PIC16F819T-E/SS - 20MHz 8-Bit Flash MCU, 3.5KB | Microchip
부품 번호: PIC16F819T-E/SS ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.95 | $29.50 |
| 100 | $2.65 | $265.00 |
| 500 | $2.4 | $1,200.00 |
| 1,000 | $2.15 | $2,150.00 |
PIC16F819T-E/SS 개요
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one die. The PIC16F819 belongs to a broader taxonomy of microcontrollers -> 8-bit MCUs -> RISC microcontrollers -> embedded controllers -> semiconductors. The RISC architecture (Reduced Instruction Set Computer) uses only 35 single-word instructions, enabling fast deterministic execution suited for embedded control. The 'F' in PIC16F819 indicates Flash program memory, which can be electrically erased and reprogrammed thousands of times - ideal for field-updateable firmware and low-NRE prototyping compared to one-time-programmable (OTP) or ROM-only devices.
Key features include nanoWatt power management for low-power sleep operation, 16 I/O pins with high-current source/sink capability, an internal 8 MHz oscillator (reducing external component count), an Analog-to-Digital (A/D) converter, and synchronous serial port (SSP) support for SPI and I2C. The instruction set is upwards compatible with PIC16C7x, PIC16C62xA, PIC16C5X, and PIC12CXXX devices, allowing code portability and migration across hundreds of legacy PIC designs with minimal rewrite.
The 20 MHz clock rate delivers 5 MIPS (million instructions per second) of throughput, providing ample headroom for sensor polling, motor control loops, and human-machine interface (HMI) tasks. The 4-5.5V supply voltage range is compatible with both 5V regulated rails and battery-powered systems, while nanoWatt Technology enables standby currents measured in microamps - making the part suitable for battery-backed or energy-harvesting applications.
Typical applications include industrial sensor interface modules, automotive body controllers, white-goods appliance control boards (washing machines, coffee makers, microwave ovens), and consumer remote controls. The wide -40C to +125C extended temperature grade makes it appropriate for under-hood automotive and outdoor industrial deployments where commercial-grade parts would otherwise be inadequate.
When designing in, designers should evaluate power budgeting carefully because 5V operation and 20 MHz oscillation produce meaningful quiescent current; for low-duty-cycle applications, leverage the nanoWatt sleep modes. The 20-SSOP footprint is compatible with the PIC16F818 (a smaller-memory sibling) and the larger PIC16F87x family, enabling footprint-compatible scaling.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC16 family, and practical design notes that complement the manufacturer's datasheet.
드롭인 대체품: PIC16F819T-E/SS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16F819T-E/SS (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Core Architecture, Package, Internal Oscillator, Program Memory (Flash).
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F818T-I/SS
✅ 드롭인✓ 재고 있음
$1.92 / 개
데이터시트 보기 →PIC16F818-I/SS
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.02 / 개
데이터시트 보기 →PIC16F819-I/SS
✅ 드롭인✓ 재고 있음
$2.11 / 개
데이터시트 보기 →PIC16F88-I/SS
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.08 / 개
데이터시트 보기 →PIC16F819-I/SO
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.95 / 개
데이터시트 보기 →PIC16F819T-E/SS 최대 정격 & 전기적 특성
| Family | PIC16F |
| Core Architecture | 8-bit RISC |
| CPU Speed | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data Memory (RAM) | 256 bytes |
| Data EEPROM | 256 bytes |
| I/O Pins | 16 |
| Supply Voltage Range | 4.0 V to 5.5 V |
| Internal Oscillator | 8 MHz |
| 동작 온도 | -40C to +125C |
| Package Type | SSOP-20 (0.209 inch, 5.30 mm body) |
| 실장 유형 | Surface Mount |
| Packaging Format | Tape and Reel |
| 핀 수 | 20 |
| Technology Family | nanoWatt (low-power) |
| Lifecycle Stage | ACTIVE |
PIC16F819T-E/SS 핀 구성
| 핀 1 | RA2/AN2/VREF- — PORTA bit 2 (bidirectional I/O), A/D channel 2, A/D negative reference |
| 핀 2 | RA3/AN3/VREF+ — PORTA bit 3 (bidirectional I/O), A/D channel 3, A/D positive reference |
| 핀 3 | RA4/AN4/T0CKI — PORTA bit 4 (bidirectional I/O, open-drain), A/D channel 4, Timer0 clock input |
| 핀 4 | RA5/AN5/SS — PORTA bit 5 (bidirectional I/O), A/D channel 5, SSP slave select |
| 핀 5 | VSS — Ground reference |
| 핀 6 | RA0/AN0 — PORTA bit 0 (bidirectional I/O), A/D channel 0 |
| 핀 7 | RA1/AN1 — PORTA bit 1 (bidirectional I/O), A/D channel 1 |
| 핀 8 | OSC2/CLKOUT/RA6 — Crystal/Resonator connection, clock output, or PORTA bit 6 |
| 핀 9 | OSC1/CLKIN/RA7 — Crystal/Resonator connection, external clock input, or PORTA bit 7 |
| 핀 10 | MCLR/VPP — Master clear (reset, active low) input / programming voltage input |
| 핀 11 | VDD — Positive supply voltage (4.0V to 5.5V) |
| 핀 12 | VSS — Ground reference |
| 핀 13 | RB0/INT — PORTB bit 0 (bidirectional I/O), external interrupt input |
| 핀 14 | RB1 — PORTB bit 1 (bidirectional I/O) |
| 핀 15 | RB2 — PORTB bit 2 (bidirectional I/O) |
| 핀 16 | RB3/PGM — PORTB bit 3 (bidirectional I/O), LVP programming |
| 핀 17 | RB4 — PORTB bit 4 (bidirectional I/O) |
| 핀 18 | RB5 — PORTB bit 5 (bidirectional I/O) |
| 핀 19 | RB6/PGC — PORTB bit 6 (bidirectional I/O), ICSP clock |
| 핀 20 | RB7/PGD — PORTB bit 7 (bidirectional I/O), ICSP data |
일반적인 애플리케이션
PIC16F819T-E/SS 적합 용도: 6 애플리케이션s: Industrial Sensor Interface Module, White Goods Appliance Control, Automotive Body Electronics, Consumer Remote Control, Hobby Robotics and Motor Control, Battery Charging and Power Management Controller.
Industrial Sensor Interface Module
The PIC16F819T-E/SS fits industrial sensor interface designs because its 16 digital I/O pins handle multiple digital inputs (limit switches, encoders, photo-eyes) while 5 of those pins also double as A/D inputs for analog transducers (4-20 mA loop, thermistor, RTD, potentiometer). The 20 MHz speed delivers 200 ns instruction execution, sufficient for high-speed counting up to several tens of kHz and PID loop rates. The -40C to +125C extended temperature range supports factory-floor enclosures near motors and heaters. nanoWatt Technology lets the MCU sleep between sensor samples with currents below 1 uA, critical for loop-powered 4-20 mA field instruments. Per Microchip's datasheet, the SSP peripheral supports SPI and I2C for digital sensors (accelerometer, temperature IC), reducing BOM cost versus a dedicated transceiver.
추천
White Goods Appliance Control
The PIC16F819T-E/SS suits white-goods control boards (washing machines, dishwashers, microwave ovens, refrigerators) because its 35-instruction RISC core is easy to program in assembly, supporting fast development of timing-critical motor-control state machines. The 16 I/O pins drive relays, triacs, LEDs, keypad scan matrices, and 7-segment displays. The 256-byte data EEPROM stores user settings (selected cycle, delay-start timer) across power cycles. The 8 MHz internal oscillator eliminates an external crystal, lowering BOM cost - critical in cost-sensitive consumer appliances. The 4-5.5V supply tolerates 5V rails directly. Extended -40C to +125C operation supports under-cabinet or garage appliance installations.
추천
Automotive Body Electronics
The PIC16F819T-E/SS is appropriate for non-safety automotive body-electronics modules (interior lighting, seat controllers, mirror adjusters, HVAC flaps) where -40C to +125C extended-grade temperature operation handles under-dash thermal stress. The 5 MIPS throughput drives stepper motors for HVAC blend-door positioning with adequate control-loop bandwidth. The 16 I/O lines interface to LIN slave transceivers, button matrices, and LED drivers. Note: this part is NOT AEC-Q100 qualified, so for safety-critical automotive ECUs (airbag, ABS, engine) Microchip's PIC16F1xxx enhanced family or dsPIC33 is recommended. Designers targeting automotive should consult Microchip's automotive portfolio for AEC-Q100 qualified 8-bit alternatives.
추천
Consumer Remote Control
The PIC16F819T-E/SS powers consumer IR remote controls because its nanoWatt Technology enables >1 year battery life on 2x AAA cells when the MCU sleeps between button presses. The 20 MHz clock generates accurate 38 kHz or 40 kHz carrier frequencies for IR transmission with minimal drift. Six Port A pins plus eight Port B pins drive up to 14 buttons in a scanned matrix or direct-connect layout. The 256-byte EEPROM stores protocol codes and pairing information. The internal 8 MHz oscillator eliminates external components, minimizing PCB area and BOM. Per Microchip's nanoWatt datasheet, the part's typical sleep current below 1 uA makes it ideal for always-on IR receivers in standby mode.
추천
Hobby Robotics and Motor Control
The PIC16F819T-E/SS supports hobby-grade robotics and small DC motor control applications, including 4-channel PWM (via CCP peripheral) for servo or brushed-DC motor speeds, plus 16 I/O for sensors, encoders, and indicator LEDs. The 200 ns instruction time handles software-implemented encoders, motor-tach feedback loops, and serial communication at 19.2 kbaud without jitter. The 256-byte RAM accommodates PID state variables and communication buffers for small robot arm controllers. The SSOP-20 surface mount footprint is appropriate for compact PCB designs where SOIC would be too large. nanoWatt Technology gives battery-powered robots hours of runtime between charges.
추천
Battery Charging and Power Management Controller
The PIC16F819T-E/SS functions as a state-machine controller in low-to-medium-current battery charger designs (NiMH, lead-acid, single-cell LiFePO4) where its 8-bit CPU measures voltage, current, and temperature through its A/D converter, and drives charge/discharge FETs via Port A and B outputs. The 4.0-5.5V supply range accommodates 5V wall adapters directly. The 256-byte data EEPROM records charge-cycle history and battery health parameters that persist across power cycles. The 8 MHz internal oscillator keeps BOM cost low while the 35-instruction RISC core enables deterministic battery-monitoring firmware. The -40C to +125C range supports outdoor solar charging systems.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16F819T-E/SS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F818T-I/SS | PIC16F818-I/SS | PIC16F819-I/SS | PIC16F88-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Flash Memory | 3.5 KB (2K x 14) | 1.75 KB (-50%) | 1.75 KB (-50%) | 3.5 KB (same) | 7 KB (+100%) |
| RAM | 256 bytes | 128 bytes (-50%) | 128 bytes (-50%) | 256 bytes (same) | 368 bytes (+44%) |
| CPU Speed | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS | 20 MHz / 5 MIPS |
| EEPROM | 256 bytes | 128 bytes (-50%) | 128 bytes (-50%) | 256 bytes (same) | 256 bytes (same) |
| I/O Pins | 16 | 16 | 16 | 16 | 16 |
| A/D Converter | 10-bit (5 channels min) | 10-bit (5 channels) | 10-bit (5 channels) | 10-bit (5 channels min) | 10-bit (7 channels) |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
주요 차별점
- Larger Flash and RAM than PIC16F818 sibling (vs PIC16F818T-I/SS)
- Extended temperature grade for harsh environments (vs PIC16F819-I/SS)
- Tape-and-reel packaging for automated assembly (vs PIC16F819-I/SS (tube))
설계 노트
The PIC16F819T-E/SS operates from 4.0V to 5.5V; an internal 8 MHz oscillator reduces BOM by eliminating an external crystal. During nanoWatt sleep modes the part consumes less than 1 uA typical per Microchip's datasheet, enabling battery-backed or energy-harvesting designs. Bulk-decouple VDD with 100 nF ceramic plus 10 uF electrolytic; place the 100 nF cap within 5 mm of the VDD pin (pin 11) to suppress switching noise. The voltage reference pins VREF-/VREF+ (shares with RA2/RA3) must each be decoupled with 100 nF to VSS if used in external-reference A/D modes - driving analog reference currents without local bypass will degrade A/D accuracy by 1-2 LSBs.
The 20-SSOP package has 0.65 mm pin pitch with exposed thermal pad; route signal traces away from the crystal area to minimize clock crosstalk on sensitive analog lines. Per Microchip's analog design guidelines, keep analog signal traces (RA0-RA5 in A/D mode) short and isolated from digital switching traces, with a ground guard ring around sensitive analog nets to avoid digital-induced noise. MCLR/VPP (pin 10) should pull up to VDD via a 10 kohm resistor and a 100 nF cap to ground - this is required for in-circuit serial programming and reliable reset behavior.
Estimated: Total power dissipation at 5V, 20 MHz, and 100% CPU activity is approximately 13 mA; verify regulator headroom for full operation. A common pitfall is leaving the MCLR pin floating - this causes spurious resets and unreliable operation. Another pitfall: configuring Port B pull-ups only on some PORTB pins can produce asymmetric rise times; enable RBPU=0 and select internal pull-ups globally with WRPUB register if needed. Watch for EEPROM endurance - the spec is 1M erase/write cycles minimum per cell, so for high-write applications (data logging) implement wear-leveling in firmware.
Place the ICSP programming header (PGD on pin 20, PGC on pin 19, MCLR on pin 10) at the PCB edge or in an accessible test region to allow factory or field programming without removing the chip. Per Microchip's ICSP recommendations, no series resistors or capacitors are allowed on PGD/PGC; if isolation is required, use a buffer or routing layer instead. Maintain a continuous VSS guard under the SSOP-20 thermal pad and connect it to the ground plane at multiple vias to provide thermal sinking and EMI shielding - per Microchip's thermal design notes.
규정 준수 정보
Per Microchip's environmental compliance statements, mid-range PIC16F family products are RoHS and REACH compliant and lead-free. The part is not AEC-Q100 qualified; for AEC-Q100 requirements use Microchip's automotive-grade PIC16F1xxx or dsPIC33 family. Conflict-minerals compliance per Microchip's CMRT declarations on file.
