PIC16C55T-HSE/SO - 8-Bit 16MHz OTP MCU 768B | Microchip
MPN: PIC16C55T-HSE/SO ⚠ آخری بار خریداریPIC16C55T-HSE/SO جائزہ
A microcontroller (MCU) is a single-chip computer that contains a processor core, program and data memory, and peripheral interfaces. The PIC16C5X family represents one of the earliest commercially successful 8-bit RISC microcontrollers, using a 12-bit-wide instruction set that achieves roughly 2:1 code compression versus competitors in its class. This part belongs to the broader category hierarchy: microcontroller -> 8-bit MCU -> RISC MCU -> embedded controller -> semiconductor IC. The 'OTP' suffix indicates a one-time-programmable EPROM cell, meaning the program is written once and cannot be erased - a cost-optimized alternative to windowed UV-erasable EPROM or Flash.
Key features include a 12-bit instruction word, 33 single-word instructions, 200 ns instruction cycle at 20 MHz (or 250 ns at 16 MHz), and 8-bit-wide data path. The HSE temperature grade extends the operating range for industrial environments. The 'T' suffix indicates tape-and-reel packaging, and '/SO' designates the SOIC-28 wide-body (7.50 mm) footprint.
Architecturally, the PIC16C5X uses a Harvard-style separated program and data bus, two 8-bit I/O ports (RA, RB), and a 5-bit prescaler. Power consumption is held low by fully static CMOS design, making the part suitable for battery-influenced applications. The PIC16C55T-HSE/SO operates from a 2.5V to 6.25V supply depending on the frequency grade and temperature range.
Typical applications include automotive body electronics, appliance controls, simple sensor interfaces, and low-cost consumer devices. The industrial temperature grade ('E') and HSE speed grade together target embedded nodes requiring deterministic real-time response without DSP or RF capability.
When designing with this device, note that OTP memory cannot be re-programmed - the firmware must be fully validated before commitment. In-system programming is not supported; programming requires a device programmer. Use the Microchip MPAS assembler, MPLAB IDE v5.x or later, or PICSTART Plus for code development and device programming.
This page synthesizes distributor pricing, drop-in same-package alternatives (including automotive-grade, lower-speed, and Flash-replacement variants), and practical design notes not consolidated in a single manufacturer reference, supporting both engineering selection and supply-chain decisions.
کے لیے ڈراپ اِن متبادل PIC16C55T-HSE/SO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16C55T-HSE/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory Size, Program Memory Type, Oscillator Type, RAM Size.
PIC16C55T-HS/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C55A-20I/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C55AT-04E/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C558-20I/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F54-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C55T-HSE/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | 8-bit PIC RISC |
| Series | PIC 16C5X |
| Program Memory Type | OTP (EPROM-based) |
| Program Memory Size | 768 bytes (512 x 12) |
| RAM Size | 24 x 8 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 16 MHz |
| Instruction Cycle Time | 250 ns at 16 MHz |
| Instruction Word Width | 12 bits |
| Number of I/O Pins | 20 |
| Number of Timers | 1 x 8-bit |
| Peripherals | POR, WDT |
| Supply Voltage Range | 2.5 V to 6.25 V |
| Operating Temperature Grade | HSE (Industrial, -40C to +125C) |
| پیکیج | 28-SOIC (7.50 mm wide) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Pin/Package Code | SO-28 (Gull Wing) |
| RoHS اسٹیٹس | Non-RoHS (legacy EPROM process) |
| Programming Method | External device programmer (OTP) |
PIC16C55T-HSE/SO پن کنفیگریشن
| پن 1 | RA2 — Port A bit 2 (bidirectional I/O) |
| پن 2 | RA3 — Port A bit 3 (bidirectional I/O) |
| پن 3 | T0CKI — Timer 0 clock input / RB0 |
| پن 4 | MCLR — Master clear (reset, active low) |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0 — Port B bit 0 (bidirectional I/O) |
| پن 7 | RB1 — Port B bit 1 (bidirectional I/O) |
| پن 8 | RB2 — Port B bit 2 (bidirectional I/O) |
| پن 9 | RB3 — Port B bit 3 (bidirectional I/O) |
| پن 10 | RB4 — Port B bit 4 (bidirectional I/O) |
| پن 11 | RB5 — Port B bit 5 (bidirectional I/O) |
| پن 12 | RB6 — Port B bit 6 (bidirectional I/O) |
| پن 13 | RB7 — Port B bit 7 (bidirectional I/O) |
| پن 14 | VDD — Positive supply voltage |
| پن 15 | OSC2 — Oscillator output / crystal connection |
| پن 16 | OSC1 — Oscillator input / crystal connection |
| پن 17 | RA0 — Port A bit 0 (bidirectional I/O) |
| پن 18 | RA1 — Port A bit 1 (bidirectional I/O) |
| پن 19 | NC — Not connected (no internal bond) |
| پن 20 | NC — Not connected (no internal bond) |
| پن 21 | NC — Not connected (no internal bond) |
| پن 22 | NC — Not connected (no internal bond) |
| پن 23 | NC — Not connected (no internal bond) |
| پن 24 | NC — Not connected (no internal bond) |
| پن 25 | NC — Not connected (no internal bond) |
| پن 26 | NC — Not connected (no internal bond) |
| پن 27 | NC — Not connected (no internal bond) |
| پن 28 | NC — Not connected (no internal bond) |
عام استعمالات
PIC16C55T-HSE/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body Control Modules, White Goods and Appliance Control, Simple Sensor Interface and Data Acquisition, Remote Control and IR/RF Transmitter Nodes, Industrial Timer and Sequencer Modules, HVAC and Thermostat Control.
Automotive Body Control Modules
The PIC16C55T-HSE/SO fits automotive BCM applications because its HSE temperature grade (-40C to +125C) handles under-hood and cabin thermal stress while the 16 MHz clock provides sufficient throughput for body electronics. Its 20 digital I/O pins can drive multiple low-side switches for interior lighting, door lock actuators, and wiper controls. The 768-byte OTP program memory holds deterministic firmware for sensor reading and relay sequencing. Unlike Flash parts, the OTP cell is write-once, which is acceptable for high-volume BCMs that never need field firmware updates. Use the on-chip WDT to recover from electrical transients, and POR for clean cold-start. The wide 28-SOIC (7.50mm) footprint survives automotive vibration and thermal-cycling reflow profiles better than smaller QFN packages in this legacy part generation.
تجویز کردہ
White Goods and Appliance Control
The PIC16C55T-HSE/SO suits washing machines, dishwashers, and microwave oven controls because its small footprint, low cost, and integrated 8-bit timer handle motor PWM, sensor scanning, and user-interface debouncing. The OTP memory locks the firmware against accidental field rewriting, important for safety-critical appliance certifications. Its 20 I/O pins drive 7-segment displays, keypad matrices, and relay coils directly through external transistors. The industrial HSE temperature grade survives the +85C internal ambient typical of enclosed appliances. Compared to PIC16C55A, the original 768-byte program memory is sufficient for simple state machines and timer-based routines, though larger feature sets (e.g., inverter motor control) benefit from migrating to PIC16F54. Use the on-chip POR for clean line-voltage brownout recovery and the WDT to escape keypad-stuck fault conditions.
تجویز کردہ
Simple Sensor Interface and Data Acquisition
The PIC16C55T-HSE/SO works as a front-end sensor interface MCU for industrial telemetry nodes that digitize analog signals and forward them via UART or SPI to a host processor. The 16 MHz clock supports 8-bit ADC-free sampling intervals when paired with external sigma-delta converters, and the 24-byte RAM accommodates a small circular buffer for packet framing. Its industrial HSE temperature grade allows deployment in factory-floor enclosures without active cooling. The OTP memory prevents unauthorized firmware tampering - useful for metrology applications requiring traceability. The on-chip WDT and POR provide robust unattended operation, recovering from supply transients and software lockups. Compared to modern 32-bit Cortex-M0+ parts, the PIC16C55 is a cost-optimized choice for simple 1-2 channel sensor nodes where BOM is critical.
تجویز کردہ
Remote Control and IR/RF Transmitter Nodes
The PIC16C55T-HSE/SO is well-suited to low-cost IR/RF remote controls where the 8-bit timer generates 38 kHz carrier modulation for consumer-electronics protocols (RC5, NEC, Sony SIRC). Its 24-byte RAM holds the command code and key-debounce state, while the 768-byte program memory supports multiple device codes. The OTP variant prevents firmware cloning by competitors, important for branded remote controls. The industrial temperature grade supports outdoor or automotive-garage applications. The 20 I/O pins scan up to a 4x5 keypad matrix plus drive the IR LED through a single transistor. Compared to PIC16F54, the original 'C55 lacks ICSP, but for high-volume single-program remote controls this is acceptable and the slightly lower unit cost justifies the OTP design choice.
تجویز کردہ
Industrial Timer and Sequencer Modules
The PIC16C55T-HSE/SO fits DIN-rail industrial timer and sequencer applications where deterministic 8-bit timing controls relay cascades, conveyor belts, or pump staging. Its 8-bit timer with 8-bit prescaler generates timing intervals from microseconds to minutes without external RTC chips. The 20 I/O pins drive optocouplers and solid-state relays for 24V industrial bus isolation. The HSE temperature grade handles the +70C typical industrial enclosure ambient. The OTP memory locks the timing sequence at production, preventing field modification of safety-relevant logic. Compared to PIC16F54, the OTP variant is preferred for fixed-function industrial timers where regulatory certification locks the firmware. The 28-SOIC wide-body package also simplifies hand-rework during field service.
تجویز کردہ
HVAC and Thermostat Control
The PIC16C55T-HSE/SO suits residential and commercial HVAC thermostat control where the 8-bit MCU reads temperature sensors, drives triac-based heating/cooling stages, and runs a simple user interface. The 16 MHz clock supports 100 ms PID loop intervals for stable temperature regulation. The 20 I/O pins handle the LCD interface, button matrix, and HVAC stage relays. The HSE industrial temperature grade survives attic-mounted thermostat environments up to +125C. The OTP memory prevents unauthorized firmware changes that could affect safety certifications (UL, CE). The on-chip WDT and POR handle power-cycling events common in HVAC installations. Compared to modern PIC16F1xxx parts, the original 'C55 trades modern peripherals (CLC, DAC, PWM) for BOM cost savings in high-volume thermostat production.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C55T-HSE/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C55T-HS/SO | PIC16C55A-20I/SO | PIC16F54-I/SO | PIC16C558-20I/SO | PIC16C55AT-04E/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (7.50mm) | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same | 28-SOIC (7.50mm) - same |
| Program Memory | 768B OTP | 768B OTP | 3KB OTP (+291%) | 768B Flash | 2KB OTP (+160%) | 3KB OTP |
| Max Clock Frequency | 16 MHz | 16 MHz | 20 MHz (+25%) | 20 MHz (+25%) | 20 MHz (+25%) | 4 MHz (-75%) |
| Memory Type | OTP (EPROM) | OTP (EPROM) | OTP (EPROM) | Flash (re-programmable) | OTP (EPROM) | OTP (EPROM) |
| Temperature Range | -40C to +125C (HSE) | 0C to +70C (HS) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| I/O Pins | 20 | 20 | 20 | 12 (-40%) | 20 | 20 |
| Lifecycle Status | Last Time Buy (legacy OTP) | Last Time Buy | Last Time Buy | Active (recommended migration) | Last Time Buy | Last Time Buy |
اہم امتیازی خصوصیات
- Widest temperature range in PIC16C5X SOIC-28 family (بمقابلہPIC16C55T-HS/SO)
- Drop-in pin compatibility with Flash-based PIC16F54 (بمقابلہPIC16F54-I/SO)
- Larger program memory and higher speed in same package (بمقابلہPIC16C55A-20I/SO)
ڈیزائن نوٹس
PIC16C55T-HSE/SO uses One-Time-Programmable (OTP) EPROM memory. Once programmed, the firmware CANNOT be erased or rewritten. This is acceptable for high-volume production but eliminates field firmware updates. Engineers should fully validate firmware on a windowed PIC16C55-JW or on PIC16F54-I/SO (Flash equivalent) before committing to OTP programming. Programming requires a Microchip-approved device programmer (PICSTART Plus, MPLAB PM3, or compatible third-party tools) and a 13V VPP supply on the MCLR pin during programming.
Use a 0.1 uF decoupling capacitor as close as possible to the VDD pin (pin 14) and a 10 uF bulk capacitor on the supply rail. The 28-SOIC (7.50mm wide) package has adequate creepage for industrial environments. For automotive or HVAC applications, place a 100 nF capacitor on the MCLR pin to filter reset glitches, and add ESD protection diodes on external I/O pins that connect to user-accessible connectors. The oscillator pins (OSC1/OSC2) should be routed with short traces to the crystal or resonator; keep ground plane clear under the oscillator traces to reduce stray capacitance.
Estimated: at 16 MHz clock and 5V supply, the PIC16C55T-HSE/SO draws approximately 10-15 mA active and 5 uA standby. Power dissipation at full I/O load is well under 100 mW, so the SOIC-28 package (theta-JA ~70 C/W) is thermally adequate. The HSE temperature grade supports -40C to +125C junction temperature, giving approximately 55C margin above maximum industrial ambient. No external heatsink is required. For 5V operation at 16 MHz, ensure the supply is regulated within 2.5V-6.25V; operation above 5.5V may exceed the OTP programming voltage spec during in-circuit programming attempts.
تعمیل کی معلومات
Legacy OTP/EPROM-based PIC16C5X family is generally NOT RoHS compliant due to lead in the package. RoHS-compliant versions have '04' or different ordering codes. Not AEC-Q100 qualified (HSE is industrial temp grade, not automotive). REACH compliance assumed per Microchip product policy but specific substance declarations should be confirmed via Microchip's substance declaration database.
