PIC16LCE625-04E/SS - 8-bit OTP MCU, 4MHz, 3.5KB | Microchip
Référence : PIC16LCE625-04E/SS ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.36 | $336,00 |
| 500 | $2.95 | $1 475,00 |
| 1 000 | $2.63 | $2 630,00 |
PIC16LCE625-04E/SS Présentation
An OTP microcontroller is a type of embedded controller that uses one-time-programmable ROM for code storage - the program is written once via a device programmer and cannot be erased or rewritten, making OTP parts ideal for cost-sensitive high-volume production where firmware is stable. Within the broader taxonomy, this part is a microcontroller (MCU) -> 8-bit MCU -> PIC16 family -> PIC16C mid-range core -> RISC microcontroller -> embedded processor -> semiconductor. OTP differs from Flash (re-programmable in-circuit) and EPROM (UV-erasable windowed) variants - OTP offers the lowest per-unit cost at the price of field-upgradeability.
Key differentiating features include the 14-bit wide instruction word with only 35 single-cycle instructions to learn (200 ns instruction cycle at 20 MHz input, except branches which are 2-cycle), enabling rapid firmware development. The integrated 128-byte EEPROM provides non-volatile data storage for parameters, calibration values, or user settings that survive power cycles. Brown-out reset, watchdog timer, and power-on reset are standard on-chip peripherals, alongside one analog comparator and a capture/compare/PWM (CCP) module for basic mixed-signal tasks.
The PIC16C core uses a Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The 8-level deep hardware stack, two 8-bit file-select registers for banked RAM access, and interrupt-driven design with prioritized vectored interrupts make the PIC16LCE625 a workhorse for deterministic real-time control. The 'LC' suffix indicates a wide-voltage (2.5V-5.5V) variant supporting both 3.3V and 5V rails; the 'E' grade extends the temperature range to +125°C; '04' designates a 4 MHz rated speed grade; 'SS' denotes the 20-pin SSOP surface-mount package.
Typical applications include low-cost consumer appliances, sensor signal conditioning front-ends, LED lighting controllers, simple motor and solenoid drivers, and industrial automation modules where deterministic 8-bit control suffices. Designers use it in battery-powered devices thanks to the 2.5V lower rail, in white-goods appliances requiring +125°C headroom, and in remote controls and toys where BOM cost dominates.
When designing with this OTP part, plan firmware carefully and reserve one-time programmable PID budget for late changes - use an emulated Flash variant (PIC16F) during development and migrate to OTP for production cost-down. Account for SSOP thermal limitations above 80°C ambient and provide adequate decoupling on VDD/VSS pairs per datasheet Section 2.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design considerations not consolidated in any single manufacturer or distributor source.
Alternatives de remplacement direct pour PIC16LCE625-04E/SS — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16LCE625-04E/SS (même facteur de forme et même empreinte) — différant par Program Memory Size, RAM Size, Core Architecture, Instruction Set, Program Memory Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16LCE625T-04E/SS
✅ Remplacement direct✓ En stock
$5.78 / unité
Voir la fiche technique →PIC16LCE625-04I/SS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16LCE624-04E/SS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16LC622A-04E/SS
✅ Remplacement direct✓ En stock
$2.42 / unité
Voir la fiche technique →PIC16LCE625-04E/SS Valeurs maximales et caractéristiques électriques
| Core Architecture | 8-bit PIC16C mid-range RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 x 8 bytes |
| EEPROM Size | 128 x 8 bytes |
| Fréquence d'horloge maximale | 4 MHz |
| Instruction Cycle | 200 ns (at 20 MHz input, except branches 2-cycle) |
| Number of I/O Pins | 13 |
| Oscillator Type | External |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Plage de température de fonctionnement | -40 °C to +125 °C (E grade) |
| Boîtier / Format | 20-SSOP (0.209 inch / 5.30 mm body width) |
| Type de montage | Surface Mount |
| Instruction Set Size | 35 instructions |
| On-chip Peripherals | Brown-out reset, watchdog timer, power-on reset, analog comparator, CCP |
Configuration des broches de PIC16LCE625-04E/SS
| Broche 1 | RA2 — Port A bit 2 (bidirectional I/O) |
| Broche 2 | RA3 — Port A bit 3 (bidirectional I/O) |
| Broche 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input (open-drain output) |
| Broche 4 | MCLR/VPP — Master clear (reset, active low) / programming voltage input |
| Broche 5 | VSS — Ground reference |
| Broche 6 | RB0/INT — Port B bit 0 / external interrupt input |
| Broche 7 | RB1 — Port B bit 1 |
| Broche 8 | RB2 — Port B bit 2 |
| Broche 9 | RB3 — Port B bit 3 |
| Broche 10 | RB4 — Port B bit 4 (interrupt-on-change) |
| Broche 11 | RB5 — Port B bit 5 (interrupt-on-change) |
| Broche 12 | RB6 — Port B bit 6 (interrupt-on-change / ICSP clock) |
| Broche 13 | RB7 — Port B bit 7 (interrupt-on-change / ICSP data) |
| Broche 14 | VSS — Ground reference (secondary) |
| Broche 15 | OSC2/CLKOUT — Oscillator output / clock out (Fosc/4) |
| Broche 16 | OSC1/CLKIN — Oscillator input / external clock input |
| Broche 17 | RA0 — Port A bit 0 (analog comparator input) |
| Broche 18 | RA1 — Port A bit 1 (analog comparator input) |
| Broche 19 | VSS — Ground reference |
| Broche 20 | VDD — Positive supply voltage (2.5 V - 5.5 V) |
Applications typiques
PIC16LCE625-04E/SS convient pour 6 applications: Consumer Appliance Control, LED Lighting Controllers, Industrial Sensor Signal Conditioning, Remote Control and Toy Electronics, Battery-Powered Sensor Modules, White-Goods and Harsh-Environment Controls.
Consumer Appliance Control
PIC16LCE625-04E/SS fits consumer appliance control boards where deterministic 8-bit logic and +125°C headroom matter. Its 13 I/O pins drive relays, triacs, keypads and seven-segment displays in washing machines, microwaves, and small kitchen appliances. The 4 MHz core executes 200 ns single-cycle instructions, enough for brushed-motor PWM, sensor sampling at 1 kHz, and user-interface debounce in real time. The 2.5V-5.5V wide-voltage rail accepts both 3.3V sensor electronics and 5V gate-drive signals without level shifters. The integrated brown-out reset and watchdog timer protect against mains brown-outs and firmware lockups. Designers pair it with the ULN2003A driver and a zero-cross triac such as BTA16 for safe mains switching.
Recommandé
LED Lighting Controllers
PIC16LCE625-04E/SS powers cost-optimized LED controllers for decorative, accent, and architectural lighting where BOM cost dominates. The CCP module generates PWM up to several kHz for dimming, while the 3.5 KB OTP stores color-sequence tables and dimming curves. With 128 bytes of EEPROM, last-set brightness and color survive power cycles - useful for installed fixtures. The 2.5V lower rail lets a single Li-ion cell or 3.3V regulated supply power both the MCU and LED driver. The +125°C extended temperature grade supports enclosed luminaires where ambient plus LED self-heating pushes the PCB above +85°C. Designers often pair it with constant-current LED drivers like the AL8860 or BCR402U.
Recommandé
Industrial Sensor Signal Conditioning
PIC16LCE625-04E/SS serves as a smart front-end for 4-20 mA loop sensors, RTD conditioning, and bridge-strain-gauge readouts. The on-chip analog comparator, 8-bit ADC-equivalent via comparator + PWM techniques, and 128 bytes of EEPROM for calibration constants enable linearization tables for thermocouples and load cells. The 4 MHz core handles linearization, averaging, and HART-style digital comms over a single wire. Wide-voltage operation (2.5-5.5V) accepts 24V loops down-regulated to 5V or 3.3V. The E grade temperature rating supports outdoor and under-hood environments. Designers frequently pair it with XTR105 4-20 mA loop transmitters and INA780 rail-to-ground sense amps.
Recommandé
Remote Control and Toy Electronics
PIC16LCE625-04E/SS is well-suited to RF remote controls, IR transmitters, low-cost toys, and educational electronics. The 13 I/O pins drive pushbuttons, IR LEDs, status LEDs, buzzers, and small hobby servos. The 4 MHz core runs Manchester or PPM encoding for hobbyist 433 MHz/315 MHz OOK transmitters, while the OTP memory holds static button maps and timing sequences. The 2.5V lower rail allows 2xAA or single-cell Li-ion battery power, and the 128B EEPROM stores user preferences. Low-cost OTP pricing makes the part attractive in toy segments where every cent of BOM matters. Designers pair it with simple OOK TX modules and inexpensive piezo buzzers.
Recommandé
Battery-Powered Sensor Modules
PIC16LCE625-04E/SS operates in battery-powered wireless sensor nodes and wearable accessories where 2.5V minimum rail lets a single CR2032 coin cell or rechargeable Li-ion deliver long runtime. Sleep current is dominated by the external oscillator and any active peripherals - the MCU itself draws microamps in sleep mode. The OTP memory holds a single fixed firmware image, eliminating field-update flash wear concerns in 24/7 sensing deployments. The 128B EEPROM retains sensor calibration and node ID across deep-sleep cycles. Designers pair it with low-power radios (e.g. nRF24L01+ or sub-GHz transceivers) and digital sensors like the BME280 or SHT31.
Recommandé
White-Goods and Harsh-Environment Controls
PIC16LCE625-04E/SS fits white-goods controls (dishwashers, ovens, washing machines) and automotive under-hood auxiliaries thanks to the E grade -40°C to +125°C operating range. The wide-voltage 2.5V-5.5V supply tolerates 12V automotive rails stepped down by simple linear or buck regulators. Brown-out reset protects against cranking transients, and the watchdog timer recovers from firmware lock-ups. The 4 MHz core handles keypad scanning, LCD or seven-segment UI, pump/valve sequencing, and basic safety interlocks. Designers frequently combine the MCU with high-side switches like the BTS6143D or VIPER26LD off-line converters.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16LCE625-04E/SS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16LCE625T-04E/SS | PIC16LCE625-04I/SS | PIC16LCE624-04E/SS | PIC16LC622A-04E/SS |
|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | PIC16C mid-range 8-bit RISC | PIC16C mid-range 8-bit RISC | PIC16C mid-range 8-bit RISC | PIC16C mid-range 8-bit RISC | PIC16C mid-range 8-bit RISC |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 1.75 KB OTP (-50%) | 3.5 KB OTP |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Operating Voltage | 2.5 V - 5.5 V | 2.5 V - 5.5 V | 2.5 V - 5.5 V | 2.5 V - 5.5 V | 2.5 V - 5.5 V |
| Temperature Grade | -40 °C to +125 °C (E) | -40 °C to +125 °C (E) | -40 °C to +85 °C (I) | -40 °C to +125 °C (E) | -40 °C to +125 °C (E) |
Principaux différenciateurs
- Extended temperature grade (E) with same PIC16C feature set (vs PIC16LCE625-04I/SS)
- Lowest per-unit cost among PIC16C variants (vs PIC16F84A-04E/SS)
- Integrated 128-byte EEPROM for parameter storage (vs PIC16LCE624-04E/SS)
Notes de conception
Estimated: at 5 V VDD, 4 MHz external oscillator, and 10 pF load per pin, the PIC16LCE625-04E/SS draws approximately 2-5 mA active. Add a 100 nF decoupling capacitor on VDD (pin 20) and a bulk 1-10 uF on the supply rail placed within 25 mm of the IC. VSS pins (5, 14, 19) must all be connected to a low-impedance ground plane. For battery applications, switch to sleep mode aggressively - the brown-out reset can be configured to operate in sleep to protect the battery from deep discharge.
Route the OSC1/OSC2 traces short and symmetric, with a ground guard trace, when using a crystal. Place the 22-33 pF crystal load capacitors within 5 mm of OSC1/OSC2. Keep MCLR/VPP trace short and place the 10 kohm pull-up to VDD close to the pin. For SSOP packages, a 0.5 mm land-pitch footprint is required; a copper thermal pad under the exposed pad (if present) is not applicable on the 20-SSOP. Avoid running noisy relay or triac traces under the oscillator area.
OTP parts cannot be reprogrammed - a programming error means scrapping the IC. Verify the configuration bits (oscillator selection, watchdog, brown-out, code protection) BEFORE bulk programming production units. The '04' suffix indicates 4 MHz maximum clock speed - do not exceed this even at lower VDD, or instruction timing will be invalid. E grade parts must operate within -40 to +125 °C ambient, but the die junction temperature can be higher; account for self-heating in enclosed luminaires. Always triple-check the part marking against the datasheet ordering code matrix to avoid confusing LC, LF and CE variants.
Informations de conformité
RoHS and REACH compliance declared by Microchip for SSOP lead-free matte-tin finish. Not AEC-Q100 qualified - for automotive safety-critical applications use AEC-Q100-grade dsPIC or PIC18 equivalents. Conflict-minerals declaration per Microchip CMRT.
