PIC16C54-XTE/SO - 8-bit CMOS MCU, 768B OTP, SOIC-18 | Microchip
MPN: PIC16C54-XTE/SO ✗ Cuối đờiPIC16C54-XTE/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O on one die. Within the broader semiconductor taxonomy it sits under microprocessor IC -> microcontroller -> 8-bit microcontroller -> CMOS RISC MCU. The PIC16C5X family specifically targets cost-sensitive embedded control applications where deterministic instruction execution, low power, and a small code footprint matter more than absolute computational throughput. Its 12-bit-wide instruction word yields roughly 2:1 code compression over typical 8-bit CISC competitors in the same price tier.
Key features of the PIC16C54-XTE/SO include a RISC architecture with 33 single-word/single-cycle instructions, hardware watchdog timer with on-chip RC oscillator, power-on reset, brown-out reset, and a four-source interrupt controller. The 8-bit timer/counter with programmable prescaler supports event counting and timing applications, while the high-current sink/source capability on RA0-RA3 allows direct LED driving in some configurations without external buffers.
The device uses a Harvard-class internal bus with separate program and data paths and a 2-stage pipeline, allowing most instructions to execute in one oscillator period. With a 20 MHz crystal the instruction cycle is 200 ns, providing up to 5 MIPS of throughput. Power consumption is approximately 2 mA at 5V/20 MHz and drops to under 1 uA in Sleep mode, making the part viable for battery-powered products.
Typical applications include appliance control, automotive subsystems (body controllers, instrument cluster drivers), security and access control peripherals, low-end remote controls, and industrial timer/counter modules. The wide-body SOIC-18 package simplifies hand-prototyping and rework on through-hole-friendly pad patterns, while the extended-temperature grade supports outdoor and under-hood deployments.
When migrating designs, note that the PIC16C54 is NRND (Not Recommended for new designs); new designs should target PIC16F54 (flash) or PIC16F57 (enhanced flash) for the same SOIC-18 footprint and toolchain compatibility. Brown-out reset voltage thresholds must be selected per the system supply tolerance; refer to the configuration word table before committing a layout.
This page synthesizes distributor pricing tiers, verified drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16C54-XTE/SO — 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 PIC16C54-XTE/SO (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Instruction Set, Operating Temperature, Timers.
PIC16C54C-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-20/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C54C-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54-RC/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54-XT/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F54-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54-XTE/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC RISC |
| Instruction Set | 33 single-word/single-cycle instructions |
| Program Memory | 768 bytes OTP EPROM |
| Data RAM | 25 bytes |
| I/O Pins | 12 |
| Operating Voltage | 3.0 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Extended) |
| Tần số xung maksimum | 20 MHz (external XT oscillator) |
| Timers | 1 x 8-bit timer/counter with prescaler |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| Brown-out Reset | Yes |
| Power-on Reset | Yes |
| Interrupt Sources | 4 |
| Hộp | 18-pin SOIC (0.300", 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 |
Cấu hình chân PIC16C54-XTE/SO
| Chân 1 | RA2 — Bidirectional I/O port A bit 2; high-current sink/source |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3; high-current sink/source |
| Chân 3 | RB0/INT — Bidirectional I/O port B bit 0; external interrupt input |
| Chân 4 | RB1 — Bidirectional I/O port B bit 1 |
| Chân 5 | RB2 — Bidirectional I/O port B bit 2 |
| Chân 6 | RB3 — Bidirectional I/O port B bit 3 |
| Chân 7 | RB4 — Bidirectional I/O port B bit 4 |
| Chân 8 | RB5 — Bidirectional I/O port B bit 5 |
| Chân 9 | RB6 — Bidirectional I/O port B bit 6 |
| Chân 10 | RB7 — Bidirectional I/O port B bit 7 |
| Chân 11 | VSS — Ground reference |
| Chân 12 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| Chân 13 | OSC2/CLKOUT — Oscillator output / clock output (XT mode) |
| Chân 14 | OSC1/CLKIN — Oscillator input / external clock input (XT mode) |
| Chân 15 | RA0 — Bidirectional I/O port A bit 0; high-current sink/source |
| Chân 16 | RA1 — Bidirectional I/O port A bit 1; high-current sink/source |
| Chân 17 | T0CKI — Timer 0 clock input (alternate function on RA2) |
| Chân 18 | MCLR/VPP — Master Clear reset input / programming voltage input |
Ứng dụng tiêu biểu
PIC16C54-XTE/SO phù hợp cho 6 Áp dụngs: Appliance Control, Automotive Body Controllers, Security and Access Control, Industrial Timer and Counter Modules, Low-End Remote Controls, Instrument Cluster Drivers.
Appliance Control
The PIC16C54-XTE/SO suits appliance controllers - washing-machine timers, dishwasher cycle controllers, microwave user interfaces - where its 768-byte OTP program store holds the full state machine and the 12 I/O pins drive relays, keypads, and 7-segment displays directly. With a 20 MHz XT crystal the 200 ns instruction cycle handles debounce, scan-loop, and relay-update tasks in a single cooperative scheduler; brown-out reset prevents EEPROM corruption of user-set wash cycles during brown-outs. Industrial: replace electromechanical timers with one MCU and a handful of discretes.
Được đề xuất
Automotive Body Controllers
The PIC16C54-XTE/SO extends to automotive body-electronics modules - window lifters, mirror adjusters, seat-position controllers - thanks to its extended temperature grade (-40C to +125C) and 5V supply tolerance. The 12 GPIO drive LEDs and relay coils directly; the watchdog timer with on-chip RC oscillator detects firmware lock-up without external components. While PIC16C54 is NRND, the part still ships in maintenance spare channels and aftermarket modules where PCB rework is unacceptable.
Được đề xuất
Security and Access Control
The PIC16C54-XTE/SO fits security panels, keypad entry controllers, and PIR-sensor signal-conditioning nodes. The 8-bit timer/counter with prescaler measures pulse widths from reed switches and PIR outputs; the 25-byte RAM holds scan state for 4x4 matrix keypads while the 768-byte OTP holds the lock-state machine and encryption-rotation routine. Brown-out reset preserves the armed/disarmed bit across brief supply interruptions from alarm sirens.
Được đề xuất
Industrial Timer and Counter Modules
The PIC16C54-XTE/SO is well-suited to industrial timer/counter modules - conveyor-belt index controllers, batch counters, machine-cycle monitors - where deterministic instruction timing and robust brown-out behavior matter. The 8-bit timer/counter with programmable prescaler counts up to 256 events per reload, chained in firmware for 16/24-bit counters; the 20 MHz XT mode delivers 5 MIPS for real-time event logging. The wide-body SOIC-18 simplifies hand-rework on legacy industrial control boards.
Được đề xuất
Low-End Remote Controls
The PIC16C54-XTE/SO powers cost-sensitive IR/RF remote controls for toys, ceiling fans, and entry-level audio gear where the OTP memory holds the keymap and transmit sequence. The 12 GPIO drive the keypad matrix, status LED, and IR modulator output directly; Sleep mode drops quiescent current below 1 uA so two AAA cells last the product lifetime. The 20 MHz XT clock provides accurate bit-timing for consumer-IR protocols (Sony, NEC, RC5) at the chosen carrier frequency.
Được đề xuất
Instrument Cluster Drivers
The PIC16C54-XTE/SO drives auxiliary instrument-cluster functions - telltale lamps, gauge stepper coils via external drivers, odometer pulse counters - in entry-level automotive and motorcycle dashboards. The high-current-sink RA0-RA3 pins drive telltale LEDs directly without transistors, while RB0-RB7 scan the mode-switch inputs. Extended temperature grade handles under-dash thermal stress; brown-out reset prevents odometer corruption during cranking transients.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C54-XTE/SO — 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 | PIC16C54C-04/SO | PIC16C54C-20/SO | PIC16C54C-04I/SO | PIC16F54-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-18 (0.300") | SOIC-18 (0.300") - same | SOIC-18 (0.300") - same | SOIC-18 (0.300") - same | SOIC-18 (0.300") - same |
| Program Memory | 768 B OTP EPROM | 768 B OTP EPROM | 768 B OTP EPROM | 768 B OTP EPROM | 768 B Flash |
| Maximum Clock Frequency | 20 MHz (XT) | 4 MHz | 20 MHz | 4 MHz | 20 MHz |
| Operating Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (Extended) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (reprogrammable) |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active |
| Approx. 1-pc Price (USD) | $3.39 | $2.40 (typical distributor) | $2.50 (typical distributor) | $2.60 (typical distributor) | $1.60 (typical distributor) |
Bảo phân biệt quan trọng
- Extended-temperature grade (-40C to +125C) in SOIC-18 wide-body package (vsPIC16C54C-20/SO)
- OTP EPROM with 768 B program memory and 33 single-cycle instructions (vsPIC16F54-I/SO)
- Same SOIC-18 footprint across the entire PIC16C5X family (vsPIC16C54-RC/SO)
Ghi chú thiết kế
PIC16C54-XTE/SO is NRND and uses one-time-programmable (OTP) EPROM - firmware cannot be field-upgraded. Estimate firmware size carefully against the 768-byte OTP budget before committing the design; budget approximately 20% headroom for future bug fixes. For new designs, target PIC16F54-I/SO which keeps the SOIC-18 footprint but adds flash memory for in-circuit reprogramming.
Place the 18-pin SOIC decoupling capacitor (100 nF ceramic + 10 uF tantalum/electrolytic) within 5 mm of the VDD pin (pin 14 area). Keep the XT crystal traces short and symmetric: route OSC1 (pin 15) and OSC2 (pin 16) directly to the crystal with ground guard traces; long traces cause oscillator start-up failures and EMI. Add a 1 kohm pull-up on MCLR/VPP (pin 18) for normal operation, and route the ICSP clock/data to dedicated test points to allow field programming without rework.
At 20 MHz and 5V the PIC16C54 draws roughly 10-15 mA active - less than 75 mW even worst case, so no heatsinking is needed. In Sleep mode current drops below 1 uA. However, the SOIC-18 has limited thermal mass for high-ambient industrial environments; ensure the junction-to-ambient thermal resistance (theta_JA approximately 100 C/W for SOIC-18) is accounted for if the enclosure traps heat. Brown-out reset is critical: configure the BOR voltage threshold to match the regulated supply tolerance so that VDD droops during motor inrush do not cause undefined program execution.
Thông tin tuân thủ
RoHS and lead-free status not stated in verified distributor data; refer to Microchip product page or declaration of conformity. PIC16C54 family is not AEC-Q100 qualified; for automotive safety-critical applications use AEC-Q100 qualified PIC16F equivalents. Conflict-mineral compliance per Microchip standard supplier declarations.
