PIC16F628T-04I/SS - 8-Bit Flash MCU, 4MHz, 3.5KB | Microchip
Teilenummer: PIC16F628T-04I/SS ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.29 | $1,29 |
| 10 | $1.16 | $11,60 |
| 100 | $1.03 | $103,00 |
| 500 | $0.92 | $460,00 |
| 1.000 | $0.83 | $830,00 |
PIC16F628T-04I/SS Übersicht
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and interrupt logic on one die. The PIC16F62X family uses Microchip's enhanced mid-range 8-bit RISC core with a 14-bit instruction word, sitting in the product hierarchy of microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F6XX flash series -> PIC16F62X. This category serves cost-sensitive and deterministic real-time control tasks such as appliance control, sensor interfacing, and battery-powered logic replacement.
Key features include an internal 4 MHz oscillator with calibration, dual analog comparators with programmable VREF, a hardware USART for asynchronous serial communication, Capture/Compare/PWM (CCP) modules, power-on reset (POR), brown-out detect (BOD), a watchdog timer with its own RC oscillator, programmable weak pull-ups on PORTB, and in-circuit serial programming (ICSP) via the multiplexed MCLR pin. These features minimize external component count for small-form-factor designs.
The architecture combines a Harvard bus, 35 single-cycle instructions, and direct/indirect addressing modes with peripheral-rich silicon. Compared to the older 16C/16F baseline, the PIC16F628A generation adds internal oscillator calibration and improved flash endurance, making it suitable for low-volume and field-upgradable designs.
Typical applications include appliance and white-goods control boards, sensor signal conditioning front-ends, LED lighting controllers, low-end motor drivers (via CCP/PWM), hobby and educational hardware (Arduino predecessor designs), battery chargers, and small industrial monitoring nodes where deterministic 8-bit performance is sufficient.
When designing with this device, budget the oscillator start-up time and BOD reset behavior in power-sequenced systems, and ensure decoupling on VDD/VSS is placed within 5 mm of the IC pins. For new designs, evaluate the pin-compatible PIC16F628A-I/SS or PIC16F88 upgrades for enhanced peripherals, otherwise the PIC16F628T-04I/SS remains a cost-optimized choice.
This page synthesizes distributor pricing, cross-reference candidates, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für PIC16F628T-04I/SS – 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 PIC16F628T-04I/SS (gleiche Bauform und Footprint) – abweichend in Package, Internal Oscillator, Maximum Clock Speed, RoHS Status, I/O Pins.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16F628-04I/SS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F628A-I/SS
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$1.41 / Stück
Datenblatt ansehen →PIC16F628-20I/SS
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC16F88-I/SS
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$3.08 / Stück
Datenblatt ansehen →PIC16F1828-I/SS
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PIC16F627A-I/SS
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$1.12 / Stück
Datenblatt ansehen →PIC16F628T-04I/SS Grenzwerte & elektrische Eigenschaften
| Family | PIC16F6XX |
| Core | 8-bit PIC RISC, 14-bit instruction word |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data RAM | 224 bytes |
| Data EEPROM | 128 bytes |
| Maximum Clock Speed | 4 MHz |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| Betriebstemperatur | -40C to +85C (industrial) |
| I/O Pins | 16 |
| Gehäuse | 20-pin SSOP (5.30 mm body width) |
| Montageart | Surface Mount |
| Analog Comparators | 2 with programmable VREF |
| Timers | Timer0 (8-bit), timer2 (8-bit), watchdog timer |
| Communication | USART (async serial), ICSP |
| RoHS-Status | Compliant |
PIC16F628T-04I/SS Pin-Konfiguration
| Pin 1 | RA7/OSC1 — PORTA bit 7 / oscillator input |
| Pin 2 | RA6/OSC2 — PORTA bit 6 / oscillator output |
| Pin 3 | RA5/MCLR/VPP — PORTA bit 5 / master clear / programming voltage |
| Pin 4 | RA4/AN4/TOCKI — PORTA bit 4 / analog input 4 / Timer0 clock |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / VREF positive |
| Pin 6 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / VREF negative |
| Pin 7 | RA1/AN1/C1OUT — PORTA bit 1 / analog input 1 / comparator 1 output |
| Pin 8 | RA0/AN0/C2OUT — PORTA bit 0 / analog input 0 / comparator 2 output |
| Pin 9 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 10 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 11 | RB5 — PORTB bit 5 |
| Pin 12 | RB4/PGM — PORTB bit 4 / LVP programming |
| Pin 13 | RB3/CCP1 — PORTB bit 3 / Capture Compare PWM 1 |
| Pin 14 | RB2 — PORTB bit 2 |
| Pin 15 | RB1/RX/DT — PORTB bit 1 / USART RX / data |
| Pin 16 | RB0/TX/CK — PORTB bit 0 / USART TX / clock |
| Pin 17 | VDD — Positive supply |
| Pin 18 | GND — Ground |
| Pin 19 | NC — Not connected (per datasheet) |
| Pin 20 | NC — Not connected (per datasheet) |
Typische Anwendungen
PIC16F628T-04I/SS ist geeignet für 6 Anwendungs: Appliance Control Boards, LED Lighting and Signage Controllers, Sensor Signal Conditioning Front-Ends, Battery-Powered Logic Replacement, Hobby and Educational Hardware, Small Industrial Monitoring Nodes.
Appliance Control Boards
The PIC16F628T-04I/SS is well suited for white-goods and small appliance controllers where deterministic 8-bit execution and high-current I/O matter more than raw compute. Its 16 mA source/sink capability on PORTB allows direct LED and relay drive without external buffers, and the on-chip comparators support zero-crossing detection for triac firing. The CCP module delivers PWM for motor-speed or heater regulation, and 3.5 KB of flash fits typical state-machine firmware. Industrial temperature grade (-40 to +85 C) supports under-cabinet and garage environments.
Empfohlen
LED Lighting and Signage Controllers
For LED lighting and signage, the PIC16F628T-04I/SS provides 16 high-drive I/O pins that can source/sink up to 25 mA per pin to multiplex LED matrices or drive discrete indicators directly. The CCP/PWM peripheral generates precise dimming waveforms, while the USART enables daisy-chained addressable displays or DMX-style control. Operating from 3.0-5.5 V, the device is compatible with both 3.3 V and 5 V LED-driver ecosystems, and its 4 MHz instruction rate keeps up with typical refresh-rate demands for static and slow-multiplexed signage.
Empfohlen
Sensor Signal Conditioning Front-Ends
In sensor-conditioning front-ends, the PIC16F628T-04I/SS uses its two on-chip analog comparators with programmable VREF to threshold thermistor, photodiode, or Hall-sensor signals without external op-amps. The programmable reference covers 0-5 V rails for direct threshold setting. Combined with USART telemetry, the MCU can wake on comparator interrupt, capture a reading, and transmit it to a host controller. Its low BOM count (no external crystal needed) and small SSOP-20 footprint suit miniaturized sensor modules.
Empfohlen
Battery-Powered Logic Replacement
The PIC16F628T-04I/SS replaces discrete CMOS logic in battery-powered devices by integrating timers, glue logic, and sequencing into a single chip. Brown-out detect (BOD) and power-on reset (POR) protect lithium cells from under-voltage damage, while sleep current in the microamp range extends runtime. Watchdog timer with its own RC oscillator prevents lockups in unattended deployments. The 3.0-5.5 V supply range aligns with single-cell Li-ion and 2x AA chemistries commonly used in remote controls, door sensors, and IoT edge nodes.
Empfohlen
Hobby and Educational Hardware
Educational and hobby platforms built around the PIC16F628T-04I/SS benefit from 8-bit simplicity, free MPLAB X IDE support, and the XC8 compiler toolchain. The 3.5 KB flash is enough for learning projects from blinking LEDs to interrupt-driven I/O, and the ICSP interface allows live re-flashing on a breadboard. PICkit 3/4/5 programmers support this device, and its 20-pin SSOP package breaks out all relevant pins on standard DIP adapters for student kits.
Empfohlen
Small Industrial Monitoring Nodes
In small industrial monitoring nodes, the PIC16F628T-04I/SS provides the analog comparators, timers, and USART needed to read switch contacts, drive indicator LEDs, and report status over serial links. Industrial temperature rating (-40 to +85 C) tolerates cabinet and outdoor enclosure conditions. The PIC16F62X watchdog with dedicated RC oscillator ensures recovery from EMI-induced lockups, while 128 bytes of EEPROM stores calibration constants and non-volatile configuration. SSOP-20 supports compact, densely-packed PLC-style I/O cards.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16F628T-04I/SS – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16F628-04I/SS | PIC16F628A-I/SS | PIC16F628-20I/SS | PIC16F88-I/SS | PIC16F1828-I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-20 (5.30 mm) | SSOP-20 (5.30 mm) - same | SSOP-20 (5.30 mm) - same | SSOP-20 (5.30 mm) - same | SSOP-20 (5.30 mm) - same | SSOP-20 (5.30 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Speed | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz | 32 MHz |
| Flash Program Memory | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 7 KB | 7 KB |
| Supply 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 | 1.8 V to 5.5 V |
| Internal Calibrated Oscillator | No | No | Yes (4 MHz) | No | Yes (8 MHz) | Yes (32 MHz HF + 32 kHz LF) |
| ADC | None (comparators only) | None (comparators only) | None (comparators only) | None (comparators only) | 10-bit ADC, 7 channels | 12-bit ADC, 8 channels |
Wichtigste Unterscheidungsmerkmale
- High-current I/O for direct LED/relay drive (vs. PIC16F88-I/SS)
- Industrial temperature grade as standard (vs. PIC16F627A-I/SS)
- Dual analog comparators with programmable VREF (vs. PIC16F1828-I/SS)
Designhinweise
Decouple VDD (pin 17) to ground with a 100 nF ceramic capacitor placed within 5 mm of the IC. Add a bulk 10 uF tantalum or aluminum polymer capacitor on the main 5 V rail to suppress motor inrush transients. The PIC16F62X BOD and POR are sensitive to VDD rise time - a soft-start ramp longer than the PWRT interval (typ. 72 ms) requires external reset supervision. Average active current is below 2 mA at 4 MHz, 5 V; sleep current is approximately 1 uA.
For designs without an external crystal, route the PIC16F628T-04I/SS in RC oscillator mode and add a 100 nF capacitor across OSC1/OSC2. Pin RA5/MCLR must be tied to VDD through a 10 kohm resistor for normal operation. If precise USART baud rates are required, use a 4.000 MHz crystal with 22 pF load capacitors; the '04' speed grade limits instruction rate to 4 MHz, so this part cannot use the higher 20 MHz crystal options.
Do not leave the MCLR/RA5 pin floating - an undriven MCLR may cause spurious resets and prevent ICSP programming. PORTB weak pull-ups are individually programmable but are disabled by default; enable them globally with the RBPU bit for switch-input reliability. The PIC16F628T-04I/SS lacks ADC - if your firmware requires analog conversion, choose the pin-compatible PIC16F88 instead. Lastly, ensure CCP1 is configured before using PWM on RB3, and confirm the comparator output mode is correct for the chosen CVREF polarity.
Compliance-Informationen
RoHS and REACH compliance per Microchip PIC16F628 family product page. Not AEC-Q100 qualified - industrial grade only.
