PIC16F570-E/SS - 8-Bit MCU, 3KB Flash, 28-SSOP | Microchip
MPN: PIC16F570-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.36 | $1.36 |
| 10 | $1.23 | $12.30 |
| 100 | $1.08 | $108.00 |
| 500 | $0.94 | $470.00 |
| 1,000 | $0.82 | $820.00 |
| 3,000 | $0.71 | $2,130.00 |
PIC16F570-E/SS Overview
An 8-bit microcontroller (MCU) is a microprocessor optimized for embedded control, integrating CPU, RAM, program memory, and peripherals (ADC, timers, communication ports) on a single chip. The PIC16F570 belongs to Microchip's enhanced baseline family - positioned below mid-range PIC16 devices - and is part of the broader 8-bit PIC microcontroller hierarchy: enhanced baseline -> mid-range -> enhanced mid-range PIC. This taxonomy matters for engineers selecting migration paths because higher-tier devices add instructions and peripherals while keeping pin compatibility within the same package.
Key features that distinguish the PIC16F570 include an integrated dual op-amp stage (configurable for inverting, non-inverting, or comparator modes), two dedicated comparators with programmable reference, an 11-channel 8-bit ADC, and 64 bytes of internal data EEPROM emulation. The device operates from 2.0V to 5.5V, runs up to 20MHz (200 ns instruction cycle), and offers low-power operation with several sleep/idle modes for battery-driven applications. The Enhanced Baseline core delivers 33 single-word instructions with 12-bit-wide opcodes.
Architecture-wise, the PIC16F570 uses a Harvard RISC design with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. The integrated analog peripherals are powered by a dedicated internal bandgap reference and can operate independently of the CPU, making the device suitable for always-on sensor monitoring. The dual op-amps can be configured as programmable gain stages feeding the ADC, reducing the bill of materials in closed-loop control loops.
Typical applications include sealed-lead battery chargers, uninterruptible power supplies, lighting ballast control, security sensor front ends, motor control pre-drivers, and consumer appliances where integrated analog reduces PCB area. The wide operating temperature range (-40C to +125C, indicated by the -E suffix) supports industrial and automotive underhood environments.
When designing with this device, ensure the 28-SSOP exposed-thermal land is soldered to a copper pour for improved heat dissipation and mechanical reliability. The device is in-system programmable via ICSP and supports self-write to its own Flash for bootloader applications. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F570-E/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F570-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F570-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F570-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F570-E/SP
✅ Drop-In✓ In Stock
$1.02 / Unit
View Datasheet →PIC16F570T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F57-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F570-E/SS Maximum Ratings & Electrical Characteristics
| Core | PIC16 Enhanced Baseline 8-bit RISC |
| Instruction Set Width | 12 bits |
| Program Memory (Flash) | 3 KB (2K x 12) |
| RAM | 64 bytes |
| Data EEPROM (Emulated) | 64 bytes |
| Maximum CPU Frequency | 20 MHz |
| Instruction Cycle | 200 ns |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Operating Temperature | -40C to +125C (Extended, -E suffix) |
| ADC | 11 channels, 8-bit resolution |
| Analog Comparators | 2 |
| Operational Amplifiers | 2 (integrated, configurable) |
| I/O Pins | 25 (bidirectional) |
| Package | 28-SSOP (5.30 mm body, 0.65 mm pitch) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited floor life at <30C/85% RH) |
| RoHS Status | Compliant |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
PIC16F570-E/SS Pin Configuration
| Pin 1 | RA0/AN0 — PORTA bit 0 / ADC input channel 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / ADC input channel 1 |
| Pin 3 | RA2/AN2 — PORTA bit 2 / ADC input channel 2 |
| Pin 4 | RA3/AN3 — PORTA bit 3 / ADC input channel 3 |
| Pin 5 | RA4/AN4 — PORTA bit 4 / ADC input channel 4 |
| Pin 6 | RA5/AN5 — PORTA bit 5 / ADC input channel 5 |
| Pin 7 | VDD — Positive supply voltage (2.0V-5.5V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKIN — Oscillator input / external clock input |
| Pin 10 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 11 | RC0 — PORTC bit 0 |
| Pin 12 | RC1 — PORTC bit 1 |
| Pin 13 | RC2 — PORTC bit 2 |
| Pin 14 | RC3 — PORTC bit 3 |
| Pin 15 | RC4 — PORTC bit 4 |
| Pin 16 | RC5 — PORTC bit 5 |
| Pin 17 | RC6 — PORTC bit 6 |
| Pin 18 | RC7 — PORTC bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (2.0V-5.5V) |
| Pin 21 | RB0/AN6 — PORTB bit 0 / ADC input channel 6 |
| Pin 22 | RB1/AN7 — PORTB bit 1 / ADC input channel 7 |
| Pin 23 | RB2/AN8 — PORTB bit 2 / ADC input channel 8 |
| Pin 24 | RB3/AN9 — PORTB bit 3 / ADC input channel 9 |
| Pin 25 | RB4/AN10 — PORTB bit 4 / ADC input channel 10 |
| Pin 26 | RB5 — PORTB bit 5 |
| Pin 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 28 | RB7/PGD — PORTB bit 7 / ICSP data |
Typical Applications
PIC16F570-E/SS is suitable for 6 applications: Sealed Lead-Acid Battery Charger, Lighting Ballast Control, Security / PIR Sensor Front End, Industrial Sensor Signal Conditioning, Motor Control Pre-Driver, Smart Appliance User Interface Controller.
Sealed Lead-Acid Battery Charger
The PIC16F570-E/SS fits SLA battery charger designs because its integrated dual op-amps can sense charge current via a low-side shunt resistor and regulate a PWM-driven buck charger without external analog ICs. With 11-channel 8-bit ADC and 25 GPIO, the same MCU samples battery voltage, charge current, and NTC temperature while driving a MOSFET half-bridge. The wide 2.0V to 5.5V VDD range supports direct sensing of a 6V (3-cell) SLA stack; unlike a discrete op-amp + MCU solution it eliminates two external amplifiers and their offset drift.
Recommended
Lighting Ballast Control
The PIC16F570-E/SS serves as the control MCU for fluorescent and HID lighting ballasts because its two integrated analog comparators can detect zero-crossing of the lamp current directly from the resonant tank, eliminating external zero-cross detectors. The 20MHz CPU clock delivers 5 MIPS, sufficient to regulate lamp power via PFC + lamp-current control loops while servicing a UART or DALI interface. The -40C to +125C extended temperature grade supports the hot ballast enclosure; unlike a software-PWM-only solution it offers deterministic analog response.
Recommended
Security / PIR Sensor Front End
The PIC16F570-E/SS integrates the PIR sensor signal-chain front end on a single die: the integrated op-amps provide the high-gain AC amplifier (typically 10k-100k) for the PIR element, the two comparators generate motion-trigger pulses, and the 11-channel ADC calibrates against ambient temperature drift. This replaces a typical 4-IC solution (dual op-amp + comparator + MCU) with one part, reducing PCB area and BOM cost. The -40C to +125C range covers outdoor and attic-mounted PIR detectors.
Recommended
Industrial Sensor Signal Conditioning
The PIC16F570-E/SS conditions bridge-type sensors (load cell, strain gauge, pressure transducer) by using its integrated op-amps as an instrumentation front-end driving the 11-channel 8-bit ADC. With 3KB Flash and 64 bytes RAM, it can run calibration coefficients, linearization, and a UART/I2C output to a host controller. The extended -40C to +125C range supports factory-floor installations; unlike a discrete op-amp + ADC + MCU design it eliminates two chips and their temperature drift mismatch.
Recommended
Motor Control Pre-Driver
The PIC16F570-E/SS pre-drives small brushed DC and stepper motors using its dual comparators for back-EMF sensing and 8-bit ADC for current shunt monitoring, with GPIO toggling a discrete H-bridge. The 20MHz core runs trapezoidal commutation at several kHz while leaving headroom for UART diagnostics. The -E grade survives the underhood thermal environment; unlike a pure digital MCU it samples back-EMF without external comparators.
Recommended
Smart Appliance User Interface Controller
The PIC16F570-E/SS reads capacitive or resistive touch keys (via ADC), drives LED bar indicators (via GPIO + PWM), and communicates with the main appliance controller over UART, all on a single 28-SSOP device. The 11-channel ADC scans up to 11 touch electrodes directly; the 64-byte RAM stores button debounce state; the 3KB Flash holds the UI state machine. Unlike a dedicated touch controller + MCU combination it cuts BOM cost in coffee machines, microwaves, and washing machines.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F570-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F570-I/SS | PIC16F570-E/SO | PIC16F570-I/SO | PIC16F570-E/SP | PIC16F570T-E/SS | PIC16F57-I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SOIC - same die, larger footprint | 28-SOIC - same die, larger footprint | 28-SPDIP - through-hole | 28-SSOP - same | 28-SSOP - same |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Extended (-40C to +125C) | Industrial (-40C to +85C) |
| Program Memory | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 2 KB OTP/ROM - 33% less, no self-write |
| Integrated Op-Amps | 2 | 2 | 2 | 2 | 2 | 2 | 0 (no integrated op-amps) |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Self-Write | Yes | Yes | Yes | Yes | Yes | Yes | No (OTP/ROM) |
Key Differentiators
- Integrated dual op-amps + dual comparators + 11-channel ADC on one die (vs PIC16F57-I/SS)
- Extended -40C to +125C temperature grade in SSOP package (vs PIC16F570-I/SS)
- Smaller footprint than SOIC variant while keeping full -E temperature grade (vs PIC16F570-E/SO)
Design Notes
The PIC16F570-E/SS operates from 2.0V to 5.5V VDD and includes brown-out detection that should be configured to the application's minimum rail voltage via the BOREN/FBOREN configuration bits. Decouple VDD with a 100nF ceramic capacitor placed within 5mm of pins 7 and 20; add a 10uF bulk capacitor if the supply has high source impedance. The two VDD/VSS pin pairs must both be connected for proper internal substrate biasing - leaving one pair floating can cause erratic ADC readings.
The 28-SSOP package has a 0.65mm pitch and 5.30mm body width; use a 4-layer PCB with continuous ground plane under the device to minimize digital switching noise coupling into the integrated op-amps and ADC. Route the analog inputs (RA0-RA5, RB0-RB4) away from the ICSP lines (RB6/RB7) and oscillator pins (OSC1/OSC2). Place the oscillator crystal within 5mm of pins 9 and 10 with guard traces to ground; long oscillator traces pick up EMI that aliases into ADC readings.
The PIC16F570 is a baseline PIC16 device - it does NOT have the 14-bit instruction set or peripheral library of mid-range PIC16F1xxx devices; do not import mid-range header files. The MCLR pin (pin 1 on some PIC16F570 packages, shared with RA5 on this SSOP variant) must be pulled high via a 10k resistor for normal operation; leaving it floating causes erratic resets. Configuration bits must be set explicitly in source code: oscillator selection (HS/RC/INT), WDT enable, BOR voltage threshold, and code-protect.
The integrated op-amps have limited GBW (~3MHz typical) and slew rate; do not attempt to amplify signals above 100kHz - the op-amp output will distort and inject harmonics into adjacent ADC channels. Add a 100pF-1nF feedback capacitor in parallel with the gain resistor if the source impedance is high (above 10kohm) to prevent oscillation. The internal analog multiplexer must fully settle before ADC acquisition - insert at least 5us of acquisition delay when switching channels.
Compliance Information
RoHS and REACH compliant per Microchip product page. -E temperature grade supports industrial and automotive underhood applications but is not formally AEC-Q100 qualified - consult Microchip for Q100-screened variants.
