NXP Semiconductors MC9S12T64CPKE16

Overview

MC9S12T64CPKE16 from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 64 KB Flash EEPROM, 4 KB RAM, and an integrated 8-channel 10-bit ADC. It operates at up to 25 MHz core frequency with a PLL-based clock system, supports CAN 2.0A/B communication, and targets automotive body control modules requiring deterministic real-time response.

For engineers reviewing the MC9S12T64CPKE16 datasheet, MC9S12T64CPKE16 pinout, MC9S12T64CPKE16 application, or MC9S12T64CPKE16 equivalent, key selection criteria include its 80-pin LQFP package, on-chip voltage regulator, background debug interface, and CAN/SCI/SPI peripheral integration for embedded vehicle networks.

Technical Context

The MC9S12T64CPKE16 implements the HCS12 CPU12 core with 16-bit data path, 24-bit addressing, and instruction set backward compatibility with HC11. Its Clocks and Reset Generator (CRG) module supports crystal, ceramic resonator, or external clock input with programmable PLL multiplication (×1 to ×32) and multiple low-power stop/wait modes.

Peripheral integration includes an 8-channel Enhanced Capture Timer (ECT), 8-channel PWM with center-aligned capability, Fast Background Debug Module (FBDM) for in-circuit debugging, and multiplexed external bus interface (MEBI) supporting 8/16-bit memory expansion. All peripherals are memory-mapped and accessible via standard read/write instructions.

Key Specifications

Pinout & Package

MC9S12T64CPKE16 is housed in an 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions include dedicated CANH/CANL differential pair, dual SCI TXD/RXD pairs, SPI MOSI/MISO/SCK/SS signals, and 16-bit multiplexed address/data bus (AD0–AD15) with control lines (AS, DS, R/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.

Compared with S912XDP512J1MALR and MC9S12XEP100MALR, the MC9S12T64CPKE16 delivers optimal cost-performance balance for mid-tier body electronics, offering sufficient Flash/RAM and CAN bandwidth without over-provisioning resources needed only in premium platforms.

Availability

MC9S12T64CPKE16 is available at Aetrix Electronics and suitable for automotive body control units, industrial motor drives, and off-highway equipment monitors requiring stable component supply and long-term lifecycle support.

Supply support for MC9S12T64CPKE16 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

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.

The MC9S12T64CPKE16 belongs to the legacy HCS12 family designed specifically for cost-sensitive automotive body electronics, emphasizing robustness, CAN integration, and flash-based field-upgradability in harsh environments.

FAQ

What is the maximum operating frequency of the MC9S12T64CPKE16?

The MC9S12T64CPKE16 achieves a maximum core frequency of 25 MHz using its integrated PLL. This is configured via the PRDIV8 and FDIV register bits in the Clocks and Reset Generator (CRG) module, allowing multiplication of the external crystal or resonator input (typically 4–8 MHz) to reach the target frequency while maintaining stable operation within the 4.5–5.5 V supply range.

Does the MC9S12T64CPKE16 support CAN FD?

The MC9S12T64CPKE16 implements a classic CAN 2.0A/B controller compliant with ISO 11898-1:2003 and does not support CAN FD physical layer signaling or protocol extensions such as variable bit rates or extended data length. Its CAN module operates at up to 1 Mbit/s with fixed 8-byte payload, making it suitable for traditional automotive body networks but not next-generation high-throughput applications.

How is debug functionality implemented on the MC9S12T64CPKE16?

Debugging for the MC9S12T64CPKE16 is handled by the Fast Background Debug Module (FBDM), which uses a single-wire serial interface (BKGD pin) to communicate with external BDM pods. This allows full memory inspection, register read/write, breakpoint setting, and real-time execution control without halting the CPU-enabling non-intrusive development and validation of time-critical automotive firmware.

What packaging and thermal characteristics define the MC9S12T64CPKE16?

The MC9S12T64CPKE16 is supplied in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with an exposed thermal pad. Its specified operating junction temperature range is –40°C to +125°C, and it features internal thermal shutdown protection triggered above 150°C. The package supports reflow soldering per JEDEC J-STD-020 and meets automotive AEC-Q100 Grade 2 reliability requirements.

Can the MC9S12T64CPKE16 operate from a single 5 V supply?

Yes, the MC9S12T64CPKE16 is designed to operate from a single 5 V supply applied to VDD. Its integrated voltage regulator (VREG) generates the required 2.5 V core voltage internally, while separate VDDX and VDDPLL pins allow optional independent supply routing for external bus I/O and PLL analog circuitry-though these may be tied to VDD in most implementations to simplify board design.