PIC16C58B-04/SO - 4MHz 8-Bit OTP MCU, 3KB | Microchip
MPN: PIC16C58B-04/SO ✗ Cuối đờiPIC16C58B-04/SO Tóm tắt
A PIC16C5X microcontroller is a member of the 8-bit microcontroller family that uses a RISC architecture with only 33 single-word, single-cycle instructions, providing 2:1 code compression over other 8-bit microcontrollers in its class. All instructions execute in a single instruction cycle (200 ns at 20 MHz) except for program branches which take two cycles, enabling predictable deterministic control. The architecture includes seven or eight special-function hardware registers, direct/indirect/relative addressing modes, and a watchdog timer for reliable unattended operation.
Key features include the 4 MHz oscillator (the -04 speed grade), brown-out detection support, an 8-bit real-time clock/counter (TMR0) with 8-bit prescaler, power-on reset, and an operating voltage range of 2.5 V to 5.5 V. The OTP (one-time-programmable) program memory allows factory or field programming using a standard device programmer, while the SOIC-18 package supports hand-solderable surface-mount assembly. The wide VDD range and CMOS design also deliver extremely low power consumption, with typical supply current under 2 mA at 5 V/4 MHz and standby current in the microamp range.
The device uses a Harvard architecture with separate code and data buses, a 12-bit wide instruction word, and an 8-bit wide data path. The 12 I/O pins are bidirectional with individually programmable direction registers, and several pins can be configured for alternate functions such as TMR0 clock input, interrupt, or device reset. This architecture is field-proven in millions of low-cost embedded products and is supported by a mature toolchain including MPLAB IDE, MPASM assembler, and ICD/debug tools.
Typical applications include consumer appliance controls, simple sensor interfaces, LED driver controllers, battery chargers, automotive body electronics, industrial timers and counters, and low-cost replacement of discrete logic. The 4 MHz speed grade is well-suited to sub-1 MIPS control tasks where deterministic response and minimal BOM cost matter more than raw throughput.
When designing with this device, the OTP memory must be programmed before final assembly using a compatible device programmer such as MPLAB PM3 or PICSTART Plus. Because OTP parts cannot be reprogrammed in-circuit, firmware validation should be performed on a JW or windowed version during development. The wide operating voltage (2.5 V to 5.5 V) allows direct connection to both 3.3 V and 5 V systems without level shifters.
This page synthesizes distributor pricing, parametric comparison with same-family and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers source and qualify the part for production.
Bộ thay thế dễ dàng lắp đặt cho PIC16C58B-04/SO — 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/SO (cùng hình factor và footprint) — khác nhau ở Package, Timers, Watchdog Timer, Core Architecture, Instruction Cycle Time.
PIC16C58B-04I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C58B-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C58BT-04I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C58B-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F57-I/SO
✅ Drop-In✗ Hết hàng
$1.21 / Đơn vị
Xem tài liệu →PIC16C58B-04/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit RISC (PIC16C5X family, Harvard) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12) |
| Data RAM | 73 bytes |
| Maximum CPU Frequency | 4 MHz |
| Instruction Set Size | 33 single-word instructions |
| Instruction Word Width | 12 bits |
| I/O Pins | 12 |
| Timers | 1 x 8-bit (TMR0 with 8-bit prescaler) |
| Hardware Stack | 2-level deep |
| Operating Voltage (VDD) | 2.5 V to 5.5 V |
| Supply Current (typ. 5V/4MHz) | < 2 mA (typical, see datasheet) |
| Watchdog Timer | Yes |
| Brown-out Reset | Yes |
| Power-on Reset | Yes |
| Hộp | 18-pin SOIC (SO, 300-mil) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | 0C to +70C (commercial) |
| Lead-Free | Yes (per Microchip product page) |
Cấu hình chân PIC16C58B-04/SO
| Chân 1 | RA2 — Bidirectional I/O port A bit 2 |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 3 | RA4/T0CKI — Bidirectional I/O port A bit 4 / TMR0 clock input |
| Chân 4 | /MCLR — Master Clear (active-low reset input) |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O port B bit 0 / external interrupt |
| Chân 7 | RB1 — Bidirectional I/O port B bit 1 |
| Chân 8 | RB2 — Bidirectional I/O port B bit 2 |
| Chân 9 | RB3 — Bidirectional I/O port B bit 3 |
| Chân 10 | RB4 — Bidirectional I/O port B bit 4 |
| Chân 11 | RB5 — Bidirectional I/O port B bit 5 |
| Chân 12 | RB6 — Bidirectional I/O port B bit 6 |
| Chân 13 | RB7 — Bidirectional I/O port B bit 7 |
| Chân 14 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| Chân 15 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Chân 16 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Chân 17 | RA0 — Bidirectional I/O port A bit 0 |
| Chân 18 | RA1 — Bidirectional I/O port A bit 1 |
Ứng dụng tiêu biểu
PIC16C58B-04/SO phù hợp cho 6 Áp dụngs: Consumer Appliance Control, LED Driver and Lighting Controller, Battery Charger and Power Management, Automotive Body Electronics, Industrial Timer and Counter, Low-Cost Replacement of Discrete Logic.
Consumer Appliance Control
The PIC16C58B-04/SO fits consumer appliance control boards (coffee makers, toasters, washing machines) because its 3 KB OTP memory, 12 I/O pins, and 4 MHz RISC core deliver enough processing power for keypad scanning, LED driving, and simple state-machine logic. The 2.5 V to 5.5 V operating range allows direct connection to 3.3 V or 5 V sensor and triac driver rails without level shifters. With a 250 ns instruction cycle, the MCU can debounce mechanical switches and drive 7-segment displays in real time while leaving headroom for a small user-interface routine. The wide operating voltage and CMOS design also keep standby current low, important for Energy Star-rated appliances.
Được đề xuất
LED Driver and Lighting Controller
The PIC16C58B-04/SO can drive multi-channel LED arrays in decorative lighting, signage, and architectural fixtures because its 12 I/O pins are sufficient to PWM-control 8-10 LED channels with software bit-banging at 4 MHz. The 8-bit TMR0 with 8-bit prescaler can generate the timebase for software PWM dimming and color-mixing routines. The 2.5 V minimum VDD allows direct operation from a single-cell Li-ion or two-AA battery pack, enabling battery-powered portable lighting products. The OTP memory locks the firmware to prevent field tampering with brightness curves or color-mixing profiles.
Được đề xuất
Battery Charger and Power Management
The PIC16C58B-04/SO serves as the supervisory controller in single-cell NiMH or Li-ion charger designs where it monitors battery voltage through an ADC-less comparator scheme using a digital I/O pin and reference. Its low standby current (microamp range) and 2.5 V to 5.5 V VDD make it well-suited to always-on battery management circuits. The 4 MHz speed is sufficient to implement CC/CV charge profiles, temperature monitoring, and safety timer logic in firmware. The OTP memory ensures the charge profile cannot be corrupted in the field, a regulatory requirement for many consumer battery products.
Được đề xuất
Automotive Body Electronics
The PIC16C58B-04/SO is used in low-end automotive body modules (interior lighting controllers, seat-position sensors, simple HVAC actuators) where its automotive-qualified -04I extended temperature grade handles -40C to +85C under-hood and cabin environments. The 4 MHz CPU is fast enough for LIN-bus software emulation or simple switch-matrix scanning at automotive switch-bounce rates. The 12 I/O pins can directly drive automotive relays, LEDs, and small solenoids through Darlington buffers. The OTP memory locks the calibration data and OEM firmware, preventing unauthorized field modifications of safety-relevant control logic.
Được đề xuất
Industrial Timer and Counter
The PIC16C58B-04/SO is well-suited to industrial timer, counter, and pulse-generator applications (conveyor-belt controllers, batch counters, machine run-time accumulators) where its 8-bit TMR0 with 8-bit prescaler provides accurate timebase generation and the 12 I/O pins can interface to 24 V industrial signals through optocouplers. The 4 MHz instruction rate is sufficient to debounce noisy mechanical inputs and count pulses at rates up to several kHz. The integrated watchdog timer and brown-out reset are essential for unattended industrial installations where firmware hangs or power glitches must trigger automatic recovery.
Được đề xuất
Low-Cost Replacement of Discrete Logic
The PIC16C58B-04/SO can replace dozens of 74-series logic gates in glue-logic consolidation, providing configurable I/O, timing, and state-machine behavior in a single SOIC-18 package. The 4 MHz CPU and 33-instruction RISC set are sufficient to implement custom encoders, decoders, sequence detectors, and protocol converters in firmware, replacing entire boards of discrete CMOS logic. The 2.5 V to 5.5 V VDD range and CMOS inputs are directly compatible with 74HC/74HCT logic signal levels. The OTP memory locks the logic function at programming time, eliminating the need for in-system firmware updates in the final product.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C58B-04/SO — 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/SO | PIC16C58B-04E/SO | PIC16F57-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (300 mil) | 18-SOIC (300 mil) - same | 18-SOIC (300 mil) - same | 18-SOIC (300 mil) - same |
| Program Memory Type | OTP EPROM (3 KB) | OTP EPROM (3 KB) - same | OTP EPROM (3 KB) - same | Flash (3 KB) - reprogrammable |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Operating Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) |
| RAM | 73 bytes | 73 bytes | 73 bytes | 72 bytes |
| I/O Pins | 12 | 12 | 12 | 12 |
| Lifecycle Status | NRND | NRND | NRND | Active |
Bảo phân biệt quan trọng
- Active vs NRND lifecycle status (vsPIC16F57-I/SO)
- Commercial vs industrial temperature range (vsPIC16C58B-04I/SO)
- Flash upgrade path for in-field firmware updates (vsPIC16F57-I/SO)
Ghi chú thiết kế
The PIC16C58B uses OTP (one-time-programmable) memory and cannot be erased or reprogrammed in-circuit. Validate firmware on a JW (windowed) PIC16C58B or on the flash-based PIC16F57 development board before committing to OTP production parts. A single code bug locked into OTP memory results in scrapped inventory. Use a socketed programmer such as MPLAB PM3 or PICSTART Plus to allow easy re-programming during prototyping.
The PIC16C58B has a wide 2.5 V to 5.5 V operating voltage but does not include an internal voltage regulator; the VDD pin must be bypassed with a 100 nF ceramic capacitor placed within 5 mm of the package, plus a 10 uF bulk capacitor if VDD is supplied from a long trace or remote LDO. Brown-out reset and power-on reset are enabled by configuration bits and should be left enabled for reliable startup in noisy industrial environments. Watchdog timer (WDT) should also be enabled with a typical 18 ms timeout to recover from firmware hangs.
The /MCLR pin (pin 4) must be pulled up to VDD through a 10 kohm resistor for normal operation, and a 100 nF capacitor from /MCLR to VSS provides hardware reset debouncing. The OSC1/OSC2 pins (16/15) can drive a 4 MHz crystal with two 22 pF load capacitors, or accept an external CMOS clock signal on OSC1 with OSC2 left open. Place the crystal within 5 mm of the MCU and keep OSC traces short to minimize EMI. Unused I/O pins should be configured as outputs (low) to minimize current draw, never left floating.
The 18-SOIC package has 1.27 mm (50 mil) pin pitch, requiring 8-mil traces and 8-mil spaces for escape routing. The exposed pad (thermal pad) on the bottom is not present on the SOIC-18 PIC16C58B but is present on DFN/QFN variants - confirm the package code from the part marking before laying out the footprint. For high-noise industrial environments, route the OSC1/OSC2 traces over a continuous ground plane and place a guard ring of ground vias around the crystal to prevent capacitive coupling from switching signals.
Thông tin tuân thủ
Lead-free per Microchip product page. RoHS compliance for the SO package variant not explicitly stated in the provided verified web data; refer to the Microchip product page for confirmation. AEC-Q100 qualification status not specified - the -04I industrial variant is suitable for non-safety automotive body electronics but is not formally AEC-Q100 qualified.
