PIC16LC622T-04/SO - 3.5KB OTP PIC MCU, 4MHz, SOIC-18 | Microchip
Teilenummer: PIC16LC622T-04/SO ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $5.3837 | $5,38 |
| 10 | $4.85 | $48,50 |
| 100 | $4.12 | $412,00 |
| 500 | $3.55 | $1.775,00 |
| 1.000 | $3.1 | $3.100,00 |
PIC16LC622T-04/SO Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O on one die. The PIC16C family uses a RISC Harvard architecture with 12-bit wide instructions and an 8-bit data path, supported by seven or eight special-function hardware registers and a two-level deep hardware stack. PIC16C sits in the product hierarchy: 8-bit MCU -> PIC microcontroller -> RISC embedded controller -> semiconductor. This sub-family is the "LC" low-power variant of the PIC16C62x line.
Key features of the PIC16LC622T-04/SO include 4 MHz maximum clock speed, OTP (one-time programmable) program memory, low-voltage 2.5V to 6.25V operation, 13 bidirectional I/O lines, watchdog timer, power-on reset, and brown-out detection circuitry. The "04" suffix denotes the 4 MHz speed grade; the "T" suffix denotes tape and reel packaging. The wide-body SO-18 (SOIC-18, 300 mil) surface-mount package provides mechanical compatibility with industry-standard hand-soldering and reflow profiles.
Typical applications include consumer appliance controllers, low-end remote keyless entry transmitters, simple motor and relay drivers, LED lighting controllers, and battery-powered sensor interfaces. The low-voltage CMOS core makes the part appropriate for handheld and portable products where quiescent current and supply flexibility matter.
When designing with this part, remember OTP memory is one-time programmable; firmware bugs require board-level rework rather than a re-flash. Use the in-circuit serial programming (ICSP) interface for prototype bring-up and the device configuration bits to select oscillator mode, watchdog state, and code-protect options.
This page combines Microchip datasheet specifications, distributor stock and pricing, pin-compatible PIC16 family drop-in alternatives, and practical design notes - giving engineers more decision context than the manufacturer datasheet alone provides.
Drop-in-Alternativen für PIC16LC622T-04/SO – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LC622T-04/SO (gleiche Bauform und Footprint) – abweichend in Package, Core Architecture, Program Memory Size, Instruction Count, Maximum CPU Speed.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16C622T-04/SO
✅ Drop-In✓ Auf Lager
$1.88 / Stück
Datenblatt ansehen →PIC16LC622-04/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LC622T-04E/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16LC621T-04/SO
✅ Drop-In✓ Auf Lager
$1.95 / Stück
Datenblatt ansehen →PIC16F716-I/SO
✅ Drop-In✓ Auf Lager
$1.13 / Stück
Datenblatt ansehen →PIC16LC622T-04/SO Grenzwerte & elektrische Eigenschaften
| Core Processor | PIC |
| Core Size | 8-bit |
| Series | PIC16C |
| Program Memory Size | 3.5 KB (2K x 14) |
| Program Memory Type | OTP |
| RAM Size | 128 bytes |
| Maximum CPU Speed | 4 MHz |
| Supply Voltage Range | 2.5 V to 6.25 V |
| Number of I/O Pins | 13 |
| Number of I/O Ports | 12 |
| Gehäuse | SOIC-18 (SO-18), 0.300 inch, 7.50 mm width |
| Montageart | Surface Mount |
| Peripherals | Watchdog Timer, Power-On Reset, Brown-Out Detect |
| Stack Depth | 2 levels (hardware) |
| Instruction Set | 12-bit wide instructions, 8-bit data path |
| Addressing Modes | Direct, Indirect, Relative |
| Special Function Registers | 7 or 8 hardware registers |
| RoHS-Status | Compliant |
PIC16LC622T-04/SO Pin-Konfiguration
| Pin 1 | RA2 — Bidirectional I/O port A bit 2 |
| Pin 2 | RA3 — Bidirectional I/O port A bit 3 |
| Pin 3 | RA4 — Bidirectional I/O port A bit 4 / T0CKI |
| Pin 4 | MCLR — Master Clear (reset) input, active low |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0 — Bidirectional I/O port B bit 0 / INT |
| Pin 7 | RB1 — Bidirectional I/O port B bit 1 |
| Pin 8 | RB2 — Bidirectional I/O port B bit 2 |
| Pin 9 | RB3 — Bidirectional I/O port B bit 3 |
| Pin 10 | RB4 — Bidirectional I/O port B bit 4 |
| Pin 11 | RB5 — Bidirectional I/O port B bit 5 |
| Pin 12 | RB6 — Bidirectional I/O port B bit 6 / PGC (ICSP clock) |
| Pin 13 | RB7 — Bidirectional I/O port B bit 7 / PGD (ICSP data) |
| Pin 14 | VSS — Ground reference |
| Pin 15 | OSC2 — Oscillator output / CLKOUT |
| Pin 16 | OSC1 — Oscillator input / CLKIN |
| Pin 17 | RA0 — Bidirectional I/O port A bit 0 |
| Pin 18 | RA1 — Bidirectional I/O port A bit 1 |
Typische Anwendungen
PIC16LC622T-04/SO ist geeignet für 6 Anwendungs: Consumer Appliance Controllers, Remote Keyless Entry (RKE) Transmitters, Battery-Powered Sensor Interfaces, LED Lighting Pattern Controllers, Simple Relay and Solenoid Drivers, Industrial Control Logic Replacement.
Consumer Appliance Controllers
The PIC16LC622T-04/SO's 4 MHz PIC16C core, 13 I/O pins, and 2.5-6.25 V supply range fit low-cost consumer appliances such as coffee makers, toasters, and countertop kitchen devices. The 3.5 KB OTP memory holds state-machine control firmware, while the integrated watchdog timer and brown-out detect protect against firmware lockup and unstable mains-derived DC rails. Unlike modern Flash MCUs the OTP variant prevents unauthorized firmware read-back, a benefit for some sealed-product designs; engineer should budget for OTP tooling during firmware bring-up.
Empfohlen
Remote Keyless Entry (RKE) Transmitters
The PIC16LC622T-04/SO fits RKE keyfob transmitters because its low-voltage 2.5 V minimum operation aligns with single CR2032 coin-cell battery use, the 4 MHz PIC core executes button-debounce and rolling-code logic with low quiescent draw, and the 128 B RAM buffers rolling-code counters. Pin 13 I/O drives an external SAW or OOK transmitter IC. Its OTP memory protects rolling-code secrets from external read, a security advantage over Flash parts unless locked. Estimated battery life: 2-3 years at 10 transmissions/day.
Empfohlen
Battery-Powered Sensor Interfaces
The PIC16LC622T-04/SO suits battery-powered sensor interface nodes because the 2.5 V minimum VDD permits direct Li-coin-cell operation and the LC process node offers low sleep current relative to the non-LC PIC16C622. The 4 MHz instruction clock drives GPIO toggling and time-multiplexed sensor reads, while 128 B RAM buffers instantaneous sample data. Brown-out detect prevents sensor corruption at low battery. For designs needing analog input, a Flash PIC16F sibling with ADC is preferred.
Empfohlen
LED Lighting Pattern Controllers
The PIC16LC622T-04/SO drives low-channel-count decorative LED controllers because its 13 I/O pins can PWM-drive up to 13 LEDs or a multiplexed RGB matrix via external driver transistors. The 4 MHz instruction rate supports 8-bit PWM at a few hundred Hz refresh. Brown-out detect prevents inrush-induced flicker. Estimated: 13 channels x 20 mA per LED = 260 mA total, supplied by the MCU 5 V rail through discrete transistors; add proper base resistors.
Empfohlen
Simple Relay and Solenoid Drivers
The PIC16LC622T-04/SO drives relay and solenoid coils in industrial cabinets because its 13 I/O pins sink ULN2803 driver inputs directly, and the 4 MHz core handles timing patterns for pulse-relay and latching-solenoid sequences. The 2.5-6.25 V range supports 5 V and 3.3 V logic rails. OTP memory secures proprietary timing patterns. Each I/O typically sources/sinks 25 mA - sufficient for driver inputs; for higher current use external MOSFETs.
Empfohlen
Industrial Control Logic Replacement
The PIC16LC622T-04/SO replaces legacy 8051 or discrete logic in industrial controllers because its 3.5 KB OTP holds scan-loop ladder-logic replacements, and the PIC16C62x family has decades of industrial qualification. The 2-level hardware stack limits nesting but suits simple cyclic tasks. With 13 I/O and a brown-out detect, it directly replaces a logic-board of TTL gates at lower cost. For factory-floor designs with -40 C to +85 C ambient, choose the PIC16LC622T-04E/SO extended-temperature grade.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LC622T-04/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16C622T-04/SO | PIC16LC622-04/SO | PIC16LC622T-04E/SO | PIC16LC621T-04/SO | PIC16F716-I/SO |
|---|---|---|---|---|---|---|
| Package | SOIC-18 (SO-18), 7.50 mm | SOIC-18 (SO-18) - same | SOIC-18 (SO-18) - same | SOIC-18 (SO-18) - same | SOIC-18 (SO-18) - same | SOIC-18 (SO-18) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 1.75 KB OTP | 2 KB Flash |
| Max CPU Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Supply Voltage | 2.5 V to 6.25 V | 3.0 V to 6.0 V (non-LC) | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.0 V to 5.5 V |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 64 bytes | 128 bytes |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
| Memory Type | OTP | OTP | OTP | OTP | OTP | Flash (re-programmable) |
| Temperature Grade | 0 C to +70 C (commercial) | 0 C to +70 C | 0 C to +70 C | -40 C to +125 C (extended) | 0 C to +70 C | -40 C to +85 C (industrial) |
Wichtigste Unterscheidungsmerkmale
- Low-voltage LC process node (vs. PIC16C622T-04/SO)
- Field-reprogrammable Flash variant available (vs. PIC16F716-I/SO)
- Lower-memory variant in same family (vs. PIC16LC621T-04/SO)
Designhinweise
The PIC16LC622T-04/SO supply range is 2.5 V to 6.25 V. Use a 100 nF decoupling capacitor as close as physically possible to the VDD pin (pin 14), with a bulk 10 uF tantalum or aluminum capacitor at the regulator output. Brown-out detect (BOD) is enabled via configuration register; enable BOD for any mains-rail-supplied design to prevent firmware corruption on power dip.
OTP memory is one-time programmable. Unlike Flash MCUs you cannot re-program PIC16LC622T-04/SO in-circuit - a firmware bug in the final code means scrapping the part. Plan an emulator (PIC16C622 JW UV-erasable windowed CERDIP, or a current PIC16F equivalent) for firmware development, then burn the production OTP quantity once firmware is verified. The two-level hardware stack also limits call depth - keep nested subroutines to one level.
Use the standard SOIC-18 land pattern with 1.27 mm pin pitch and 0.65 mm land width. Keep the SOIC body clear of tall components to allow hand-rework and inspection. The ICSP pins PGC (RB6) and PGD (RB7) are multiplexed with general-purpose I/O - leave them accessible on the PCB for in-circuit programming header.
Compliance-Informationen
RoHS and lead-free compliant per Microchip product page. PIC16LC622 family is not AEC-Q100 qualified; for automotive choose AEC-Q100 qualified PIC16Fxxx alternatives. Halogen-free status not explicitly stated in retrieved data.
