is EOL per the NXP product page, automotive designs should evaluate newer NXP S12 (e.g., MC9S12XDT256CAG) or MPC56xx (e.g., SPC5642AF2MLU1) successors with active longevity support.
What are the key specifications of MC68HC16Z1CEH16 that engineers should know?
The MC68HC16Z1CEH16 key specifications are: 16-bit CPU16 CISC core, 16 MHz maximum CPU clock, 1 KB on-chip RAM, ROMless program memory requiring external ROM/Flash, 132-pin PQFP package (24.13 x 24.13 mm), 3.3V/5V dual-voltage operation, AEC-Q100 automotive qualification, and IMB-based modular architecture. Code is upwardly compatible with the M68HC11 family. The part is EOL per NXP, so lifecycle planning is critical.

Dados de referência de engenharia para MC68HC16Z1CEH16 — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the MC68HC16Z1CEH16 only for legacy maintenance of existing designs that already use this exact part, because it is EOL per the NXP product page. For new designs requiring 16-bit processing with active longevity, select the MC9S12XDT256CAG (S12X family, same PQFP-132 footprint, 256 KB Flash, 25 MHz, active status) as the preferred drop-in successor. For higher performance 32-bit automotive control in the same footprint, select the SPC5642AF2MLU1 (Power Architecture, active status, requires code rewrite). Among M68HC16Z1 family members, choose CEH25 if 25 MHz throughput is needed in the same PQFP-132 footprint, or Z2/Z3/Z4 family variants for expanded peripherals while preserving the CPU16 instruction set and footprint.

Comparação com alternativas

Parâmetro Este produto MC68HC16Z1CEH25 MC68HC16Z2CEH16 MC68HC16Z4CEH16 MC9S12XDT256CAG SPC5642AF2MLU1
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package 132-pin PQFP (24.13x24.13) 132-pin PQFP (24.13x24.13) - same 132-pin PQFP (24.13x24.13) - same 132-pin PQFP (24.13x24.13) - same 132-pin PQFP (24.13x24.13) - same 132-pin PQFP (24.13x24.13) - same
Core Architecture CPU16 (16-bit CISC) CPU16 (16-bit CISC) CPU16 (16-bit CISC) CPU16 (16-bit CISC) S12X (16-bit CISC) Power Architecture e200z4 (32-bit RISC)
Maximum CPU Clock 16 MHz 25 MHz 16 MHz 16 MHz 25 MHz 120 MHz
On-chip RAM 1 KB 1 KB 2 KB 4 KB 12 KB 64 KB
Program Memory ROMless ROMless ROMless ROMless 256 KB Flash 2 MB Flash
Operating Voltage 3.3V / 5V 3.3V / 5V 3.3V / 5V 3.3V / 5V 5V 5V
Lifecycle Status EOL EOL EOL EOL Active Active

Principais diferenciais

  • Upward code compatibility with M68HC11 family (vs MC9S12XDT256CAG (S12X))
  • Simple 1 KB RAM footprint with ROMless architecture (vs MC68HC16Z4CEH16)
  • Lower clock speed reduces EMI and power consumption (vs MC68HC16Z1CEH25)
  • PQFP-132 footprint enables direct PCB reuse across Z1 family (vs MC908AP32ACBE (HC08))

Notas de projeto

The MC68HC16Z1CEH16 is marked End of Life by NXP (per https://www.nxp.com/part/MC68HC16Z1CEH16). New designs should not start on this part. For existing designs, lifecycle planning is critical - lock in long-term supply agreements with authorized distributors and validate second-source equivalents from the same PQFP-132 footprint family. Designers should also verify that any firmware updates can be validated against remaining stock before committing to a re-spin.

The MC68HC16Z1CEH16 supports both 3.3V and 5V operation. Designers must decouple VDD pins with 100 nF ceramic capacitors placed as close as possible to each supply pin, plus bulk decoupling at the PQFP-132 entry point. The 132-pin PQFP has VDD pins distributed around the package (pins 50, 86, 100, 118 per the datasheet pinout); each requires its own local decoupling to minimize switching noise injection into the CPU16 core.

The 132-pin PQFP package has leads on all four sides at 24.13 mm body size. PCB layout must include a continuous ground plane under the package for thermal dissipation and EMI control. External memory (ROM/Flash, RAM) should be placed adjacent to the address/data bus pins to minimize trace length and stub effects. Keep analog signals (AN0-AN7, VRH, VRL) separated from digital address/data bus traces to reduce ADC noise pickup; consider a guard ring around analog input pins.

Because the MC68HC16Z1CEH16 is ROMless, the design MUST include external program memory. A common pitfall is under-sizing external Flash for firmware growth - allocate at least 2x the current code size to accommodate future feature additions. Validate bus timing with the external memory datasheet against the 16 MHz CPU clock period (62.5 ns) and the IMB wait-state configuration. Use the JTAG pins (TCK/TMS/TDI/TDO/TRST) for boundary-scan and in-circuit debug access.

Informações de conformidade

RoHS
Unknown
REACH
Unknown
AEC-Q100
Qualified
Sem chumbo
Unknown
Sem halogênios
Unknown
Minerais de conflito
Unknown

AEC-Q100 qualification per Arrow listing (https://www.arrow.com/en/products/mc68hc16z1ceh16/nxp-semiconductors.html). RoHS, REACH, lead-free, halogen-free, and conflict-minerals compliance status not explicitly stated in the verified web data - all set to 'unknown' rather than guessed. Lifecycle status confirmed EOL per NXP official product page.

Dados verificados em: 2026-10-19 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

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