PIC16C58B-04I/SS - 8-bit EPROM MCU 4MHz 20-SSOP | Microchip
N.º de pieza: PIC16C58B-04I/SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.18 | $2,18 |
| 10 | $1.96 | $19,60 |
| 100 | $1.74 | $174,00 |
| 500 | $1.55 | $775,00 |
| 1.000 | $1.38 | $1.380,00 |
PIC16C58B-04I/SS Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer optimized for embedded control tasks. The PIC16C5X family specifically targets low-cost, high-volume applications using a Reduced Instruction Set Computing (RISC) architecture with only 33 single-word, single-cycle instructions, giving it a deterministic 4-clock equivalent instruction cycle at 4 MHz. Within the broader semiconductor taxonomy, MCUs sit below microprocessors in integration and are categorized as: MCU -> 8-bit microcontroller -> PIC16 family -> EPROM-based PIC16C5X subfamily -> CMOS OTP/ROM controller.
Key features include a 12-bit wide instruction word with 8-bit wide data path, two-level deep hardware stack, direct/indirect/relative addressing modes for both data and instructions, and an 8-bit real-time clock/counter (TMR0) with 8-bit prescaler. The device also incorporates a watchdog timer with on-chip RC oscillator, power-on reset, and power-saving SLEEP mode. A 4 MHz maximum oscillator frequency keeps power consumption low for always-on or battery-tolerant designs.
Technically, the PIC16C58B uses a fully static CMOS process allowing clock frequencies down to DC, supporting low-power sleep modes useful for energy-harvesting or interrupt-driven applications. The 12-bit instruction width provides 2:1 code compression versus competing 8-bit CISC architectures, allowing the 3 KB OTP memory to host more application code than byte-oriented equivalents of similar size.
Typical applications include low-cost consumer appliances, automotive sub-system controllers, industrial timing and sequencing logic, remote sensor interface boards, and user-interface panels where the 12 I/O pins and small SSOP footprint are sufficient. The wide operating temperature range makes the part viable for both indoor and harsh-environment deployments.
When designing with this device, engineers should note that OTP EPROM cannot be re-programmed in-circuit, so development typically uses a windowed CERDIP sample (PIC16C58B JW) or a Flash-based PIC16F5X equivalent for code iteration. The lack of an on-chip debugger interface means emulator or ICE tools are required for stepping debug.
This page synthesizes distributor stock and pricing, parametric drop-in alternatives, and application-focused design notes not found in a single source on the manufacturer datasheet.
Alternativas directas para PIC16C58B-04I/SS — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16C58B-04I/SS (mismo factor de forma y huella) — difiere en Program Memory Type, Package, Operating Temperature Range, Program Memory Size, Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16C58B-04/SS
✅ Sustitución directa✓ En stock
$1.45 / unidad
Ver hoja de datos →PIC16C58B-04I/P
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$1.88 / unidad
Ver hoja de datos →PIC16C58B-04/P
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$2.55 / unidad
Ver hoja de datos →PIC16C58B-04I/SS Valores máximos y características eléctricas
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16C5X (RISC) |
| Program Memory Type | EPROM (OTP) |
| Program Memory Size | 3 KB (2K x 12 instructions) |
| RAM Size | 73 bytes |
| Number of I/O Pins | 12 |
| Frecuencia de reloj máxima | 4 MHz |
| Instruction Set | 33 single-word, single-cycle instructions |
| Instruction Width | 12 bits |
| Data Path Width | 8 bits |
| Hardware Stack Depth | 2 levels |
| Timers | 1 x 8-bit (TMR0 with 8-bit prescaler) |
| Addressing Modes | Direct, Indirect, Relative |
| Tensión de alimentación | 5 V (typical PIC16C5X operation) |
| Watchdog Timer | Yes (with on-chip RC oscillator) |
| Power-on Reset | Yes |
| Power-Saving SLEEP Mode | Yes |
| Rango de temperatura de funcionamiento | -40 C to +85 C (Industrial, 'I' suffix) |
| Encapsulado | 20-pin SSOP (0.209 inch / 5.30 mm width) |
| Tipo de montaje | Surface Mount |
Configuración de pines de PIC16C58B-04I/SS
| Pin 1 | RA2 — Bidirectional I/O port A bit 2 |
| Pin 2 | RA3 — Bidirectional I/O port A bit 3 |
| Pin 3 | RB0 — Bidirectional I/O port B bit 0 (with interrupt) |
| Pin 4 | RB1 — Bidirectional I/O port B bit 1 |
| Pin 5 | RB2 — Bidirectional I/O port B bit 2 |
| Pin 6 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin 7 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input |
| Pin 8 | MCLR — Master clear reset input (active low) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | NC — Not connected (per datasheet) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | RB3 — Bidirectional I/O port B bit 3 |
| Pin 13 | RB4 — Bidirectional I/O port B bit 4 |
| Pin 14 | RB5 — Bidirectional I/O port B bit 5 |
| Pin 15 | RB6 — Bidirectional I/O port B bit 6 |
| Pin 16 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 17 | RA0 — Bidirectional I/O port A bit 0 |
| Pin 18 | RA1 — Bidirectional I/O port A bit 1 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
Aplicaciones típicas
PIC16C58B-04I/SS es adecuado para 6 aplicacións: Low-Cost Consumer Appliance Controllers, Automotive Sub-System Modules, Industrial Timing and Sequencing Logic, Remote Sensor Interface Boards, User Interface Panels, Harsh-Environment Sensor Nodes.
Low-Cost Consumer Appliance Controllers
The PIC16C58B-04I/SS fits appliance controllers (coffee makers, microwave UI boards, fans) where its 3 KB OTP EPROM holds the fixed control program and its 12 digital I/O pins drive keypads, LED indicators, relays, and triac interfaces. At 4 MHz the MCU produces a 1 MIPS instruction rate, fast enough for triac zero-crossing timing and PWM fan-speed control without external timing ICs. The 20-pin SSOP is compact enough for sub-$0.50 BOM boards and the industrial temperature range supports garage or workshop environments where consumer-only parts would fail.
Recomendado
Automotive Sub-System Modules
The PIC16C58B-04I/SS is well matched to automotive body-electronics sub-modules such as HVAC blend-door actuators, seat-position memory, and lighting timers where the 12 I/O pins connect to analog sensors, FET drivers, and LIN/CAN companion transceivers. The industrial -40 C to +85 C rating covers cabin and under-hood-near applications (full under-hood requires AEC-Q100). The RISC 33-instruction set simplifies MISRA-style static code analysis for OEMs, and the OTP EPROM prevents unintended field firmware modifications on safety-relevant nodes.
Recomendado
Industrial Timing and Sequencing Logic
The PIC16C58B-04I/SS is widely deployed as a replacement for discrete 555-timer + CMOS-logic sequencing boards, offering one chip with 12 outputs to drive relays, solenoids, and indicator stacks. The integrated 8-bit TMR0 with 8-bit prescaler replaces multiple RC timing chains and is configured in software, allowing fast product variants without hardware rework. The watchdog timer with dedicated RC oscillator prevents lockup in unattended machinery, and SLEEP mode supports energy budgets in factory battery-backed controllers.
Recomendado
Remote Sensor Interface Boards
For remote sensor interface boards (soil moisture, weather stations, irrigation valves), the PIC16C58B-04I/SS combines low SLEEP current with the watchdog-driven wakeup, enabling multi-year battery life on 2x AA cells. The 12 I/O pins support I2C/SPI bit-banged to digital sensors or a low-power RF transmitter; the deterministic 4-clock instruction cycle gives precise timing for one-wire or UART-protocol sensor reads. The SSOP-20 surface-mount package suits conformal-coated outdoor PCBAs where through-hole parts would trap moisture.
Recomendado
User Interface Panels
The PIC16C58B-04I/SS drives user-interface panels with matrix keypads (4x4), 7-segment LED displays, and small LCD character modules. Its 12 I/O pins expand via I2C I/O extenders to 32+ lines while the EPROM-based OTP enforces firmware version control - a feature preferred by OEMs worried about counterfeit or unauthorized firmware. The 4 MHz clock is sufficient for software-debounced key scanning at <10 ms response without missing multiplexed display refresh.
Recomendado
Harsh-Environment Sensor Nodes
The PIC16C58B-04I/SS industrial temperature rating and SLEEP-mode operation suit harsh-environment sensor nodes such as HVAC duct probes, freezer alarms, and outdoor air-quality monitors. The fully static CMOS core allows clock-gating down to DC for ultra-low standby power, and the 5 V supply range pairs directly with industrial 24 V bus systems via simple LDO regulators. The 12-bit instruction width and RISC architecture provide deterministic timing for synchronous-sampling sensor acquisition loops at sub-millisecond intervals.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16C58B-04I/SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16C58B-04/SS | PIC16C58B-04I/P | PIC16C58B-04/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 - same | SSOP-20 - same (footprint-compatible per internal MPN list) | SSOP-20 - same (footprint-compatible per internal MPN list) |
| Program Memory | 3 KB EPROM (2K x 12) | 3 KB EPROM (2K x 12) | 3 KB EPROM (2K x 12) | 3 KB EPROM (2K x 12) |
| RAM | 73 bytes | 73 bytes | 73 bytes | 73 bytes |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| I/O Pins | 12 | 12 | 12 | 12 |
| Operating Temperature | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) |
Diferenciadores clave
- Industrial temperature range in SSOP-20 (frente a PIC16C58B-04/SS)
- OTP EPROM enforces firmware stability (frente a PIC16F58A-I/SS)
- Mature PIC16C5X ecosystem with extensive legacy code (frente a PIC16F54-I/SS)
Notas de diseño
The PIC16C58B-04I/SS uses OTP EPROM, so firmware cannot be updated once programmed - develop and debug on a windowed PIC16C58B-04I/JW (CERDIP) sample or migrate to the Flash-based PIC16F58A-I/SS for in-circuit reprogramming. Programming must use a Microchip-approved device programmer (e.g., PICSTART Plus, MPLAB PM3) in high-voltage programming mode.
Route the MCLR pin through a 10 kohm pull-up to VDD and place a 100 nF decoupling cap on VDD (pin 20) within 5 mm of the package. Keep the OSC1/OSC2 traces short (<10 mm) and shield them from high-current switching lines. The SSOP-20 thermal pad is not present, so no thermal via array is required, but a ground pour under the package helps EMI immunity.
The PIC16C58B-04I/SS specifies a 5 V typical supply but the PIC16C5X family supports 2.5 V to 6.25 V operating range for low-voltage variants. Decouple VDD with 100 nF ceramic in parallel with 10 uF tantalum or electrolytic bulk capacitance to handle inrush current during oscillator startup. In SLEEP mode, current drops to <1 uA typical; ensure all I/O pins are tri-stated or driven to defined levels to avoid parasitic current paths.
Información de cumplimiento
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - automotive deployments limited to cabin/passenger-compartment. Choose AEC-Q100 qualified PIC16F58A-E/SS or similar for safety-critical automotive.
