PIC16C58B-04/P - 8-Bit 4MHz OTP MCU 3KB | Microchip
MPN: PIC16C58B-04/P ✗ انتهى عمره الإنتاجيPIC16C58B-04/P نظرة عامة
What is an 8-bit OTP microcontroller? An 8-bit OTP microcontroller is a small, self-contained computer-on-a-chip built around an 8-bit data path, with non-volatile program memory that can be written exactly once. OTP parts sit in the hierarchy: microcontroller -> embedded controller -> semiconductor IC, and they belong to the broader class of microcontrollers (MCU) which also includes Flash-based and ROM-based variants. The OTP nature of the PIC16C58B makes it suited for low-to-medium volume production where mask-ROM economics are not yet justified.
Key features include 33 single-word single-cycle RISC instructions, a two-level deep hardware stack, 8-bit real-time clock/counter (TMR0), direct/indirect/relative addressing modes, and a Watchdog Timer with on-chip RC oscillator for reliable operation. The wide operating voltage range of 2.5V to 6.0V (with the -04 speed grade optimized at 4 MHz) and CMOS low-power architecture enable battery-friendly designs. All PIC16C5X family members are fully static, allowing the clock to be stopped without losing register contents.
Architecturally, the PIC16C58B uses a Harvard architecture with separate program and data buses, plus a 12-bit instruction word that delivers approximately 2:1 code compression versus competing 8-bit MCUs in its class. Seven or eight special-function hardware registers provide all CPU state, and the EPROM-based program memory (windowed for prototype JW parts, opaque for production OTP) is programmed via Microchip's standard serial programming interface.
Typical applications include low-cost consumer appliances, automotive body controllers, industrial timers, sensor signal conditioners, simple motor control loops, and battery-powered remote controllers where the PIC16C58B's small footprint, low cost, and deterministic interrupt-free execution provide an attractive BOM reduction. The 12 I/O pins are sufficient for keypad scanning, LED multiplexing, and basic serial-bit-banged interfaces.
When designing with this part, note that the PIC16C5X family lacks interrupts; all I/O servicing must be polled. Code protection is provided via EPROM fuse bits - enable CP mode for production firmware confidentiality. Use Microchip's MPASM assembler and PICSTART Plus or PICkit 1 programmers for development.
This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
بدائل مباشرة لـ PIC16C58B-04/P — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16C58B-04/P (نفس عامل الشكل والبصمة) — يختلف في Package, Core Architecture, Program Memory Type, Program Memory Size, Timers.
PIC16C57C-40/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C57-XT/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C58B-04I/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C58B-20/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C57C-04/P
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16C56-XT/P
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16C58B-04/P الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit RISC |
| CPU Speed | 4 MHz |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12) |
| RAM | 73 bytes |
| I/O Pins | 12 |
| Instruction Set | 33 single-word, single-cycle instructions |
| Instruction Width | 12 bits |
| Stack Depth | 2 levels (hardware) |
| Timers | 1 x 8-bit (TMR0) |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| Operating Voltage | 2.5 V to 6.0 V |
| درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| العلبة | 18-pin PDIP (0.300 inch, 7.62 mm) |
| نوع التركيب | Through-Hole |
| حالة RoHS | Compliant (lead-free PDIP) |
تكوين أطراف PIC16C58B-04/P
| دبوس 1 | RA2 — Port A bit 2 (bidirectional I/O) |
| دبوس 2 | RA3 — Port A bit 3 (bidirectional I/O) |
| دبوس 3 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| دبوس 4 | RA0 — Port A bit 0 (bidirectional I/O) |
| دبوس 5 | RA1 — Port A bit 1 (bidirectional I/O) |
| دبوس 6 | RB0 — Port B bit 0 (bidirectional I/O) |
| دبوس 7 | RB1 — Port B bit 1 (bidirectional I/O) |
| دبوس 8 | RB2 — Port B bit 2 (bidirectional I/O) |
| دبوس 9 | RB3 — Port B bit 3 (bidirectional I/O) |
| دبوس 10 | RB4 — Port B bit 4 (bidirectional I/O) |
| دبوس 11 | RB5 — Port B bit 5 (bidirectional I/O) |
| دبوس 12 | RB6 — Port B bit 6 (bidirectional I/O) |
| دبوس 13 | RB7 — Port B bit 7 (bidirectional I/O) |
| دبوس 14 | RC0 — Port C bit 0 (bidirectional I/O) |
| دبوس 15 | RC1 — Port C bit 1 (bidirectional I/O) |
| دبوس 16 | /MCLR/Vpp — Master Clear reset (active-low) / Programming voltage input |
| دبوس 17 | OSC2/CLKOUT — Oscillator crystal output / Clock output (Fosc/4) |
| دبوس 18 | Vdd — Positive supply voltage (2.5 V to 6.0 V) |
التطبيقات النموذجية
PIC16C58B-04/P مناسب لـ 6 التطبيقs: Low-Cost Consumer Appliance Controller, Automotive Body Electronics Module, Industrial Timer and Counter, Sensor Signal Conditioner with PWM Output, Battery-Powered Remote Controller, Simple LED Display Driver.
Low-Cost Consumer Appliance Controller
The PIC16C58B-04/P fits low-cost consumer appliance controllers because of its small 18-pin PDIP footprint, 3KB OTP memory sufficient for appliance state machines, and 12 I/O pins that directly drive relays, LEDs, and keypads. With 4 MHz CPU and 33 single-cycle RISC instructions, the part executes scan loops fast enough for debounced keypads and PWM-style soft-start of TRIAC-driven loads. Unlike Flash MCUs, the OTP memory protects against firmware reverse-engineering at low BOM cost. Power consumption of CMOS design plus 2.5V minimum operation enables battery-backed real-time clock circuits in microwave ovens, washing machines, and rice cookers. Recommended companion parts: MCP100 voltage supervisor, MOC3021 optoisolator, ULN2003 driver array.
موصى به
Automotive Body Electronics Module
For automotive body electronics such as window lift controllers, mirror adjusters, and seat position memories, the PIC16C58B-04/P delivers the ruggedness of an industrial-temperature PIC16C5X with 12 I/O for H-bridge enable, Hall-sensor feedback, and LED diagnostics. The 4 MHz core and deterministic instruction execution (no interrupt latency) simplify timing analysis for safety-critical loops. According to the datasheet, the 2.5V to 6.0V Vdd range tolerates automotive cranking transients when paired with a TVS diode. Designers migrating to newer automotive programs should select the PIC16C58B-04I/P (industrial temperature) or migrate to PIC16F59 Flash with AEC-Q100 qualification. Companion parts: VNQ660SP high-side driver, LM2931 LDO, TJA1050 CAN (for higher-end modules).
موصى به
Industrial Timer and Counter
The PIC16C58B-04/P is well-suited to industrial timer/counter applications such as conveyor controllers, process-time annunciators, and machine cycle counters. The on-chip 8-bit TMR0 with external T0CKI input captures up to 4 MHz event counts; the 33-instruction RISC core handles BCD math in tight loops without overflow risk. The 18-pin PDIP package is friendly to hand-soldered prototyping and field-service replacements. The Watchdog Timer with on-chip RC oscillator provides fail-safe recovery from EMI-induced code lockup per industrial IEC 61000-4-2 immunity practice. Pair with a 74HC4051 analog MUX to expand input count, or with an ICL7660 charge pump to drive a negative LCD bias.
موصى به
Sensor Signal Conditioner with PWM Output
Use PIC16C58B-04/P as a sensor signal conditioner where a low-cost MCU digitizes a thermistor, photocell, or resistive bridge and outputs a PWM or pulse-train proportional to the measurement. With 12-bit instruction word and 4 MHz CPU, the part performs averaging and linearization routines within milliseconds while consuming only 2 mA active current at 5V. The 73-byte RAM holds 8-10 sample windows for moving-average filtering. The OTP memory protects calibration coefficients from field tampering - useful in HVAC duct sensors and irrigation moisture probes. For isolated 4-20 mA loop output, pair with XTR105; for serial output, bit-bang UART at 2400 baud is feasible without a hardware UART.
موصى به
Battery-Powered Remote Controller
The PIC16C58B-04/P enables compact battery-powered remote controllers for ceiling fans, garage doors, and RF key fobs. CMOS low-power design, 2.5V minimum Vdd, and ability to stop the clock (fully static core) allow deep-sleep current under 1 uA when idle - extending coin-cell battery life to multiple years. The 12 I/O pins directly drive 4x3 matrix keypads and IR LEDs without external logic. The OTP EPROM stores unique device IDs or rolling-code algorithms at zero per-unit programming overhead. Pair with a 433 MHz SAW-stabilized transmitter module such as the QAM-TX1 or an IR LED driver circuit for line-of-sight control.
موصى به
Simple LED Display Driver
Drive 7-segment LED displays, dot-matrix panels, or Charlieplexed LED arrays with PIC16C58B-04/P using software-multiplexed scanning. The 4 MHz instruction cycle supports refresh rates above 100 Hz for 8-digit displays without visible flicker. The 12 I/O pins drive two BCD-to-7-segment decoder ICs (74LS47) plus digit-select transistors; alternatively, the part can sink LED cathodes directly with 25 mA per pin. The OTP memory locks the multiplexing pattern and brightness-PWM values at production time, eliminating external configuration EEPROMs. Pair with ULN2003 for high-voltage/common-anode digit drivers or use TPIC6B595 power shift registers for high-density dot-matrix panels.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16C58B-04/P — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16C57C-40/P | PIC16C57-XT/P | PIC16C58B-04I/P | PIC16C58B-20/P | PIC16C57C-04/P | PIC16C56-XT/P |
|---|---|---|---|---|---|---|---|
| Package | 18-pin PDIP | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3 KB OTP | 4 KB OTP | 2 KB OTP | 3 KB OTP (same die) | 3 KB OTP (same die) | 4 KB OTP | 1 KB OTP |
| Max CPU Clock | 4 MHz | 40 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 4 MHz |
| RAM | 73 bytes | 72 bytes | 72 bytes | 73 bytes | 73 bytes | 72 bytes | 72 bytes |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Operating Temperature | 0 C to +70 C (commercial) | 0 C to +70 C | 0 C to +70 C | -40 C to +85 C (industrial) | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM (same) | OTP EPROM (same) | OTP EPROM | OTP EPROM |
أبرز الفروقات
- Wider memory vs lower-end PIC16C5X family (مقابلPIC16C56-XT/P)
- Industrial temperature range option in same footprint (مقابلPIC16C58B-04I/P)
- Faster clock grade available in same package (مقابلPIC16C58B-20/P)
- Code protection via EPROM fuse (مقابلPIC16F57 (Flash))
ملاحظات التصميم
The PIC16C5X family has NO interrupt controller - all I/O events must be polled. Code relying on interrupts will not port from PIC16F or PIC18 devices without architectural rewrite. Additionally, the 2-level hardware stack means CALL depth is limited to 2; deeply nested subroutines will silently corrupt the return PC. Use iterative algorithms or inline code instead of recursion. The /MCLR pin must be pulled high via 10 kohm resistor; leaving it floating causes erratic reset behavior.
Although the PIC16C58B-04/P runs down to 2.5V, the 4 MHz maximum clock rating only applies at Vdd >= 4.5V. For 3.3V designs, derate the clock to 2 MHz or 1 MHz to avoid internal timing-margin violations. Brown-out detection is not internal - add a MCP100 supervisor on /MCLR to guarantee a clean reset when Vdd drops below 4.5V in 5V systems, or below 3.0V in 3.3V systems. Decouple Vdd with a 100 nF ceramic capacitor placed within 5 mm of pin 18.
Place the crystal or resonator within 10 mm of pins 17 (OSC2) and 18 (OSC1) to minimize parasitic capacitance. For ceramic resonators with built-in capacitors, the layout is forgiving; for discrete crystals, add the manufacturer-recommended load capacitors (typically 15-33 pF) from each oscillator pin to ground. Keep high-current switching traces (relay drivers, TRIAC gates) at least 5 mm away from the oscillator network to prevent injected noise from corrupting the system clock.
Pin 14 (/MCLR/Vpp) is dual-function: in normal operation it is the master-clear reset input and must be pulled high via 10 kohm; in programming mode it receives Vpp (typically 13.0 V to 13.5 V). Separate the Vpp trace from any sensitive analog signals. For in-circuit programming access, expose pins 16 (OSC1), 17 (OSC2), 14 (/MCLR), 15 (GND/Vss), and 18 (Vdd) to a 5-pin header. Leave RB7 and RB6 accessible for ICSP if a future migration to Flash PIC16F57 is planned.
PIC16C58B-04/P outputs sink/source up to 25 mA per pin, but the total Vdd current must stay below 200 mA and total GND current below 200 mA. When driving LEDs directly, insert a 220-ohm series resistor to limit current to 15 mA per pin at 5V Vdd. For higher-current loads, buffer with ULN2003 or TPIC6B595. To bit-bang UART at 9600 baud reliably, the 4 MHz instruction cycle (250 ns) leaves only ~104 instructions per bit period - use a tight assembly loop and disable the Watchdog Timer during reception.
معلومات الامتثال
RoHS-compliant per Microchip product page. Lead-free PDIP package. Not AEC-Q100 qualified - select AEC-Q100 automotive-grade parts for safety-critical applications. PIC16C58B-04/P is classified NRND by Microchip as of 2026-09-17.
