PIC16C58B-20I/SS - 8-Bit 20MHz OTP MCU, 3KB, 20-SSOP | Microchip
부품 번호: PIC16C58B-20I/SS ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.62 | $2.62 |
| 10 | $2.41 | $24.10 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.74 | $1,740.00 |
PIC16C58B-20I/SS 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O on one die, enabling compact embedded control in everything from appliances to industrial sensors. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers, then integrated circuits, then semiconductors. The PIC16C5X family implements a RISC architecture, executing each 12-bit instruction in a single cycle except for program branches, which take two cycles, providing deterministic timing that simplifies real-time firmware design.
Key features of the PIC16C58B-20I/SS include 33 single-word single-cycle instructions, 7 to 8 special-function hardware registers, a two-level deep hardware call stack, direct/indirect/relative addressing modes for both data and instructions, an 8-bit real-time clock/counter (TMR0) with programmable prescaler, a Watchdog Timer with its own on-chip RC oscillator for reliable recovery, and an internal Power-on Reset circuit. The device operates from a 4.5 V to 5.5 V supply, supports 12 I/O pins, and provides programmable code protection to safeguard intellectual property. The 'I' suffix indicates an industrial temperature grade of -40 C to +85 C, while '20' denotes the 20 MHz maximum clock and 'SS' specifies the SSOP-20 package.
The PIC16C58B uses a Harvard-style architecture with separate program and data buses, eliminating fetch/execute conflicts and supporting most instructions in a single 200 ns cycle at 20 MHz. Program memory is OTP (one-time programmable), optimized for low-to-mid volume production where flash reprogrammability is not required, allowing lower per-unit cost than equivalent flash parts in mature designs. The 32-byte RAM and 7 to 8 special-function registers provide a deliberately minimal footprint, ideal for compact state machines and cost-sensitive embedded products.
Typical applications include appliance controllers, automotive body electronics, industrial sensor interfaces, smart-card and security peripherals, low-end consumer electronics, and battery chargers. The 20 MHz instruction throughput suits simple control loops, while the SSOP-20 footprint allows dense PCB layouts in space-constrained designs.
When designing with this MCU, choose either an RC oscillator (lower cost) or a crystal/resonator (higher accuracy) based on timing requirements; the WDT should be enabled in any field-deployed product to recover from firmware faults. Code-protect bits should be set during production programming to prevent unauthorized ROM reads via windowed verification.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC16C5X family, and practical design notes that complement, but do not replace, the official Microchip datasheet.
드롭인 대체품: PIC16C58B-20I/SS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C58B-20I/SS (동일 폼 팩터 및 풋프린트) — 차이점: Package, Operating Temperature, Instruction Set, Timers, Core Architecture.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16C58B-20E/SS
✅ 드롭인✓ 재고 있음
$2.78 / 개
데이터시트 보기 →PIC16C58B-20I/P
✅ 드롭인✓ 재고 있음
$1.55 / 개
데이터시트 보기 →PIC16C58B-04I/P
✅ 드롭인✓ 재고 있음
$1.88 / 개
데이터시트 보기 →PIC16C58B-04/SS
✅ 드롭인✓ 재고 있음
$1.45 / 개
데이터시트 보기 →PIC16C58B-04/P
✅ 드롭인✓ 재고 있음
$2.55 / 개
데이터시트 보기 →PIC16C57C-20I/SS
✅ 드롭인✓ 재고 있음
$0.9 / 개
데이터시트 보기 →PIC16C58B-20I/SS 최대 정격 & 전기적 특성
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Family | PIC16C5X |
| Program Memory Type | OTP EPROM (one-time programmable) |
| Program Memory Size | 3 KB (2K x 12) |
| CPU Speed | 20 MHz |
| Instruction Set | 33 single-word, single-cycle instructions |
| RAM | 32 bytes (data memory) |
| I/O Pins | 12 |
| Timers | 1 x 8-bit (TMR0) with programmable prescaler |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Hardware Stack | 2 levels |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| 동작 온도 | -40 C to +85 C (industrial, 'I' grade) |
| 패키지 | 20-pin SSOP (5.30 mm body) |
| 실장 유형 | Surface Mount |
| Power-on Reset | Yes (internal) |
| Code Protection | Programmable |
| RoHS 상태 | Compliant (per DigiKey listing) |
PIC16C58B-20I/SS 핀 구성
| 핀 1 | RA0 — Bidirectional I/O port A bit 0 |
| 핀 2 | RA1 — Bidirectional I/O port A bit 1 |
| 핀 3 | RA2 — Bidirectional I/O port A bit 2 |
| 핀 4 | RA3 — Bidirectional I/O port A bit 3 |
| 핀 5 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| 핀 6 | OSC1 — Oscillator input / RC oscillator connection |
| 핀 7 | OSC2 — Oscillator output / RC oscillator connection |
| 핀 8 | VSS — Ground reference |
| 핀 9 | T0CKI — Timer0 clock input |
| 핀 10 | RB0 — Bidirectional I/O port B bit 0 |
| 핀 11 | RB1 — Bidirectional I/O port B bit 1 |
| 핀 12 | RB2 — Bidirectional I/O port B bit 2 |
| 핀 13 | RB3 — Bidirectional I/O port B bit 3 |
| 핀 14 | RB4 — Bidirectional I/O port B bit 4 |
| 핀 15 | RB5 — Bidirectional I/O port B bit 5 |
| 핀 16 | RB6 — Bidirectional I/O port B bit 6 |
| 핀 17 | RB7 — Bidirectional I/O port B bit 7 |
| 핀 18 | VDD — Positive supply voltage (4.5 V to 5.5 V) |
| 핀 19 | RC0 — Bidirectional I/O port C bit 0 |
| 핀 20 | RC1 — Bidirectional I/O port C bit 1 |
일반적인 애플리케이션
PIC16C58B-20I/SS 적합 용도: 6 애플리케이션s: Appliance Control Boards, Automotive Body Electronics, Industrial Sensor Interfaces, Smart Card and Security Peripherals, Battery Charger Controllers, Low-End Consumer Electronics.
Appliance Control Boards
PIC16C58B-20I/SS fits appliance controllers (washing machines, dishwashers, microwave ovens) where its 20 MHz RISC throughput handles relay sequencing, sensor polling, and user-interface scanning with deterministic timing. The 3 KB OTP memory stores motor-control state machines, sensor-debounce tables, and fault-handling routines for years of reliable operation. Its 4.5 V to 5.5 V supply range matches rectified mains-derived rails. The -40 C to +85 C industrial temperature grade handles under-cabinet heat, while SSOP-20 supports dense single-sided PCB layouts typical of cost-engineered appliance boards.
추천
Automotive Body Electronics
PIC16C58B-20I/SS powers body-control modules for window lifters, mirror adjusters, seat controllers, and lighting timers. Its 12 I/O pins directly drive small solenoids, LEDs, and H-bridge enable lines without external mux logic. The 20 MHz CPU processes multiplexed switch inputs and PWM dimming in real time. Automotive 12 V rails feed a 5 V regulator down to the 58B's 4.5 V to 5.5 V Vdd. OTP memory locks calibration data permanently. Industrial temperature range covers cabin and underhood-adjacent locations, while SSOP-20 fits compact modules tucked behind trim panels.
추천
Industrial Sensor Interfaces
PIC16C58B-20I/SS serves as the controller for industrial sensor transmitters, RTD conditioners, and 4-20 mA loop interfaces. Its 20 MHz instruction throughput performs linearization math for thermocouple or load-cell inputs within tight cycle budgets. The 8-bit TMR0 with prescaler generates accurate timebases for sigma-delta or PWM-modulated output stages. The Watchdog Timer with dedicated RC oscillator recovers the MCU from EMI-induced firmware faults common on factory floors. Industrial temperature grade and SSOP-20 footprint fit DIN-rail mounted transducer enclosures and IP67-sealed field instruments.
추천
Smart Card and Security Peripherals
PIC16C58B-20I/SS is well-suited to low-cost smart-card readers, token authenticators, and access-control peripherals. Its 3 KB OTP holds ISO 7816 framing routines, challenge-response protocols, and small cryptographic state machines. The deterministic single-cycle RISC core delivers predictable response timing, critical for cryptographic handshakes. Hardware code-protect bits guard intellectual property of the authentication logic against unauthorized windowed verification. The 12 I/O pins connect to card contacts, status LEDs, and buzzer drivers. Compact SSOP-20 footprint supports USB-token form factors.
추천
Battery Charger Controllers
PIC16C58B-20I/SS runs charger control loops for NiCd, NiMH, and small Li-ion packs. Its 8-bit TMR0 with prescaler creates accurate charge-time accumulators and -dV termination checks for NiMH charging. The Watchdog Timer and Power-on Reset ensure the controller recovers from brownouts on weak AC adapters. The 4.5 V to 5.5 V supply matches single-cell Li-ion plus small LDO or direct USB-VBUS-derived rails. Industrial temperature rating covers outdoor or in-vehicle chargers. SSOP-20 footprint keeps the controller small in compact wall-wart and cradle charger designs.
추천
Low-End Consumer Electronics
PIC16C58B-20I/SS drives remote controls, electronic toys, kitchen timers, and educational kits. Its 33-instruction RISC core is trivial to teach, making it a long-standing educational MCU choice. The 3 KB OTP holds key-debounce matrices, IR transmission codes, sound-pattern sequences, and LCD-driver state machines for compact devices. Sleep-friendly design with Watchdog Timer extends battery life in remote controls and wireless toys. Industrial temperature grade accommodates indoor environments year-round. The SSOP-20 surface-mount package supports high-density, low-cost two-layer consumer PCBs.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C58B-20I/SS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16C58B-20E/SS | PIC16C58B-04/SS | PIC16C57C-20I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Program Memory | 3 KB OTP | 3 KB OTP | 3 KB OTP | 2 KB OTP |
| Max Clock Speed | 20 MHz | 20 MHz | 4 MHz | 20 MHz |
| RAM | 32 bytes | 32 bytes | 32 bytes | 32 bytes |
| I/O Pins | 12 | 12 | 12 | 12 |
| Operating Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 3.0 V to 5.5 V |
| Temperature Grade | Industrial -40C to +85C | Extended -40C to +125C | Commercial 0C to +70C | Industrial -40C to +85C |
주요 차별점
- Highest memory density in PIC16C5X SSOP-20 line (vs PIC16C57C-20I/SS)
- Full 20 MHz throughput (vs PIC16C58B-04/SS)
- Industrial temperature grade (vs PIC16C58B-20E/SS)
설계 노트
PIC16C58B-20I/SS operates from a 4.5 V to 5.5 V supply. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of pin 18 and a bulk 10 uF tantalum or aluminum electrolytic at the regulator output. The internal Power-on Reset holds the part in reset until VDD crosses the BOR threshold; ensure VDD ramp time exceeds the BOR rise specification to avoid incomplete-reset startup states. Estimated: 5 V VDD with 50 mA peak load draws less than 250 mW, well within SSOP-20 thermal limits.
OTP program memory cannot be erased or rewritten. Verification of all firmware logic, calibration data, and timing constants must be performed on windowed sample parts or a PIC16F equivalent before committing to production OTP. Setting the code-protect bit is irreversible and prevents subsequent windowed verification, so confirm signed-off firmware before programming. The 2-level hardware stack overflows if more than two CALLs are nested - rewrite deep subroutines iteratively or upgrade to a PIC16F family with deeper stack.
Route the OSC1/OSC2 crystal traces short and symmetric, with a ground guard ring, to minimize EMI pickup on low-frequency oscillators. Place decoupling capacitor returns directly to the VSS pin 8 via a short, wide trace. The MCLR/VPP pin on pin 5 needs a 10 kohm pull-up to VDD and a 100 nF cap to ground for reset-noise immunity; do not leave MCLR floating. The SSOP-20 thermal pad is not present - rely on SSOP-20's exposed lead frame for heat spreading.
규정 준수 정보
RoHS compliance confirmed via DigiKey product listing; REACH, halogen-free, and conflict-minerals status not stated on retrieved web pages and marked unknown. Part is not AEC-Q100 qualified - for automotive safety applications, choose an AEC-Q100-qualified Microchip MCU or perform system-level qualification.
