PIC12F635-I/P - 8-Bit 20MHz Flash MCU | Microchip Technology
Référence : PIC12F635-I/P ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.9012 | $2,90 |
| 10 | $2.7344 | $27,34 |
| 100 | $2.3249 | $232,49 |
| 500 | $1.9936 | $996,80 |
| 1 000 | $1.7792 | $1 779,20 |
PIC12F635-I/P Présentation
A microcontroller is a programmable integrated circuit that combines a CPU core, memory, I/O ports, and peripherals on one semiconductor device. The PIC12F635 belongs to the PIC12 family of 8-bit RISC microcontrollers, where RISC means the processor uses a compact, predominantly single-word instruction set. The manufacturer states that programmers need only 35 single-word instructions, reducing learning and code-development effort for compact control systems.
Key device capabilities include up to 20 MHz operation, Flash program memory, 64 bytes of RAM, six I/O ports, and one comparator. Microchip's product page also identifies a KeeLoq-compatible cryptographic module and programmable low-voltage detection. These features allow the PIC12F635-I/P to combine basic embedded control, threshold monitoring, and selected security-oriented processing without requiring a larger system controller.
The PIC architecture uses separate program and data memory spaces and supports efficient control of embedded I/O. At an operating frequency as high as 20 MHz, firmware can support time-sensitive state machines, switching control, signal conditioning, and low-complexity communication tasks. Exact timing, memory-map, peripheral, and electrical details should be confirmed against the manufacturer datasheet before final firmware and PCB design.
Typical uses include compact remote controls, battery-powered sensing nodes, simple security modules, programmable switching products, industrial auxiliary controllers, and low-cost embedded-control boards. The six available I/O pins make the device most suitable where the external interface is limited and the control task does not require extensive communications or high pin counts.
Designers should reserve the programming interface, maintain the required oscillator and decoupling layout, and verify the exact I/O direction and analog functions assigned to each pin. Because firmware and peripherals depend on device configuration bits, production designs should follow the manufacturer programming and development-tool guidance rather than assuming behavior from another PIC model.
This product page consolidates the verified manufacturer and distributor details for the PIC12F635-I/P and distinguishes confirmed characteristics from data that still requires direct datasheet review. It also organizes purchasing, pinout, comparison, application, and replacement questions around the exact 8-pin PDIP device rather than package or grade variants.
Alternatives de remplacement direct pour PIC12F635-I/P — 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 PIC12F635-I/P (même facteur de forme et même empreinte).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC12F635-E/P
✅ Remplacement direct✓ En stock
$1.38 / unité
Voir la fiche technique →PIC12F635-I/SN
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC12F635-I/P Valeurs maximales et caractéristiques électriques
| Device Type | 8-bit CMOS Flash-based microcontroller |
| Fréquence d'horloge maximale | 20 MHz |
| Program Memory | 1.75 KB |
| Program Memory Organization | 1K x 14 words |
| RAM | 64 bytes |
| General-Purpose I/O | 6 ports |
| Instruction Set | 35 single-word instructions |
| Comparator | 1 comparator |
| Cryptographic Capability | KeeLoq-compatible Cryptographic Module |
| Low-Voltage Detection | PLVD |
| Boîtier | 8-pin PDIP |
| Type de montage | Through-hole |
| Temperature Grade | Industrial (-I grade) |
| Clock and Oscillator Range | DC to 20 MHz |
| Tension d'alimentation | 4.5 V to 5.5 V |
| Flash Type | Flash |
| Lifecycle Stage | Active |
Guide de configuration des broches du PIC12F635-I/P 8-pin pdip
Configuration des broches du PIC12F635-I/P (boîtier 8-pin pdip). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour PIC12F635-I/P.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
PIC12F635-I/P convient pour 6 applications: Compact Remote and Keypad Control, Battery-Powered Sensing Node, Programmable Threshold Detector, Low-Cost Security Control Module, Industrial Auxiliary Controller, Programmable Switching Controller.
Compact Remote and Keypad Control
PIC12F635-I/P fits compact remote controls and keypad products because it combines six I/O ports, 1.75 KB of Flash program memory, and a 20 MHz maximum clock in an 8-pin PDIP package. The MCU can scan a limited switch matrix, debounce inputs, drive indicator LEDs, and execute product-specific control logic. Its 35-instruction architecture also keeps firmware concepts accessible for simple products. The main constraint is interface breadth: designs requiring more than six usable I/O lines or a very large feature set should choose a larger PIC device.
Recommandé
Battery-Powered Sensing Node
PIC12F635-I/P is suitable for a small battery-powered sensing node when the system uses its comparator and limited digital I/O for threshold decisions. The comparator can evaluate an analog input against an internal or external reference, while firmware can filter the result, update an indicator, or activate a switched output. The verified 1.75 KB Flash and 64 bytes of RAM support compact control logic. Before sizing a battery, engineers must confirm active, sleep, and wake-up current from the manufacturer datasheet rather than estimating operating life from clock speed alone.
Recommandé
Programmable Threshold Detector
PIC12F635-I/P can implement a programmable threshold detector by applying a monitored signal to its comparator and using firmware to implement hysteresis, delay, alarm state, and output control. The PLVD capability is also relevant to low-supply monitoring, while the six I/O ports can expose status indicators and a reset or alarm signal. This arrangement avoids a separate controller when the task consists mainly of threshold supervision. Calibration strategy, input limits, comparator timing, and supply operating conditions should be taken directly from the datasheet.
Recommandé
Low-Cost Security Control Module
PIC12F635-I/P is appropriate for simple embedded security functions because Microchip identifies a KeeLoq-compatible Cryptographic Module within the device. An engineer could combine the module with six I/O ports, a 20 MHz maximum operating speed, and program Flash to create a compact decoder or access-control peripheral. The 64 bytes of RAM limits how much simultaneous application data can be buffered, so cryptographic operation and message handling must be reviewed carefully. Security claims should be evaluated against the actual protocol, key handling, and threat model rather than inferred from the module name alone.
Recommandé
Industrial Auxiliary Controller
PIC12F635-I/P can serve as an industrial auxiliary controller for a board requiring local switching, status tracking, and supply-threshold supervision. Its -I industrial ordering grade and 8-pin PDIP package simplify through-hole assembly and inspection, while the comparator and PLVD support protection functions. The six I/O ports are suitable when the controller observes a small number of discrete signals. Production engineers must still confirm the exact operating-temperature limits, supply range, electrical characteristics, and applicable industry certifications before releasing the design.
Recommandé
Programmable Switching Controller
PIC12F635-I/P can control relays, indicators, latches, or other discrete loads when only a small number of outputs are required. At speeds up to 20 MHz, firmware can execute debounce, interlocking, timing, and fault-state logic, while the 1.75 KB Flash budget favors focused control products rather than general applications. Designers should use suitable driver circuitry for inductive loads and never exceed package or pin current limits. Firmware should fail to a defined state and include startup conditions appropriate to the controlled power stage.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC12F635-I/P — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC12F635-E/P | PIC12F635-I/SN |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Architecture | 8-bit PIC RISC microcontroller | 8-bit PIC RISC microcontroller | 8-bit PIC RISC microcontroller |
| Temperature Grade | Industrial (-I) | Extended (-E) | Industrial (-I) |
Principaux différenciateurs
- Verified industrial-grade 8-pin PDIP ordering configuration (vs PIC12F635-E/P)
- Through-hole package preserves the target PCB footprint (vs PIC12F635-I/SN)
- Compact control resource integration (vs ATF22V10C-10PU)
Notes de conception
Design the board around the verified 8-pin PDIP footprint and preserve access to all programming pins. Place the decoupling capacitor at the supply and ground pins with the shortest practical return path, and route high-impedance or sensitive comparator inputs away from switching nodes. The verified distributor data does not provide individual pin names, so engineers must derive the footprint and pin functions directly from the official 8-pin diagram before release.
Use only a supply within the verified 4.5 V to 5.5 V range unless the complete manufacturer data supports operation outside it. Validate brownout, startup, and PLVD behavior at the system voltage extremes. Estimated battery performance cannot be calculated from the 20 MHz clock speed alone; obtain sleep current, active current, and wake-up timing from the manufacturer datasheet before sizing a power source.
Keep oscillator traces short and position them away from comparator inputs and switching-power wiring. If the internal oscillator is used, follow the current Microchip layout and component-placement guidance for the selected clock mode. Because the target has only six I/O ports, assign pins early and avoid late firmware-driven reassignment that could conflict with programming, debug, or boot behavior.
Informations de conformité
The supplied verified records do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because this is an industrial-grade microcontroller rather than an explicitly automotive-qualified device.
