PIC16F15355-I/SSVAO - 14KB Flash 8-bit MCU, AEC-Q100, SSOP-28 | Microchip
MPN: PIC16F15355-I/SSVAO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.47 | $147.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16F15355-I/SSVAO Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), volatile data memory (SRAM), and a mix of digital and analog peripherals. PIC® MCUs use a modified Harvard RISC architecture, executing one instruction per clock cycle for deterministic, low-power embedded control. Within the broader power management and embedded hierarchy, an MCU sits at the lowest firmware-driven layer: above it are microprocessors, SoCs, and application processors. The 8-bit PIC16 family specifically targets cost- and power-sensitive applications where 32-bit performance is not required.
The PIC16F15355-I/SSVAO integrates Intelligent Analog peripherals (10-bit ADC, 5-bit DAC, comparators), Core Independent Peripherals (CIPs) such as Configurable Logic Cells and PWMs, and Microchip's eXtreme Low-Power (XLP) technology that delivers sub-uA sleep currents. The 28-pin SSOP footprint with 0.65mm pitch is one of the most widely used automotive MCU packages, enabling direct PCB reuse across PIC16F15344/15345/15354 family variants.
Typical applications include automotive body control modules, sensor signal conditioning nodes, low-power IoT sensor hubs, LED lighting controllers, and small motor/valve drivers. CIPs allow timer-driven state machines that offload work from the CPU, lowering average current and enabling years of operation from a single battery.
When designing with this part, evaluate whether the application truly needs automotive-grade qualification (AEC-Q100) versus the standard PIC16F15355-I/SS. The VAO variant is typically 20-40% more expensive and has longer lead times, so reserve it for automotive-grade projects.
Drop-in alternatives for PIC16F15355-I/SSVAO — 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:
PIC16F15355-I/SS
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F15355-E/SSVAO
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F15354-I/SSVAO
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F15345-I/SSVAO
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F15344-I/SSVAO
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F15355-I/SSVAO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (modified Harvard) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V (F-version) |
| DAC | 5-bit |
| Comparators | Yes (on-chip) |
| PWM Channels | Yes (CIP-based) |
| CIPs (Core Independent Peripherals) | CLC, NCO, PWM, CWG |
| Temperature Sensor | On-chip |
| Power Module Disable (PMD) | Yes (peripheral gating) |
| XLP eXtreme Low-Power | Yes (sub-uA sleep) |
| Package | 28-SSOP (5.30 mm body width) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C (industrial "I" grade) |
| Automotive Qualification | AEC-Q100 (VAO suffix) |
| RoHS Status | Compliant |
PIC16F15355-I/SSVAO Pin Configuration
| Pin 1 | RA0/ICSPDAT — PORTA bit 0 / ICD data |
| Pin 2 | RA1/ICSPCLK — PORTA bit 1 / ICD clock |
| Pin 3 | RA2 — PORTA bit 2 |
| Pin 4 | RA3/MCLR — PORTA bit 3 / Master Clear (reset) |
| Pin 5 | RA4 — PORTA bit 4 |
| Pin 6 | RA5 — PORTA bit 5 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — PORTA bit 7 |
| Pin 9 | RA6 — PORTA bit 6 |
| Pin 10 | RC0 — PORTC bit 0 |
| Pin 11 | RC1 — PORTC bit 1 |
| Pin 12 | RC2 — PORTC bit 2 |
| Pin 13 | RC3 — PORTC bit 3 |
| Pin 14 | RC4 — PORTC bit 4 |
| Pin 15 | RC5 — PORTC bit 5 |
| Pin 16 | RC6 — PORTC bit 6 |
| Pin 17 | RC7 — PORTC bit 7 |
| Pin 18 | VSS — Ground reference (digital core) |
| Pin 19 | VDD — Positive supply (2.3V to 5.5V) |
| Pin 20 | RB0 — PORTB bit 0 (interrupt-on-change) |
| Pin 21 | RB1 — PORTB bit 1 (interrupt-on-change) |
| Pin 22 | RB2 — PORTB bit 2 (interrupt-on-change) |
| Pin 23 | RB3 — PORTB bit 3 (interrupt-on-change) |
| Pin 24 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Pin 25 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Pin 26 | RB6 — PORTB bit 6 (interrupt-on-change) |
| Pin 27 | RB7 — PORTB bit 7 (interrupt-on-change) |
| Pin 28 | AVDD/VDD — Analog positive supply (tied to VDD) |
Typical Applications
PIC16F15355-I/SSVAO is suitable for 6 applications: Automotive Body Control Modules, Automotive Sensor Signal Conditioning, Battery-Powered IoT Sensor Hubs, LED Lighting Controllers, Small DC Motor / Valve Drivers, Automotive LIN Slave Nodes.
Automotive Body Control Modules
The PIC16F15355-I/SSVAO is well-suited for automotive body control modules such as door, window, mirror, and seat controllers that require AEC-Q100 qualification. Its 32 MHz core provides enough MIPS to handle LIN bus protocol stacks plus firmware-driven actuator logic, while 14 KB Flash comfortably accommodates full LIN state machines plus calibration tables. CIPs like CLC and PWM offload repetitive state-machine work from the CPU, lowering average current draw during idle. The 28-SSOP footprint has been used across PIC16F153xx family generations, giving designers a migration path to PIC16F15356-I/SSVAO for future feature growth. Estimated: at 5V and 32 MHz active with 50% duty cycle, typical core current is 2-3 mA, allowing sub-3 mA average for LIN-listen duty.
Recommended
Automotive Sensor Signal Conditioning
The PIC16F15355-I/SSVAO is commonly deployed as a smart-sensor front-end for temperature, pressure, and humidity sensors in automotive and industrial environments. Its 10-bit ADC with multiple channels accepts inputs from bridge sensors, while the 5-bit DAC enables offset trimming and stimulus generation. The on-chip temperature sensor and comparator provide built-in diagnostics for sensor health checks required by automotive SPICE- and ASIL-rated modules. XLP sub-uA sleep current supports battery-backed sensor nodes that must run for years on coin-cell or single-cell Li-ion power. The AEC-Q100 VAO suffix confirms it meets automotive reliability standards for underhood, cabin, and chassis mounting positions.
Recommended
Battery-Powered IoT Sensor Hubs
The PIC16F15355-I/SSVAO, while automotive-qualified, is also a strong fit for low-power IoT sensor hubs operating from 2.3-5.5 V supplies where automotive-grade reliability is desired. XLP technology delivers sub-uA sleep currents, and the integrated 32 MHz HFINTOSC eliminates the need for an external crystal in many designs. CLCs and NCO can implement wake-on-event timing without the CPU active, reducing average system current to the uA range for battery-life estimates measured in years. The 28-SSOP package is hand-solder-friendly and compatible with hand-prototype as well as high-volume reflow assembly. When automotive qualification is not required, the non-VAO PIC16F15355-I/SS offers the same silicon at lower cost.
Recommended
LED Lighting Controllers
The PIC16F15355-I/SSVAO drives multi-channel LED controllers for automotive ambient lighting, architectural lighting, and industrial signage. Its CIP-based PWM peripherals generate multi-channel phase-shifted PWM outputs without CPU intervention, supporting smooth color-mixing transitions and dimming curves. The 10-bit ADC reads ambient-light sensors for daylight harvesting, while the 5-bit DAC provides bias voltages for constant-current LED drivers. AEC-Q100 qualification makes it suitable for interior cabin lighting, underbody accent lighting, and headlamp leveling. Combined with the 32 MHz core, the MCU implements DALI, DMX512, or LIN-based control protocols in firmware with no external protocol IC.
Recommended
Small DC Motor / Valve Drivers
The PIC16F15355-I/SSVAO is a frequent choice for small DC motor, stepper, and solenoid-valve drivers in automotive body and HVAC systems. Complementary PWM outputs drive half-bridges for brushed DC motors up to 1-2 A (with external FETs), while the 10-bit ADC reads motor current via shunt amplifiers for closed-loop torque control. The on-chip comparator enables hardware over-current protection that trips without CPU latency. The CIP suite implements trapezoidal commutation for stepper motors directly in hardware, leaving the CPU free to manage communication stacks. AEC-Q100 qualification ensures reliable operation in underhood thermal environments up to 125C in the E-grade version.
Recommended
Automotive LIN Slave Nodes
The PIC16F15355-I/SSVAO is a top-pick microcontroller for automotive LIN (Local Interconnect Network) slave nodes that require AEC-Q100 qualification. Its EUSART supports LIN 2.x protocol auto-baud detection, and the 32 MHz core leaves sufficient MIPS for full LIN schedule table handling plus application logic. The 14 KB Flash accommodates LIN state machines, node capability files (NCFs), and customer application code. The 28-SSOP package is hand-prototype-friendly, and XLP sub-uA sleep current keeps the average draw under 100 uA during LIN bus silence, satisfying automotive quiescent-current specs. Designers can migrate upward to PIC16F15356-I/SSVAO when adding CAN FD gateway features.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F15355-I/SSVAO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F15355-I/SS | PIC16F15355-E/SSVAO | PIC16F15354-I/SSVAO | PIC16F15345-I/SSVAO | PIC16F15344-I/SSVAO |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 14 KB | 14 KB | 7 KB (-50%) | 7 KB | 7 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 512 B (-50%) | 1 KB | 512 B |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| AEC-Q100 Grade | Yes (VAO) | No (industrial) | Yes (VAO, +125C) | Yes (VAO) | Yes (VAO) | Yes (VAO) |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Approx Unit Price (qty 1000) | $1.18 | $0.95 (industrial) | $1.32 (extended) | $1.10 (smaller Flash) | $1.08 | $1.05 |
Key Differentiators
- Higher Flash density than PIC16F15354 family siblings (vs PIC16F15354-I/SSVAO)
- Industrial temperature grade vs full automotive grade (vs PIC16F15355-E/SSVAO)
- Cost-down path within the same 28-SSOP footprint (vs PIC16F15344-I/SSVAO)
Design Notes
Estimated: the 28-SSOP package has typical theta_JA of 100-110 C/W in still air. At 32 MHz active and 5V VDD, core current is roughly 4-5 mA, yielding 20-25 mW internal dissipation. Even at ambient 85C, junction rise is only 2-3 C above ambient, so no heatsink is required. For the E-grade (125C) VAO variant in sealed enclosures, ensure at least 50 mm^2 of PCB copper tied to VDD/VSS for additional thermal spreading.
Decouple VDD (pin 19) with a 100 nF ceramic capacitor placed within 3 mm of the pin, plus a bulk 1-10 uF tantalum or ceramic on the VDD rail. Tie AVDD (pin 28) to VDD with a 100 nF + 1 uF LC-filtered analog supply for best ADC performance. Use Microchip's MPLAB X IDE Power Budget Calculator to verify sleep-mode currents, which can drop below 1 uA with the PIC16 XLP modes and proper PMD peripheral gating.
Place the ICSP pins (RA0/RA1) on the PCB such that a 6-pin header or Tag-Connect pads are reachable for programming and debug. Route ICSPCLK and ICSPDAT as short, parallel traces with a ground guard to minimize noise pickup. Keep the MCLR pin (RA3) connected to a 10 kohm pull-up to VDD with a 100 nF decoupling capacitor to enable stable reset; an external supervisor IC is recommended for automotive applications.
Do not assume all PIC16F153xx 28-pin variants share the same pinout - the 15313 and 15323 are 8/14-pin variants with different pin functions. Verify each variant's pinout in the family datasheet before PCB reuse. Avoid driving large capacitive loads (>50 pF) directly on the oscillator pins (RA6/RA7); use a series resistor or buffer if needed. When using the internal HFINTOSC, allow at least 1 ms stabilization time after OSCFRQ change before relying on UART or PWM timing.
Compliance Information
AEC-Q100 qualified by Microchip for automotive applications. RoHS and lead-free compliant per Microchip product page; PPAP and IMDS documentation available through Microchip sales for VAO variants.
