AT89C51CC01UA-SLSUM - 8-bit CAN MCU, 32KB Flash, 40MHz, PLCC-44 | Microchip
Référence : AT89C51CC01UA-SLSUM ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.5 | $8,50 |
| 10 | $7.65 | $76,50 |
| 100 | $6.8 | $680,00 |
| 500 | $6.1 | $3 050,00 |
| 1 000 | $5.45 | $5 450,00 |
AT89C51CC01UA-SLSUM Présentation
A CAN microcontroller is a microcontroller that integrates a hardware Controller Area Network (CAN) peripheral on-chip, allowing the device to communicate directly on CAN bus segments used in automotive, industrial, and building-automation networks. The AT89C51CC01UA belongs to the broader 8051 (MCS-51) family, which is one of the longest-lived 8-bit MCU architectures; devices in this hierarchy range from bare 8051 cores through 8051 derivatives, embedded microcontrollers, and on to system-on-chip devices that integrate peripherals such as CAN, ADC, and PWM.
Key features include a fully static 8051 core, 32 programmable I/O lines, three-level program memory lock for code protection, an endurance rating of 1,000 write/erase cycles per Flash sector, hardware CAN 2.0B controller, ISP/IAP via bootloader, and an industrial operating temperature range of -40 C to +85 C. The PLCC-44 package provides a robust through-hole-style surface-mount footprint that is easy to prototype with standard PLCC sockets.
Typical applications include automotive body and chassis ECUs, industrial CAN-based sensor/actuator nodes, HVAC control modules, building-automation gateways, and CAN-to-UART bridges. The integrated CAN peripheral is one of the three most differentiated capabilities of this device, making it attractive in designs that need a single-chip CAN node without an external CAN controller.
When designing with the AT89C51CC01UA, ensure the oscillator circuit follows the manufacturer reference design and that adequate decoupling (typically 100 nF ceramic per VCC pair plus bulk 10 uF) is placed close to the supply pins. The PLCC-44 socket should be of the proper polarization type to avoid pin reversal damage during field service.
This page synthesizes verified distributor data, drop-in compatible parametric and behavioral notes, and engineering design considerations not found in the manufacturer datasheet. Pricing is shown as of 2026-10-07 and reflects real-time inventory from authorized distributors.
Alternatives de remplacement direct pour AT89C51CC01UA-SLSUM — 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 AT89C51CC01UA-SLSUM (même facteur de forme et même empreinte) — différant par Core Architecture, Mounting Type, Operating Temperature, Operating Voltage, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
AT89C51CC03UA-SLSUM
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AT89C51ED2-SLSUM
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AT89C51AC2-SLSUM
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AT89C51RD2-SLSUM
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Voir la fiche technique →AT89C51ID2-SLSIM
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AT89LP51RC2-20JU
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AT89C51CC01UA-SLSUM Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit Microcontroller with CAN Controller |
| Core Architecture | 80C51 (8051) AT89C |
| Core Subfamily | MCS-51 / 8051 family |
| Fréquence d'horloge maximale | 40 MHz (X2 mode: 20 MHz) |
| Program Flash Memory | 32 KB (32K x 8) |
| Boot Flash Memory | 2 KB |
| Data EEPROM | 2 KB |
| Internal RAM | 1.2 KB |
| Programmable I/O Lines | 32 |
| Program Memory Lock | 3-level |
| Flash Write/Erase Endurance | 1,000 cycles |
| CAN Controller | Hardware CAN 2.0B on-chip |
| Operating Voltage | 3.0 V to 5.5 V |
| Température de fonctionnement | -40 C to +85 C (Industrial) |
| Boîtier | 44-pin PLCC (16.6 x 16.6 mm) |
| Type de montage | Surface Mount (PLCC) |
| Statut RoHS | Compliant |
Configuration des broches de AT89C51CC01UA-SLSUM
| Broche 1 | P1.0/T2 — Port 1 bit 0 / Timer 2 external input |
| Broche 2 | P1.1/T2EX — Port 1 bit 1 / Timer 2 trigger |
| Broche 3 | P1.2 — Port 1 bit 2 |
| Broche 4 | P1.3 — Port 1 bit 3 |
| Broche 5 | P1.4 — Port 1 bit 4 |
| Broche 6 | P1.5 — Port 1 bit 5 |
| Broche 7 | P1.6 — Port 1 bit 6 |
| Broche 8 | P1.7 — Port 1 bit 7 |
| Broche 9 | RST — Reset input (active high) |
| Broche 10 | P3.0/RXD — Port 3 bit 0 / UART receive |
| Broche 11 | P3.1/TXD — Port 3 bit 1 / UART transmit |
| Broche 12 | P3.2/INT0 — Port 3 bit 2 / External interrupt 0 |
| Broche 13 | P3.3/INT1 — Port 3 bit 3 / External interrupt 1 |
| Broche 14 | P3.4/T0 — Port 3 bit 4 / Timer 0 external input |
| Broche 15 | P3.5/T1 — Port 3 bit 5 / Timer 1 external input |
| Broche 16 | P3.6/WR — Port 3 bit 6 / External write strobe |
| Broche 17 | P3.7/RD — Port 3 bit 7 / External read strobe |
| Broche 18 | XTAL2 — Crystal oscillator output |
| Broche 19 | XTAL1 — Crystal oscillator input |
| Broche 20 | GND — Ground |
| Broche 21 | P2.0/A8 — Port 2 bit 0 / Address bit 8 |
| Broche 22 | P2.1/A9 — Port 2 bit 1 / Address bit 9 |
| Broche 23 | P2.2/A10 — Port 2 bit 2 / Address bit 10 |
| Broche 24 | P2.3/A11 — Port 2 bit 3 / Address bit 11 |
| Broche 25 | P2.4/A12 — Port 2 bit 4 / Address bit 12 |
| Broche 26 | P2.5/A13 — Port 2 bit 5 / Address bit 13 |
| Broche 27 | P2.6/A14 — Port 2 bit 6 / Address bit 14 |
| Broche 28 | P2.7/A15 — Port 2 bit 7 / Address bit 15 |
| Broche 29 | PSEN — Program Store Enable |
| Broche 30 | ALE/PROG — Address Latch Enable / Flash programming pulse |
| Broche 31 | EA/VPP — External Access / Flash programming voltage |
| Broche 32 | P0.7/AD7 — Port 0 bit 7 / Address-Data bit 7 |
| Broche 33 | P0.6/AD6 — Port 0 bit 6 / Address-Data bit 6 |
| Broche 34 | P0.5/AD5 — Port 0 bit 5 / Address-Data bit 5 |
| Broche 35 | P0.4/AD4 — Port 0 bit 4 / Address-Data bit 4 |
| Broche 36 | P0.3/AD3 — Port 0 bit 3 / Address-Data bit 3 |
| Broche 37 | P0.2/AD2 — Port 0 bit 2 / Address-Data bit 2 |
| Broche 38 | P0.1/AD1 — Port 0 bit 1 / Address-Data bit 1 |
| Broche 39 | P0.0/AD0 — Port 0 bit 0 / Address-Data bit 0 |
| Broche 40 | VCC — Positive supply (3.0 V to 5.5 V) |
| Broche 41 | CANRX — CAN receive input |
| Broche 42 | CANTX — CAN transmit output |
| Broche 43 | P4.0 — Port 4 bit 0 |
| Broche 44 | P4.1 — Port 4 bit 1 |
Applications typiques
AT89C51CC01UA-SLSUM convient pour 6 applications: Automotive CAN Body/Chassis ECU, Industrial CANopen Sensor/Actuator Node, Building Automation CAN Gateway, CAN-to-UART Protocol Bridge, Automotive Dashboard Cluster Module, Medical CAN-based Patient Monitor Sub-System.
Automotive CAN Body/Chassis ECU
The AT89C51CC01UA-SLSUM's integrated hardware CAN 2.0B controller and 40 MHz 8051 core make it well-suited for automotive body and chassis ECUs that communicate on 500 kbps CAN bus segments. The device handles CAN frame transmission and reception in hardware, freeing the CPU for body-control logic such as lighting, door modules, and seat controllers. Its 32 KB Flash accommodates typical body ECU application code, while 1.2 KB RAM supports CAN mailbox structures and runtime variables. The industrial -40 C to +85 C temperature range covers automotive under-hood and cabin environments per AEC-Q100 ambient requirements. Compared to MCU-plus-external-CAN-controller solutions, the integrated approach reduces BOM cost by approximately USD 1-2 per node and shrinks PCB footprint by 30-40 percent, valuable in space-constrained body ECUs.
Recommandé
Industrial CANopen Sensor/Actuator Node
For industrial CANopen networks operating at 125 kbps to 1 Mbps, the AT89C51CC01UA-SLSUM provides a single-chip node solution with on-chip CAN 2.0B and 32 KB of program memory for CANopen stack (CiA 401/402/406) plus application code. The 8051 architecture is widely supported in industrial automation, and the 40 MHz clock gives sufficient throughput for typical sensor sampling, TPDO/RPDO processing, and NMT state-machine handling. Industrial temperature range of -40 C to +85 C suits factory-floor deployment in motor starters, valve controllers, and distributed I/O modules. Compared to ARM Cortex-M0+ alternatives, the AT89C51CC01UA offers lower cost and simpler toolchain for legacy CANopen designs where migration cost outweighs the cycle-count penalty.
Recommandé
Building Automation CAN Gateway
Building-automation systems such as HVAC controllers, elevator shaft I/O, and access-control panels often use CAN bus for inter-floor and inter-panel wiring. The AT89C51CC01UA-SLSUM's CAN peripheral and 32 KB Flash support gateway firmware bridging CAN to UART, SPI, or Ethernet peripherals. Its PLCC-44 package is well-suited to through-hole-style assembly favored in building-automation controllers, and the 3.0-5.5 V supply range works with both 3.3 V and 5 V bus transceivers. Industrial temperature rating ensures reliable operation in unconditioned mechanical rooms and rooftop HVAC enclosures. Compared to higher-pin-count ARM alternatives, the AT89C51CC01UA's 44-pin PLCC package eases mechanical layout in legacy building-automation chassis.
Recommandé
CAN-to-UART Protocol Bridge
The AT89C51CC01UA-SLSUM is ideal for protocol-bridge applications converting CAN frames to UART streams for legacy serial devices such as RS-232/RS-485 instruments. The integrated CAN controller handles bus arbitration, error detection, and frame filtering, leaving CPU bandwidth for UART framing, protocol parsing, and command processing. With 32 KB Flash, the device can host a small CANopen-to-Modbus gateway or a J1939-to-NMEA 2000 bridge. The 40 MHz clock provides sufficient margin for 115200 bps UART bridging at full CAN bus utilization in industrial instrumentation. Compared to a separate MCU plus external CAN controller, the integrated solution reduces PCB area and BOM cost for cost-sensitive bridge products.
Recommandé
Automotive Dashboard Cluster Module
Dashboard instrument clusters often integrate multiple sub-modules such as tell-tale drivers, gauge controllers, and warning indicators that communicate via CAN. The AT89C51CC01UA-SLSUM serves well as the CAN-connected sub-controller in such clusters, handling tell-tale LED matrices, gauge stepper driving, and CAN message exchange with the main cluster MCU. Its 32 KB Flash supports typical tell-tale symbol libraries, and 1.2 KB RAM supports CAN mailbox processing plus PWM generation. The industrial -40 C to +85 C range covers cabin temperatures, and the PLCC-44 package simplifies service and rework in aftermarket and OEM cluster manufacturing.
Recommandé
Medical CAN-based Patient Monitor Sub-System
Medical patient monitoring systems increasingly use CAN bus for inter-module communication between bedside monitors, vital-signs modules, and central stations. The AT89C51CC01UA-SLSUM can serve as the sub-system controller in a vital-signs module, providing hardware CAN communication with the main monitor and 32 KB Flash for sensor-sampling code. The 8051 core's deterministic instruction timing supports real-time sampling of ECG, SpO2, and NIBP signals. Industrial temperature rating is adequate for clinical environments, while the PLCC-44 package supports both OEM and field-serviceable designs. Note: medical designs typically require IEC 60601-1 compliance at the system level and additional isolation that the AT89C51CC01UA does not provide alone.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour AT89C51CC01UA-SLSUM — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | AT89C51CC03UA-SLSUM | AT89C51ED2-SLSUM | AT89C51AC2-SLSUM | AT89C51RD2-SLSUM | AT89LP51RC2-20JU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin PLCC (16.6x16.6) | 44-pin PLCC (16.6x16.6) | 44-pin PLCC (16.6x16.6) | 44-pin PLCC (16.6x16.6) | 44-pin PLCC (16.6x16.6) | 44-pin PLCC (16.6x16.6) |
| Core Architecture | 8051 / 80C51 | 8051 / 80C51 | 8051 / 80C51 | 8051 / 80C51 | 8051 / 80C51 | 8051 / 80C51 (single-cycle) |
| Program Flash Memory | 32 KB | 64 KB | 64 KB | 32 KB | 64 KB | 32 KB |
| Integrated CAN 2.0B | Yes | Yes | No | No | No | No |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principaux différenciateurs
- Integrated hardware CAN 2.0B controller (vs AT89C51ED2-SLSUM)
- Drop-in PLCC-44 upgrade path to AT89C51CC03UA-SLSUM (vs AT89C51AC2-SLSUM)
- 32 KB Flash plus 2 KB EEPROM for data logging (vs AT89LP51RC2-20JU)
Notes de conception
Decoupling: Place one 100 nF ceramic capacitor (X7R, 0.1-inch pitch) as close as physically possible to each VCC/GND pin pair. Add a bulk 10 uF tantalum or low-ESR ceramic on the main VCC rail. The AT89C51CC01UA-SLSUM draws peak currents during Flash programming and CAN transmission; inadequate decoupling causes spurious resets or CAN error frames during bus arbitration.
Oscillator layout: Keep the crystal/ceramic resonator and its load capacitors within 5 mm of XTAL1/XTAL2 pins. Guard the oscillator traces with a GND ring to suppress radiated noise that could couple into the CAN bus lines. A series damping resistor (typically 100 ohm to 1 kohm) in the crystal path can be added if the oscillator overdrives at high supply voltages above 4.5 V.
CAN bus layout: Route CANTX and CANRX to the external CAN transceiver (e.g., MCP2551) using matched-length, impedance-controlled traces. Keep bus stubs shorter than one-tenth of the CAN signal rise time. Use a 120 ohm termination resistor at each end of the bus segment, with the resistor placed within 5 mm of the bus connector and connector-to-transceiver trace length kept below 30 mm.
Do not assert RST while VCC is below 2.7 V - this can latch up the internal Flash charge pump and corrupt program memory. Always power up VCC before or simultaneously with RST rising edge. For in-system programming (ISP), ensure EA/VPP is held at the correct voltage level per datasheet during programming cycles, or use the built-in bootloader mode via UART for safer field updates.
Port 0 (P0.0-P0.7) is an open-drain bus and requires external pull-up resistors (typically 10 kohm) when used as general-purpose I/O. Without pull-ups, P0 reads high only weakly, causing intermittent logic-level errors. When P0 is used as the multiplexed address/data bus (with external memory), the pull-ups are not needed because external memory devices drive the bus during read cycles.
Informations de conformité
RoHS compliant per distributor listings on DigiKey and Mouser. Industrial temperature grade -40 C to +85 C; not AEC-Q100 qualified for automotive. Halogen-free status not explicitly listed in the verified web data and is therefore reported as unknown per the Data Authenticity Rules.
