PIC16C58B-04/SS - 8-bit 4MHz OTP MCU 3KB 20-SSOP | Microchip
MPN: PIC16C58B-04/SS ✗ Cuối đờiPIC16C58B-04/SS Tóm tắt
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip integrating a CPU, RAM, non-volatile program memory, and peripherals on a single die. OTP (One-Time Programmable) MCUs use EPROM cells that can be written once by a programmer and are ideal for low-cost, moderate-volume production where in-field firmware updates are not required. Within the broader taxonomy, this part sits as MCU -> 8-bit microcontroller -> embedded controller -> semiconductor, and belongs to Microchip's classic PIC16C5X baseline family, the simplest tier of the PIC architecture hierarchy.
Key features include a 12-bit instruction word, two-level deep hardware stack, direct/indirect/relative addressing modes, 8-bit real-time clock/counter (TMR0), programmable code protection, and a wide operating voltage range from 2.5 V to 6.0 V (datasheet extends to 3.0 V to 5.5 V for the OTP variants). The 20-SSOP package supports surface-mount assembly and is well suited to compact board designs in consumer, appliance, and industrial-control applications.
Architecturally, the PIC16C5X uses a Harvard-style RISC core with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The 12-bit instruction width produces approximately 2:1 code compression over typical 8-bit CISC MCUs, reducing program-memory consumption for the same functional task. The device supports RC, XT, LP, and HS oscillator modes, providing flexibility for cost-sensitive crystal designs as well as low-power 32 kHz watch-crystal operation.
Typical applications include low-cost remote controls, appliance controls, automotive subsystems (non-safety), battery chargers, and simple sensor interfaces. The combination of small footprint, modest memory, and broad peripheral support makes this part a long-standing workhorse for legacy embedded designs where deterministic execution and minimal BOM cost are priorities.
When designing with this MCU, note that the PIC16C5X core has a two-level hardware stack and no interrupts; interrupt-driven code must be written by polling. Always place a 0.1 uF decoupling capacitor within 5 mm of VDD and use a bulk capacitor on the MCLR/VPP reset line to ensure clean power-up behavior.
This page synthesizes distributor pricing, SSOP drop-in alternatives within the PIC16C5X family, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16C58B-04/SS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C58B-04/SS (cùng hình factor và footprint) — khác nhau ở Program Memory Type, Package, Program Memory Size, Operating Temperature Range, Core Architecture.
PIC16C58B-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C58B-04E/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F57-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57C-04I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C56A-04I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C58B-04/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16C5X (8-bit RISC, Harvard) |
| Program Memory Type | OTP (One-Time Programmable EPROM) |
| Program Memory Size | 3 KB (2K x 12 words) |
| RAM | 73 bytes |
| CPU Speed | 4 MHz (max) |
| Instruction Word Width | 12 bits |
| Instruction Set Size | 33 single-word instructions |
| Digital I/O Pins | 12 |
| Timers | 1 x 8-bit (TMR0 with 8-bit prescaler) |
| Stack Depth | 2 levels (hardware) |
| Interrupts | None (polling only) |
| Operating Voltage Range | 2.5 V to 6.0 V (3.0 V to 5.5 V OTP typical) |
| Khoảng nhiệt độ hoạt động | 0 C to +70 C (commercial) |
| Oscillator Modes | RC, XT, LP, HS |
| Hộp | 20-SSOP (5.30 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (unlimited floor life at <30 C / 85% RH) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16C58B-04/SS
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Chân 2 | RA0 — Port A bit 0 (digital I/O) |
| Chân 3 | RA1 — Port A bit 1 (digital I/O) |
| Chân 4 | RA2 — Port A bit 2 (digital I/O) |
| Chân 5 | RA3 — Port A bit 3 (digital I/O) |
| Chân 6 | RB0 — Port B bit 0 (digital I/O, interrupt-on-change on Enhanced parts) |
| Chân 7 | RB1 — Port B bit 1 (digital I/O) |
| Chân 8 | GND — Ground reference |
| Chân 9 | RB2 — Port B bit 2 (digital I/O) |
| Chân 10 | RB3 — Port B bit 3 (digital I/O) |
| Chân 11 | VDD — Positive supply (2.5 V to 6.0 V) |
| Chân 12 | RB4 — Port B bit 4 (digital I/O) |
| Chân 13 | RB5 — Port B bit 5 (digital I/O) |
| Chân 14 | RB6 — Port B bit 6 (digital I/O) |
| Chân 15 | RB7 — Port B bit 7 (digital I/O) |
| Chân 16 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Chân 17 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Chân 18 | RC0 — Port C bit 0 (digital I/O) |
| Chân 19 | RC1 — Port C bit 1 (digital I/O) |
| Chân 20 | RC2 — Port C bit 2 (digital I/O) |
Ứng dụng tiêu biểu
PIC16C58B-04/SS phù hợp cho 6 Áp dụngs: Remote Control Transmitter, White Goods Appliance Control, Battery Charger Controller, Automotive Interior Accessories, Sensor Interface Module, Industrial Timer / Sequencer.
Remote Control Transmitter
The PIC16C58B-04/SS suits low-cost IR/RF remote controls where its 3 KB OTP holds button-scan tables, debounce logic, and transmit-frame encoding, while its 12 I/O pins directly drive matrix keypads (3x4 or 4x3) and the modulator output. The 4 MHz core delivers 1 us instruction cycles, comfortably meeting the 38 kHz carrier timing required for RC5/ NEC protocols. The 20-SSOP footprint drops onto compact handheld PCBs, and the 2.5-6 V supply runs directly from 2 x AA cells.
Được đề xuất
White Goods Appliance Control
In washing machines, dishwashers, and microwave ovens, the PIC16C58B-04/SS replaces electromechanical timers with a deterministic state machine. Its 3 KB OTP stores cycle tables and fault-recovery routines, 73 bytes of RAM handles mode flags and sensor averages, and 12 I/O drives relay banks, triac optocouplers, and 7-segment displays. The RISC core executes one instruction per cycle, ensuring tight timing for zero-crossing triac firing without interrupt latency, and the SSOP-20 package tolerates the thermal environment inside consumer enclosures.
Được đề xuất
Battery Charger Controller
The PIC16C58B-04/SS implements CC/CV charge profiles for NiCd/NiMH/Li-ion packs using TMR0 for PWM generation and ADC-free voltage sensing via resistor-divider comparators. Three KB of OTP holds charge-state look-up tables and timer-based termination logic, while the 2-level hardware stack keeps call chains shallow and predictable. Operating from 3.0-5.5 V, the part runs directly from a regulated USB or wall-adapter rail; its SSOP-20 footprint fits compact charger PCBs alongside power MOSFETs.
Được đề xuất
Automotive Interior Accessories
For non-safety automotive subsystems such as interior lighting, mirror controls, and seat-position presets, PIC16C58B-04/SS provides reliable 8-bit control at automotive cost points. The 12 I/O drive LED drivers and H-bridge enable lines, while TMR0 sequences PWM dimming. Designers migrate to PIC16C58B-04I/SS or -04E/SS when automotive temperature grades (-40 C to +85 C or -40 C to +125 C) are required. The SSOP-20 footprint is compatible with high-vibration PCB assembly processes used in automotive tier-1 builds.
Được đề xuất
Sensor Interface Module
The PIC16C58B-04/SS serves as a low-cost bridge between analog sensors and digital hosts, digitizing thermistor or photodiode inputs via on-chip comparators (where available) or external ADC, then streaming formatted packets over UART bit-banged on any of the 12 I/O pins. Three KB of OTP accommodates linearization tables for NTC thermistors, while 73 bytes of RAM buffers measurement frames. The 4 MHz clock provides precise UART baud-rate generation up to 38.4 kbps at common 4 MHz crystal settings.
Được đề xuất
Industrial Timer / Sequencer
PIC16C58B-04/SS implements multi-stage process timers and sequencers for industrial control panels where deterministic execution matters more than raw throughput. TMR0 with its 8-bit prescaler provides timing resolution from microseconds to minutes, and the 33-instruction RISC core keeps scan cycles predictable. Twelve I/O drive relay coils, status LEDs, and optically isolated enable inputs. The 2.5-6 V supply accepts 5 V PLC logic rails and 24 V industrial rails with external regulation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C58B-04/SS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C58B-04I/SS | PIC16C58B-04E/SS | PIC16F57-I/SS | PIC16C57C-04I/SS | PIC16C56A-04I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) |
| Program Memory | 3 KB OTP (2K x 12) | 3 KB OTP (2K x 12) | 3 KB OTP (2K x 12) | 3 KB Flash | 1 KB OTP (-67%) | 1 KB OTP (-67%) |
| RAM | 73 bytes | 73 bytes | 73 bytes | 72 bytes | 72 bytes | 25 bytes |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 4 MHz |
| Temperature Range | 0 C to +70 C (commercial) | -40 C to +85 C (industrial) | -40 C to +125 C (extended) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| Memory Type | OTP (EPROM) | OTP (EPROM) | OTP (EPROM) | Flash (reprogrammable) | OTP (EPROM) | OTP (EPROM) |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| Lifecycle Status | NRND | NRND | NRND | Active | NRND | NRND |
Bảo phân biệt quan trọng
- Largest OTP memory in PIC16C5X SSOP family (vsPIC16C57C-04I/SS)
- Reprogrammable Flash alternative available (vsPIC16F57-I/SS)
- Commercial temperature rating versus industrial variants (vsPIC16C58B-04I/SS)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 11) and a bulk capacitor (4.7-10 uF) on the same net. The PIC16C58B-04/SS draws very low current during operation (typically <2 mA at 4 MHz, 5 V) but OTP programming pulses on MCLR/VPP draw up to ~25 mA; the bulk capacitor stabilizes VDD during programming. Always sequence MCLR/VPP high-to-low at power-up after VDD reaches 1.5 V minimum, per datasheet DS30453B section on Power-on Reset.
PIC16C5X baseline parts have no hardware interrupts and only a 2-level hardware stack; deeply nested subroutine calls silently overwrite the stack. Keep call chains to 2 levels or convert to iterative state machines. Also note that PORTB on PIC16C5X parts does NOT support internal weak pull-ups - external 10-100 kohm pull-ups are required on any input that needs to be default-high. Source: PIC16C5X datasheet DS30453B.
Route the crystal traces (OSC1/OSC2) short and symmetric, with the load capacitors (typically 15-22 pF for XT, 100-150 pF for LP at 32.768 kHz) placed within 5 mm of the MCU. Keep oscillator traces away from high-current switching nodes (relay coils, triac outputs) to avoid coupling noise into the clock. For HS-mode designs at 4 MHz or above, place a ground guard ring around the crystal to reduce EMI susceptibility.
Estimated: at 4 MHz Fosc, the 1 us instruction cycle allows bit-banged UART up to 57.6 kbps with 7% timing error using the standard PIC16C5X software UART technique. For production designs requiring reliable serial communication, prefer a crystal frequency that divides evenly (e.g., 3.579545 MHz for 300/1200/2400/9600 baud at 0% error) rather than 4 MHz. The internal RC oscillator (if used) introduces additional drift over temperature.
Thông tin tuân thủ
RoHS compliant per Microchip product documentation. AEC-Q100 not applicable for commercial-grade part; choose PIC16C58B-04I/SS or -04E/SS for automotive-grade applications per Microchip PIC16C5X family datasheet DS30453B.