PIC16F570T-I/SS - 8-Bit MCU, 3KB Flash, 28-SSOP | Microchip
부품 번호: PIC16F570T-I/SS ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.76 | $276.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.2 | $2,200.00 |
PIC16F570T-I/SS 개요
A PIC (Peripheral Interface Controller) microcontroller is a compact RISC-based computing core with on-chip program memory, data RAM, and integrated peripherals such as timers, ADC, comparators, and communication blocks. PIC16F5xx family parts are baseline-to-midrange 8-bit MCUs in the wider PIC16 product line; within Microchip's taxonomy they sit below PIC16F1xxx enhanced parts and above legacy PIC12/PIC14 devices. The PIC16F570 uniquely adds two on-chip operational amplifiers and two analog comparators alongside a multi-channel ADC, making it a hybrid "analog+MCU" part targeted at sensor and signal-conditioning applications.
The PIC16F570 features dual op-amps with selectable reference input, two comparators with hysteresis, an ADC module, and 25 I/O pins in the 28-SSOP footprint. It supports in-circuit serial programming (ICSP) via two pins, eliminating the need for an external programmer socket. The device operates across 2.0 V to 5.5 V supply and includes selectable oscillator modes (internal 8 MHz, external RC, external crystal, and external clock), giving the designer flexibility between BOM cost and timing accuracy.
Typical applications include smoke detectors and other analog sensor front-ends, LED drivers with closed-loop current sensing, battery chargers with op-amp-based current/voltage loops, and industrial process controllers. The internal op-amps can directly condition thermocouple, bridge, or photodiode signals before ADC sampling, which simplifies PCB layout and lowers total BOM cost versus a discrete op-amp-plus-MCU design.
When designing with this part, evaluate whether the 2K x 12 program word width (3 KB) fits your application code; for C-compiled code targeting small state machines, the baseline PIC16 instruction set is unusually efficient, but code size must still be budgeted. Note the SSOP-28 package is pin-limited for designs needing many I/Os.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Engineers selecting a replacement should consider PIC16F570T-I/MV (28-pin UQFN, same die), PIC16F570-I/SS (industrial temperature, tube), and PIC16F570-E/SS (extended temperature) as same-family drop-in variants within Microchip.
드롭인 대체품: PIC16F570T-I/SS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16F570T-I/SS (동일 폼 팩터 및 풋프린트) — 차이점: Package, I/O Pins, ADC, Operating Temperature, Data EEPROM.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F570-I/SS
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F570-E/SS
✅ 드롭인✓ 재고 있음
$0.71 / 개
데이터시트 보기 →PIC16F570T-I/MV
✅ 드롭인✓ 재고 있음
$1.65 / 개
데이터시트 보기 →PIC16F570T-I/SSVAO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F527T-I/SS
✅ 드롭인✓ 재고 있음
$0.74 / 개
데이터시트 보기 →PIC16F570T-I/SS064
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
PIC16F54T-I/SS
✅ 드롭인✓ 재고 있음
$0.34 / 개
데이터시트 보기 →PIC16F570T-I/SS 최대 정격 & 전기적 특성
| Core Architecture | PIC16 8-bit RISC |
| Instruction Set | PIC16 baseline (35 instructions, 14-bit) |
| Program Memory (Flash) | 3 KB (2K x 14) |
| Data RAM | 132 bytes |
| Data EEPROM | 64 bytes |
| 최대 클록 주파수 | 20 MHz |
| Internal Oscillator | 8 MHz (factory calibrated) |
| Operating Voltage | 2.0 V to 5.5 V |
| I/O Pins | 25 (in SSOP-28) |
| ADC | 8-bit, 5 channels |
| Comparators | 2 |
| Operational Amplifiers | 2 (internal) |
| Timers | 1 x 8-bit, 1 x 16-bit |
| 패키지 | 28-SSOP (5.30 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40C to +85C (industrial, "I") |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| RoHS 상태 | Compliant |
| MSL 레벨 | 1 (unlimited floor life) |
| Packaging | Tape & Reel ("T" suffix) |
PIC16F570T-I/SS 핀 구성
| 핀 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| 핀 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| 핀 3 | RA2/AN2/VREF- — Digital I/O / Analog input channel 2 / ADC negative reference |
| 핀 4 | RA3/AN3/VREF+ — Digital I/O / Analog input channel 3 / ADC positive reference |
| 핀 5 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| 핀 6 | RA5 — Digital I/O |
| 핀 7 | OSC1/CLKIN — Crystal input / external clock input |
| 핀 8 | OSC2/CLKOUT — Crystal output / clock output |
| 핀 9 | RC0 — Digital I/O |
| 핀 10 | RC1 — Digital I/O |
| 핀 11 | RC2 — Digital I/O |
| 핀 12 | RC3 — Digital I/O |
| 핀 13 | RC4 — Digital I/O |
| 핀 14 | RC5 — Digital I/O |
| 핀 15 | RC6 — Digital I/O |
| 핀 16 | RC7 — Digital I/O |
| 핀 17 | RB0/INT — Digital I/O / External interrupt |
| 핀 18 | RB1 — Digital I/O |
| 핀 19 | RB2 — Digital I/O |
| 핀 20 | RB3 — Digital I/O |
| 핀 21 | RB4 — Digital I/O |
| 핀 22 | RB5 — Digital I/O |
| 핀 23 | RB6 — Digital I/O / ICSP clock |
| 핀 24 | RB7 — Digital I/O / ICSP data |
| 핀 25 | VDD — Positive supply voltage |
| 핀 26 | GND — Ground |
| 핀 27 | OP1OUT — Operational amplifier 1 output |
| 핀 28 | OP2OUT — Operational amplifier 2 output |
일반적인 애플리케이션
PIC16F570T-I/SS 적합 용도: 6 애플리케이션s: Smoke Detector Front-End, Battery Charger Controller, LED Driver with Closed-Loop Current Sensing, Thermocouple / Bridge Sensor Interface, Industrial Process Controller, Portable Handheld Meter.
Smoke Detector Front-End
The PIC16F570T-I/SS fits smoke detector front-ends because its on-chip dual op-amps directly condition the photo-diode current from the sensing chamber while the two comparators generate the alarm threshold trip points. The 3 KB Flash is sufficient for ionization/photoelectric detection algorithms plus self-test routines, and the 8-bit ADC samples the chamber reference voltage every 100 ms. Operating from a 9 V battery through a 3.3 V LDO, the industrial -40C to +85C range covers residential and commercial detector environments. Compared to a discrete MCU-plus-op-amp design, this part reduces BOM count by 2 ICs and simplifies PCB layout, an important consideration in ceiling-mounted detectors where height is constrained.
추천
Battery Charger Controller
The PIC16F570T-I/SS suits closed-loop battery charger designs because its dual op-amps implement the current-sense amplifier and voltage-feedback paths while the two comparators handle charge-termination detection. The internal 8 MHz oscillator and 2.0-5.5 V supply range let it run directly from a 1S Li-ion cell or from a 5 V USB rail. With 3 KB Flash, designers can implement CC-CV profiles for Li-ion, NiMH, or lead-acid chemistries in a single part. Compared to dedicated charger ICs, this MCU-based approach enables user-configurable charge algorithms and end-of-charge thresholds without external EEPROM.
추천
LED Driver with Closed-Loop Current Sensing
The PIC16F570T-I/SS is well-suited to LED driver control loops because its on-chip op-amps can amplify the high-side current-sense shunt voltage (typically 50-200 mV) to a level usable by the internal ADC, while PWM outputs drive a MOSFET switch. The 20 MHz instruction clock supports 10-bit PWM resolution for smooth dimming, and the 25 I/O pins leave headroom for keypad, button, or DMX512 interface integration. Industrial temperature grade suits commercial and architectural lighting installations. Compared to a discrete approach, the integrated op-amp+MCU combination eliminates two ICs and reduces PCB area.
추천
Thermocouple / Bridge Sensor Interface
The PIC16F570T-I/SS handles thermocouple or strain-gauge bridge conditioning because its two integrated op-amps can be configured as an instrumentation front-end (one for excitation buffer, one for signal gain), with the differential output fed into the 8-bit ADC. Cold-junction compensation is handled in firmware using an onboard temperature sensor. The 3 KB Flash accommodates linearization lookup tables for K-type or J-type thermocouples. Compared to discrete op-amp-ADC-MCU designs, integrating the analog front-end into the MCU saves PCB area and improves noise immunity by reducing analog trace lengths.
추천
Industrial Process Controller
The PIC16F570T-I/SS fits small-footprint industrial controllers because its dual comparators generate over-temperature or over-pressure alarms independently of CPU execution, while the op-amps buffer 4-20 mA current-loop sensors. The 25 I/O pins handle digital inputs (limit switches), digital outputs (relay drivers), and an RS-485 or UART link to a supervisory PLC. The -40C to +85C industrial temperature rating covers most factory-floor environments. Compared to PLC modules, this approach achieves similar functionality in a smaller PCB footprint at one-tenth the BOM cost.
추천
Portable Handheld Meter
The PIC16F570T-I/SS is suitable for portable handheld meters such as digital multimeters or environmental monitors because its 2.0-5.5 V supply range supports 2xAA / 2xAAA battery packs directly, while the 8 MHz internal oscillator eliminates crystal cost and the dual op-amps condition sensor signals. The 132 B RAM is sufficient for buffering measurement results before display update, and the 25 I/O pins drive LCD segments or LED bar graphs. Compared to low-power PIC12/PIC14 alternatives, the PIC16F570's analog integration reduces external component count - critical when PCB size is constrained by the handheld enclosure.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16F570T-I/SS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F570-I/SS | PIC16F570-E/SS | PIC16F527T-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Program Memory (Flash) | 3 KB (2K x 14) | 3 KB (2K x 14) | 3 KB (2K x 14) | 1.5 KB (-50%) |
| Data RAM | 132 bytes | 132 bytes | 132 bytes | 68 bytes (-49%) |
| Internal Op-Amps | 2 | 2 | 2 | 0 (none) |
| Comparators | 2 | 2 | 2 | 2 |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +125C (extended) | -40C to +85C |
| Packaging Form | Tape & Reel | Tube | Tube | Tape & Reel |
주요 차별점
- Integrated dual op-amps eliminate two external ICs (vs PIC16F527T-I/SS)
- Larger program memory than PIC16F527 sibling (vs PIC16F527T-I/SS)
- Same die available in Tube packaging for prototypes (vs PIC16F570T-I/MV)
설계 노트
The PIC16F570T-I/SS draws approximately 11 mA at 20 MHz and 5 V with all peripherals active; at 8 MHz internal oscillator the current drops to roughly 2 mA. For battery-powered designs, use Sleep mode (with on-chip op-amps powered down via the CMCON register) to drop current below 1 uA. The internal op-amps must be explicitly enabled in firmware before use; failure to do so leaves their inputs floating and increases ADC noise. Estimated: based on Microchip datasheet typical curves, not measured.
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 25) and a 10 uF bulk capacitor on the same supply trace within 10 mm. Keep analog traces (AN0-AN4, OP1OUT, OP2OUT) short and routed away from digital switching signals such as PWM or oscillator traces. A ground plane under the SSOP-28 footprint improves analog noise immunity by at least 6 dB per Microchip application note guidelines for mixed-signal MCUs.
The /SS suffix is the SSOP-28 package, not to be confused with the /SP (SPDIP-28) or /SO (SOIC-28) packages - these have different footprints and will not fit the same PCB. Also note that the PIC16F570's 2K x 14 program word memory means program addresses use word addressing (0x000-0x07FF) rather than byte addressing; programmers and compilers targeting PIC18 parts must adjust accordingly. The on-chip op-amps have limited output drive (~5 mA) and cannot directly drive low-impedance loads.
When using the internal op-amps to buffer high-impedance sensors, add a small feedback capacitor (10-100 pF) in parallel with the feedback resistor to prevent oscillation. The op-amp inputs are referenced to VDD and GND rails; for rail-to-rail input signal swings, verify the input common-mode range from the datasheet curves. Estimated: feedback capacitor sizing depends on sensor impedance and gain; 33 pF is a typical starting point for 100 kHz unity-gain bandwidth operation.
규정 준수 정보
RoHS and REACH compliant per Microchip product page. Standard part is not AEC-Q100 qualified; automotive applications should use PIC16F570T-I/SSVAO (VAO suffix denotes automotive qualification per Microchip VAO program).
