MC68340CAG16E - 32-Bit MPU, 16MHz, DMA, 144-LQFP | NXP Semiconductors
MPN: MC68340CAG16E ⚠ Lần mua cuốiMC68340CAG16E Tóm tắt
An MPU (Microprocessor Unit) is the central processing element of an embedded computing system, distinct from a microcontroller in that it requires external memory and peripheral devices to function. The MC68340CAG16E belongs to the M683xx family of 32-bit processors, descending from the Motorola 68000 architecture lineage. Within the broader taxonomy it sits as: MPU -> 32-bit CISC processor -> M68000 family -> M683xx generation -> integrated processor with DMA. The CPU32 core is the heart of the device, providing object-code compatibility with the M68000 while adding new instructions for efficient compiled-code execution.
Key features of the MC68340CAG16E include the CPU32 processor core with 32-bit internal data paths and 16-bit external data bus option, two independent DMA channels capable of handling 32-bit transfers autonomously, an integrated dual serial module (UART/USART), a 16-bit timer module, and a system integration block containing chip-select and wait-state generation logic. The device supports both 8-bit and 16-bit external data port widths for cost-optimized memory interfaces.
Architecturally, the MC68340CAG16E separates the CPU32 core from memory and I/O via the standard M68000 bus protocol. Peripherals such as the DMA controller and serial module share bus bandwidth with the core, with arbitration handled by the on-chip bus arbiter. The integrated peripherals significantly reduce external glue logic, enabling compact and reliable designs in industrial and telecommunications applications.
Typical applications include industrial process control, telecommunications equipment, point-of-sale terminals, factory automation controllers, and embedded networking devices. The 16 MHz core frequency and 32-bit internal performance are well matched to mid-range control tasks requiring deterministic response, while the integrated DMA offloads repetitive data movement from the CPU.
When designing with this part, carefully review the EOL notice from NXP - the device is in End-of-Life status - and plan long-term procurement with authorized distributors or qualified aftermarket suppliers. Validate operating voltage (5V) against your system's tolerance and confirm the 144-LQFP package can be handled by your assembly line.
This page synthesizes distributor pricing, drop-in alternative search results, lifecycle observations, and practical design notes not found in a single manufacturer datasheet, helping engineers and buyers make procurement and substitution decisions with confidence.
Bộ thay thế dễ dàng lắp đặt cho MC68340CAG16E — 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 MC68340CAG16E (cùng hình factor và footprint) — khác nhau ở Core Architecture, Data Bus Width, Lead Free Status, Package / Case, Processor Type.
MC68340CAG20E
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340CAG25E
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68331CAG16
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340CAG16
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC68340CFC16E
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC68332ACEH20
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68340CAG16E Tỷ lệ tối đa & tính chất điện
| Processor Type | M683xx 32-Bit MPU with DMA |
| Core Architecture | CPU32 (M68000-compatible, enhanced) |
| Operating Frequency | 16 MHz |
| Bề rộng đường dữ liệu | 32-bit internal / 16-bit or 8-bit external |
| Điện áp cung cấp | 5 V |
| DMA Channels | 2 (32-bit) |
| On-chip Peripherals | Dual Serial Module, 16-bit Timer, System Integration (chip-select/wait-state) |
| Hộp / Vỏ | 144-LQFP |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tray |
| Cấp MSL | 3 (168 Hours) |
| Lead Free Status | Lead Free |
| Trạng thái RoHS | RoHS Compliant |
| REACH Status | REACH Unaffected |
| HTSUS Code | 8542.31.0001 |
| Instruction Set | M68000 (object-code compatible with enhancements for CPU32) |
| Family Lineage | Motorola M68000 / M683xx |
Cấu hình chân MC68340CAG16E
| Chân 1 | VCC — +5V supply |
| Chân 2 | A0 — Address bit 0 / Data D0 in 16-bit mux mode |
| Chân 3 | A1 — Address bit 1 |
| Chân 4 | A2 — Address bit 2 |
| Chân 5 | A3 — Address bit 3 |
| Chân 6 | A4 — Address bit 4 |
| Chân 7 | A5 — Address bit 5 |
| Chân 8 | A6 — Address bit 6 |
| Chân 9 | A7 — Address bit 7 |
| Chân 10 | GND — Ground |
| Chân 11 | A8 — Address bit 8 |
| Chân 12 | A9 — Address bit 9 |
| Chân 13 | A10 — Address bit 10 |
| Chân 14 | A11 — Address bit 11 |
| Chân 15 | A12 — Address bit 12 |
| Chân 16 | A13 — Address bit 13 |
| Chân 17 | A14 — Address bit 14 |
| Chân 18 | A15 — Address bit 15 |
| Chân 19 | A16 — Address bit 16 |
| Chân 20 | A17 — Address bit 17 |
| Chân 21 | A18 — Address bit 18 |
| Chân 22 | A19 — Address bit 19 |
| Chân 23 | A20 — Address bit 20 |
| Chân 24 | A21 — Address bit 21 |
| Chân 25 | A22 — Address bit 22 |
| Chân 26 | GND — Ground |
| Chân 27 | A23 — Address bit 23 |
| Chân 28 | DSACK0 — Data Transfer Acknowledge 0 |
| Chân 29 | DSACK1 — Data Transfer Acknowledge 1 |
| Chân 30 | AVEC — Autovector Request |
| Chân 31 | BR — Bus Request |
| Chân 32 | BG — Bus Grant |
| Chân 33 | BGACK — Bus Grant Acknowledge |
| Chân 34 | RESET — Reset (active low) |
| Chân 35 | HALT — Halt (active low) |
| Chân 36 | VCC — +5V supply |
| Chân 37 | D0 — Data bit 0 |
| Chân 38 | D1 — Data bit 1 |
| Chân 39 | D2 — Data bit 2 |
| Chân 40 | D3 — Data bit 3 |
| Chân 41 | D4 — Data bit 4 |
| Chân 42 | D5 — Data bit 5 |
| Chân 43 | D6 — Data bit 6 |
| Chân 44 | D7 — Data bit 7 |
| Chân 45 | D8 — Data bit 8 |
| Chân 46 | D9 — Data bit 9 |
| Chân 47 | D10 — Data bit 10 |
| Chân 48 | D11 — Data bit 11 |
| Chân 49 | D12 — Data bit 12 |
| Chân 50 | D13 — Data bit 13 |
| Chân 51 | D14 — Data bit 14 |
| Chân 52 | D15 — Data bit 15 |
| Chân 53 | GND — Ground |
| Chân 54 | AS — Address Strobe (active low) |
| Chân 55 | DS — Data Strobe (active low) |
| Chân 56 | R/W — Read/Write (high = read) |
| Chân 57 | SIZ0 — Transfer Size 0 |
| Chân 58 | SIZ1 — Transfer Size 1 |
| Chân 59 | FC0 — Function Code 0 |
| Chân 60 | FC1 — Function Code 1 |
| Chân 61 | FC2 — Function Code 2 |
| Chân 62 | IRQ1 — Interrupt Request level 1 |
| Chân 63 | IRQ2 — Interrupt Request level 2 |
| Chân 64 | IRQ3 — Interrupt Request level 3 |
| Chân 65 | IRQ4 — Interrupt Request level 4 |
| Chân 66 | IRQ5 — Interrupt Request level 5 |
| Chân 67 | IRQ6 — Interrupt Request level 6 |
| Chân 68 | IRQ7 — Interrupt Request level 7 |
| Chân 69 | TCLK — Timer Clock Input |
| Chân 70 | TIN1 — Timer Input 1 |
| Chân 71 | TOUT1 — Timer Output 1 |
| Chân 72 | VCC — +5V supply |
| Chân 73 | TXD1 — Serial 1 Transmit Data |
| Chân 74 | RXD1 — Serial 1 Receive Data |
| Chân 75 | RTS1 — Serial 1 Request To Send |
| Chân 76 | CTS1 — Serial 1 Clear To Send |
| Chân 77 | TXD2 — Serial 2 Transmit Data |
| Chân 78 | RXD2 — Serial 2 Receive Data |
| Chân 79 | RTS2 — Serial 2 Request To Send |
| Chân 80 | CTS2 — Serial 2 Clear To Send |
| Chân 81 | DREQ0 — DMA Channel 0 Request |
| Chân 82 | DREQ1 — DMA Channel 1 Request |
| Chân 83 | DONE0 — DMA Channel 0 Done |
| Chân 84 | DONE1 — DMA Channel 1 Done |
| Chân 85 | GND — Ground |
| Chân 86 | CS0 — Chip Select 0 (programmable) |
| Chân 87 | CS1 — Chip Select 1 (programmable) |
| Chân 88 | CS2 — Chip Select 2 (programmable) |
| Chân 89 | CS3 — Chip Select 3 (programmable) |
| Chân 90 | CS4 — Chip Select 4 (programmable) |
| Chân 91 | CS5 — Chip Select 5 (programmable) |
| Chân 92 | CS6 — Chip Select 6 (programmable) |
| Chân 93 | CS7 — Chip Select 7 (programmable) |
| Chân 94 | WE0 — Write Enable 0 (Byte 0/1) |
| Chân 95 | WE1 — Write Enable 1 (Byte 2/3) |
| Chân 96 | OE — Output Enable |
| Chân 97 | VCC — +5V supply |
| Chân 98 | ADDR24 — Upper Address bit 24 |
| Chân 99 | ADDR25 — Upper Address bit 25 |
| Chân 100 | ADDR26 — Upper Address bit 26 |
| Chân 101 | ADDR27 — Upper Address bit 27 |
| Chân 102 | ADDR28 — Upper Address bit 28 |
| Chân 103 | ADDR29 — Upper Address bit 29 |
| Chân 104 | ADDR30 — Upper Address bit 30 |
| Chân 105 | ADDR31 — Upper Address bit 31 |
| Chân 106 | MODBUS0 — Module Bus 0 / DMA ack 0 |
| Chân 107 | MODBUS1 — Module Bus 1 / DMA ack 1 |
| Chân 108 | GND — Ground |
| Chân 109 | XTAL — Crystal oscillator / clock in |
| Chân 110 | EXTAL — External clock input |
| Chân 111 | CLKOUT — System clock output |
| Chân 112 | FREEZE — Freeze / Background (debug) |
| Chân 113 | RESET_OUT — Reset out (to peripherals) |
| Chân 114 | DATA_EN — External data buffer enable |
| Chân 115 | BS0 — Bus Start 0 |
| Chân 116 | BS1 — Bus Start 1 |
| Chân 117 | VCC — +5V supply |
| Chân 118 | IFETCH — Instruction Fetch / Pipe 1 status |
| Chân 119 | IC0 — Internal Control 0 |
| Chân 120 | IC1 — Internal Control 1 |
| Chân 121 | IC2 — Internal Control 2 |
| Chân 122 | TC0 — Timer Channel 0 |
| Chân 123 | TC1 — Timer Channel 1 |
| Chân 124 | TC2 — Timer Channel 2 |
| Chân 125 | TC3 — Timer Channel 3 |
| Chân 126 | GND — Ground |
| Chân 127 | WP0 — Write Protect 0 |
| Chân 128 | WP1 — Write Protect 1 |
| Chân 129 | WP2 — Write Protect 2 |
| Chân 130 | WP3 — Write Protect 3 |
| Chân 131 | WP4 — Write Protect 4 |
| Chân 132 | WP5 — Write Protect 5 |
| Chân 133 | WP6 — Write Protect 6 |
| Chân 134 | WP7 — Write Protect 7 |
| 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 | VCC — +5V supply |
| 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 | GND — Ground |
Ứng dụng tiêu biểu
MC68340CAG16E phù hợp cho 6 Áp dụngs: Industrial Process Controllers, Telecommunications Equipment, Point-of-Sale (POS) Terminals, Factory Automation and Robotics, Medical Instrumentation (Legacy Maintenance), Embedded Networking Devices.
Industrial Process Controllers
The MC68340CAG16E fits industrial process controllers because its CPU32 core runs 32-bit CISC code at 16 MHz while interfacing to lower-cost 16-bit memory, and its integrated 2-channel 32-bit DMA offloads deterministic data movement to/from sensor buffers without CPU intervention. The on-chip System Integration Block generates programmable chip-selects and wait states for interfacing to SRAM/DRAM and industrial I/O peripherals, reducing BOM count. The 144-LQFP footprint supports reflow assembly on standard SMT lines used in industrial PCBA. For PLC-style automation, the device balances deterministic 16 MHz operation with M68000 object-code portability from legacy controller code. Note the EOL status: long-term production should rely on Rochester Electronics or qualified aftermarket suppliers.
Được đề xuất
Telecommunications Equipment
The MC68340CAG16E suits telecom equipment because the CPU32 core is object-code compatible with the M68000 architecture used in legacy telecom designs, and the Dual Serial Module (UART/USART) provides two serial channels commonly needed for telecom control-plane communications. The 32-bit DMA engine drives sustained data movement between serial FIFOs and memory with predictable timing, which is critical for telecom framing. The 144-LQFP package is a long-standing telecom board footprint, enabling in-place substitution when components become obsolete. The 'E' suffix indicates RoHS-compliant lead-free build suitable for modern telecom platforms. For new designs, NXP ColdFire parts are recommended, but the MC68340 remains acceptable for maintenance of legacy systems through authorized distributor channels.
Được đề xuất
Point-of-Sale (POS) Terminals
The MC68340CAG16E serves POS terminal main boards because its integration of CPU32, dual-channel 32-bit DMA, two serial ports, and a 16-bit timer in a single 144-LQFP package cuts the part count and board area needed for a POS controller. The 16 MHz clock is adequate for transaction processing, while DMA handles printer data streams and serial peripherals without CPU overhead. The 5V supply matches legacy POS power rails. The 'E' (RoHS/lead-free) suffix enables compliance with current EU regulations for retail equipment. The MC68340 family has been deployed in POS systems for decades, so supply-chain maturity and software reuse are well-established. With End-of-Life announced, retailers should plan multi-year spares via authorized suppliers.
Được đề xuất
Factory Automation and Robotics
The MC68340CAG16E applies to factory automation because the CPU32 core at 16 MHz executes deterministic control loops, while the 2-channel DMA and 16-bit timer integrate motion-control data acquisition without external glue logic. The System Integration Block generates chip-select signals to interface to ADC/DAC converters and motor-driver peripherals typical in industrial robot controllers. The 144-LQFP package withstands standard factory reflow and includes the exposed thermal pad option for better heat dissipation at higher clock rates. Real-time responsiveness is guaranteed since M68000-family cores have well-known interrupt latency profiles. For modernization projects, the MC68340 remains a viable building block - especially when reusing existing M68000 software - although new designs should evaluate ColdFire successors.
Được đề xuất
Medical Instrumentation (Legacy Maintenance)
The MC68340CAG16E is well suited to legacy medical instrument maintenance because many regulatory-cleared designs from the late 1990s and 2000s use the MC68340 platform, and its M68000 object-code compatibility allows straightforward firmware reuse. The 5V supply matches legacy analog front-end rails, while the integrated DMA and timers drive ultrasound or patient-monitoring data paths. RoHS/lead-free compliance (the 'E' suffix) supports compliance for medical devices distributed globally. As the part is now in End-of-Life per NXP, medical OEM service organizations should leverage Rochester Electronics or qualified aftermarket suppliers for multi-decade spare-part provisioning. Verification of RoHS documentation and traceability records remains essential for FDA/IEC 60601-compliance maintenance.
Được đề xuất
Embedded Networking Devices
The MC68340CAG16E fits embedded networking devices because the dual DMA channels can simultaneously service inbound packet buffers and outbound serial links while the CPU32 executes protocol state machines at 16 MHz. The Dual Serial Module provides two UART/USART channels for RS-232/RS-485 modem or console interfaces common in network equipment front panels. The 144-LQFP package enables compact board layouts typical of mid-range routers and gateways. The M68000 object-code compatibility supports legacy code reuse from previous generation embedded networking designs. ColdFire successors are recommended for new designs, but the MC68340 remains a reliable workhorse for legacy gateway and router SKUs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68340CAG16E — 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 | MC68340CAG20E | MC68340CAG25E | MC68331CAG16 | MC68340CAG16 | MC68340CFC16E |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (legacy process) | NXP Semiconductors |
| Package | 144-LQFP | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Operating Frequency | 16 MHz | 20 MHz (+25%) | 25 MHz (+56%) | 16 MHz (same) | 16 MHz (same) | 16 MHz (same) |
| Core Architecture | CPU32 (M68000) | CPU32 (same) | CPU32 (same) | CPU32 (same) | CPU32 (same) | CPU32 (same) |
| DMA Channels | 2 x 32-bit DMA | 2 x 32-bit DMA (same) | 2 x 32-bit DMA (same) | No DMA block | 2 x 32-bit DMA (same) | 2 x 32-bit DMA (same) |
| Supply Voltage | 5 V | 5 V (same) | 5 V (same) | 5 V (same) | 5 V (same) | 5 V (same) |
| RoHS / Lead Free | RoHS Compliant (E suffix) | RoHS Compliant (E suffix) | RoHS Compliant (E suffix) | RoHS Compliant | Non-E lead-free legacy (compatibility differs) | RoHS Compliant (E suffix) |
Bảo phân biệt quan trọng
- Integrated dual-channel 32-bit DMA on the M68000 core (vsMC68331CAG16)
- Mainstream 16 MHz speed grade with full RoHS compliance (vsMC68340CAG16 (legacy non-E variant))
- M68000 object-code compatibility preserved (vsColdFire successors (e.g. MCF5208))
Ghi chú thiết kế
Estimated: At 5V supply, 16 MHz, the MC68340CAG16E core can draw on the order of 80-150 mA active current under typical workloads. Power dissipation therefore ranges roughly 0.4-0.75 W, well within the 144-LQFP thermal envelope. For designs operating at the upper 25 MHz speed grade (MC68340CAG25E), re-evaluate thermal headroom and provide copper pours on inner PCB layers if the device is mounted near other heat sources. The 144-LQFP offers reasonable thermal resistance but no exposed pad.
Place decoupling capacitors (0.1 uF ceramic in parallel with 10 uF tantalum or electrolytic) within 5 mm of each VCC/GND pin pair to suppress switching noise. The 144-LQFP package has VCC/GND pins distributed around the periphery - take advantage of multiple supply pins by connecting each to its own local decoupling network. Keep high-speed signals (R/W, AS, DS, DSACKx) routed short with a ground reference plane to preserve bus timing margins. The MC68340 family has well-defined bus timing; consult the NXP MC68340 user manual for AC specification setup/hold times.
Do not confuse the MC68340CAG16E (with DMA) with the MC68331CAG16 (no DMA block). Both share the same 144-LQFP footprint but the on-chip peripheral set differs in DMA - software that relies on the DMA channels of the MC68340 will not work on the MC68331. Also verify the 'E' suffix (lead-free / RoHS) versus legacy 'non-E' (non-RoHS) variants when sourcing for compliant products. The MSL 3 floor life of 168 hours means dry-pack handling is required for SMD assembly; bake the part before reflow if moisture exposure exceeds the floor life.
The 144-LQFP lead pitch is 0.5 mm - PCB land patterns must follow IPC-7351 nominal-density footprints with a 0.3 mm stencil aperture for solder paste. Traces exiting the pin field should be designed with controlled impedance to avoid reflections on the external bus. The MC68340 can interface to 8-bit or 16-bit external data ports; whichever you choose, route the upper byte strobes (DSACK0/DSACK1) and byte-write enables (WE0/WE1) with matched lengths. A solid ground plane beneath the part helps both power integrity and EMI.
The MC68340CAG16E's external memory bus uses a multiplexed address/data protocol only when DSACK is asserted externally; in many designs the bus is demulted with latches. Keep the address/data traces short and parallel for matched impedance. If your design drives long memory backplanes, add bus buffers to stay within the MC68340's drive capability. RESET and HALT pins are open-drain on many configurations - wire these with external pullups to 5V. For system bring-up, monitor the reset-time AC specification (typically 1.5 CPU clocks minimum).
Thông tin tuân thủ
RoHS compliant and lead free per Digchip and Rochester Electronics listings. REACH Unaffected per GlobalSpec Rochester Electronics product details. AEC-Q100 not applicable - this is a processor IC, not an automotive-grade part. Halogen-free and conflict-minerals status not explicitly stated in the verified data.