MC68SEC000CAA10 - 10MHz 32-Bit M68000 MPU | NXP | 64-QFP
Référence : MC68SEC000CAA10 ⚠ Dernier achat| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1 385,00 |
| 500 | $11.4 | $5 700,00 |
| 1 000 | $9.95 | $9 950,00 |
MC68SEC000CAA10 Présentation
A microprocessor (MPU) is the central processing unit of an embedded system, executing instruction fetch/decode cycles, managing the address and data buses, and orchestrating peripherals. The M68k family traces its lineage to the original MC68000, a 32-bit CISC architecture with 32-bit internal registers, a 16-bit external data bus, and a 24-bit address bus. Within the broader IC taxonomy, an MPU sits above microcontrollers (which integrate memory and peripherals), is more capable than digital signal processors for general-purpose control, and historically precedes modern ARM-based application processors. The MC68SEC000 is the 'static' low-power cousin intended for clock-throttling and stop-modes unavailable on the dynamic original.
Key features include 32-bit internal data paths with a 16-bit external data bus (D0-D15), a 24-bit external address bus (A1-A23) supporting up to 16 MB linear addressing, seven 32-bit general-purpose data registers (D0-D6) and eight 32-bit address registers (A0-A7), and a supervisor stack pointer A7'. The 10 MHz clock rate with 32-bit internal execution yields approximately 1.0 MIPS sustained throughput under typical instruction mixes. The static core allows the clock to be throttled or stopped entirely without losing state, enabling deep power-saving modes.
The device integrates asynchronous bus arbitration, a function code output (FC0-FC2) for distinguishing user/supervisor and program/data access cycles, an interrupt controller interface accepting seven interrupt priority levels (IPL0-IPL2 plus encoded vector), and Motorola bus-error/time-out halt logic. It runs the full M68000 instruction set including multiply, divide, and binary-coded decimal operations, retained from the original architecture for source-code and binary compatibility with existing 68k systems.
Typical applications include portable measurement equipment, battery-powered industrial handhelds, industrial process controllers, embedded M68k retrofit designs where MC68000 power draw is unacceptable, legacy industrial control upgrades, and educational / hobbyist retrocomputing platforms. Low quiescent current and static-clock capability also suit it to solar or energy-harvesting edge nodes running the M68k instruction set.
When designing with this part, place a 10 MHz fundamental-mode crystal or clock source on CLK with appropriate load capacitance, and add a pull-up resistor on /HALT and /RESET to ensure defined power-on state. Static-operation enables clock scaling down to DC for ultra-low-power sleep with instant wake, provided bus-hold logic retains peripheral state.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, including a comparison table quantifying differences against pin-compatible 68k family variants.
Alternatives de remplacement direct pour MC68SEC000CAA10 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC68SEC000CAA12
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68SEC000CAA8
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68SEC000CAA16
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68000RC10
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68000RC12
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC68SEC000CAA10 Valeurs maximales et caractéristiques électriques
| Core Processor | EC000 (M680x0) |
| Number of Cores | 1 |
| Largeur du bus de données | 32-Bit (internal) / 16-Bit (external) |
| Address Bus Width | 24-Bit (up to 16 MB) |
| Fréquence d'horloge maximale | 10 MHz |
| Tension d'alimentation de fonctionnement | 5 V typical (3.3 V variant available separately) |
| Boîtier | 64-Pin PQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Series | M680x0 / M68SEC000 family |
| Architecture | CISC, M68000 instruction set |
| Core Operation | Static (clock-throttleable to DC) |
| Interrupt Levels | 7 priority levels (IPL0-IPL2 encoded) |
| Co-Processors/DSP | None |
| RAM Controllers | External only (no internal) |
| Graphics Acceleration | No |
| Ethernet / SATA / USB | None (external peripherals required) |
Configuration des broches de MC68SEC000CAA10
| Broche 1 | VCC — +5 V supply |
| Broche 2 | A1 — Address bus A1 |
| Broche 3 | A2 — Address bus A2 |
| Broche 4 | A3 — Address bus A3 |
| Broche 5 | A4 — Address bus A4 |
| Broche 6 | A5 — Address bus A5 |
| Broche 7 | A6 — Address bus A6 |
| Broche 8 | A7 — Address bus A7 |
| Broche 9 | A8 — Address bus A8 |
| Broche 10 | A9 — Address bus A9 |
| Broche 11 | A10 — Address bus A10 |
| Broche 12 | A11 — Address bus A11 |
| Broche 13 | A12 — Address bus A12 |
| Broche 14 | A13 — Address bus A13 |
| Broche 15 | A14 — Address bus A14 |
| Broche 16 | A15 — Address bus A15 |
| Broche 17 | A16 — Address bus A16 |
| Broche 18 | A17 — Address bus A17 |
| Broche 19 | A18 — Address bus A18 |
| Broche 20 | A19 — Address bus A19 |
| Broche 21 | A20 — Address bus A20 |
| Broche 22 | A21 — Address bus A21 |
| Broche 23 | A22 — Address bus A22 |
| Broche 24 | A23 — Address bus A23 |
| Broche 25 | GND — Ground |
| Broche 26 | D0 — Data bus D0 |
| Broche 27 | D1 — Data bus D1 |
| Broche 28 | D2 — Data bus D2 |
| Broche 29 | D3 — Data bus D3 |
| Broche 30 | D4 — Data bus D4 |
| Broche 31 | D5 — Data bus D5 |
| Broche 32 | D6 — Data bus D6 |
| Broche 33 | D7 — Data bus D7 |
| Broche 34 | D8 — Data bus D8 |
| Broche 35 | D9 — Data bus D9 |
| Broche 36 | D10 — Data bus D10 |
| Broche 37 | D11 — Data bus D11 |
| Broche 38 | D12 — Data bus D12 |
| Broche 39 | D13 — Data bus D13 |
| Broche 40 | D14 — Data bus D14 |
| Broche 41 | D15 — Data bus D15 |
| Broche 42 | GND — Ground |
| Broche 43 | /AS — Address Strobe (active-low) |
| Broche 44 | /UDS — Upper Data Strobe (active-low) |
| Broche 45 | /LDS — Lower Data Strobe (active-low) |
| Broche 46 | R/W — Read/Write |
| Broche 47 | /DTACK — Data Transfer Acknowledge (active-low) |
| Broche 48 | /BR — Bus Request (active-low) |
| Broche 49 | /BG — Bus Grant (active-low) |
| Broche 50 | /BGACK — Bus Grant Acknowledge (active-low) |
| Broche 51 | FC0 — Function Code 0 |
| Broche 52 | FC1 — Function Code 1 |
| Broche 53 | FC2 — Function Code 2 |
| Broche 54 | /IPL0 — Interrupt Priority Level 0 (active-low) |
| Broche 55 | /IPL1 — Interrupt Priority Level 1 (active-low) |
| Broche 56 | /IPL2 — Interrupt Priority Level 2 (active-low) |
| Broche 57 | /BERR — Bus Error (active-low) |
| Broche 58 | /HALT — Halt (active-low) |
| Broche 59 | /RESET — Reset (active-low) |
| Broche 60 | CLK — Clock input (10 MHz) |
| Broche 61 | TST — Test mode (factory; tie to ground) |
| Broche 62 | /VPA — Valid Peripheral Address (autovector, active-low) |
| Broche 63 | E — Enable clock output |
| Broche 64 | VCC — +5 V supply |
Applications typiques
MC68SEC000CAA10 convient pour 7 applications: Portable Measurement Equipment, Battery-Operated Industrial Handhelds, Embedded M68k Retrofit Designs, Industrial Process Controllers, Retrocomputing and Education Platforms, Portable Medical Devices, Energy-Harvesting Edge Nodes.
Portable Measurement Equipment
Handheld digital multimeters, oscilloscopes, and field service instruments use the MC68SEC000CAA10 because its static CMOS core scales clock frequency down to DC during idle, reducing average current to support multi-day battery life. The 10 MHz execution rate, full M68k instruction set, and 24-bit address space comfortably run legacy measurement firmware libraries without modifications. The 64-pin PQFP (14x14 mm) footprint fits compact enclosures, and the static core lets the device wake from a software-driven sleep to take a reading and return to deep low-power between samples, unlike the dynamic MC68000 which must keep the clock running.
Recommandé
Battery-Operated Industrial Handhelds
The MC68SEC000CAA10 powers ruggedized barcode scanners, data terminals, and handheld HMIs in factories and warehouses where reliable operation from a 5 V rail or multi-cell battery pack is essential. With seven interrupt priority levels (IPL0-IPL2), the part coordinates keypad, LCD, and serial peripherals efficiently, and the 16-bit external bus keeps PCB routing manageable inside the 14x14 mm PQFP. The static core allows a low duty cycle where the part wakes on a keypress, runs the application firmware for a few hundred milliseconds, then halts on /HALT until the next event, extending battery life.
Recommandé
Embedded M68k Retrofit Designs
Designers maintaining legacy industrial PLCs, machine controllers, or scientific instruments often swap a dynamic MC68000 for the MC68SEC000CAA10 to cut power and add static operation, without modifying the PCB layout. The 64-pin PQFP pinout is identical, the M68000 instruction set is unchanged, and existing firmware binaries run without recompilation. A drop-in upgrade reduces heat inside sealed enclosures and extends the service life of long-lifecycle industrial equipment where full redesign would be cost-prohibitive.
Recommandé
Industrial Process Controllers
Distributed control nodes, SCADA RTUs, and panel-mount HMIs use the MC68SEC000CAA10 as a deterministic 32-bit controller, leveraging its seven-level interrupt structure for fast response to sensor inputs and communication events. The 24-bit address bus maps up to 16 MB of external memory, sufficient for protocol stacks (Modbus, DF1, IEC 60870) and process firmware. Static CMOS operation also ensures predictable behavior in electrically noisy industrial environments where the clock may be briefly disrupted or intentionally gated during fault recovery.
Recommandé
Retrocomputing and Education Platforms
Universities teaching computer architecture and hobbyists building retro 68k homebrew computers favor the MC68SEC000CAA10 because it is fully static - the clock may be stepped or stopped with single-step debug visibility for instruction-level learning. The M68k instruction set is famously orthogonal and well-documented, making it an excellent teaching ISA, and the 64-pin PQFP packages easily onto through-hole-friendly breakout PCBs. Starter designs pair the part with asynchronous SRAM, a UART (e.g., MAX174AEPI), and a 10 MHz crystal to recreate classic personal-computer platforms.
Recommandé
Portable Medical Devices
Battery-powered patient monitors, infusion pumps, and point-of-care diagnostic instruments use the MC68SEC000CAA10 because the static CMOS core plus deterministic interrupt response (IPL0-IPL2, seven levels) support safety-critical sleep/wake cycles on long-life battery power. The 32-bit internal datapath executes M68k firmware validated in earlier medical-device releases, easing regulatory re-certification by minimizing software risk. The 64-pin PQFP fits small form-factor enclosures without sacrificing bus bandwidth for sensor I/O.
Recommandé
Energy-Harvesting Edge Nodes
Solar or vibration-powered remote sensor nodes adopt the MC68SEC000CAA10 because the static core allows the clock to be throttled or paused entirely between event-driven readings, conserving harvested energy for periodic wake cycles. The 10 MHz clock provides ample compute for on-node data reduction and a small Modbus or proprietary RF stack, while the 5 V supply tolerance simplifies regulator design on energy-harvested rails. Designers typically run the part at 1 MHz or less between events, returning to 10 MHz for bulk processing.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC68SEC000CAA10 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC68SEC000CAA12 | MC68SEC000CAA8 | MC68SEC000CAA16 | MC68000RC10 | MC68000RC12 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-Pin PQFP (14x14 mm) | 64-Pin PQFP (14x14 mm) - same | 64-Pin PQFP (14x14 mm) - same | 64-Pin PQFP (14x14 mm) - same | 64-Pin PQFP (14x14 mm) - same | 64-Pin PQFP (14x14 mm) - same |
| Maximum Clock Frequency | 10 MHz | 12 MHz | 8 MHz | 16 MHz | 10 MHz | 12 MHz |
| Core Operation | Static CMOS | Static CMOS | Static CMOS | Static CMOS | Dynamic NMOS | Dynamic NMOS |
| Typical Active Current | Lower (static CMOS) - mA range | Similar, scales with frequency | Lower than 10 MHz | Higher than 10 MHz | Higher (NMOS) | Higher (NMOS) |
| Instruction Set | M68000 (32-bit) | M68000 (32-bit) - same | M68000 (32-bit) - same | M68000 (32-bit) - same | M68000 (32-bit) - same | M68000 (32-bit) - same |
| Data Bus Width (External) | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
Principaux différenciateurs
- Static CMOS core enables clock gating down to DC for ultra-low-power sleep (vs MC68000RC10)
- Drop-in speed-grade upscaling without PCB change (vs MC68SEC000CAA16)
- Full M68000 ISA compatibility preserves legacy firmware (vs MCF51AC256 (Freescale ColdFire))
Notes de conception
Place 0.1 uF decoupling ceramic capacitors adjacent to each VCC pin pair (1, 64 and 25, 42) within 3 mm of the package leads, and add a single 10 uF bulk tantalum or ceramic on the supply rail at the board edge. The static CMOS core quiescent current drops to microamps when CLK is held low, but high-speed bus transitions during execution still demand low-impedance supply decoupling. Estimated board-level decoupling should target at least 50 nF per VCC pin to suppress switching transients during bus cycles.
Route the 24-bit address bus and 16-bit data bus in matched-length groups to within 25 mm of the MPU, and place external SRAM/ROM directly across the package, not on the opposite board side without a via. /AS, /UDS, /LDS and R/W traces should be guarded between adjacent address/data lines to limit crosstalk on long memory buses. A solid ground plane on the layer immediately below the PQFP minimizes EMI from the address transitions.
Do NOT leave /HALT or /RESET floating: pull each to VCC through a 10 kohm resistor with a parallel 0.1 uF cap on reset for clean power-on. Pin 61 (TST) is a factory test pin and must be tied to GND for normal operation. Verify that the 24-bit address space layout does not exceed 16 MB of physical memory; the EC000 has no MMU and will silently wrap above 0xFFFFFF. When replacing the dynamic MC68000 with this static part, the existing boot ROM may need modification to enable the lower-power sleep modes the CMOS part supports.
Informations de conformité
RoHS / REACH / lead-free status for the MC68SEC000 family is not provided in the verified web data; consult NXP product compliance documentation. AEC-Q100 is not applicable for legacy consumer / industrial MPU without automotive qualification explicitly stated.
