PIC16F18345T-H/SSVAO - 14KB Flash 8-bit MCU, High-Temp SSOP-20 | Microchip
MPN: PIC16F18345T-H/SSVAO ✓ فعالPIC16F18345T-H/SSVAO جائزہ
A PIC microcontroller is a compact, programmable embedded computing device that integrates a CPU, non-volatile Flash memory, RAM, data EEPROM, and a rich set of analog and digital peripherals onto a single silicon die. Within the embedded hierarchy, PIC microcontrollers sit below general-purpose microprocessors and above discrete logic: they execute firmware stored in Flash, drive GPIOs and communication peripherals (UART, SPI, I2C), and provide on-chip ADC, comparators, PWM and timing resources so the same chip can replace multiple analog and logic ICs in a design.
Key differentiating features of this part include Peripheral Pin Select (PPS), which lets the user remap most digital peripherals to a wide choice of physical pins for board-layout flexibility, Core Independent Peripherals (CIPs) such as CLC, NCO, DSM and Configurable Logic Cells that offload tasks from the CPU, and eXtreme Low Power (XLP) technology with deep-sleep currents in the nanoampere range. The device integrates a 10-bit ADC with Computation (ADC2) for automated averaging, threshold comparison, and oversampling.
The architecture combines a RISC instruction set with single-cycle execution except for branches, a vectored interrupt controller, and hardware-accelerated math and signal-conditioning blocks. The high-temperature VAO characterization extends the qualified junction-temperature range beyond the standard -40C to +125C industrial window.
Typical applications include automotive body and comfort ECUs, sensor-interface modules, battery-management sub-assemblies, industrial sensor nodes, low-power IoT edge devices, and white-goods control boards where footprint, peripheral integration, and temperature tolerance matter.
When designing with the PIC16F18345T-H/SSVAO, remember that the 'H' temperature grade changes the analog and timing characterization versus the standard 'I' grade; consult the dedicated high-temperature datasheet (DS40002024) for thermal and AC/DC derating curves before committing the layout.
This page synthesizes distributor pricing, drop-in alternative listings, and practical design notes not found in the manufacturer datasheet, sourced from Microchip, DigiKey, Mouser and trusted distributor catalogs as of 2026-09-20.
کے لیے ڈراپ اِن متبادل PIC16F18345T-H/SSVAO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16F18345T-H/SSVAO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف ADC, Package, Communication Peripherals, Core Architecture, Data EEPROM.
PIC16F18345T-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F18345T-E/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F18345-I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F18344T-I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F18325T-I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F18345T-H/SSVAO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 14 KB |
| Data SRAM | 1 KB |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Maximum CPU Clock | 32 MHz (8 MIPS) |
| پیکیج | 20-pin SSOP (SS) |
| پن کی تعداد | 20 |
| ADC | 10-bit ADC with Computation (ADC2) |
| Temperature Grade | H - High Temperature (Automotive VAO) |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, NCO, DSM, Configurable Logic Cell |
| eXtreme Low Power (XLP) | Yes (nanoamp sleep currents) |
| Communication Peripherals | UART, SPI, I2C |
| PWM Outputs | Yes (multiple CCP/ECCP channels) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| MSL لیول | 3 (168 hours) |
| RoHS اسٹیٹس | Compliant |
PIC16F18345T-H/SSVAO پن کنفیگریشن
| پن 1 | RA3/AN3/VPP/MCLR — GPIO / ADC input / programming high voltage / master clear reset (active low) |
| پن 2 | RA4/AN4 — GPIO / ADC input |
| پن 3 | RA5/AN5 — GPIO / ADC input |
| پن 4 | RA0/AN0 — GPIO / ADC input |
| پن 5 | RA1/AN1 — GPIO / ADC input |
| پن 6 | RA2/AN2 — GPIO / ADC input |
| پن 7 | VSS — Ground reference |
| پن 8 | RA7 — GPIO only |
| پن 9 | RA6 — GPIO only |
| پن 10 | RC0 — GPIO / PPS-remappable peripheral |
| پن 11 | RC1 — GPIO / PPS-remappable peripheral |
| پن 12 | RC2 — GPIO / PPS-remappable peripheral |
| پن 13 | RC3 — GPIO / PPS-remappable peripheral |
| پن 14 | RC4 — GPIO / PPS-remappable peripheral |
| پن 15 | RC5 — GPIO / PPS-remappable peripheral |
| پن 16 | RC6 — GPIO / PPS-remappable peripheral |
| پن 17 | RC7 — GPIO / PPS-remappable peripheral |
| پن 18 | OSC2/CLKOUT — Crystal output / clock output |
| پن 19 | OSC1/CLKIN — Crystal input / external clock input |
| پن 20 | VDD — Positive supply voltage (2.3V to 5.5V) |
عام استعمالات
PIC16F18345T-H/SSVAO کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body and Comfort ECU, Industrial Sensor Interface Module, Battery-Management Sub-Assembly, Low-Power IoT Edge Node, White-Goods Control Board, Portable Medical Monitoring Accessory.
Automotive Body and Comfort ECU
The PIC16F18345T-H/SSVAO fits automotive body and comfort modules such as seat controllers, mirror adjusters, and HVAC flap drivers because it combines a 14KB Flash firmware budget, 1KB SRAM for protocol stacks, and the H-temperature VAO qualification that survives underhood thermal stress. The 10-bit ADC with Computation (ADC2) handles multiple analog sensor inputs (NTC temperature, position feedback) with built-in averaging to reduce CPU wakeups. Core Independent Peripherals like the Configurable Logic Cell (CLC) implement window-watchdog and wake-on-event logic without firmware intervention, allowing the CPU to remain in nanoamp sleep for most of the duty cycle. The 20-pin SSOP package keeps the PCB small enough to fit inside actuator housings while exposing enough I/O for CAN-transceiver handshake signals and motor-driver PWM.
تجویز کردہ
Industrial Sensor Interface Module
For industrial 4-20mA sensor transmitters, pressure-sensor conditioning boards, and analog front-end modules, the PIC16F18345T-H/SSVAO provides a 10-bit ADC with Computation (ADC2) that performs hardware oversampling and threshold detection offloaded from the CPU. Peripheral Pin Select (PPS) lets the designer route SPI to the MISO/MOSI pins and UART to the RS-485 interface without swapping the IC, simplifying layout for space-constrained sensor enclosures. The H-grade temperature qualification supports deployment near motors, heaters, and outdoor cabinets. Nanoamp XLP sleep currents allow battery- or energy-harvest-powered wireless sensor nodes to run for years on a single primary cell while still waking on a CLC-configured edge event.
تجویز کردہ
Battery-Management Sub-Assembly
Inside a battery-management sub-assembly or smart-battery-pack monitor, the PIC16F18345T-H/SSVAO provides a low-power supervisory controller that reads cell voltages through its 10-bit ADC, balances cells through PWM-driven MOSFETs, and communicates with the host BMS over UART or I2C. The 256-byte EEPROM stores lifetime cycle counts, calibration constants, and authentication tokens across power cycles without a separate memory IC. XLP sleep with peripheral run mode keeps quiescent current below 1 uA between cell-voltage scans, extending pack runtime. The H-grade VAO qualification allows the same firmware and BOM to be reused across consumer and automotive-grade battery packs, simplifying platform engineering.
تجویز کردہ
Low-Power IoT Edge Node
The PIC16F18345T-H/SSVAO is well suited to wireless IoT edge nodes that pair a sub-GHz or BLE radio with on-board sensing: the PIC16 acts as the sensor-firmware host, periodically waking from XLP sleep to service the ADC, push measurements over SPI to a radio module, and return to nanoamp standby. The 1KB SRAM accommodates a small LoRaWAN or Zigbee MAC stack without overflowing, while 14KB Flash holds the application code, a tiny RTOS, and over-the-air update bootloader. PPS lets the designer place UART, SPI, and interrupts on any convenient pin, which is critical when the radio footprint dictates the antenna keep-out zone. The 2.3V-5.5V supply range permits direct operation from a single lithium primary or a regulated USB rail.
تجویز کردہ
White-Goods Control Board
Washing-machine, dishwasher, oven and refrigerator control boards benefit from the PIC16F18345T-H/SSVAO's combination of robust mixed-signal peripherals and high-temperature tolerance. The 10-bit ADC reads NTC temperature probes, water-level sensors, and motor-current shunts; the CLCs generate zero-cross detection for triac-driven heater elements without CPU overhead. The H-temperature grade tolerates the sustained thermal load inside an appliance cabinet or near a compressor. The 20-pin SSOP keeps the BOM cost low enough for high-volume consumer appliances while still providing enough pins for user-interface keypads, LED indicators, and a UART debug port for production testing.
تجویز کردہ
Portable Medical Monitoring Accessory
The PIC16F18345T-H/SSVAO is a strong fit for portable medical accessories such as pulse-oximeter probe boards, insulin-pen dose loggers, and wearable thermometer data loggers that demand both low power and reliability. The 14KB Flash runs a small RTOS plus signal-processing firmware, while the 10-bit ADC with Computation oversamples photodiode or thermistor signals to improve SNR before data reduction. Nanoamp XLP sleep enables weeks of standby on a coin cell between measurements, and EEPROM stores patient-side calibration data. Although the part is not FDA-cleared on its own, its H-grade thermal characterization supports enclosed-body-worn enclosures that warm above ambient skin temperature during continuous wear.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16F18345T-H/SSVAO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F18345T-I/SS | PIC16F18345T-E/SS | PIC16F18345-I/SS | PIC16F18344T-I/SS | PIC16F18325T-I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-20 (Tape & Reel, VAO) | SSOP-20 - same | SSOP-20 - same | SSOP-20 (Tube) - same footprint | SSOP-20 - same | SSOP-20 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 14 KB | 14 KB | 14 KB | 14 KB | 8 KB | 14 KB |
| Data SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 512 B | 256 B |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Clock | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) |
| Temperature Grade | H (High-Temperature VAO) | I (Industrial) | E (Extended) | I (Industrial) | I (Industrial) | I (Industrial) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes |
| Automotive VAO Process | Yes | No | No | No | No | No |
اہم امتیازی خصوصیات
- High-temperature VAO automotive qualification in SSOP-20 (بمقابلہPIC16F18345T-I/SS)
- Larger SRAM and richer CIP set than the PIC16F18325T-I/SS (بمقابلہPIC16F18325T-I/SS)
- 14KB Flash matches the PIC16F18344T-I/SS but doubles the SRAM (بمقابلہPIC16F18344T-I/SS)
ڈیزائن نوٹس
The PIC16F18345T-H/SSVAO is qualified to the H temperature grade with VAO automotive-process extension; however, thermal derating in the SSOP-20 package still applies. Estimated: at 5V supply, 32 MHz active mode, and typical GPIO toggling load, internal dissipation stays under 20 mW (theta_JA approximately 80 C/W for SSOP-20), giving a junction rise of roughly 1.6 C above ambient - well within the H-grade headroom. At sustained 125 C ambient, place thermal vias under the exposed die attach pad region and avoid placing the IC adjacent to high-current power devices. Always cross-check final thermal performance against the manufacturer high-temperature datasheet supplement DS40002024B.
Decouple VDD (pin 20) with a 100 nF X7R ceramic placed within 3 mm of the pin, and add a bulk 1-10 uF ceramic on the same rail. For XLP sleep-current-sensitive designs, prefer an MCP1700 LDO or similar low-Iq regulator because the PIC16F18345T-H/SSVAO itself can drop below 100 nA in deep sleep but a noisy regulator can defeat that. Place the decoupling loop area below 5 mm^2 to minimize parasitic inductance that couples switching noise into the ADC reference.
Route the crystal traces (OSC1/OSC2, pins 19/18) as short, symmetric pairs with a guard ground on both sides; keep them away from the ADC analog inputs to prevent clock coupling into ADC readings. Because the device supports Peripheral Pin Select (PPS), the UART/SPI/I2C functions can be remapped after layout - but the physical pinout of the SSOP-20 package is fixed, so the schematic symbol must reflect the package, not the firmware-remapped function. Provide a solid ground pour under the IC body and tie VSS (pin 7) directly to it with at least two vias for thermal and electrical continuity.
Estimated: a frequent mistake is substituting the H/SSVAO part with an I/SS part in production without re-running the high-temperature characterization - the I/SS part is rated only to +125 C, not the extended H window. Another common pitfall is forgetting that the device ships from Microchip with the internal 32 MHz HFINTOSC active by default; an external crystal is required only if your application needs a tighter frequency reference or lower long-term jitter. Finally, do not enable the MCLR function as a GPIO on pin 1 if the in-circuit serial programmer needs to drive VPP - configure MCLR mode in the configuration words to keep ISP functional.
تعمیل کی معلومات
RoHS and lead-free per Microchip product page. VAO suffix indicates automotive-process qualification per Microchip's automotive quality flow (AEC-Q100 equivalent screening).
