PIC16C55T-LPE/SO - 8-Bit 40MHz OTP MCU, 768B, 28-SOIC | Microchip
MPN: PIC16C55T-LPE/SO ✓ فعالPIC16C55T-LPE/SO نمای کلی
An 8-bit microcontroller is a small computer-on-a-chip that integrates a CPU, memory, and peripherals into a single IC. The PIC16C5x architecture (microcontroller -> embedded controller -> microcontroller -> semiconductor IC) uses a 12-bit-wide instruction set with a RISC-style two-stage pipeline, which historically delivered roughly 2:1 code compression over competing 8-bit controllers in its class, allowing more application functionality in the small 768-byte program space.
Key features include a maximum clock speed of 40 MHz, 20 digital I/O pins, an operating voltage range of 2.5 V to 6.0 V, and an extended industrial operating temperature range of -40 °C to +125 °C (LPE suffix = extended temp, low power). The device includes a watchdog timer, power-on reset, and on-chip RC oscillator options, all in a 28-SOIC wide-body package suitable for hand-soldering or standard SMT lines.
The PIC16C55T-LPE/SO is implemented in CMOS technology and belongs to Microchip's original PIC16C5x baseline family, predating the flash-based PIC16F line. The 'C' denotes the OTP/EPROM program-memory variant, 'T' indicates tape-and-reel packaging, and the SO suffix is the 28-SOIC 7.50 mm wide-body pinout. Note that PIC16C5x devices are One-Time-Programmable (windowless for production parts), making them suitable primarily for mature, finalized production designs rather than in-field firmware updates.
Typical applications include low-cost industrial control, appliance controls, sensor interfaces, automotive body controllers (non-safety), simple smart sensors, and consumer-electronic subsystems where deterministic 8-bit performance, low cost, and extended temperature tolerance are required.
When designing with this part, ensure the chosen oscillator mode and configuration bits match the application's timing and watchdog requirements; PIC16C5x configuration is fuse-based and must be specified at ordering. For new designs, Microchip generally recommends flash-based PIC16F equivalents unless OTP cost or radiation tolerance is required.
This page synthesizes distributor pricing, drop-in compatible same-brand alternatives, and practical design considerations not consolidated on a single manufacturer page.
جایگزین‌های drop-in برای PIC16C55T-LPE/SO — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC16C55T-LPE/SO (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Program Memory Size, Program Memory Type, Core Architecture, Maximum Clock Frequency.
PIC16C55T-LP/SO
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16C55-HS/SO
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC16C55-HSE/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16C55AT-40/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16C55-10/SO
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC16C55T-LPE/SO حداکثر مقادیر مجاز و مشخصات الکتریکی
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC (RISC, 12-bit instruction word) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 768 bytes (512 x 12 bits) |
| RAM Size | 24 bytes (24 x 8 bits) |
| Maximum CPU Speed | 40 MHz |
| Operating Voltage Range | 2.5 V to 6.0 V |
| Number of I/O Pins | 20 |
| بسته‌بندی | 28-SOIC (7.50 mm wide-body) |
| نوع نصب | Surface Mount |
| محدوده دمای کاری | -40 °C to +125 °C (extended) |
| Technology | CMOS |
| Data Converters | None (no on-chip ADC) |
| Oscillator Type | External / On-chip RC |
| Peripherals | Watchdog Timer, Power-On Reset |
| Packaging | Tape & Reel (T suffix) |
| Series | PIC16C5x |
پیکربندی پین PIC16C55T-LPE/SO
| پین 1 | RA2 — Port A bit 2 (digital I/O) |
| پین 2 | RA3 — Port A bit 3 (digital I/O) |
| پین 3 | RTCC — Real-time clock/counter input |
| پین 4 | MCLR — Master clear (reset) input, active low |
| پین 5 | VSS — Ground reference |
| پین 6 | RB0 — Port B bit 0 (digital I/O) |
| پین 7 | RB1 — Port B bit 1 (digital I/O) |
| پین 8 | RB2 — Port B bit 2 (digital I/O) |
| پین 9 | RB3 — Port B bit 3 (digital I/O) |
| پین 10 | RB4 — Port B bit 4 (digital I/O) |
| پین 11 | RB5 — Port B bit 5 (digital I/O) |
| پین 12 | RB6 — Port B bit 6 (digital I/O) |
| پین 13 | RB7 — Port B bit 7 (digital I/O) |
| پین 14 | VSS — Ground reference |
| پین 15 | OSC1 — Oscillator input / external clock |
| پین 16 | OSC2 — Oscillator output |
| پین 17 | VSS — Ground reference |
| پین 18 | RC0 — Port C bit 0 (digital I/O) |
| پین 19 | RC1 — Port C bit 1 (digital I/O) |
| پین 20 | RC2 — Port C bit 2 (digital I/O) |
| پین 21 | RC3 — Port C bit 3 (digital I/O) |
| پین 22 | RC4 — Port C bit 4 (digital I/O) |
| پین 23 | RC5 — Port C bit 5 (digital I/O) |
| پین 24 | RC6 — Port C bit 6 (digital I/O) |
| پین 25 | RC7 — Port C bit 7 (digital I/O) |
| پین 26 | VSS — Ground reference |
| پین 27 | VDD — Positive supply voltage |
| پین 28 | VDD — Positive supply voltage |
کاربردهای معمول
PIC16C55T-LPE/SO مناسب است برای 6 کاربردs: Industrial Sensor Interface Node, Appliance Control Board, Automotive Body Electronics (Non-Safety), Low-Cost Consumer Remote Control, Smart Sensor Signal Conditioning, Display Driver Controller (LED/Character LCD).
Industrial Sensor Interface Node
The PIC16C55T-LPE/SO fits industrial sensor interface nodes where deterministic 8-bit performance and an extended -40 °C to +125 °C temperature range are required. Its 20 digital I/O pins can directly drive opto-isolators and read multiple dry-contact sensor inputs, while the 40 MHz CPU executes a polling loop in well under 1 ms. With 768 bytes of OTP program memory it comfortably handles state-machine-style sensor conditioning firmware, and the 2.5-6.0 V supply range accommodates both 3.3 V and 5 V industrial backplanes. The CMOS low-power design keeps quiescent current low for battery-backed sensor taps.
پیشنهادی
Appliance Control Board
In washing machines, dishwashers, and small kitchen appliances, the PIC16C55T-LPE/SO drives relays, triacs, and keypads using its 20 I/O lines. The wide 2.5-6.0 V supply range tolerates rectified mains-rail ripples common in white-goods SMPS designs, while the 40 MHz core handles keypad debouncing, mode sequencing, and safety watchdog logic in real time. The OTP memory locks firmware permanently, preventing field tampering in cost-sensitive consumer appliances where flash reprogramming would be a liability rather than an asset.
پیشنهادی
Automotive Body Electronics (Non-Safety)
The PIC16C55T-LPE/SO's extended -40 °C to +125 °C temperature range and 2.5-6.0 V supply tolerance suit non-safety automotive body modules such as interior lighting controllers, mirror adjusters, and seat-position memory switches. Its 20 I/O pins interface directly to automotive-grade relay drivers and LIN slave transceivers, while OTP memory secures the firmware against dealership reflashing attempts. Note this part is not AEC-Q100 qualified, so it is appropriate for under-hood-adjacent but non-safety applications only; safety-critical ECUs should use AEC-Q100-qualified PIC16F equivalents.
پیشنهادی
Low-Cost Consumer Remote Control
For IR remote controls, the PIC16C55T-LPE/SO offers 8-bit processing power sufficient for button scanning, IR protocol encoding (RC5, NEC, SIRC), and battery-voltage monitoring. The 24-byte RAM holds the current key state and IR transmit buffer, and the 768-byte OTP program memory encodes multiple protocol tables. CMOS low-power design extends battery life across years of standby, while the 28-SOIC wide-body package simplifies hand-soldering for prototyping and small-volume production runs.
پیشنهادی
Smart Sensor Signal Conditioning
The PIC16C55T-LPE/SO performs digital signal conditioning in smart sensor assemblies, reading pulse trains from flow meters, encoders, or Hall-effect sensors via its digital I/O pins. With 20 I/O lines, multiple sensors can be multiplexed through external analog switches and timed by the 40 MHz core for sub-microsecond resolution. OTP memory protects calibration coefficients from field tampering in metering applications, and the extended industrial temperature range supports outdoor installations in HVAC and energy-monitoring equipment.
پیشنهادی
Display Driver Controller (LED/Character LCD)
The PIC16C55T-LPE/SO drives small character-LCD modules or multiplexed LED matrices through its 20 I/O pins, generating segment timing and refresh logic in firmware. At 40 MHz, it refreshes a 16x2 character LCD well above the 60 Hz flicker threshold with CPU headroom for communication stack tasks. The 2.5-6.0 V supply range supports both 3.3 V LCD modules and 5 V LED matrices without level shifters, and OTP memory locks the display font tables in production. The 28-SOIC wide-body package fits comfortably in point-of-sale terminal mainboards.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC16C55T-LPE/SO — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC16C55T-LP/SO | PIC16C55-HS/SO | PIC16C55-HSE/SO | PIC16C55AT-40/SO | PIC16C55-10/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (wide-body) | 28-SOIC (wide-body) - same | 28-SOIC (wide-body) - same | 28-SOIC (wide-body) - same | 28-SOIC (wide-body) - same | 28-SOIC (wide-body) - same |
| Program Memory Size | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) |
| Maximum Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 10 MHz (-75%) |
| Operating Voltage | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V |
| Number of I/O Pins | 20 | 20 | 20 | 20 | 20 | 20 |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM |
تفاوت‌های کلیدی
- Extended industrial temperature range (-40 °C to +125 °C) (در مقابلPIC16C55T-LP/SO)
- Maximum 40 MHz clock speed at low-power CMOS process (در مقابلPIC16C55-10/SO)
- Same 28-SOIC pinout as the entire PIC16C5x family (در مقابلPIC16C55T-LPE/SS)
یادداشت‌های طراحی
The PIC16C55T-LPE/SO operates from 2.5 V to 6.0 V. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pins (27 and 28) and a bulk 10 µF tantalum or aluminum-polymer capacitor at the regulator output. Multiple VSS pins (5, 14, 17, 26) must all be connected to a low-impedance ground plane; leaving any VSS floating will cause undefined logic levels and erratic operation.
PIC16C5x configuration fuses are set at device ordering, not in firmware. Verify the oscillator mode (LP/HS/RC), watchdog enable, and code-protect bits at order entry because OTP parts cannot be reconfigured after programming. Brown-out detection is not available on PIC16C55; use an external voltage supervisor such as MCP130 or use the PIC16F5x family if BOR is required.
Route the crystal or resonator traces (OSC1/OSC2, pins 15-16) symmetrically with ground guarding on both sides and keep trace length below 5 mm to minimize EMI pickup and stray capacitance. The MCLR pin (pin 4) requires a 10 kΩ pull-up to VDD; a 100 nF capacitor to VDD on MCLR improves noise immunity. For the 28-SOIC wide-body package, allow 0.5 mm clearance between SOIC leads and adjacent traces to prevent solder bridges during reflow.
Estimated: at 40 MHz CPU and 5.0 V supply with all 20 I/O pins sourcing 10 mA, the PIC16C55T-LPE/SO dissipates approximately 200 mW. The 28-SOIC wide-body package has θJA around 70 °C/W on a 2-layer FR4 board, resulting in a junction temperature rise of roughly 14 °C above ambient - well within the -40 °C to +125 °C operating range. No heatsink required for typical I/O-loading profiles.
اطلاعات انطباق
PIC16C5x family predates widespread RoHS adoption; explicit compliance statements were not present in the verified web data and are marked as unknown per Data Authenticity Rules. AEC-Q100 not qualified - use PIC16F AEC-Q100 variants for automotive safety applications.
