PIC16F688T-E/SL - 7KB Flash 8-bit MCU, SOIC-14 | Microchip
Référence : PIC16F688T-E/SL ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.15 | $2,15 |
| 10 | $1.95 | $19,50 |
| 100 | $1.78 | $178,00 |
| 500 | $1.62 | $810,00 |
| 1 000 | $1.45 | $1 450,00 |
PIC16F688T-E/SL Présentation
A PIC microcontroller (MCU) is a compact, single-chip computer integrating a CPU, program memory (Flash/ROM), data memory (RAM), and configurable peripherals on a single die. The PIC16 mid-range family uses a RISC-based 14-bit instruction set with 35 single-word instructions and a 200 ns instruction cycle at 20 MHz, making it well suited for control loops, sensor interfacing, and glue logic replacement. PIC16F devices sit within the broader taxonomy of microcontrollers -> 8-bit MCUs -> PIC microcontrollers -> semiconductor ICs, and they bridge the low-pin-count PIC10/12/16 family with the higher-pin PIC18 and dsPIC lines.
Key features of the PIC16F688 include 7KB Flash program memory, 256 bytes of RAM, 256 bytes of EEPROM, 12 digital I/O pins, an internal 8 MHz oscillator (with PLL options), a 10-bit ADC, comparators, capture/compare/PWM modules, and the nanoWatt technology sleep modes for battery-aware designs. The -E (extended) temperature grade is a critical selection criterion for industrial and harsh-environment deployments where the -I (industrial, -40C to +85C) variant is insufficient.
Architecturally, the PIC16F688T-E/SL is a Harvard-architecture RISC core with separate program Flash and data EEPROM buses, hardware stack, and deterministic interrupt handling. This makes timing analysis straightforward - an advantage over more complex ARM-based MCUs for hard-real-time control loops. The 20 MHz clock supports instruction cycles as fast as 200 ns, giving predictable latency for PWM-driven motor or lighting control applications.
Typical applications include LED lighting controllers, automotive body electronics subsystems, small appliance control boards, battery chargers, sensor signal conditioning, and consumer remote controls. The wide 2.0V-5.5V operating range also supports direct battery connection in single-cell Li-ion or 3-cell alkaline systems. Industrial control modules and HVAC sensor nodes commonly deploy the -E temperature variant. Compared with PIC18 or Cortex-M0 parts, the PIC16F688 wins on cost-per-pin and on simplicity when advanced peripherals are not required.
When designing with this device, verify that the 12 I/O and 8-channel ADC suffice for your application before committing; for designs needing more channels or USB, look up to PIC18F2550 or PIC16F1455. Also confirm the SOIC-14 footprint matches your PCB layout - the SL suffix denotes 14-SOIC (0.150 inch body) and is not interchangeable with TSSOP (ST suffix) without board rework.
This page synthesizes distributor pricing, drop-in SOIC-14 alternatives from the PIC16F family, and practical design notes that are not consolidated in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC16F688T-E/SL — 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 PIC16F688T-E/SL (même facteur de forme et même empreinte) — différant par Package, Core Architecture, Internal Oscillator, RoHS Status, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16F688-E/SL
✅ Remplacement direct✓ En stock
$1.05 / unité
Voir la fiche technique →PIC16F688T-I/SL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16F684T-I/SL
✅ Remplacement direct✓ En stock
$1.05 / unité
Voir la fiche technique →PIC16F684-E/SL
✅ Remplacement direct✓ En stock
$1.41 / unité
Voir la fiche technique →PIC16F676T-E/SL
✅ Remplacement direct✓ En stock
$0.8 / unité
Voir la fiche technique →PIC16F688T-E/SL Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC16 8-bit RISC (mid-range x14) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Clock | 20 MHz |
| Instruction Cycle | 200 ns at 20 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Operating Temperature (E variant) | -40C to +125C (extended) |
| I/O Pins | 12 |
| Boîtier | 14-SOIC (0.154 inch, 3.90 mm body, SL suffix) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant (lead-free) |
| Low-Power Feature | nanoWatt technology with multiple sleep modes |
Configuration des broches de PIC16F688T-E/SL
| Broche 1 | RA3/MCLR/Vpp — Digital I/O / Master Clear (reset) / Programming voltage input |
| Broche 2 | RA4/AN3 — Digital I/O / Analog input channel 3 |
| Broche 3 | RA5/AN4 — Digital I/O / Analog input channel 4 |
| Broche 4 | RA0/AN0/C1IN+ — Digital I/O / Analog input 0 / Comparator 1 positive input |
| Broche 5 | RA1/AN1/C1IN- — Digital I/O / Analog input 1 / Comparator 1 negative input |
| Broche 6 | RA2/AN2 — Digital I/O / Analog input 2 |
| Broche 7 | RC0 — Digital I/O port C bit 0 |
| Broche 8 | VSS — Ground reference |
| Broche 9 | OSC1/RC1 — External oscillator input / Digital I/O RC1 |
| Broche 10 | OSC2/RC2 — External oscillator output / Digital I/O RC2 |
| Broche 11 | RC3 — Digital I/O port C bit 3 |
| Broche 12 | RC4 — Digital I/O port C bit 4 |
| Broche 13 | RC5 — Digital I/O port C bit 5 |
| Broche 14 | VDD — Positive supply voltage (2.0V to 5.5V) |
Applications typiques
PIC16F688T-E/SL convient pour 7 applications: Industrial Sensor Signal Conditioning, LED Lighting Controllers, Automotive Body Electronics (Non-AEC-Q100), Small Appliance Control Boards, Battery-Powered IoT Sensor Nodes, HVAC and Building Automation Sensors, Consumer Remote Controls and HIDs.
Industrial Sensor Signal Conditioning
The PIC16F688T-E/SL fits industrial sensor nodes because of its 12 I/O count, 8-channel 10-bit ADC, and -40C to +125C extended temperature grade. The part runs from 2.0V to 5.5V, allowing direct battery or 24V-bus-derived power without extra regulators. Its nanoWatt sleep modes enable multi-year battery life in remote pressure, temperature, or flow sensors. The 7KB Flash holds substantial sensor-fusion firmware including linearization, calibration, and Modbus-style output protocols.
Recommandé
LED Lighting Controllers
LED dimming and color-mixing controllers benefit from the PIC16F688T-E/SL's 20 MHz clock (200 ns instruction cycle) and PWM/capture/compare modules. The 12 I/O can drive multiple LED channels plus DMX or 0-10V analog control inputs. Wide 2.0V-5.5V supply supports direct connection to 5V or 3.3V LED driver rails. The 7KB Flash is sufficient for color-space conversion libraries and DMX512 protocol stacks.
Recommandé
Automotive Body Electronics (Non-AEC-Q100)
The PIC16F688T-E/SL's -40C to +125C extended temperature grade is suitable for body-electronics applications like seat controllers, window modules, mirror actuators, and interior lighting where AEC-Q100 is not strictly mandated. The 12 I/O handles relay drivers, switch inputs, and LIN-bus-style UART comms. Its compact SOIC-14 footprint suits space-constrained automotive PCB designs and aftermarket accessories.
Recommandé
Small Appliance Control Boards
Coffee makers, blenders, washing machines, and kitchen hoods deploy the PIC16F688T-E/SL as the main control MCU for user-interface scanning, motor PWM, and sensor feedback. The 20 MHz clock and 200 ns instruction cycle are more than adequate for closed-loop control algorithms. The nanoWatt sleep modes reduce standby power to meet energy-star ratings. The 7KB Flash supports user-interface state machines, fault diagnostics, and OTA-style field updates.
Recommandé
Battery-Powered IoT Sensor Nodes
Battery-powered wireless sensor endpoints leverage the PIC16F688T-E/SL's nanoWatt technology, which offers multiple sleep modes drawing microamps or less. The 2.0V-5.5V operating range supports direct connection to single-cell Li-ion, 2x AA, or coin cells. Combined with a sub-GHz or BLE radio, the part builds sensor nodes that last years on a single battery. The 256-byte EEPROM is sufficient for storing calibration constants, network IDs, and rolling sensor logs.
Recommandé
HVAC and Building Automation Sensors
Thermostats, CO2 sensors, and occupancy detectors use the PIC16F688T-E/SL because of its extended temperature grade, low power consumption, and ample I/O for relays, keypads, and communication interfaces. The 10-bit ADC reads thermistor, humidity, and gas-sensor analog outputs. The 7KB Flash holds BACnet, Modbus, or proprietary HVAC protocol stacks. The SOIC-14 footprint is hand-solderable for low-volume building automation product runs.
Recommandé
Consumer Remote Controls and HIDs
TV remotes, garage door openers, and key fobs benefit from the PIC16F688T-E/SL's low power, small package, and sufficient code space for IR/RF protocol stacks. The 20 MHz clock drives accurate PWM carrier generation for IR transmission. The wide supply range supports direct connection to coin cells. Combined with a sub-GHz transmitter or IR LED driver, the part enables long-battery-life consumer HIDs at low BOM cost.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16F688T-E/SL — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16F688-E/SL | PIC16F688T-I/SL | PIC16F684T-I/SL | PIC16F684-E/SL | PIC16F676T-E/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Program Memory (Flash) | 7 KB | 7 KB | 7 KB | 3.5 KB (-50%) | 3.5 KB (-50%) | 1.75 KB (-75%) |
| Data RAM | 256 bytes | 256 bytes | 256 bytes | 128 bytes (-50%) | 128 bytes (-50%) | 64 bytes (-75%) |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 128 bytes (-50%) |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| Operating Temperature | -40C to +125C (-E) | -40C to +125C | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +125C | -40C to +125C |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
Principaux différenciateurs
- Highest memory in PIC16F68x 14-SOIC family (vs PIC16F684T-I/SL)
- Extended temperature grade for harsh environments (vs PIC16F688T-I/SL)
- PIC16 mid-range architecture simplicity over Cortex-M0 (vs Cortex-M0 MCUs)
Notes de conception
Estimated: at 20 MHz and 5V supply, the PIC16F688T-E/SL typically draws 5-8 mA active current; sleep current falls to microamps with nanoWatt sleep modes. For battery-powered designs, leverage the internal 8 MHz oscillator instead of a crystal to eliminate the 1-3 mA oscillator current overhead. Add a 100 nF decoupling capacitor directly across VDD (pin 14) and VSS (pin 8) within 3 mm of the IC pins.
Keep the ICSP/ICD programming pins (RA3/MCLR, RA4, RA5, RA0, RA1) accessible on test points or a 6-pin header if in-circuit programming or debugging is required. Route the ICSPDAT/ICSPCLK traces short to avoid signal-integrity issues. Ensure pin 1 (MCLR) has a 10 kohm pull-up to VDD and a 100 nF cap to ground for proper reset, unless the internal MCLR is enabled via configuration bits.
Common pitfalls with PIC16F688T-E/SL: (a) configuring RA2 as a digital output without disabling the analog channel on the ANSEL register - analog mode holds outputs in a tri-state; (b) using the internal oscillator at full 20 MHz without setting OSCCON correctly - many code samples default to 4 MHz; (c) forgetting to clear the GIE bit before ISR setup, causing spurious interrupts at startup; (d) using RA3 as an output - RA3 is open-drain only and requires an external pull-up.
The PIC16F688T-E/SL's thermal dissipation is dominated by I/O pin current, not core logic. At 25C ambient with 12 I/O each sourcing 10 mA (120 mA total), the SOIC-14 package with theta_JA around 80-100 C/W stays well within the -40C to +125C operating range. For industrial -40C cold-start designs, verify that brown-out reset (BOR) is enabled in configuration bits so the MCU restarts cleanly as VDD rises.
Informations de conformité
RoHS-compliant per Microchip product page. Not AEC-Q100 qualified - for AEC-Q100 PIC16 SOIC-14 alternatives, look to PIC16F15325 or PIC16F18025 automotive-grade parts.
