PIC16C54-XTE/SO - 8-bit CMOS MCU, 768B OTP, SOIC-18 | Microchip
MPN: PIC16C54-XTE/SO ✗ Tapus ng BuhayPIC16C54-XTE/SO Ulas
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.
Mga alternatibo na pwedeng ilagay na PIC16C54-XTE/SO — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC16C54-XTE/SO (parehas na form factor at footprint) — pagkakaiba sa Package, Core Architecture, Instruction Set, Operating Temperature, Timers.
PIC16C54C-04/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C54C-20/SO
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC16C54C-04I/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C54-RC/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C54-XT/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16F54-I/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC16C54-XTE/SO Mga Pinakamataas na Rating at Electrical Characteristics
| 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 |
| Temperature na Operasyon | -40 C to +125 C (Extended) |
| Maksimum na Taktiko ng Oras | 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 |
| Packhaging | 18-pin SOIC (0.300", 7.50 mm width) |
| Uri ng Pagpapasok | Surface Mount |
| Level ng MSL | 1 |
Pin Configuration ng PIC16C54-XTE/SO
| Pin 1 | RA2 — Bidirectional I/O port A bit 2; high-current sink/source |
| Pin 2 | RA3 — Bidirectional I/O port A bit 3; high-current sink/source |
| Pin 3 | RB0/INT — Bidirectional I/O port B bit 0; external interrupt input |
| Pin 4 | RB1 — Bidirectional I/O port B bit 1 |
| Pin 5 | RB2 — Bidirectional I/O port B bit 2 |
| Pin 6 | RB3 — Bidirectional I/O port B bit 3 |
| Pin 7 | RB4 — Bidirectional I/O port B bit 4 |
| Pin 8 | RB5 — Bidirectional I/O port B bit 5 |
| Pin 9 | RB6 — Bidirectional I/O port B bit 6 |
| Pin 10 | RB7 — Bidirectional I/O port B bit 7 |
| Pin 11 | VSS — Ground reference |
| Pin 12 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| Pin 13 | OSC2/CLKOUT — Oscillator output / clock output (XT mode) |
| Pin 14 | OSC1/CLKIN — Oscillator input / external clock input (XT mode) |
| Pin 15 | RA0 — Bidirectional I/O port A bit 0; high-current sink/source |
| Pin 16 | RA1 — Bidirectional I/O port A bit 1; high-current sink/source |
| Pin 17 | T0CKI — Timer 0 clock input (alternate function on RA2) |
| Pin 18 | MCLR/VPP — Master Clear reset input / programming voltage input |
Tipikal na mga Gamit
PIC16C54-XTE/SO ay nararapat para sa 6 aplikasyons: 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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC16C54-XTE/SO — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | 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) |
Pangunahing mga Pagkakaiba
- Extended-temperature grade (-40C to +125C) in SOIC-18 wide-body package (kumpara saPIC16C54C-20/SO)
- OTP EPROM with 768 B program memory and 33 single-cycle instructions (kumpara saPIC16F54-I/SO)
- Same SOIC-18 footprint across the entire PIC16C5X family (kumpara saPIC16C54-RC/SO)
Talaan ng Disenyo
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.
Impormasyon ng Pagsunod sa Kautusan
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.
