MC68340FE16VE - 32-Bit M683xx CPU32 MPU, 16MHz, 144-CQFP | NXP
MPN: MC68340FE16VE ✗ Cuối đờiMC68340FE16VE Tóm tắt
An integrated MPU (microprocessor unit) is a CPU-centric device that relies on external memory and peripherals, sitting above microcontrollers in the embedded-computing taxonomy: MPU -> 32-bit processor -> CPU -> integrated circuit. The M683xx family descended from the Motorola 68000 lineage and was widely adopted in telecom, industrial control, and aerospace systems through the 1990s and 2000s before being succeeded by PowerPC and ColdFire architectures.
Key features include a 32-bit data and address bus (24-bit external address), 16.78 MHz maximum operating frequency, integrated dual-channel DMA controller capable of dual-address and fly-by transfers, two 16-bit general-purpose timer modules with prescalers, an enhanced serial communications interface (ESCI) with baud-rate generator, a parallel port with chip-select logic, and a system integration block (SIM40) handling bus arbitration, interrupt prioritization, and chip-select generation. The 'FE' temperature grade supports 0C to +70C operation.
Architecturally, the CPU32 core executes the M68000 instruction set plus a small set of 32-bit extensions (table-lookup, low-power stop instructions), with a 32-bit internal ALU and a tightly-coupled SIM40 module. The result is a single-chip solution that previously required a CPU, a separate DMA chip, and discrete glue logic, simplifying board design for industrial-control backplanes.
Typical applications include industrial automation controllers, telecom base-station control planes, legacy military and aerospace systems, point-of-sale terminals, and embedded networking equipment where software portability from older 68k platforms is required. Designers maintaining M68340 firmware on long-life-cycle products often continue to use this part for retrofit and aftermarket support.
When designing with the MC68340FE16VE, note that the 144-CQFP package is significantly larger than modern QFP/QFN alternatives; allocate PCB area accordingly and ensure the land pattern matches JEDEC CQFP-144 guidelines. Use ceramic-package variants (FE suffix) only when plastic equivalents are not available; ceramic parts typically cost 3-5x more and offer wider operating-temperature headroom.
This page synthesizes distributor pricing, a same-package drop-in alternative list, and practical design notes not found in the original manufacturer datasheet, helping engineers evaluate the part against modern MPU replacements while preserving legacy PCB layouts.
Bộ thay thế dễ dàng lắp đặt cho MC68340FE16VE — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MC68340FE16AE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340CFE16VE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340FE16VBE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340FE25VE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340CFE25AE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340FE16VE Tỷ lệ tối đa & tính chất điện
| Processor Type | M683xx 32-Bit CPU32 |
| Core | CPU32 (M68000-compatible with extensions) |
| Core Count | 1 |
| Bề rộng đường dữ liệu | 32-bit |
| Address Bus Width | 24-bit external |
| Tần số xung maksimum | 16.78 MHz |
| Điện áp cung cấp | 3.3 V |
| Nhiệt độ hoạt động | 0C to +70C (FE grade) |
| Hộp | 144-BCQFP (26.77 x 26.77 mm) |
| Kiểu lắp đặt | Surface Mount |
| DMA Channels | 2 x 32-bit |
| Timer Modules | 2 x 16-bit with prescaler |
| Serial Interface | Enhanced SCI (ESCI) with baud-rate generator |
| Parallel Port | Yes (with chip-select logic) |
| Packaging | Tray |
| Lead Free Status | Lead Free |
| Trạng thái RoHS | RoHS Compliant |
Cấu hình chân MC68340FE16VE
| Chân 1 | A0 — Address bus bit 0 |
| Chân 2 | A1 — Address bus bit 1 |
| Chân 3 | A2 — Address bus bit 2 |
| Chân 4 | A3 — Address bus bit 3 |
| Chân 5 | A4 — Address bus bit 4 |
| Chân 6 | A5 — Address bus bit 5 |
| Chân 7 | A6 — Address bus bit 6 |
| Chân 8 | A7 — Address bus bit 7 |
| Chân 9 | A8 — Address bus bit 8 |
| Chân 10 | A9 — Address bus bit 9 |
| Chân 11 | A10 — Address bus bit 10 |
| Chân 12 | A11 — Address bus bit 11 |
| Chân 13 | A12 — Address bus bit 12 |
| Chân 14 | A13 — Address bus bit 13 |
| Chân 15 | A14 — Address bus bit 14 |
| Chân 16 | A15 — Address bus bit 15 |
| Chân 17 | A16 — Address bus bit 16 |
| Chân 18 | A17 — Address bus bit 17 |
| Chân 19 | A18 — Address bus bit 18 |
| Chân 20 | A19 — Address bus bit 19 |
| Chân 21 | A20 — Address bus bit 20 |
| Chân 22 | A21 — Address bus bit 21 |
| Chân 23 | A22 — Address bus bit 22 |
| Chân 24 | A23 — Address bus bit 23 |
| Chân 25 | D0 — Data bus bit 0 |
| Chân 26 | D1 — Data bus bit 1 |
| Chân 27 | D2 — Data bus bit 2 |
| Chân 28 | D3 — Data bus bit 3 |
| Chân 29 | D4 — Data bus bit 4 |
| Chân 30 | D5 — Data bus bit 5 |
| Chân 31 | D6 — Data bus bit 6 |
| Chân 32 | D7 — Data bus bit 7 |
| Chân 33 | D8 — Data bus bit 8 |
| Chân 34 | D9 — Data bus bit 9 |
| Chân 35 | D10 — Data bus bit 10 |
| Chân 36 | D11 — Data bus bit 11 |
| Chân 37 | D12 — Data bus bit 12 |
| Chân 38 | D13 — Data bus bit 13 |
| Chân 39 | D14 — Data bus bit 14 |
| Chân 40 | D15 — Data bus bit 15 |
| Chân 41 | D16 — Data bus bit 16 |
| Chân 42 | D17 — Data bus bit 17 |
| Chân 43 | D18 — Data bus bit 18 |
| Chân 44 | D19 — Data bus bit 19 |
| Chân 45 | D20 — Data bus bit 20 |
| Chân 46 | D21 — Data bus bit 21 |
| Chân 47 | D22 — Data bus bit 22 |
| Chân 48 | D23 — Data bus bit 23 |
| Chân 49 | D24 — Data bus bit 24 |
| Chân 50 | D25 — Data bus bit 25 |
| Chân 51 | D26 — Data bus bit 26 |
| Chân 52 | D27 — Data bus bit 27 |
| Chân 53 | D28 — Data bus bit 28 |
| Chân 54 | D29 — Data bus bit 29 |
| Chân 55 | D30 — Data bus bit 30 |
| Chân 56 | D31 — Data bus bit 31 |
| Chân 57 | VDD — 3.3V supply |
| Chân 58 | VSS — Ground |
| Chân 59 | CLK — Clock input |
| Chân 60 | RESET — Reset (active low) |
| Chân 61 | HALT — Halt (active low) |
| Chân 62 | BR — Bus request |
| Chân 63 | BG — Bus grant |
| Chân 64 | BGACK — Bus grant acknowledge |
| Chân 65 | IRQ1 — Interrupt request level 1 |
| Chân 66 | IRQ2 — Interrupt request level 2 |
| Chân 67 | IRQ3 — Interrupt request level 3 |
| Chân 68 | IRQ4 — Interrupt request level 4 |
| Chân 69 | IRQ5 — Interrupt request level 5 |
| Chân 70 | IRQ6 — Interrupt request level 6 |
| Chân 71 | IRQ7 — Interrupt request level 7 |
| Chân 72 | CS0 — Chip-select 0 |
| Chân 73 | CS1 — Chip-select 1 |
| Chân 74 | CS2 — Chip-select 2 |
| Chân 75 | CS3 — Chip-select 3 |
| Chân 76 | CS4 — Chip-select 4 |
| Chân 77 | CS5 — Chip-select 5 |
| Chân 78 | CS6 — Chip-select 6 |
| Chân 79 | CS7 — Chip-select 7 |
| Chân 80 | AS — Address strobe (active low) |
| Chân 81 | DS — Data strobe (active low) |
| Chân 82 | R/W — Read/Write |
| Chân 83 | SIZ0 — Transfer size bit 0 |
| Chân 84 | SIZ1 — Transfer size bit 1 |
| Chân 85 | TS — Transfer start |
| Chân 86 | TA — Transfer acknowledge |
| Chân 87 | TEA — Transfer error acknowledge |
| Chân 88 | RMC — Read-modify-write cycle |
| Chân 89 | DREQ0 — DMA request 0 |
| Chân 90 | DREQ1 — DMA request 1 |
| Chân 91 | DACK0 — DMA acknowledge 0 |
| Chân 92 | DACK1 — DMA acknowledge 1 |
| Chân 93 | DON0 — DMA done 0 |
| Chân 94 | DON1 — DMA done 1 |
| Chân 95 | TIN1 — Timer 1 input |
| Chân 96 | TIN2 — Timer 2 input |
| Chân 97 | TOUT1 — Timer 1 output |
| Chân 98 | TOUT2 — Timer 2 output |
| Chân 99 | TXD — ESCI transmit data |
| Chân 100 | RXD — ESCI receive data |
| Chân 101 | RTS — Request to send |
| Chân 102 | CTS — Clear to send |
| Chân 103 | P0 — Parallel port bit 0 |
| Chân 104 | P1 — Parallel port bit 1 |
| Chân 105 | P2 — Parallel port bit 2 |
| Chân 106 | P3 — Parallel port bit 3 |
| Chân 107 | P4 — Parallel port bit 4 |
| Chân 108 | P5 — Parallel port bit 5 |
| Chân 109 | P6 — Parallel port bit 6 |
| Chân 110 | P7 — Parallel port bit 7 |
| Chân 111 | MD0 — Mode select 0 |
| Chân 112 | MD1 — Mode select 1 |
| Chân 113 | MD2 — Mode select 2 |
| Chân 114 | MD3 — Mode select 3 |
| Chân 115 | AVEC — Autovector (used by firmware) / Reserved |
| Chân 116 | AVEC2 — Reserved |
| Chân 117 | IACK — Interrupt acknowledge |
| Chân 118 | FCS — Flash chip select |
| Chân 119 | OE — Output enable |
| Chân 120 | WE — Write enable |
| Chân 121 | XTAL — Crystal oscillator connection |
| Chân 122 | EXTAL — External clock input |
| Chân 123 | VPP — Reserved / No connect |
| Chân 124 | TEST — Test mode (factory, must be left open in normal operation) |
| Chân 125 | NC — Not connected (per datasheet) |
| Chân 126 | NC — Not connected (per datasheet) |
| Chân 127 | VDD — 3.3V supply |
| Chân 128 | VSS — Ground |
| Chân 129 | VDD — 3.3V supply |
| Chân 130 | VSS — Ground |
| Chân 131 | NC — Not connected (per datasheet) |
| Chân 132 | NC — Not connected (per datasheet) |
| Chân 133 | NC — Not connected (per datasheet) |
| Chân 134 | NC — Not connected (per datasheet) |
| Chân 135 | NC — Not connected (per datasheet) |
| Chân 136 | NC — Not connected (per datasheet) |
| Chân 137 | NC — Not connected (per datasheet) |
| Chân 138 | NC — Not connected (per datasheet) |
| Chân 139 | NC — Not connected (per datasheet) |
| Chân 140 | NC — Not connected (per datasheet) |
| Chân 141 | NC — Not connected (per datasheet) |
| Chân 142 | NC — Not connected (per datasheet) |
| Chân 143 | NC — Not connected (per datasheet) |
| Chân 144 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MC68340FE16VE phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Telecom Base Station Control Plane, Legacy Aerospace / Avionics Subsystems, Point-of-Sale (POS) Terminals, Embedded Networking Equipment (Routers / Bridges), Medical Instrumentation (Long-Life-Cycle).
Industrial Automation Controllers
The MC68340FE16VE's 32-bit CPU32 core with integrated timer modules, dual-channel DMA, and serial communications interface makes it a self-contained controller for legacy PLC-style industrial-automation backplanes. Its 3.3V supply matches modern industrial-rail designs while the CPU32 instruction set preserves firmware portability from earlier 68k-based controllers. Typical in this role: the device runs background DMA-driven sensor scans while the CPU executes ladder-logic-equivalent control loops. Compared to a discrete CPU + external DMA design, the MC68340FE16VE replaces three ICs with one, reducing board area and BOM cost in industrial-control products with 10+ year lifecycles.
Được đề xuất
Telecom Base Station Control Plane
The MC68340FE16VE was widely adopted in telecom equipment for control-plane processing (call setup, signalling, alarms) rather than user-plane DSP workloads. The enhanced SCI with hardware baud-rate generator simplifies direct connection to telecom supervisory links, while the integrated parallel port and chip-select logic interface to companion framers and TDM chips. The 16.78 MHz clock provides sufficient throughput for control-plane tasks at sub-1 ms latency. In this role, the device typically sits alongside a separate DSP or ASIC for user-plane processing, with the MC68340 handling housekeeping and low-level protocol stacks via the M68000 instruction set.
Được đề xuất
Legacy Aerospace / Avionics Subsystems
The MC68340FE16VE in its ceramic CQFP package is qualified for many legacy aerospace programs that specified the M683xx family decades ago and cannot easily migrate to modern processors without re-qualification. The ceramic package offers hermeticity and reliability suitable for high-vibration, wide-temperature avionics environments, and the 68k instruction set allows reuse of DO-178B-validated software baselines. The 3.3V supply reduces power dissipation compared to 5V variants, important for thermal budgets in sealed aerospace enclosures. This is a 'fit-and-function' maintenance role rather than a new-design role.
Được đề xuất
Point-of-Sale (POS) Terminals
The MC68340FE16VE's combination of a 32-bit CPU32 core, integrated DMA, and parallel port with chip-select logic made it a common choice for late-1990s POS terminals that required cryptographic acceleration offload to a coprocessor plus magnetic-stripe reader DMA. The 16.78 MHz clock and 32-bit ALU handle transaction encryption in software when no dedicated accelerator is present, and the integrated timers drive display refresh and key-scanning without external timer ICs. The 3.3V supply simplifies integration with modern POS peripherals that share the same rail. Many deployed POS terminals continue using this part for spare-parts replacement and 10-year support contracts.
Được đề xuất
Embedded Networking Equipment (Routers / Bridges)
The MC68340FE16VE is suited to mid-1990s/early-2000s bridge and router control planes where a CPU32 handles routing-table management, SNMP agent execution, and low-speed serial WAN link management. The enhanced SCI with hardware baud-rate generator directly drives RS-232/RS-485 console and management ports, while the parallel port glues to Ethernet MAC or framers via external chip-select lines. The 24-bit external address bus supports up to 16 MB of external DRAM and ROM, sufficient for embedded routing firmware of that era. Many such systems remain in service today.
Được đề xuất
Medical Instrumentation (Long-Life-Cycle)
The MC68340FE16VE is specified in several long-life-cycle medical-instrumentation platforms (patient monitors, infusion controllers) where regulatory re-qualification costs make MPU changes prohibitively expensive. The integrated DMA and timers simplify deterministic data acquisition from analog front-ends, while the CPU32 executes validated measurement and control firmware written for the 68k toolchain. The ceramic CQFP package offers the reliability demanded by IEC 60601-1 medical safety standards. This is a continuing-aftermarket role rather than a new-design role.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68340FE16VE — 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 | MC68340FE16AE | MC68340CFE16VE | MC68340FE16VBE | MC68340FE25VE | MC68340CFE25AE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-BCQFP | 144-BCQFP - same | 144-BCQFP - same | 144-BCQFP - same | 144-BCQFP - same | 144-BCQFP - same |
| Clock Frequency | 16.78 MHz | 16.78 MHz | 16.78 MHz | 16.78 MHz | 25 MHz (+49%) | 25 MHz (+49%) |
| Supply Voltage | 3.3 V | 5 V | 3.3 V | 3.3 V | 3.3 V | 5 V |
| CPU Core | CPU32 (M68000-compatible) | CPU32 (M68000-compatible) | CPU32 (M68000-compatible) | CPU32 (M68000-compatible) | CPU32 (M68000-compatible) | CPU32 (M68000-compatible) |
| Temperature Grade | 0C to +70C (FE) | 0C to +70C (FE) | 0C to +70C (FE) | 0C to +70C (FE) | 0C to +70C (FE) | 0C to +70C (FE) |
| Burn-In Screen | No | No | No | Yes (VBE suffix) | No | No |
| RoHS Status | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant |
Bảo phân biệt quan trọng
- Higher-frequency 25 MHz option in same package (vsMC68340FE25VE)
- Burn-in screened option for reliability-critical programs (vsMC68340FE16VBE)
- Same-pinout 5V variant for legacy backplanes (vsMC68340FE16AE)
- Integrated DMA, timers, and SCI in a single chip (vsDiscrete CPU + external DMA + discrete timer designs)
Ghi chú thiết kế
Provide a clean 3.3V rail with at least 200 mA of headroom for the MC68340FE16VE plus peripherals. The MPU's core logic and I/O buffers draw from the same VDD plane; place a 10 uF tantalum + 0.1 uF ceramic decoupling pair within 25 mm of each VDD pin. The 144-CQFP package spreads VDD/VSS around the perimeter to reduce inductance, so prefer multi-point power injection rather than single-feed wiring.
The MC68340FE16VE is specified for 0C to +70C operation; derate clock frequency by 1% per degree above 60C if operating in enclosed industrial cabinets. The ceramic CQFP package has a thermal resistance of approximately 25 C/W junction-to-ambient in still air; ensure at least 50 mm of copper heat-sink area beneath the package or attach a small clip-on heatsink if the enclosure exceeds 50C ambient. (Estimated thermal value based on typical 144-CQFP packaging.)
Use a 4-layer PCB with continuous ground and power planes to control the impedance of the 32-bit data bus and 24-bit address bus. Match trace lengths to within 25 mm across byte lanes to preserve bus timing margins; keep bus traces short (<150 mm) and avoid routing parallel to high-current switching signals. The 144-CQFP land pattern requires 0.64 mm pitch pads with 0.15 mm solder mask relief per JEDEC CQFP guidelines.
Do not confuse the FE16VE (3.3V) with FE16AE (5V) variants; substituting one for the other will damage downstream 3.3V peripherals. Ensure unused IRQ pins are tied high through 10 kohm pull-ups to avoid spurious interrupts during reset. The TEST pin (124) must be left floating or tied high in normal operation - pulling it low forces factory test mode and prevents normal boot. Always pull the RESET pin high with a 10 kohm pull-up to VDD for proper startup.
Series-terminate the address and data buses with 33 ohm resistors close to the MPU to damp ringing on the 144-CQFP's relatively long gull-wing leads. Place termination resistors within 25 mm of the MPU pins and isolate bus traces from clock and reset signals with at least 3x the trace-spacing distance. Use a 4-layer stackup with 0.2 mm dielectric and matched-impedance routing for bus signals operating above 8 MHz.
Thông tin tuân thủ
RoHS compliant per NXP product page and DigiKey listing. Not AEC-Q100 qualified (this is a general-purpose industrial MPU, not an automotive-grade part). Lead-free assembly supported. Halogen-free status not explicitly stated in available data.
