PIC16C57T-XTE/SS - 8-Bit 3KB OTP MCU 28-SSOP | Microchip
MPN: PIC16C57T-XTE/SS ✗ Cuối đờiPIC16C57T-XTE/SS Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data RAM, I/O ports, and peripherals on one die. The PIC16C5X family belongs to the original baseline PIC architecture, one tier below Mid-Range PIC16 devices, and sits inside the broader 8-bit MCU category alongside 8051 and AVR. The PIC16C5X delivers 12-bit wide instructions with high symmetry, achieving 2:1 code compression over competitive 8-bit MCUs in the same price class, while its RISC instruction set reduces development time.
Key features of the PIC16C57T-XTE/SS include 72 bytes of general-purpose RAM, 20 I/O pins, a 12-bit instruction word, 2-level hardware stack, single 8-bit timer (TMR0), watchdog timer, and power-on reset. The device uses a Harvard architecture with separate program and data buses, executes one instruction per internal clock cycle (4 oscillator cycles per instruction), and supports 33 single-word instructions. Power-saving SLEEP mode and selectable oscillator options (RC, XT, HS, LP) are available depending on the device variant.
Typical applications include low-cost embedded control in consumer appliances, automotive subsystems (body controllers, sensor interfaces), industrial control, smart sensors, and battery-powered devices. The extended operating temperature range supports demanding environments, and the small SSOP footprint makes it suitable for space-constrained PCB designs. Its low cost and deterministic interrupt handling make the PIC16C57 family a common choice for high-volume legacy designs.
When designing with the PIC16C57T-XTE/SS, ensure the chosen oscillator mode (XT) matches the external crystal or resonator, place decoupling capacitors close to VDD/VSS pins, and use the MCLR reset pin with the recommended 10 kohm pull-up for proper reset behavior. Note that OTP memory can only be programmed once - consider PIC16F or PIC16C variants with UV-erasable EPROM if code iteration is required.
This page synthesizes distributor pricing, drop-in Microchip baseline alternatives, and practical design notes not consolidated in a single manufacturer datasheet document.
Bộ thay thế dễ dàng lắp đặt cho PIC16C57T-XTE/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 PIC16C57T-XTE/SS (cùng hình factor và footprint) — khác nhau ở Core Architecture, Maximum Clock Frequency, Program Memory Size, Family, Instruction Execution Time.
PIC16F57-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57C-20I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57CT-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57T-XTE/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC baseline (Harvard, RISC) |
| Family | PIC16C5X |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12) |
| Data RAM | 72 bytes |
| Tần số xung maksimum | 4 MHz |
| Instruction Word Width | 12 bits |
| Điện áp cung cấp | 5 V (typical) |
| Number of I/O Pins | 20 |
| Timers | 1 x 8-bit (TMR0) |
| Oscillator Type | XT (crystal/resonator, up to 4 MHz) |
| Watchdog Timer | Yes |
| Package Type | 28-SSOP (5.30 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tape & Reel |
Cấu hình chân PIC16C57T-XTE/SS
| Chân 1 | RA2 — Bidirectional I/O port A bit 2 |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 3 | RTCC — TMR0 real-time clock/counter input |
| Chân 4 | MCLR — Master clear (reset) input, active low |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0 — Bidirectional I/O port B bit 0 (interrupt on change) |
| 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 | VSS — Ground reference |
| Chân 15 | OSC1 — Crystal oscillator input |
| Chân 16 | OSC2 — Crystal oscillator output |
| Chân 17 | RC0 — Bidirectional I/O port C bit 0 |
| Chân 18 | RC1 — Bidirectional I/O port C bit 1 |
| Chân 19 | RC2 — Bidirectional I/O port C bit 2 |
| Chân 20 | RC3 — Bidirectional I/O port C bit 3 |
| Chân 21 | RC4 — Bidirectional I/O port C bit 4 |
| Chân 22 | RC5 — Bidirectional I/O port C bit 5 |
| Chân 23 | RC6 — Bidirectional I/O port C bit 6 |
| Chân 24 | RC7 — Bidirectional I/O port C bit 7 |
| Chân 25 | VSS — Ground reference |
| Chân 26 | VDD — Positive supply voltage |
| Chân 27 | RA0 — Bidirectional I/O port A bit 0 |
| Chân 28 | RA1 — Bidirectional I/O port A bit 1 |
Ứng dụng tiêu biểu
PIC16C57T-XTE/SS phù hợp cho 7 Áp dụngs: Consumer Appliance Control, Automotive Body Electronics, Industrial Sensor Interface, Battery-Powered Remote Controls, LED Display Drivers, Smart Card and Security Tokens, Educational and Hobby Projects.
Consumer Appliance Control
The PIC16C57T-XTE/SS fits consumer appliance control applications because of its 20 I/O pins sufficient for keypad scanning, LED/LCD driving, relay control, and sensor interfacing in a single chip. Its 3 KB OTP program memory accommodates mid-complexity state machines for washing machines, microwave ovens, and small kitchen appliances. The 4 MHz instruction throughput gives 1 MIPS, which is plenty for slow electromechanical sequencing. Designers appreciate the deterministic interrupt response - critical for safety timing in heating-element control. The 28-SSOP package keeps the MCU footprint small enough to fit inside appliance control boards alongside triac drivers. For high-volume consumer production, the OTP-only constraint is acceptable once firmware is finalized, and the legacy Microchip baseline toolchain (MPLAB) is mature and well-documented.
Được đề xuất
Automotive Body Electronics
The PIC16C57T-XTE/SS is widely deployed in automotive body-electronics sub-assemblies such as mirror controllers, seat-position memories, and interior lighting drivers where the 8-bit baseline PIC is sufficient. Its 72 bytes of RAM and 3 KB OTP support simple sensor-fusion and PWM routines, while the extended commercial temperature grade handles under-dash environments. The Harvard architecture and single-cycle instruction execution deliver predictable timing for motor-control loops. The PIC16C57's small code footprint and high code density (2:1 over 8051) keep BOM costs low - a primary driver in automotive tier-2 modules. For new automotive designs requiring AEC-Q100, designers should move to PIC16F57-Q1 or PIC16F18xxx AEC-Q100 qualified variants instead.
Được đề xuất
Industrial Sensor Interface
For low-cost industrial sensor-interface boards, the PIC16C57T-XTE/SS offers 20 I/O pins and an 8-bit TMR0 timer that, combined with external interrupt-on-change pins, can handle periodic sensor reads at sub-millisecond rates. The 4 MHz instruction rate executes ADC sample averaging and linearization in real time for thermocouple, RTD, or strain-gauge signal conditioning. The 28-SSOP package allows compact PCB designs that fit inside sensor heads or DIN-rail transmitter housings. Its 5 V supply aligns with industrial 24 V-to-5 V regulator rails. The 12-bit instruction word keeps code compact, and MPLAB IDE support is mature. For modern industrial 4-20 mA loops with HART or IO-Link, migrate to PIC16F1778 or PIC16F18xxx baseline-compatible devices.
Được đề xuất
Battery-Powered Remote Controls
The PIC16C57T-XTE/SS is a cost-effective controller for battery-powered remote-control units such as garage-door openers, RF key fobs, and simple IR transmitters. Its SLEEP mode combined with watchdog-timer wakeup provides multi-year battery life on a single coin cell, and the 20 I/O pins handle matrix keypads, status LEDs, and an RF/IR modulator output. The 3 KB OTP memory stores encrypted rolling-code algorithms and button-debounce state machines. The 28-SSOP package keeps the PCB small enough to fit inside key-fob housings. The 5 V operation aligns with lithium coin-cell boost converters. Modern replacements with integrated radio transceivers (PIC16F15313) simplify BOM further but require firmware rewrite.
Được đề xuất
LED Display Drivers
The PIC16C57T-XTE/SS can multiplex-drive 7-segment LED displays, dot-matrix panels, and addressable RGB-LED strips using its 20 I/O pins and software-PWM or hardware-TMR0 interrupt timing. The 4 MHz clock supports refresh rates above 100 Hz for flicker-free 8-digit 7-segment displays. The 3 KB OTP holds lookup tables for character decoding and brightness curves. The 28-SSOP footprint allows integration inside small sign and indicator housings. For pixel-art LED matrices, the 72-byte RAM limits framebuffer size, so use character-mode display patterns instead. Designers targeting higher channel counts should evaluate the PIC16F57 with its larger RAM or a dedicated LED-driver like the TLC59401.
Được đề xuất
Smart Card and Security Tokens
The PIC16C57T-XTE/SS has historically been used in low-cost smart-card and security-token applications because of its compact OTP memory (preventing code extraction) and small SSOP footprint. The 8-bit baseline PIC's deterministic timing is suitable for cryptographic routines that require constant execution time to resist side-channel attacks. The 3 KB OTP stores authentication protocols, secret-key material, and simple challenge-response logic. Security-sensitive applications should consider migrating to PIC16F18446 with secure boot and crypto accelerators. The PIC16C57 family remains in production for legacy payment and access-control tokens where design re-validation cost outweighs migration benefit.
Được đề xuất
Educational and Hobby Projects
The PIC16C57T-XTE/SS remains popular in educational and hobby contexts because of its simple PIC16C5X baseline architecture, well-documented instruction set, and abundant free MPLAB IDE toolchain support. Students learning embedded C or assembly benefit from the 33 single-word instructions, 2-level hardware stack, and 12-bit instruction word - concepts that translate to all modern PIC MCUs. The 28-SSOP package is breadboard-friendly with SSOP-to-DIP adapter boards, and 5 V operation works directly with USB programmers like the PICkit 3. The 3 KB OTP forces disciplined firmware planning. For modern hobby projects requiring USB, PWM, or ADC, the PIC16F57-I/SS or PIC16F18324 offers significantly more capability at similar cost.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C57T-XTE/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 | PIC16F57-I/SS | PIC16C57C-20I/SS | PIC16C57CT-04I/SS | PIC16C57T-10I/SO |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | SOIC-28 (different) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3 KB OTP | 3 KB Flash | 3 KB OTP | 3 KB OTP | 2 KB OTP |
| Max Clock Frequency | 4 MHz | 20 MHz | 20 MHz | 4 MHz | 10 MHz |
| Data RAM | 72 bytes | 72 bytes | 72 bytes | 72 bytes | 72 bytes |
| I/O Pins | 20 | 20 | 20 | 20 | 20 |
| ICSP Support | No | Yes | No | No | No |
| Lifecycle Status | Obsolete | Active | Active | Active | Obsolete |
Bảo phân biệt quan trọng
- Active lifecycle Flash replacement available (vsPIC16F57-I/SS)
- Same-family 20 MHz industrial alternative (vsPIC16C57C-20I/SS)
- Smaller SSOP footprint versus SOIC-28 variants (vsPIC16C57T-10I/SO)
Ghi chú thiết kế
The PIC16C57T-XTE/SS operates from a single 5 V supply (typical) with VDD on pin 26 and VSS on pins 5, 14, and 25. Decoupling: place a 100 nF ceramic capacitor as close as possible to VDD pin 26, with a bulk 10 uF tantalum or aluminum cap on the same supply rail. The device has no internal voltage regulator, so the external 5 V rail must be clean - add an LC pi-filter if the supply is shared with motors or relays. Estimated: idle current is approximately 2 mA at 4 MHz and 5 V per the PIC16C5X family datasheet, dropping to under 1 uA in SLEEP mode with watchdog disabled.
Route the XT crystal traces from pins 15 (OSC1) and 16 (OSC2) as short and symmetric as possible, with the crystal placed within 5 mm of the MCU. Use a ground guard ring around the crystal to reduce EMI coupling. The 28-SSOP package has 0.65 mm pitch, which requires fine-pitch PCB fabrication (8 mil traces minimum) but no special via-in-pad techniques. Estimated: the 28-SSOP thermal pad is not present, so thermal dissipation is by pins only; power consumption is low enough that no thermal management is required.
Three pitfalls to avoid with the PIC16C57T-XTE/SS: (1) OTP memory can only be programmed once - if code bugs are found after programming, the chip must be discarded; use PIC16F57-I/SS for development. (2) The PIC16C5X baseline has only a 2-level hardware stack, so C code with nested function calls will overflow; restrict code to flat assembly or shallow call trees. (3) The MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF cap to ground for reliable reset; floating MCLR causes intermittent brown-out behavior. Source: Microchip PIC16C5X family datasheet 30453g, sections on reset and programming.
Thông tin tuân thủ
RoHS and REACH status not explicitly stated in the provided data - [DATA_NEEDED] for confirmed compliance. The PIC16C57T-XTE/SS is a legacy OTP EPROM part predating full RoHS/REACH documentation; the standard PIC16C5X family datasheet does not list compliance certifications. For automotive AEC-Q100 requirements, use the PIC16F57-Q1 variant.
