PIC16C58B-40/SO - 8-Bit 40MHz PIC MCU, 3KB OTP, 18-SOIC | Microchip
Référence : PIC16C58B-40/SO ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.95 | $3,95 |
| 10 | $3.55 | $35,50 |
| 100 | $3.05 | $305,00 |
| 500 | $2.55 | $1 275,00 |
| 1 000 | $2.18 | $2 180,00 |
PIC16C58B-40/SO Présentation
An OTP-based 8-bit microcontroller is a member of the EPROM/ROM-based CMOS microcontroller category, sitting within the broader microcontroller (MCU) hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. These devices trade reprogrammability for low unit cost, making them well-suited to high-volume, code-stable applications where the firmware is finalized before mask/OTP programming. The PIC16C5X family, including the PIC16C58B, is the predecessor lineage to modern PIC16F1xxx Flash-based MCUs, retaining the same peripheral model and instruction set for migration continuity.
Key features of the PIC16C58B-40/SO include a fully static CMOS design (enabling operation down to DC clock rates for low-power sleep modes), a wide 3.0V-5.5V supply range (5V nominal at 40 MHz), 12 bidirectional digital I/O pins with programmable direction, a watchdog timer, power-on reset, and brown-out detection. The OTP EPROM provides 2,048 words (12 bits per word) of program storage, while 73 bytes of general-purpose RAM support data manipulation and stack operations. The 18-SOIC package is footprint-compatible with the PIC16C55/C56/C57 family members.
The architecture uses a Harvard-style separate program and data bus, with program memory fetched in parallel with instruction execution to sustain single-cycle throughput. The ALU operates on 8-bit operands with carry, borrow, and decimal-adjust flags; arithmetic, logical, and bit-manipulation instructions are unified into a single instruction word. This tight architecture minimizes silicon die area and dynamic power consumption, contributing to the family's reputation for cost-effective embedded control.
Typical applications include appliance control, automotive body modules, sensor signal conditioning, simple motor control, LED driving, remote control encoders, and any high-volume consumer or industrial product requiring a low-cost 8-bit controller. The PIC16C58B-40/SO is also widely used in educational and hobbyist applications that benefit from the established PIC16C5X toolchain. Designers should note that the 40 MHz speed grade requires a 4.5V-5.5V supply; for 3.3V operation the slower speed grade variants (e.g., -04, -20) must be selected. This page synthesizes distributor pricing, drop-in package alternatives, and practical design considerations not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC16C58B-40/SO — 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 PIC16C58B-40/SO (même facteur de forme et même empreinte) — différant par Package, Timers, Program Memory Size, Core Architecture, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16C57C-40/SO
✅ Remplacement direct✓ En stock
$1.9 / unité
Voir la fiche technique →PIC16C55A-40/SO
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16C56A-20/SO
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16C57C-20/SO
✅ Remplacement direct✓ En stock
$2.89 / unité
Voir la fiche technique →PIC16C58B-20/SO
✅ Remplacement direct✓ En stock
$1.78 / unité
Voir la fiche technique →PIC16C58B-04/SO
✅ Remplacement direct✓ En stock
$1.88 / unité
Voir la fiche technique →PIC16C58B-40/SO Valeurs maximales et caractéristiques électriques
| Core | PIC16C 8-bit RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12) |
| RAM Size | 73 bytes |
| Data EEPROM | Not present |
| Maximum Clock Speed | 40 MHz |
| Instruction Cycle Time | 100 ns (at 40 MHz) |
| Tension d'alimentation | 3.0 V to 5.5 V (4.5 V to 5.5 V at 40 MHz) |
| I/O Pins | 12 |
| Boîtier | 18-SOIC (7.50 mm body width) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40 C to +85 C (industrial; per /SO no-I-suffix) |
| Instruction Set | 33 single-word, single-cycle instructions |
| Watchdog Timer | Yes |
| Brown-out Reset / Power-on Reset | Yes |
| Statut RoHS | Not compliant (OTP EPROM / older product) |
Configuration des broches de PIC16C58B-40/SO
| Broche 1 | RA0/DT — Bidirectional I/O pin / data line |
| Broche 2 | RA1 — Bidirectional I/O pin |
| Broche 3 | RA2 — Bidirectional I/O pin |
| Broche 4 | RA3 — Bidirectional I/O pin |
| Broche 5 | MCLR/VPP — Master clear (reset) / programming voltage input |
| Broche 6 | OSC1/CLKIN — Oscillator input / external clock input |
| Broche 7 | OSC2/CLKOUT — Oscillator output / clock output |
| Broche 8 | VSS — Ground reference |
| Broche 9 | T0CKI — Timer0 clock input |
| Broche 10 | RB0/INT — Bidirectional I/O / external interrupt |
| Broche 11 | RB1 — Bidirectional I/O pin |
| Broche 12 | RB2 — Bidirectional I/O pin |
| Broche 13 | RB3 — Bidirectional I/O pin |
| Broche 14 | RB4 — Bidirectional I/O pin |
| Broche 15 | RB5 — Bidirectional I/O pin |
| Broche 16 | RB6 — Bidirectional I/O pin |
| Broche 17 | RB7 — Bidirectional I/O pin |
| Broche 18 | VDD — Positive supply voltage |
Applications typiques
PIC16C58B-40/SO convient pour 6 applications: Appliance Control and Home Electronics, Automotive Body Electronics, Remote Control and RF Encoder Applications, LED Lighting and Display Drivers, Industrial Sensor Signal Conditioning, Educational and Hobbyist Embedded Projects.
Appliance Control and Home Electronics
The PIC16C58B-40/SO's 40 MHz throughput, 12 I/O pins, and 3 KB OTP program memory make it well-suited for low-cost appliance controllers including washing machines, microwave ovens, and HVAC controls. Its 5V-tolerant CMOS design integrates cleanly with relays and triac drivers via the 12 digital I/O pins, while the deterministic 100 ns instruction cycle supports accurate timing of motor commutation and zero-cross detection. The OTP memory locks firmware once finalized, preventing field reprogramming and reducing firmware tampering risk. This application leverages the PIC16C5X RISC architecture for predictable response times in safety-critical timing loops, and the wide 18-SOIC footprint remains manufacturable on standard SMT equipment.
Recommandé
Automotive Body Electronics
The PIC16C58B-40/SO operates reliably across -40 C to +85 C and is widely deployed in automotive body modules for window lifts, mirror adjusters, and seat controllers where a sealed firmware image is preferred. Its 40 MHz execution delivers responsive control of motor encoders and position sensors, and the 12 I/O pins multiplex keypad scanning and LED indication. The OTP EPROM ensures that the firmware cannot be field-modified, satisfying OEM security requirements. Combined with external watchdog supervisor ICs and high-side drivers, the device forms the core of compact, cost-optimized body controllers. The wide 18-SOIC footprint simplifies PCB layout across module variants.
Recommandé
Remote Control and RF Encoder Applications
The PIC16C58B-40/SO's compact code footprint and 73 bytes of RAM support common remote control encoders (PT2262-compatible protocols, EV1527, fixed-code transmission) where deterministic timing of the carrier burst is critical. The 12 I/O pins drive matrix keypads and RF transmitter enable lines, while the 40 MHz clock provides precise 1 ms tick generation for rolling-code timing. OTP EPROM is advantageous here because the transmit code is locked at production and cannot be cloned via in-circuit reprogramming. The low-power CMOS core extends battery life by idling in sleep mode between keystrokes, and the 18-SOIC footprint fits inside a slim AA-battery housing.
Recommandé
LED Lighting and Display Drivers
The PIC16C58B-40/SO's 12 I/O pins can directly sink LED current up to 25 mA per pin (per PIC16C5X datasheet), supporting multiplexed 7-segment display scanning and Charlieplexed LED matrices without external driver ICs. The 40 MHz throughput enables smooth PWM dimming across multiple channels at >1 kHz refresh rates to eliminate flicker, while the 73 bytes of RAM are sufficient to track brightness look-up tables. OTP memory locks the lighting profile at production, which is desirable for branded lighting products. Designers should add series resistors to limit I/O pin current and consider thermal management if multiple outputs are continuously on.
Recommandé
Industrial Sensor Signal Conditioning
The PIC16C58B-40/SO is used in industrial sensor modules for digital filtering, threshold detection, and Modbus-style serial output of analog readings. Although it has no on-chip ADC, the device pairs with external ADC companions (e.g., MCP3002) to provide 10-bit readings of bridge sensors, thermistors, and 4-20 mA loops. The 40 MHz throughput supports up to 10 kHz sampling rates with digital filtering in firmware. Its 5V tolerance matches most industrial 24V-scaled analog front-ends. OTP firmware locks the calibration coefficients at production, preventing field tampering with safety-critical setpoints. The 18-SOIC package supports through-hole-friendly PCB layouts.
Recommandé
Educational and Hobbyist Embedded Projects
The PIC16C58B-40/SO remains popular in educational settings and hobbyist projects where the established PIC16C5X toolchain (MPASM, MPLAB X, PICkit programmers) provides a low-cost entry into 8-bit microcontroller design. Its simple RISC architecture with 33 instructions can be mastered in a single lab session, and the deterministic 100 ns instruction cycle is easy to reason about for assembly-level timing exercises. The 3 KB OTP memory accommodates moderate-sized student projects while enforcing the discipline of committing to a final firmware image. For prototyping, students often start with the Flash-based PIC16F57-I/SO and migrate to PIC16C58B-40/SO only when the firmware is finalized and a cost-optimized production unit is required.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16C58B-40/SO — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16C57C-40/SO | PIC16C55A-40/SO | PIC16C56A-20/SO | PIC16C57C-20/SO | PIC16C58B-20/SO | PIC16C58B-04/SO |
|---|---|---|---|---|---|---|---|
| Package | 18-SOIC (7.50 mm) | 18-SOIC (7.50 mm) - same | 18-SOIC (7.50 mm) - same | 18-SOIC (7.50 mm) - same | 18-SOIC (7.50 mm) - same | 18-SOIC (7.50 mm) - same | 18-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3 KB (2K x 12) OTP EPROM | 2 KB (1K x 12) OTP EPROM | 768 B (512 x 12) OTP EPROM | 1.5 KB (1K x 12) OTP EPROM | 2 KB (1K x 12) OTP EPROM | 3 KB (2K x 12) OTP EPROM (same) | 3 KB (2K x 12) OTP EPROM (same) |
| Maximum Clock Speed | 40 MHz | 40 MHz | 40 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz |
| RAM | 73 bytes | 72 bytes | 25 bytes | 25 bytes | 72 bytes | 73 bytes (same) | 73 bytes (same) |
| I/O Pins | 12 | 20 | 20 | 12 | 20 | 12 (same) | 12 (same) |
| Instruction Set | 33 single-cycle instructions (RISC) | 33 single-cycle instructions (same) | 33 single-cycle instructions (same) | 33 single-cycle instructions (same) | 33 single-cycle instructions (same) | 33 single-cycle instructions (same) | 33 single-cycle instructions (same) |
| Supply Voltage | 3.0 V to 5.5 V (5 V at 40 MHz) | 3.0 V to 5.5 V (5 V at 40 MHz) | 3.0 V to 5.5 V (5 V at 40 MHz) | 3.0 V to 5.5 V (5 V at 20 MHz) | 3.0 V to 5.5 V (5 V at 20 MHz) | 3.0 V to 5.5 V (5 V at 20 MHz) | 3.0 V to 5.5 V (5 V at 4 MHz) |
Principaux différenciateurs
- Largest program memory in PIC16C5X family at 3 KB OTP (vs PIC16C57C-40/SO)
- Highest speed grade in the baseline PIC16C5X family (vs PIC16C58B-20/SO)
- Industry-standard 18-SOIC pinout with 12 I/O pins (vs PIC16C57C-40/SO)
Notes de conception
The PIC16C58B-40/SO requires a stable 5V supply for full 40 MHz operation. Per Microchip datasheet, VDD must remain between 4.5 V and 5.5 V at this speed grade; for 3.3V-only systems, choose a -20 or -04 speed grade. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin (pin 18), and add a 10 uF bulk capacitor at the regulator output to suppress supply droops during I/O switching transients.
The PIC16C58B-40/SO uses One-Time-Programmable EPROM - it CANNOT be re-programmed in-circuit. Any firmware bug discovered after OTP programming requires physical part replacement. Engineers should always prototype with the Flash-based PIC16F57-I/SO (same 18-SOIC footprint and core) and only commit to PIC16C58B-40/SO after firmware is fully validated. Also note that the MCLR pin (pin 5) doubles as VPP during OTP programming - a high-voltage programmer (e.g., PICkit 3) must be used, not a standard ISP.
Keep the external crystal or resonator within 5 mm of OSC1 (pin 6) and OSC2 (pin 7). Place a ground guard ring around the oscillator components to minimize noise coupling into the clock. Avoid routing high-frequency signal traces parallel to OSC1/OSC2; cross them at 90 degrees if necessary. For high-speed designs, add a 100 ohm series termination resistor at the OSC2 output to dampen reflections when driving long traces.
Estimated: at maximum I/O load (12 pins x 25 mA = 300 mA) and 5V supply, the device can dissipate approximately 1.5 W internally. The 18-SOIC package has a typical theta-JA of 100 C/W (per SOIC thermal data), resulting in a 150 C junction temperature rise above ambient - which exceeds the 150 C absolute maximum. Therefore, derate total I/O current to no more than 100 mA continuous per the PIC16C5X datasheet, and use external drivers (ULN2003, MOSFETs) for high-current loads.
Informations de conformité
The PIC16C58B-40/SO is an OTP-EPROM-based legacy part generally not RoHS compliant due to lead-bearing solder finish; verify with the manufacturer for current compliance status. Not AEC-Q100 qualified - this is a commercial/industrial grade part. For automotive applications, consider PIC16C58B-40E/SO (extended temperature) or migrate to PIC16F family with AEC-Q100 qualification.