PIC16C55T-10I/SS - 8-Bit 10MHz PIC MCU 768B OTP 28-SSOP | Microchip
MPN: PIC16C55T-10I/SS ✗ Cuối đờiPIC16C55T-10I/SS Tóm tắt
An 8-bit PIC microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, non-volatile program memory, volatile data RAM, digital I/O peripherals, and at least one timer onto one silicon die. PIC16C5X devices sit within Microchip's baseline 8-bit PIC architecture hierarchy, positioned above PIC10/PIC12 and below PIC16 enhanced mid-range parts; the family is also a subset of the broader microcontroller category, which itself nests into embedded processors, microcontrollers, and ultimately semiconductors. The C/5X line was Microchip's original EPROM/OTP-based baseline architecture with 12-bit-wide opcodes that yield roughly 2:1 code density over many 8-bit peers.
Key features of the PIC16C55T-10I/SS include 33 single-word/12-bit instructions, a 4 MHz internal oscillator option (external RC/oscillator modes also supported), an industrial-grade -40 C to +85 C operating range (the "I" suffix), CMOS low-power design, and In-Circuit Serial Programming (ICSP) capability for OTP programming. The 28-SSOP outline keeps the footprint compact while still exposing 20 usable I/O pins for keypad scanning, LED multiplexing, sensor interfaces, and simple control loops.
Architecturally the part uses a Harvard-style separate program/data bus with a 12-bit instruction word and 8-bit data path, allowing most instructions to execute in a single instruction cycle (200 ns at 10 MHz oscillator). The 25-byte RAM supports a small register file plus stack; the on-chip WDT and POR reduce external supervisory component count.
Typical applications include consumer appliance controls, low-end remote keyless entry transmitters, simple sensor readout boards, LED driver controllers, and other cost-sensitive embedded replacements of discrete logic. The OTP memory suits factory-programmed high-volume products where flash reprogrammability is not required.
Design trade-off: choose the PIC16C55T-10I/SS when you need a mature baseline-PIC core at the lowest unit cost in a 28-SSOP; if field reprogrammability or more RAM is required, step up to a flash-based PIC16F or PIC16 enhanced mid-range part.
This page synthesizes distributor availability, same-package drop-in alternatives (including PIC16C55-10I/SS and PIC16C554T-04/SS), and practical OTP-MCU design notes not collected in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16C55T-10I/SS — 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 PIC16C55T-10I/SS (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Package, Core Architecture, Program Memory Type, Timers.
PIC16C55-10I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C55-HSI/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C55-LPI/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C55A-20I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C554T-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C558T-20I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C55T-10I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16C5X (Baseline 8-bit RISC) |
| Bề rộng đường dữ liệu | 8 bit |
| Tần số xung maksimum | 10 MHz |
| Instruction Set Width | 12 bit |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 768 B (512 x 12) |
| Data RAM | 25 B |
| Number of I/O Pins | 20 |
| Timers | 1 x 8-bit |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V (5 V nominal) |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp / Vỏ | 28-SSOP (5.30 mm) |
| Kiểu lắp đặt | Surface Mount |
| Watchdog Timer (WDT) | Yes |
| Power-On Reset (POR) | Yes |
| ICSP / In-Circuit Serial Programming | Yes |
Cấu hình chân PIC16C55T-10I/SS
| Chân 1 | RA2 — Port A bit 2 (digital I/O) |
| Chân 2 | RA3 — Port A bit 3 (digital I/O) |
| Chân 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 4 | MCLR/Vpp — Master Clear (active low reset) / Programming voltage input |
| Chân 5 | Vss — Ground reference |
| Chân 6 | RB0/INT — Port B bit 0 / External interrupt |
| Chân 7 | RB1 — Port B bit 1 (digital I/O) |
| Chân 8 | RB2 — Port B bit 2 (digital I/O) |
| Chân 9 | RB3 — Port B bit 3 (digital I/O) |
| Chân 10 | RB4 — Port B bit 4 (digital I/O) |
| Chân 11 | RB5 — Port B bit 5 (digital I/O) |
| Chân 12 | RB6 — Port B bit 6 / ICSP clock |
| Chân 13 | RB7 — Port B bit 7 / ICSP data |
| Chân 14 | Vdd — Positive supply (4.5 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 | RC0 — Port C bit 0 (digital I/O) |
| Chân 18 | RC1 — Port C bit 1 (digital I/O) |
| Chân 19 | RC2 — Port C bit 2 (digital I/O) |
| Chân 20 | RC3 — Port C bit 3 (digital I/O) |
| Chân 21 | RC4 — Port C bit 4 (digital I/O) |
| Chân 22 | RC5 — Port C bit 5 (digital I/O) |
| Chân 23 | RC6 — Port C bit 6 (digital I/O) |
| Chân 24 | RC7 — Port C bit 7 (digital I/O) |
| Chân 25 | RA0 — Port A bit 0 (digital I/O) |
| Chân 26 | RA1 — Port A bit 1 (digital I/O) |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16C55T-10I/SS phù hợp cho 6 Áp dụngs: Consumer Appliance Control Board, Remote Keyless Entry (RKE) Transmitter, LED Display Driver / Multiplexer Controller, Industrial Sensor Readout Module, Battery Charger Controller (Simple Topology), Toy and Hobby Electronics.
Consumer Appliance Control Board
The PIC16C55T-10I/SS fits appliance control boards because its 768-byte OTP and 20 I/O pins are sufficient for state-machine firmware driving relays, triacs, and seven-segment displays. The 10 MHz clock (200 ns instruction cycle) executes PID loops for temperature regulation within tens of microseconds, while the on-chip WDT and POR eliminate an external supervisor. Tape-and-Reel packaging suits high-volume SMT lines.
Được đề xuất
Remote Keyless Entry (RKE) Transmitter
For handheld RKE fobs the PIC16C55T-10I/SS is a strong fit because its 25-byte RAM and 768-byte OTP easily encode rolling-code transmitters, while the 8-bit timer handles the 315/433 MHz Manchester-coded ASK/FSK bit-banging output. Its industrial -40 C to +85 C rating covers automotive cabin thermal stress, and the low-cost OTP enables sub-dollar BOM. The 28-SSOP keeps the PCB footprint smaller than the 28-DIP alternative.
Được đề xuất
LED Display Driver / Multiplexer Controller
The PIC16C55T-10I/SS drives multiplexed 7-segment or dot-matrix LED displays using its 20 I/O pins split between segment and digit lines. At 10 MHz the firmware can refresh up to 8 digits at >1 kHz rate, well above the 100 Hz flicker threshold, while ICSP allows late-stage brightness-table calibration. The 5 V rail directly powers common-cathode LED arrays without level shifters.
Được đề xuất
Industrial Sensor Readout Module
The PIC16C55T-10I/SS suits industrial sensor readouts where its PIC16C5X core performs linearisation, calibration, and 4-20 mA loop drive using the 8-bit timer for PWM. The 25-byte RAM holds short moving-average buffers, the WDT recovers from EMI-induced lockups, and the industrial -40 C to +85 C grade handles factory-floor temperatures. OTP secures the calibration constants from field tampering.
Được đề xuất
Battery Charger Controller (Simple Topology)
For NiCd/NiMH chargers the PIC16C55T-10I/SS implements -delta-V or dT/dt charge termination in firmware using its 8-bit timer to gate the charge FET. The 768-byte OTP stores the CC/CV curve tables, and 20 I/Os accommodate cell voltage monitoring plus LED status indication. Industrial temperature grade supports chargers kept in unheated garages or workshops.
Được đề xuất
Toy and Hobby Electronics
The PIC16C55T-10I/SS drives sound effects, motor speed, and IR remote decoding in cost-sensitive toys. Its 8-bit baseline core delivers enough MIPS for PCM audio playback from a 768-byte OTP look-up table, while 20 I/Os are ample for servo/motor multiplexing. OTP prevents end-users from cloning the firmware, protecting the toy's IP. The 28-SSOP is small enough for wearable toys.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C55T-10I/SS — 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 | PIC16C55-10I/SS | PIC16C55-HSI/SS | PIC16C55-LPI/SS | PIC16C55A-20I/SS | PIC16C554T-04I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Max Clock Frequency | 10 MHz | 10 MHz | 20 MHz | 4 MHz | 20 MHz | 4 MHz |
| Program Memory | 768 B (512 x 12) OTP | 768 B OTP | 768 B OTP | 768 B OTP | 768 B OTP | 768 B OTP |
| Data RAM | 25 B | 25 B | 25 B | 25 B | 25 B | 80 B |
| I/O Pins | 20 | 20 | 20 | 20 | 20 | 13 |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Packaging | Tape & Reel | Tube | Tube | Tube | Tube | Tape & Reel |
Bảo phân biệt quan trọng
- Tape-and-Reel packaging for high-volume SMT lines (vsPIC16C55-10I/SS)
- Highest speed variant in same SSOP package (vsPIC16C554T-04I/SS)
- Lowest-cost OTP baseline PIC with industrial temp grade (vsPIC16C55A-20I/SS)
Ghi chú thiết kế
The PIC16C55T-10I/SS operates from a single 5 V rail (4.5-5.5 V per the Microchip PIC16C5X datasheet). Place a 100 nF decoupling ceramic capacitor as close as physically possible to the Vdd pin (pin 14) and a 10 uF bulk capacitor near the Vdd-Vss pair. Estimated: at 10 MHz with all 20 I/O toggling, peak supply current stays below 10 mA, so a small LDO (e.g., MCP1700) is sufficient. Add bulk capacitance if the I/O pins drive LED matrices.
Keep the OSC1/OSC2 traces (pins 16/15) shorter than 20 mm and route them over a continuous ground pour to minimise radiated EMI. The MCLR/Vpp pin (pin 4) requires a 10 kohm pull-up to Vdd and a 100 nF cap to ground if ICSP is used; without ICSP a simple 10 kohm pull-up is enough. Estimated: crystal load capacitance is typically 15-22 pF - select the crystal and two load caps together per the PIC16C5X oscillator guidance.
The PIC16C55T-10I/SS is OTP (One-Time Programmable) - there is no field reprogramming path once the part is programmed. According to the Microchip PIC16C5X datasheet, you must verify firmware on a windowed (JW) sample first, then commit to the OTP version for production. Also note the NRND lifecycle status; new designs should consider flash-based PIC16F or PIC16 enhanced mid-range alternatives to avoid obsolescence risk.
The PIC16C55T-10I/SS 8-bit baseline core has no internal PLL or peripheral clock scaling - the oscillator frequency directly sets instruction rate. At 10 MHz the instruction cycle is 200 ns; interrupts must complete their prologue/epilogue within this budget. Estimated: a 10-instruction ISR takes 2 us, leaving 18 us in a 100 us control loop. For RF-noise-sensitive applications (RKE, IR receivers), enable the on-chip WDT and use the SLEEP instruction between events to keep digital emissions low.
Thông tin tuân thủ
RoHS/REACH/lead-free/halogen-free status were not present in the verified web data and are flagged as unknown; Microchip product environmental compliance docs should be consulted before Pb-free reflow assembly. Part is not AEC-Q100 qualified (baseline industrial grade).
