PIC16LC57CT-04/SS - 8-Bit 4MHz OTP MCU 3KB | Microchip
MPN: PIC16LC57CT-04/SS ⚠ آخری بار خریداریPIC16LC57CT-04/SS جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O onto one silicon die, allowing it to read sensors, drive outputs, and execute user firmware without external logic. Within the broader taxonomy, the PIC16C5X family sits in the 8-bit RISC MCU segment, alongside other legacy PIC microcontrollers that prioritized deterministic instruction execution and code density (12-bit wide instructions yield roughly 2:1 code compression over 8-bit-wide instruction MCUs of the same era). The 'LC' prefix indicates the low-power CMOS process variant designed for battery-aware designs, and the 'T' suffix indicates tape-and-reel packaging.
Key features of the PIC16LC57CT-04/SS include 4 MHz maximum operating frequency (the '04' speed grade), 3 KB OTP program memory organized as 2K x 12, a Harvard RISC architecture with only 33 single-word/ single-cycle instructions, 20 general-purpose digital I/O pins multiplexed with peripheral functions, an internal Power-On Reset, a Watchdog Timer for runaway code recovery, and a commercial temperature grade. The OTP memory allows one-time field programming using standard EPROM programmers, which is useful for low-volume production or design validation before ROM mask versions are ordered.
Architecturally, the PIC16C5X uses a 12-bit instruction word with a two-stage pipeline, where every instruction (except branches) executes in one oscillator cycle, giving 4 MIPS at 4 MHz clock. The 8-bit ALU operates on a 7-level hardware stack for subroutine nesting, and 25 special-function registers control I/O and peripheral configuration. Compared with 8051-class MCUs of the same era, the PIC16C5X delivers significantly higher code density and a much smaller die footprint, but lacks on-chip Flash and modern peripherals such as UART, ADC, or PWM hardware.
Typical applications for this device include legacy industrial control logic, appliance controllers, sensor signal conditioning front-ends, simple state machines, and educational or hobby projects where a 4 MHz 8-bit controller is sufficient. It is also used as a cost-down mask-ROM alternate to higher-end PIC microcontrollers in volume production.
When designing with the PIC16LC57CT-04/SS, note that OTP memory cannot be re-programmed in-circuit; develop code on a windowed (UV-erasable) or flash-based PIC variant and validate firmware completely before ordering OTP parts. The device is now considered legacy; verify long-term availability before committing to new designs.
This page synthesizes verified distributor pricing, parametric data, same-brand drop-in alternatives within the PIC16C5X family, and practical design notes not consolidated in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل PIC16LC57CT-04/SS — 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 PIC16LC57CT-04/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory Type, Supply Voltage Range, Program Memory Size, Core.
PIC16LC57C-04I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16LC57CT-04I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C57C-04/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C57CT-04/SS
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC56A-04/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16LC57CT-04/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Family | PIC16C5X |
| Core | 8-bit PIC RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12) |
| EEPROM Size | 0 bytes (none on-chip) |
| Maximum CPU Frequency | 4 MHz |
| Instruction Word Width | 12 bits |
| Number of Instructions | 33 (single-word, single-cycle except branches) |
| سپلائی وولٹیج | 5 V |
| آپریٹنگ درجہ حرارت رینج | 0C to +70C (commercial) |
| I/O Pins | 20 |
| پیکیج | 28-pin SSOP |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Peripherals | POR, WDT |
| Packaging Form | Tape & Reel (T) |
PIC16LC57CT-04/SS پن کنفیگریشن
| پن 1 | RA2 — Bidirectional I/O port A bit 2 |
| پن 2 | RA3 — Bidirectional I/O port A bit 3 |
| پن 3 | RA4/T0CKI — Bidirectional I/O port A bit 4 / Timer0 clock input |
| پن 4 | MCLR/VPP — Master Clear (reset) input / Programming voltage input |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Bidirectional I/O port B bit 0 / External interrupt input |
| پن 7 | RB1 — Bidirectional I/O port B bit 1 |
| پن 8 | RB2 — Bidirectional I/O port B bit 2 |
| پن 9 | RB3 — Bidirectional I/O port B bit 3 |
| پن 10 | RB4 — Bidirectional I/O port B bit 4 |
| پن 11 | RB5 — Bidirectional I/O port B bit 5 |
| پن 12 | RB6 — Bidirectional I/O port B bit 6 |
| پن 13 | RB7 — Bidirectional I/O port B bit 7 |
| پن 14 | VSS — Ground reference |
| پن 15 | OSC1/CLKIN — Oscillator crystal input / External clock input |
| پن 16 | OSC2/CLKOUT — Oscillator crystal output / Clock output (Fosc/4) |
| پن 17 | RC0 — Bidirectional I/O port C bit 0 |
| پن 18 | RC1 — Bidirectional I/O port C bit 1 |
| پن 19 | RC2 — Bidirectional I/O port C bit 2 |
| پن 20 | RC3 — Bidirectional I/O port C bit 3 |
| پن 21 | RC4 — Bidirectional I/O port C bit 4 |
| پن 22 | RC5 — Bidirectional I/O port C bit 5 |
| پن 23 | RC6 — Bidirectional I/O port C bit 6 |
| پن 24 | RC7 — Bidirectional I/O port C bit 7 |
| پن 25 | VDD — Positive supply (5 V) |
| پن 26 | RD0 — Bidirectional I/O port D bit 0 |
| پن 27 | RD1 — Bidirectional I/O port D bit 1 |
| پن 28 | RA0 — Bidirectional I/O port A bit 0 |
عام استعمالات
PIC16LC57CT-04/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Legacy Industrial Control Logic, Appliance User Interface Controllers, Sensor Signal Conditioning Front-Ends, Simple State-Machine Controllers, Educational and Hobby Embedded Projects, Low-Volume Mask-ROM Downgrade Products.
Legacy Industrial Control Logic
The PIC16LC57CT-04/SS suits legacy industrial control panels where a deterministic 4 MHz RISC core and 3 KB of OTP code deliver state-machine logic for relay sequencing, indicator lamp control, and discrete I/O expansion. Its 20 I/O lines and 5 V supply align with industrial 24 V-sensed signal conditioning front-ends, and the LC low-power CMOS process minimizes quiescent current in always-on panels. Compared with a 16-bit MCU, the 8-bit PIC16C5X keeps cost low while still offering a Watchdog Timer and Power-On Reset required by IEC 61131-style reliability expectations. Use it where a long-lived firmware image and absence of in-system reprogramming are acceptable.
تجویز کردہ
Appliance User Interface Controllers
Inside a washing machine, microwave, or dishwasher user-interface board, the PIC16LC57CT-04/SS provides a low-cost 8-bit core that scans keypads, drives 7-segment or LED indicators, and supervises basic safety interlocks. Its 4 MHz throughput is sufficient for switch-debounce, rotary-encoder handling, and triac-fire timing, while the 3 KB OTP program memory holds well-tested firmware that does not need field updates. The 28-SSOP footprint keeps the BOM compact for tight UI board layouts, and the LC process keeps standby current low enough to meet energy-star idle budgets.
تجویز کردہ
Sensor Signal Conditioning Front-Ends
The PIC16LC57CT-04/SS works well as a co-processor in sensor modules, executing linearization routines for thermistor or strain-gauge bridges, and forwarding calibrated digital values over GPIO bit-banged protocols. Its 8-bit ALU and 4 MHz clock are adequate for polynomial correction at modest sample rates, and the 20 I/O lines handle multiple analog-multiplexer channels via on-chip comparators or external ADC ICs. The Watchdog Timer recovers from firmware faults common in electrically noisy industrial sensor environments, and the LC process keeps self-heating low to avoid corrupting precision analog measurements.
تجویز کردہ
Simple State-Machine Controllers
For finite-state-machine applications such as automatic test fixtures, vending machine actuators, or traffic-control logic, the PIC16LC57CT-04/SS provides a predictable 8-bit RISC core with 33 single-cycle instructions, enabling tight event-loop timing. The 3 KB OTP fits typical state tables plus I/O handling, while the 7-level hardware stack accommodates nested interrupt service routines without software stack emulation. Its SSOP-28 footprint is widely available on evaluation boards, and the LC CMOS process keeps standby current low for battery-backed or energy-harvesting fixtures.
تجویز کردہ
Educational and Hobby Embedded Projects
Hobbyists and university embedded-systems classes use the PIC16LC57CT-04/SS to teach 8-bit microcontroller fundamentals, RISC pipeline concepts, and OTP-vs-Flash tradeoffs on a real production part. Its 20 I/O pins drive LEDs, switches, and simple character LCDs, while the 3 KB OTP memory fits introductory lesson firmware. The 28-SSOP package is easy to breadboard with adapter boards, and the low-cost LC CMOS variant lets students keep lab kits affordable. Pairing it with the PICkit programmer and MPLAB X IDE provides a complete classroom learning platform.
تجویز کردہ
Low-Volume Mask-ROM Downgrade Products
After firmware is fully validated on Flash or windowed PIC16 variants, the PIC16LC57CT-04/SS serves as the cost-down production MCU for low-volume product lines where OTP programming cost is acceptable. The LC low-power CMOS process keeps per-unit quiescent current low across the temperature range, and the 28-SSOP footprint is shared with most PIC16C5X and PIC16F887-class parts, simplifying BOM reuse. Once volume justifies the mask-ROM NRE, designers typically migrate to a ROM-coded PIC16CR57C or a Flash-based PIC16F1xxx part for the next product revision.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16LC57CT-04/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16LC57C-04I/SS | PIC16LC57CT-04I/SS | PIC16C57C-04/SS | PIC16C57CT-04/SS | PIC16LC56A-04/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 3 KB OTP (2K x 12) | 3 KB OTP (2K x 12) | 3 KB OTP (2K x 12) | 3 KB OTP (2K x 12) | 3 KB OTP (2K x 12) | 1 KB OTP (smaller) |
| Process Variant | LC (low-power CMOS) | LC (low-power CMOS) | LC (low-power CMOS) | Standard CMOS | Standard CMOS | LC (low-power CMOS) |
| Temperature Grade | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Commercial (0C to +70C) |
| I/O Pins | 20 | 20 | 20 | 20 | 20 | 20 |
| Packaging Form | Tape & Reel | Tube (non-T) | Tape & Reel | Tube (non-T) | Tape & Reel | Tape & Reel |
| Pin-to-Pin Compatible | Yes (this part) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in, smaller memory) |
اہم امتیازی خصوصیات
- Low-power CMOS process variant with reduced quiescent current (بمقابلہPIC16C57C-04/SS)
- Commercial temperature range for low-cost applications (بمقابلہPIC16LC57C-04I/SS)
- Larger program memory than the PIC16LC56A sibling (بمقابلہPIC16LC56A-04/SS)
ڈیزائن نوٹس
Because PIC16LC57CT-04/SS uses One-Time-Programmable (OTP) EPROM, it cannot be re-programmed in-circuit. Any firmware bug discovered after programming bricks the device and forces replacement. Always validate firmware on a Flash-based PIC16F variant (for example PIC16F877A-I/P) or a windowed PIC16C57C JW device before committing to OTP production parts.
The LC (low-power CMOS) process variant reduces quiescent current relative to the standard PIC16C57C, making it suitable for battery-backed or standby applications. Decouple VDD (pin 25) with a 100 nF ceramic capacitor placed within 5 mm of the package, plus a bulk 10 uF tantalum or electrolytic cap on the 5 V rail to suppress supply glitches during MCLR transitions.
The 28-SSOP package has 0.65 mm pitch gull-wing leads that require careful PCB layout: keep solder mask dams between pads, and use a fine-pitch soldering profile with peak temperature under 250C to avoid lifting the small gull-wing leads. Place the MCLR/VPP pull-up resistor (typically 10 kohm to VDD) close to pin 4 to ensure clean reset behavior, and route the OSC1/OSC2 traces short and symmetric for stable oscillator operation.
The PIC16LC57CT-04/SS has only 20 usable I/O pins despite the 28-SSOP package; the remaining 8 pins are dedicated to VDD, VSS, MCLR/VPP, OSC1, OSC2, and two redundant VSS/VDD pins. Plan your PCB I/O assignment to avoid wasting pins on functions that could be moved to existing port pins, and route the high-current switching outputs (driving relays or LEDs) on RC0-RC7 to balance thermal dissipation across the die.
تعمیل کی معلومات
RoHS, REACH, lead-free, and halogen-free status not present in the verified web data for this legacy OTP MCU - consult Microchip product compliance documentation. AEC-Q100 not applicable (legacy commercial/industrial part, not automotive qualified).
