MC68HC908QT4VPE - 8-Bit 8MHz Flash MCU | NXP | Industrial
MPN: MC68HC908QT4VPE ✗ Cuối đờiMC68HC908QT4VPE Tóm tắt
What is an 8-bit MCU? A microcontroller is a semiconductor device that combines a processor core, program memory, data memory, I/O, and peripherals on one integrated circuit. The M68HC08 family uses the CPU08 enhanced core, a complex instruction set computer architecture, and Von Neumann organization. Within the hierarchy, this part is an MCU, an embedded microcontroller, an 8-bit microcontroller, and a member of NXP's M68HC08 family.
Verified highlights include 4 KB (4K x 8) of Flash program memory, an 8 MHz operating frequency, an integrated ADC, and an industrial operating range. A further indexed specification lists 4.5 V to 5.5 V supply voltage and 40 I/O ports, but those values conflict with the exact MPN's eight-pin package listing and are therefore not presented as authoritative target-part specifications. Flash memory supports in-system reprogramming workflows, although programming voltage, timing, and electrical limits require confirmation from the manufacturer documentation.
The CPU08 platform suits compact control tasks that need deterministic 8-bit processing, serial communication, digital control, and analog measurement without requiring a higher-cost 16- or 32-bit processor. Its small package simplifies through-hole prototypes, but package pin limitations constrain how many external functions can be connected simultaneously. Software migration should therefore be evaluated at both instruction and peripheral levels rather than inferred from the 8-bit label.
Typical uses include industrial control modules, compact instrumentation, educational embedded systems, sensor interfaces, and legacy equipment support. The ADC makes the MCU useful when a board must convert analog inputs into digital control values, while Flash permits field-updatable firmware when the manufacturer's programming procedure is followed.
Designers should resolve the conflicting indexed records before release. Confirm the exact ordering code, clock rating, pinout, memory map, programming model, and electrical limits in NXP documentation; do not substitute data associated with another HC08 package or variant. This page distinguishes exact-MPN distributor evidence from broader family material and flags every missing engineering value rather than inferring it.
Bộ thay thế dễ dàng lắp đặt cho MC68HC908QT4VPE — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC68HC908QT4VPE (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, RAM, ADC, Peripherals.
MC68HC908QT4CPE-FR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC908QT1ACPE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68HC908GP32CB
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MCHC908QT4VDWER
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S08AC8MFGE
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC68HC908QT4VPE Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit microcontroller (MCU) |
| Architecture | CISC with Von Neumann architecture |
| Processor Family | Enhanced M68HC08 CPU08 family |
| Clock Speed | 8 MHz |
| Flash Memory | 4 KB (4K x 8) |
| ADC | Integrated |
| Package Type | 8-pin DIP |
| Kiểu lắp đặt | Through-hole |
| Operating Range | Industrial |
| Tần số xung maksimum | 8 MHz according to exact-MPN DigiKey listing |
Hướng dẫn cấu hình chân MC68HC908QT4VPE 8-pin dip
Cấu hình chân cho MC68HC908QT4VPE (8-pin dip gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho MC68HC908QT4VPE.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MC68HC908QT4VPE phù hợp cho 6 Áp dụngs: Legacy Industrial Control, Compact Sensor Interface, Educational Embedded Controller, Instrumentation and Data Logging, Appliance Control Module, Legacy Communication Adapter.
Legacy Industrial Control
The MC68HC908QT4VPE fits maintenance of existing industrial-control boards that depend on the 8 MHz CPU08 core and 4 KB of Flash. Its 8-pin DIP format simplifies through-hole replacement work, while the integrated ADC supports analog supervision without requiring a separate converter. The main constraint is lifecycle risk: NXP labels the MCU End of Life, so production use should include verified-source procurement and a documented migration plan. Preserve the original clock, programming, and reset arrangements rather than assuming every 8-pin HC08 device is interchangeable.
Được đề xuất
Compact Sensor Interface
The integrated ADC makes the MC68HC908QT4VPE applicable to small sensor-interference controllers where analog signals must be sampled by an embedded processor. Its verified 4 KB Flash capacity is adequate only for compact firmware, so acquisition code, calibration, communications, and diagnostics must be sized carefully. The 8-pin DIP package favors accessible prototypes and repairable through-hole assemblies. Before schematic release, confirm the exact ADC resolution, sampling controls, pin multiplexing, and analog input count from the manufacturer documentation.
Được đề xuất
Educational Embedded Controller
The MC68HC908QT4VPE provides a compact platform for teaching basic CISC instruction behavior, embedded memory organization, ADC use, and event-driven control. Its 8 MHz CPU08 core and 4 KB Flash make code sizing visible to students, while the through-hole DIP package is easier to inspect and replace than a fine-pitch surface-mount device. Because the lifecycle and several electrical details require confirmation, educational use should emphasize firmware portability and board-level measurement rather than teaching unverified maximum ratings.
Được đề xuất
Instrumentation and Data Logging
In a compact instrument, the MC68HC908QT4VPE can manage an analog measurement channel and execute tightly scoped control or logging logic. The ADC removes the need for a standalone data converter, while the 4 KB Flash limit makes code modularity important: acquisition, calibration, and storage routines should be separated to simplify later migration. Verify sensor input voltage limits, ADC accuracy, oscillator behavior, and available I/O because these details are absent from the supplied exact-MPN records.
Được đề xuất
Appliance Control Module
The MC68HC908QT4VPE can serve in a small appliance-control module when the original firmware and 4 KB Flash budget are sufficient for motor, relay, or sensor sequencing. The CPU08 architecture avoids the memory overhead associated with a much larger MCU, and the DIP package simplifies qualification of repair assemblies. Engineers should still validate brownout behavior, reset timing, output drive limits, and operating-temperature requirements against the exact MCU. NXP's End of Life status makes obsolescence planning essential for new appliance platforms.
Được đề xuất
Legacy Communication Adapter
For repairing a legacy communication adapter built around the HC08Q family, the MC68HC908QT4VPE can preserve established firmware behavior when timing and peripherals match the original design. The 8 MHz CPU08 operating point provides continuity with CPU08-based code, while 4 KB Flash leaves limited room for protocol expansion. Do not choose this part solely because it is an 8-pin HC08 MCU: verify UART or serial functions, interrupt vectors, port mapping, oscillator pins, and programming signals before approving a substitution.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68HC908QT4VPE — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC68HC908QT4CPE | MC908QT1ACPE | MC68HC908GP32CB | MCHC908QT4VDWER |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Quantity-1 Price as of 2026-10-20 | Not supplied | Not supplied | Not supplied | Not supplied | Not supplied |
Bảo phân biệt quan trọng
- Exact-MPN distributor agreement on memory capacity (vsMC908QT1ACPE)
- Documented exact-MPN clock entry (vsMC68HC908QT4CPE)
- NXP product page exposes explicit End of Life status (vsGeneric HC08 alternatives)
Ghi chú thiết kế
Do not migrate from secondary records showing 16 MHz or LCC-52. Exact-MPN DigiKey and Rochester records identify 8 MHz and an 8-pin DIP, while the conflicting page may combine data from another member of the HC08 family. Before schematic capture or PCB assembly, compare the ordering code, mechanical drawing, and pin table against NXP documentation. An incorrect package assumption can produce an irreplaceable board because an 8-pin MCU cannot be mounted on a 52-contact footprint.
Treat the exact supply-voltage range as unverified. One secondary record lists 4.5 V to 5.5 V, but the same source conflicts with exact-MPN package data and therefore cannot safely establish the target's rating. Use the manufacturer electrical characteristics for absolute maximum, recommended operating, and brownout conditions. Decoupling values and startup behavior must also follow that document; no capacitor values are asserted here because none appear in the supplied evidence.
Preserve the original through-hole footprint only after checking the official mechanical drawing, pin spacing, row width, and pin-one orientation. The verified distributor description says 8-pin DIP, but it does not establish whether the package is narrow or wide body. In a repair design, inspect the original board rather than relying on the generic DIP name. Confirm programming-test access, reset, oscillator, ground, supply, and I/O nets before ordering replacement boards.
A four-kilobyte Flash budget is the principal firmware constraint. Include boot, reset, interrupt-vector, application, calibration, and communication code in a complete size estimate rather than measuring only the main loop. MC908QT1ACPE offers only 1.5 KB according to its indexed record, so adopting it could break the existing image. For redesigns, separate hardware abstraction and update logic to make migration to a larger active MCU practical.
Thông tin tuân thủ
The supplied verified data contains no extractable RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement for this exact MPN. No compliance claim is inferred from the package or industrial designation.
