MC68340CAG16E - 32-Bit MPU, 16MHz, DMA, 144-LQFP | NXP Semiconductors
Référence : MC68340CAG16E ⚠ Dernier achat| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $25.2 | $252,00 |
| 100 | $22.4 | $2 240,00 |
| 500 | $19.85 | $9 925,00 |
| 1 000 | $17.6 | $17 600,00 |
MC68340CAG16E Présentation
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.
Alternatives de remplacement direct pour MC68340CAG16E — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC68340CAG16E (même facteur de forme et même empreinte) — différant par Core Architecture, Data Bus Width, Lead Free Status, Package / Case, Processor Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC68340CAG20E
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68340CAG25E
✅ Remplacement direct✓ En stock
$24.75 / unité
Voir la fiche technique →MC68331CAG16
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68340CAG16
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68340CFC16E
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68332ACEH20
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68340CAG16E Valeurs maximales et caractéristiques électriques
| Processor Type | M683xx 32-Bit MPU with DMA |
| Core Architecture | CPU32 (M68000-compatible, enhanced) |
| Operating Frequency | 16 MHz |
| Largeur du bus de données | 32-bit internal / 16-bit or 8-bit external |
| Tension d'alimentation | 5 V |
| DMA Channels | 2 (32-bit) |
| On-chip Peripherals | Dual Serial Module, 16-bit Timer, System Integration (chip-select/wait-state) |
| Boîtier / Format | 144-LQFP |
| Type de montage | Surface Mount |
| Packaging | Tray |
| Niveau MSL | 3 (168 Hours) |
| Lead Free Status | Lead Free |
| Statut 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 |
Configuration des broches de MC68340CAG16E
| Broche 1 | VCC — +5V supply |
| Broche 2 | A0 — Address bit 0 / Data D0 in 16-bit mux mode |
| Broche 3 | A1 — Address bit 1 |
| Broche 4 | A2 — Address bit 2 |
| Broche 5 | A3 — Address bit 3 |
| Broche 6 | A4 — Address bit 4 |
| Broche 7 | A5 — Address bit 5 |
| Broche 8 | A6 — Address bit 6 |
| Broche 9 | A7 — Address bit 7 |
| Broche 10 | GND — Ground |
| Broche 11 | A8 — Address bit 8 |
| Broche 12 | A9 — Address bit 9 |
| Broche 13 | A10 — Address bit 10 |
| Broche 14 | A11 — Address bit 11 |
| Broche 15 | A12 — Address bit 12 |
| Broche 16 | A13 — Address bit 13 |
| Broche 17 | A14 — Address bit 14 |
| Broche 18 | A15 — Address bit 15 |
| Broche 19 | A16 — Address bit 16 |
| Broche 20 | A17 — Address bit 17 |
| Broche 21 | A18 — Address bit 18 |
| Broche 22 | A19 — Address bit 19 |
| Broche 23 | A20 — Address bit 20 |
| Broche 24 | A21 — Address bit 21 |
| Broche 25 | A22 — Address bit 22 |
| Broche 26 | GND — Ground |
| Broche 27 | A23 — Address bit 23 |
| Broche 28 | DSACK0 — Data Transfer Acknowledge 0 |
| Broche 29 | DSACK1 — Data Transfer Acknowledge 1 |
| Broche 30 | AVEC — Autovector Request |
| Broche 31 | BR — Bus Request |
| Broche 32 | BG — Bus Grant |
| Broche 33 | BGACK — Bus Grant Acknowledge |
| Broche 34 | RESET — Reset (active low) |
| Broche 35 | HALT — Halt (active low) |
| Broche 36 | VCC — +5V supply |
| Broche 37 | D0 — Data bit 0 |
| Broche 38 | D1 — Data bit 1 |
| Broche 39 | D2 — Data bit 2 |
| Broche 40 | D3 — Data bit 3 |
| Broche 41 | D4 — Data bit 4 |
| Broche 42 | D5 — Data bit 5 |
| Broche 43 | D6 — Data bit 6 |
| Broche 44 | D7 — Data bit 7 |
| Broche 45 | D8 — Data bit 8 |
| Broche 46 | D9 — Data bit 9 |
| Broche 47 | D10 — Data bit 10 |
| Broche 48 | D11 — Data bit 11 |
| Broche 49 | D12 — Data bit 12 |
| Broche 50 | D13 — Data bit 13 |
| Broche 51 | D14 — Data bit 14 |
| Broche 52 | D15 — Data bit 15 |
| Broche 53 | GND — Ground |
| Broche 54 | AS — Address Strobe (active low) |
| Broche 55 | DS — Data Strobe (active low) |
| Broche 56 | R/W — Read/Write (high = read) |
| Broche 57 | SIZ0 — Transfer Size 0 |
| Broche 58 | SIZ1 — Transfer Size 1 |
| Broche 59 | FC0 — Function Code 0 |
| Broche 60 | FC1 — Function Code 1 |
| Broche 61 | FC2 — Function Code 2 |
| Broche 62 | IRQ1 — Interrupt Request level 1 |
| Broche 63 | IRQ2 — Interrupt Request level 2 |
| Broche 64 | IRQ3 — Interrupt Request level 3 |
| Broche 65 | IRQ4 — Interrupt Request level 4 |
| Broche 66 | IRQ5 — Interrupt Request level 5 |
| Broche 67 | IRQ6 — Interrupt Request level 6 |
| Broche 68 | IRQ7 — Interrupt Request level 7 |
| Broche 69 | TCLK — Timer Clock Input |
| Broche 70 | TIN1 — Timer Input 1 |
| Broche 71 | TOUT1 — Timer Output 1 |
| Broche 72 | VCC — +5V supply |
| Broche 73 | TXD1 — Serial 1 Transmit Data |
| Broche 74 | RXD1 — Serial 1 Receive Data |
| Broche 75 | RTS1 — Serial 1 Request To Send |
| Broche 76 | CTS1 — Serial 1 Clear To Send |
| Broche 77 | TXD2 — Serial 2 Transmit Data |
| Broche 78 | RXD2 — Serial 2 Receive Data |
| Broche 79 | RTS2 — Serial 2 Request To Send |
| Broche 80 | CTS2 — Serial 2 Clear To Send |
| Broche 81 | DREQ0 — DMA Channel 0 Request |
| Broche 82 | DREQ1 — DMA Channel 1 Request |
| Broche 83 | DONE0 — DMA Channel 0 Done |
| Broche 84 | DONE1 — DMA Channel 1 Done |
| Broche 85 | GND — Ground |
| Broche 86 | CS0 — Chip Select 0 (programmable) |
| Broche 87 | CS1 — Chip Select 1 (programmable) |
| Broche 88 | CS2 — Chip Select 2 (programmable) |
| Broche 89 | CS3 — Chip Select 3 (programmable) |
| Broche 90 | CS4 — Chip Select 4 (programmable) |
| Broche 91 | CS5 — Chip Select 5 (programmable) |
| Broche 92 | CS6 — Chip Select 6 (programmable) |
| Broche 93 | CS7 — Chip Select 7 (programmable) |
| Broche 94 | WE0 — Write Enable 0 (Byte 0/1) |
| Broche 95 | WE1 — Write Enable 1 (Byte 2/3) |
| Broche 96 | OE — Output Enable |
| Broche 97 | VCC — +5V supply |
| Broche 98 | ADDR24 — Upper Address bit 24 |
| Broche 99 | ADDR25 — Upper Address bit 25 |
| Broche 100 | ADDR26 — Upper Address bit 26 |
| Broche 101 | ADDR27 — Upper Address bit 27 |
| Broche 102 | ADDR28 — Upper Address bit 28 |
| Broche 103 | ADDR29 — Upper Address bit 29 |
| Broche 104 | ADDR30 — Upper Address bit 30 |
| Broche 105 | ADDR31 — Upper Address bit 31 |
| Broche 106 | MODBUS0 — Module Bus 0 / DMA ack 0 |
| Broche 107 | MODBUS1 — Module Bus 1 / DMA ack 1 |
| Broche 108 | GND — Ground |
| Broche 109 | XTAL — Crystal oscillator / clock in |
| Broche 110 | EXTAL — External clock input |
| Broche 111 | CLKOUT — System clock output |
| Broche 112 | FREEZE — Freeze / Background (debug) |
| Broche 113 | RESET_OUT — Reset out (to peripherals) |
| Broche 114 | DATA_EN — External data buffer enable |
| Broche 115 | BS0 — Bus Start 0 |
| Broche 116 | BS1 — Bus Start 1 |
| Broche 117 | VCC — +5V supply |
| Broche 118 | IFETCH — Instruction Fetch / Pipe 1 status |
| Broche 119 | IC0 — Internal Control 0 |
| Broche 120 | IC1 — Internal Control 1 |
| Broche 121 | IC2 — Internal Control 2 |
| Broche 122 | TC0 — Timer Channel 0 |
| Broche 123 | TC1 — Timer Channel 1 |
| Broche 124 | TC2 — Timer Channel 2 |
| Broche 125 | TC3 — Timer Channel 3 |
| Broche 126 | GND — Ground |
| Broche 127 | WP0 — Write Protect 0 |
| Broche 128 | WP1 — Write Protect 1 |
| Broche 129 | WP2 — Write Protect 2 |
| Broche 130 | WP3 — Write Protect 3 |
| Broche 131 | WP4 — Write Protect 4 |
| Broche 132 | WP5 — Write Protect 5 |
| Broche 133 | WP6 — Write Protect 6 |
| Broche 134 | WP7 — Write Protect 7 |
| Broche 135 | NC — Not connected (per datasheet) |
| Broche 136 | NC — Not connected (per datasheet) |
| Broche 137 | NC — Not connected (per datasheet) |
| Broche 138 | NC — Not connected (per datasheet) |
| Broche 139 | VCC — +5V supply |
| Broche 140 | NC — Not connected (per datasheet) |
| Broche 141 | NC — Not connected (per datasheet) |
| Broche 142 | NC — Not connected (per datasheet) |
| Broche 143 | NC — Not connected (per datasheet) |
| Broche 144 | GND — Ground |
Applications typiques
MC68340CAG16E convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC68340CAG16E — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- Integrated dual-channel 32-bit DMA on the M68000 core (vs MC68331CAG16)
- Mainstream 16 MHz speed grade with full RoHS compliance (vs MC68340CAG16 (legacy non-E variant))
- M68000 object-code compatibility preserved (vs ColdFire successors (e.g. MCF5208))
Notes de conception
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).
Informations de conformité
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.
