PIC12HV609T-I/MF - 8-Bit Flash MCU, 1.75KB, 20MHz | Microchip
MPN: PIC12HV609T-I/MF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.96 | $0.96 |
| 10 | $0.89 | $8.90 |
| 100 | $0.82 | $82.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.68 | $680.00 |
PIC12HV609T-I/MF Overview
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, program memory, data RAM, peripherals, and I/O on one silicon die. PIC12-series microcontrollers sit at the entry tier of Microchip's PIC architecture portfolio (8-bit PIC -> mid-range core -> microcontroller -> embedded processor -> semiconductor), targeting compact, cost-sensitive applications where 8-pin or 14-pin packages replace discrete logic and timers.
The PIC12HV609T-I/MF operates at up to 20 MHz clock speed with a 4.5V absolute maximum supply and 6 I/O pins. It integrates a precision 8 MHz internal oscillator, eliminating external crystal components in many designs. The device features an enhanced mid-range 14-bit instruction set, 128 bytes of EEPROM, and a 10-bit ADC with 4 channels. Hardware peripherals include a comparator, Capture/Compare/PWM (CCP) module, and a watchdog timer, all accessible through Microchip's MPLAB X IDE toolchain.
Typical applications include LED drivers, battery chargers, power-conversion controllers, sensor conditioning, and consumer appliance controls. The compact 3x3 mm DFN package and integrated shunt regulator reduce BOM cost and PCB area in space-constrained designs requiring deterministic 8-bit processing.
When designing with this device, ensure the DFN-8 exposed pad is soldered to a thermal pad for proper heat dissipation, and that firmware is validated with MPLAB X IDE and XC8 compiler. Decoupling capacitors must be placed within 5 mm of the supply pin to mitigate digital switching noise.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Source: Microchip PIC12F609/615/617 and PIC12HV609/615 datasheet DS41302D.
Drop-in alternatives for PIC12HV609T-I/MF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC12HV609T-I/MF (same form factor and footprint) — differing in Package, Internal Oscillator, Timers, ADC, Instruction Set.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12HV609-I/MF
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.49 / Unit
View Datasheet →PIC12HV609-I/MS
✅ Drop-In✓ In Stock
$0.76 / Unit
View Datasheet →PIC12HV609-I/P
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →PIC12HV609-E/SN
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.76 / Unit
View Datasheet →PIC12F609T-I/MD
✅ Drop-In✓ In Stock
$0.51 / Unit
View Datasheet →PIC12F615T-I/MF
✅ Drop-In✓ In Stock
$0.46 / Unit
View Datasheet →PIC12HV609T-I/MF Maximum Ratings & Electrical Characteristics
| Program Memory Size | 1.75 KB (1K x 14 Flash) |
| RAM Size | 64 bytes |
| EEPROM Size | 128 bytes |
| CPU Core | 8-bit PIC mid-range |
| Maximum Clock Frequency | 20 MHz |
| Internal Oscillator | 8 MHz (precision, factory calibrated) |
| Operating Voltage Range | 2.0 V to 5.5 V (shunt regulated) |
| I/O Pins | 6 |
| ADC | 10-bit, 4 channels |
| Number of Timers | 2 (8-bit, 16-bit) |
| Comparators | 1 |
| CCP Module | 1 (Capture/Compare/PWM) |
| Watchdog Timer | Yes |
| Package | 8-pin DFN (VSON) 3x3 mm, exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 C to +85 C (industrial) |
| Instruction Set | 14-bit, 35 instructions |
| RoHS Status | Compliant |
| MSL Level | 1 |
PIC12HV609T-I/MF Pin Configuration
| Pin 1 | GP5/OSC1/CLKIN — Bidirectional I/O / oscillator input / external clock input |
| Pin 2 | GP4/OSC2/CLKOUT/AN3 — Bidirectional I/O / oscillator output / ADC input channel 3 |
| Pin 3 | GP3/MCLR/VPP — Bidirectional I/O / Master Clear (reset) / programming voltage |
| Pin 4 | GP2/AN2/T0CKI/INT/COUT — Bidirectional I/O / ADC ch2 / Timer0 clock / external interrupt / comparator output |
| Pin 5 | GP1/AN1/C1-/ICSPCLK — Bidirectional I/O / ADC ch1 / comparator inverting input / ICSP clock |
| Pin 6 | GP0/AN0/C1IN+/ICSPDAT — Bidirectional I/O / ADC ch0 / comparator non-inverting input / ICSP data |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply (HV shunt regulated, 2.0V to 5.5V) |
Typical Applications
PIC12HV609T-I/MF is suitable for 6 applications: LED Driver and Dimming Controller, Battery Charger and Monitor, Sensor Signal Conditioning, Consumer Appliance Control, Switch-Mode Power Supply (SMPS) Auxiliary Controller, IoT Edge Sensor Node.
LED Driver and Dimming Controller
The PIC12HV609T-I/MF's integrated 8 MHz internal oscillator and 16-bit CCP/PWM module enable flicker-free LED dimming without external components. Its HV shunt regulator accepts input directly from a 3.3V or 5V rail, removing the need for an external LDO in the LED string power path. With 1.75 KB of flash, the device easily stores lookup tables for logarithmic dimming curves and color-mixing sequences. The 6 I/O pins drive MOSFET gates or constant-current sinks. Compared to a discrete 555-timer design, the PIC12HV609T-I/MF provides software-defined dimming curves, fault detection via the comparator, and faster time-to-market at lower BOM cost.
Recommended
Battery Charger and Monitor
The PIC12HV609T-I/MF's integrated HV shunt regulator and 10-bit ADC make it well-suited for single-cell Li-ion or NiMH battery chargers. The HV input tolerates the unregulated DC bus directly, simplifying the charger front-end. The 64-byte RAM tracks charge state and coulomb counts; the on-chip comparator implements over-voltage and over-current protection by hardware, offloading the CPU. With 128 bytes of EEPROM, the device stores calibration coefficients and learned battery parameters. Compared to a pure analog charger IC, the PIC12HV609T-I/MF enables software-reconfigurable charge profiles, adaptive termination algorithms, and field-upgradable firmware via ICSP without hardware rework.
Recommended
Sensor Signal Conditioning
The PIC12HV609T-I/MF's 10-bit ADC with 4 input channels, combined with the on-chip comparator, allows direct interface to analog sensors such as thermistors, photocells, and Hall-effect devices. The internal 8 MHz oscillator provides deterministic sampling timing for digital filtering of sensor noise. With 1.75 KB of flash, the device can run simple linearization routines and threshold alarms without external DSP. The HV shunt regulator accepts input from a 5V sensor supply bus. Compared to a discrete op-amp + ADC design, the PIC12HV609T-I/MF delivers a single-chip solution with on-chip calibration storage in EEPROM and software-definable output protocols including PWM, UART, and one-wire.
Recommended
Consumer Appliance Control
The PIC12HV609T-I/MF serves as the main control MCU in small consumer appliances such as coffee makers, fans, and small kitchen gadgets. Its 6 I/O pins drive buttons, LEDs, triac gate interfaces, and buzzer outputs directly. The HV shunt regulator simplifies power-supply design in 5V rectified mains-derived rails. With 128 bytes of EEPROM, the device stores user preferences, calibration, and fault logs across power cycles. Compared to a pure hardware state machine, the PIC12HV609T-I/MF enables feature differentiation through firmware, faster product variants from a single PCB, and field bug fixes via ICSP without board replacement.
Recommended
Switch-Mode Power Supply (SMPS) Auxiliary Controller
The PIC12HV609T-I/MF's HV shunt regulator and 20 MHz instruction cycle make it a strong fit as an auxiliary MCU in SMPS systems, handling housekeeping tasks such as fan control, fault logging, and housekeeping communication. The CCP/PWM module generates timing-critical drive signals, while the 10-bit ADC monitors rails, temperature, and current. With 1.75 KB of flash, complex state machines fit without external memory. Compared to a dedicated housekeeping ASIC, the PIC12HV609T-I/MF offers full firmware programmability for platform reuse across multiple PSU models, reducing qualification time and engineering effort.
Recommended
IoT Edge Sensor Node
The PIC12HV609T-I/MF is ideal for low-cost IoT edge sensor nodes where 8-bit processing, deterministic timing, and minimal BOM matter more than MIPS. The integrated HV regulator accepts direct battery or USB input. With 1.75 KB of flash, the device supports lightweight wireless protocol stacks such as simple UART-to-MQTT bridges. The 6 I/O pins interface to UART-connected radios, LEDs, and sensors. Compared to higher-end 32-bit MCUs, the PIC12HV609T-I/MF dramatically reduces unit cost and sleep current while delivering deterministic response for simple edge tasks. MPLAB X IDE and the XC8 compiler provide a free toolchain.
Recommended
Recommended Products Summary
Engineering reference data for PIC12HV609T-I/MF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12HV609-I/MF | PIC12HV609-I/MS | PIC12HV609-I/P | PIC12F609T-I/MD | PIC12F615T-I/MF |
|---|---|---|---|---|---|---|
| Package | DFN-8 (MF) 3x3 mm | DFN-8 (MF) - same | MSOP-8 (MS) | PDIP-8 (P) | DFN-8 (MD) - same | DFN-8 (MF) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 2 KB Flash |
| RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 128 bytes |
| Internal Oscillator | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| HV Shunt Regulator | Yes (integrated) | Yes (integrated) | Yes (integrated) | Yes (integrated) | No (external VDD) | No (external VDD) |
| ADC Channels | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit | 4 x 10-bit |
| PWM Channels | 1 (CCP) | 1 (CCP) | 1 (CCP) | 1 (CCP) | 1 (CCP) | 2 (ECCP + CCP) |
| Operating Voltage | 2.0V to 5.5V (HV) | 2.0V to 5.5V (HV) | 2.0V to 5.5V (HV) | 2.0V to 5.5V (HV) | 2.0V to 5.5V | 2.0V to 5.5V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated HV shunt regulator eliminates external LDO (vs PIC12F609T-I/MD)
- Compact DFN-8 3x3 mm package with exposed pad (vs PIC12HV609-I/P (PDIP-8))
- 128 bytes EEPROM for non-volatile parameter storage (vs PIC10F200 (older 6-pin PIC))
- 20 MHz instruction rate with mid-range 14-bit core (vs PIC12F509T-I/MS (baseline PIC12F))
Design Notes
The DFN-8 (VSON) package has an exposed thermal pad (EP) on the underside. This pad must be soldered to a copper pour of at least 10 mm^2 to meet JEDEC JESD51 thermal ratings and to provide mechanical solder-joint reliability. A typical 4-layer PCB with a 25 mm^2 EP thermal via array yields theta_JA near 60 C/W, well within industrial operating range.
The HV shunt regulator derives the internal VDD from the VDD pin via an internal shunt. For input voltages above 5.5V, an external series resistor must drop the voltage to within the regulator's safe range; otherwise, the shunt dissipates excess voltage and can overheat. Per datasheet DS41302D, the recommended external resistor value is R = (Vin_max - 5.5V) / I_load.
ICSP programming uses GP1/ICSPCLK and GP0/ICSPDAT; these pins must not be pulled low at power-up or the device may enter programming mode unintentionally. Add 10 kohm pull-up resistors on both lines if the application uses these pins as outputs driving low-impedance loads.
Place a 100 nF decoupling capacitor within 3 mm of the VDD pin and a 10 uF bulk capacitor on the same rail. Keep digital switching traces (PWM, oscillator) away from analog ADC inputs to minimize coupled noise. Route the GP3/MCLR line with a 10 kohm pull-up to VDD and a 100 nF cap to ground for clean reset behavior.
The internal 8 MHz oscillator provides +/- 1% accuracy across -40C to +85C, sufficient for UART at 9600 baud with 0.16% timing error. For higher baud rates or strict timing requirements, switch to the PLL-multiplied 20 MHz instruction cycle or use an external crystal on OSC1/OSC2, per datasheet DS41302D oscillator configuration guidelines.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 variants for automotive applications.
