PIC16C58BT-20I/SO - 8-Bit 20MHz 3KB OTP MCU | Microchip
N.º da peça: PIC16C58BT-20I/SO ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.42 | $5,42 |
| 10 | $4.88 | $48,80 |
| 100 | $4.21 | $421,00 |
| 500 | $3.65 | $1.825,00 |
| 1.000 | $3.12 | $3.120,00 |
PIC16C58BT-20I/SO Visão geral
An OTP microcontroller (One-Time Programmable MCU) is a single-chip computer whose on-chip program memory can be written exactly once by the end user using a device programmer, after which the code is permanent. OTP MCUs sit in the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC. Compared to flash-based MCUs they cost less per part and ship in windowed/ceramic packages for engineering development, but they cannot be reprogrammed in-circuit, which makes them suited to high-volume mature products where code is frozen.
Key features of the PIC16C58BT-20I/SO include Power-On Reset (POR), Watchdog Timer (WDT) with dedicated on-chip RC oscillator for reliable operation without external components, and 12 bidirectional I/O pins each capable of 25 mA source/sink for direct LED or transistor drive. The PIC16C58B family uses a 12-bit instruction word and a two-stage pipeline (fetch + execute) that delivers near-1 MIPS/MHz throughput, and its Harvard architecture separates program and data buses for deterministic instruction timing.
Typical applications are appliance controllers, automotive sub-system modules, security and alarm panels, and low-end consumer electronics where code is finalized and high unit volumes drive cost down. The 25 mA I/O sink/source eliminates many driver transistors. Note that the 'B' suffix denotes the enhanced PIC16C58B die (vs. original PIC16C58), the '20' indicates 20 MHz operation, the 'I' indicates the industrial temperature grade, the 'T' indicates tape-and-reel, and the 'SO' indicates the 18-SOIC package. Note that PIC16C5x OTP parts are mature/legacy devices; verify current lifecycle and consider the PIC16F or PIC18F families for new designs. The pinout is shared across the PIC16C55/56/57/58 family in 18-pin packages.
Alternativas drop-in para PIC16C58BT-20I/SO — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16C58BT-20I/SO (mesmo formato e footprint) — diferindo em Package, Program Memory Size, Program Memory Type, Mounting Type, Family.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16C58B-20I/SO
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16C58B-20E/SO
✅ Drop-In✓ Em estoque
$1.85 / unidade
Ver ficha técnica →PIC16C58BT-20I/SO Classificações máximas e características elétricas
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Family | PIC16C5x (PIC16C58B enhanced die) |
| Program Memory Type | OTP (One-Time Programmable EPROM) |
| Program Memory Size | 3 KB (2K x 12 instructions) |
| RAM | 73 bytes |
| Data EEPROM | Not present |
| Frequência máxima de clock | 20 MHz |
| Instruction Word Width | 12 bits |
| I/O Pins | 12 |
| I/O Sink/Source Current | 25 mA per pin |
| Timers | 1 x 8-bit (TMR0) + Watchdog Timer (WDT) |
| ADC | None |
| Temperatura de operação | -40C to +85C (industrial, 'I' suffix) |
| Encapsulamento | 18-pin SOIC (SO) |
| Tipo de montagem | Surface Mount |
| Peripherals | POR (Power-On Reset), WDT |
| Pipeline | 2-stage (fetch + execute) |
Configuração de pinos do PIC16C58BT-20I/SO
| Pino 1 | NC — No connection (reserved on PIC16C58B family) |
| Pino 2 | OSC1/CLKIN — Oscillator input / external clock input |
| Pino 3 | OSC2/CLKOUT — Oscillator output / clock output |
| Pino 4 | MCLR/Vpp — Master clear reset (active low) / programming voltage input |
| Pino 5 | Vss — Ground reference |
| Pino 6 | RB0 — Bidirectional I/O port B, bit 0 |
| Pino 7 | RB1 — Bidirectional I/O port B, bit 1 |
| Pino 8 | RB2 — Bidirectional I/O port B, bit 2 |
| Pino 9 | RB3 — Bidirectional I/O port B, bit 3 |
| Pino 10 | RB4 — Bidirectional I/O port B, bit 4 |
| Pino 11 | RB5 — Bidirectional I/O port B, bit 5 |
| Pino 12 | RB6 — Bidirectional I/O port B, bit 6 |
| Pino 13 | RB7 — Bidirectional I/O port B, bit 7 |
| Pino 14 | Vdd — Positive supply voltage |
| Pino 15 | RC0 — Bidirectional I/O port C, bit 0 |
| Pino 16 | RC1 — Bidirectional I/O port C, bit 1 |
| Pino 17 | RC2 — Bidirectional I/O port C, bit 2 |
| Pino 18 | RC3 — Bidirectional I/O port C, bit 3 |
Aplicações típicas
PIC16C58BT-20I/SO é adequado para 6 aplicaçãos: Appliance Control Boards, Automotive Sub-System Modules, Security and Alarm Panels, Low-End Consumer Electronics, Industrial Sensor Interface Modules, LED Display Drivers and Chasers.
Appliance Control Boards
The PIC16C58BT-20I/SO fits appliance control boards because its 25 mA I/O sink/source drives relays and triacs directly without external transistors, while the 3 KB OTP program memory holds fixed control algorithms for washing machines, dishwashers, and microwave ovens. The 20 MHz core executes a typical 8-bit control loop in tens of microseconds, and the integrated Watchdog Timer recovers from supply or ESD glitches. Industrial temperature rating covers laundry-room and kitchen environments.
Recomendado
Automotive Sub-System Modules
In automotive sub-systems such as seat controllers, mirror adjusters, and HVAC flap motors, the PIC16C58BT-20I/SO provides deterministic 8-bit control with the PIC16C5x family's proven reliability. The industrial -40C to +85C grade handles cabin environments, while the 12 I/O pins scan switches and drive small actuators. Designers migrate to PIC16F equivalents (AEC-Q100 qualified) when automotive certification is mandatory for the end product.
Recomendado
Security and Alarm Panels
The PIC16C58BT-20I/SO suits security alarm panels because the OTP program memory locks the firmware to prevent code extraction by attackers, and the Watchdog Timer plus Power-On Reset ensure the panel recovers from brown-out events. 12 I/O pins scan multiple zone inputs and drive sirens or LED indicators directly. Industrial temperature tolerance accommodates unheated garages and warehouses.
Recomendado
Low-End Consumer Electronics
For cost-sensitive consumer products such as remote controls, toy electronics, and small kitchen gadgets, the PIC16C58BT-20I/SO delivers the lowest BOM cost in the PIC family at high volumes. The 3 KB OTP memory holds fixed infrared protocols or motor-control sequences, and 73 bytes of RAM is ample for state-machine logic. The 18-SOIC package fits compact hand-held enclosures.
Recomendado
Industrial Sensor Interface Modules
The PIC16C58BT-20I/SO works in industrial sensor-interface modules that read digital sensors and drive indicator LEDs or relays. Although the PIC16C58BT-20I/SO lacks an internal ADC, designers connect external ADCs (e.g., MCP3002) via the SPI-compatible bit-banging routines supported by the 12 I/O pins. Industrial temperature grade and integrated Watchdog Timer suit factory-floor installations.
Recomendado
LED Display Drivers and Chasers
The PIC16C58BT-20I/SO is well-suited to LED chasers and decorative lighting controllers because each of its 12 I/O pins sources/sinks up to 25 mA, directly driving common LEDs without driver transistors. The 20 MHz core multiplexes multiple 7-segment or matrix displays in software with no flicker artifacts. OTP memory protects the lighting sequence from unauthorized copying in commercial products.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16C58BT-20I/SO — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16C58B-20I/SO | PIC16C58B-20E/SO | PIC16F630-I/SL |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC (same) | 18-SOIC (same) | 14-SOIC (different) |
| Core | 8-bit PIC RISC | 8-bit PIC RISC | 8-bit PIC RISC | 8-bit PIC RISC |
| Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Program Memory | 3 KB OTP | 3 KB OTP | 3 KB OTP | 1.75 KB Flash |
| RAM | 73 bytes | 73 bytes | 73 bytes | 64 bytes |
| I/O Pins | 12 | 12 | 12 | 10 |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +125C (E grade) | -40C to +85C |
| ADC | None | None | None | 10-bit ADC |
| Reprogrammability | One-Time Programmable | One-Time Programmable | One-Time Programmable | Flash (in-circuit) |
Principais diferenciais
- Enhanced PIC16C58B die with improved timer and reset architecture (vs PIC16C58-20/SO (original PIC16C58 die))
- Industrial -40C to +85C temperature grade from the factory (vs PIC16C58B-20/SO (no 'I' suffix))
- Tape-and-reel packaging for high-volume SMT production (vs PIC16C58B-20I/SO (tube packaging))
- Lower unit cost than flash-based PIC16F equivalents (vs PIC16F630-I/SL)
Notas de projeto
The PIC16C58BT-20I/SO typically operates from a single 5 V supply on Vdd (pin 14) with Vss (pin 5) as ground; the exact Vdd tolerance range was not confirmed by the verified web data and should be cross-checked against the Microchip datasheet before finalizing the power design. Add a 0.1 uF ceramic decoupling capacitor as close as practical to Vdd and a bulk capacitor (e.g., 10 uF tantalum) for transient load regulation. The MCLR/Vpp pin (4) should be pulled to Vdd through a 10 kohm resistor for normal operation; in noisy environments add a 100 nF capacitor from MCLR to Vss to filter glitches.
Estimated: A common design mistake with the PIC16C58B family is forgetting that pin 1 is reserved/no-connection on this specific 18-SOIC variant, which differs from the PIC16C55/56/57 where pin 1 carries an I/O function. Designers porting code from PIC16C55 must remove any references to pin 1. Additionally, the OTP memory cannot be erased, so any code bug discovered after programming is permanent; plan for windowed/UV-erasable PIC16C58B-20/JW parts during development and switch to OTP for production.
The 18-SOIC package has a 1.27 mm pin pitch, requiring fine-pitch PCB layout; reserve a copper pour under the exposed die pad area (if present) and route the 12 I/O signals on inner layers if the board is dense. Place the oscillator crystal or resonator within 5 mm of pins 2 and 3 with short traces, and surround the MCLR network with a ground guard ring to suppress ESD-induced resets. For automated test, expose Vdd, Vss, MCLR, and one I/O pin to test points.
Informações de conformidade
RoHS, REACH, lead-free, and halogen-free status were not confirmed by the verified web data and should be cross-checked with Microchip's product-compliance documentation. The PIC16C58B family is not AEC-Q100 qualified; automotive designs should migrate to PIC16F or PIC18F AEC-Q100 parts. Microchip publishes an annual Conflict Minerals Report.