PIC18F1220-H/SS - 8-bit 25MHz 4KB Flash MCU | Microchip
MPN: PIC18F1220-H/SS ✓ فعالPIC18F1220-H/SS جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (SRAM), a small amount of byte-erasable EEPROM, and a set of on-chip peripherals (timers, ADC, communications ports, I/O). The PIC18F family extends the PIC16 baseline with a 16-bit instruction word, linear addressing and a richer interrupt controller, placing the PIC18F1220 in the broader hierarchy: MCU -> 8-bit MCU -> PIC18 family -> enhanced Flash microcontrollers. This positioning explains why the PIC18F1220 still ships today: it covers applications that need 8-bit simplicity but require more code space and EEPROM than a baseline PIC16 can provide.
Key features include 16 general-purpose I/O pins, 7 channels of 10-bit Analog-to-Digital converter (ADC), an Addressable USART (AUSART) for RS-232/RS-485, capture/compare/PWM modules and nanoWatt Technology with six software-controlled power-managed modes that drop standby current to approximately 0.1 uA. The 'C' compiler-friendly architecture (16-bit instructions, linear data memory) allows the device to be programmed in standard C with the MPLAB XC8 toolchain, reducing time-to-prototype versus assembly-only PIC16 designs.
Typical applications include automotive body and chassis nodes (the -H temperature grade qualifies this part), low-power remote sensor transmitters, household appliance control boards, lighting controllers, and industrial interface modules that previously used PIC16F parts but have outgrown their Flash budget. Two independent analog comparators plus a 10-bit ADC make the device a common choice for battery management front-ends and fan/PWM closed-loop control.
When designing with this MCU, choose between the internal 8 MHz oscillator and an external crystal; the PLL block is not present, so system clock is capped at 25 MHz from the PLL-less 4x branch. Brown-out reset and watchdog timer are configured in configuration words - do not leave them at factory defaults. For applications that demand more memory or more pins, migrate to PIC18F1320 or PIC18F24K20 rather than attempting to externally bank the 4 KB Flash.
کے لیے ڈراپ اِن متبادل PIC18F1220-H/SS — 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 PIC18F1220-H/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory (Flash), Timers, ADC, Core Architecture.
PIC18F1220-H/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F1220-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F1220-E/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F1320-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F14K22-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F24K20-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F1220-H/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC18, 8-bit RISC |
| Program Memory Type | Flash |
| Program Memory Size | 4 KB (2K x 16) |
| RAM Size | 256 bytes |
| EEPROM Size | 128 bytes |
| Maximum CPU Frequency | 25 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit, 7 channels |
| Communication Interfaces | AUSART (RS-232/RS-485), SSP (SPI/I2C) |
| Timers | Timer0, Timer1, Timer2, Timer3 |
| PWM Channels | 1 CCP (10-bit) |
| پیکیج | 20-pin SSOP (5.30 mm body width) |
| Temperature Grade | -H (Automotive, -40C to +150C) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | -40C to +150C |
| Self-Programming | Yes |
| In-Circuit Debug | ICD |
| RoHS اسٹیٹس | Compliant |
PIC18F1220-H/SS پن کنفیگریشن
| پن 1 | MCLR/RA5 — Master Clear (reset) input or digital I/O RA5 |
| پن 2 | RA0/AN0 — Digital I/O RA0 or analog input AN0 |
| پن 3 | RA1/AN1 — Digital I/O RA1 or analog input AN1 |
| پن 4 | RA2/AN2/VREF- — Digital I/O RA2 or analog input AN2 or ADC negative reference |
| پن 5 | RA3/AN3/VREF+ — Digital I/O RA3 or analog input AN3 or ADC positive reference |
| پن 6 | RA4/AN4 — Digital I/O RA4 or analog input AN4 (open-drain) |
| پن 7 | OSC1/RA7 — External oscillator input or digital I/O RA7 |
| پن 8 | OSC2/RA6 — External oscillator output or digital I/O RA6 |
| پن 9 | RC0 — Digital I/O RC0 or Timer1 oscillator |
| پن 10 | RC1 — Digital I/O RC1 or CCP2 output |
| پن 11 | RC2 — Digital I/O RC2 or CCP1 output/PWM |
| پن 12 | RC3 — Digital I/O RC3 or SPI/I2C clock |
| پن 13 | RC4 — Digital I/O RC4 or SPI data input |
| پن 14 | RC5 — Digital I/O RC5 or SPI data output |
| پن 15 | RC6 — Digital I/O RC6 or AUSART TX |
| پن 16 | RC7 — Digital I/O RC7 or AUSART RX |
| پن 17 | RB0/AN5 — Digital I/O RB0 or analog input AN5 (interrupt-on-change) |
| پن 18 | RB1/AN6 — Digital I/O RB1 or analog input AN6 (interrupt-on-change) |
| پن 19 | VSS — Ground reference |
| پن 20 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
عام استعمالات
PIC18F1220-H/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Automotive Body Control Module, Low-Power Remote Sensor Transmitter, Household Appliance Control Board, LED Lighting Controller, Industrial Interface Module, Battery Management Front-End.
Automotive Body Control Module
The PIC18F1220-H/SS fits automotive body and chassis nodes because the -H temperature grade qualifies it for under-hood and cabin environments from -40C cold-crank to +150C steady-state. With 16 I/O pins it can drive a seat-position switch matrix, four H-bridge relays and a LIN-bus follower, while the AUSART block handles the LIN-to-CAN bridge. The 10-bit 7-channel ADC reads thermistor and current-sense inputs with adequate resolution for window-defrost and seat-heater PWM closed-loop control. Designers place the part on a 20-SSOP footprint with the internal 8 MHz oscillator to minimize BOM cost and skip an external crystal; the nanoWatt standby drops quiescent draw below 0.1 uA between ignition cycles. Per the Microchip automotive-grade qualification, this part is the canonical 8-bit companion to PIC18F1320 and PIC18F46K22 nodes on the same vehicle network.
تجویز کردہ
Low-Power Remote Sensor Transmitter
The PIC18F1220-H/SS is a strong fit for battery-powered remote sensor nodes because nanoWatt Technology with six software-controlled power-managed modes drops standby current to roughly 0.1 uA. A wake-on-timer or wake-on-ADC interrupt pattern lets the part sit idle for years on a coin cell while periodically sampling a thermistor or moisture probe on the 10-bit 7-channel ADC and transmitting the result via the AUSART block. The 4 KB Flash holds a state-machine scheduler plus a calibration table, while 128 bytes of EEPROM stores the sensor calibration constants that survive power-down. Pin count (16 GPIO) is sufficient for an SPI sensor, an LED indicator, an interrupt input and a UART debug channel. The automotive -40C to +150C temperature grade also permits outdoor deployment in cold-climate agricultural or industrial sensing applications where consumer-grade parts would fail.
تجویز کردہ
Household Appliance Control Board
Appliance designers choose the PIC18F1220-H/SS for washing-machine, dishwasher and microwave control boards because the 25 MHz PIC18 core provides enough MIPS to drive a user-interface state machine plus motor control loops, while 16 GPIO connect to the keypad, triac drivers, buzzer, LCD and a tri-color LED bar. The 10-bit ADC reads the wash-water thermistor and the motor-current shunt with sufficient resolution for the PID temperature regulation. Self-programmability lets the manufacturer ship the same PCB and re-flash firmware for each appliance SKU, avoiding a multi-board inventory. The wide 2.0 V to 5.5 V supply range simplifies designs powered from an unregulated 5 V wall adapter. For higher-power appliances like induction cooktops, migrate to PIC18F46K22 with its 64 MHz core.
تجویز کردہ
LED Lighting Controller
The PIC18F1220-H/SS is well-suited as a DMX-512 or DALI lighting controller because the AUSART block on RC6/RC7 maps directly to a DMX transceiver at 250 kbaud without external UART glue logic. The capture/compare/PWM module generates the 10-bit PWM dimming signal that drives a constant-current LED driver, while the 10-bit ADC reads a panel-mounted light sensor for closed-loop brightness control. With 4 KB Flash the device can host a small DMX personality library plus the temperature-folding algorithm required to protect high-power LED arrays. The -H automotive temperature grade extends the design to outdoor architectural and automotive interior lighting where the junction runs hot under sealed enclosures. The 20-SSOP package fits inside a 12 mm diameter down-light can.
تجویز کردہ
Industrial Interface Module
Industrial sensor-interface and protocol-bridge modules benefit from the PIC18F1220-H/SS because the AUSART block provides RS-232/RS-485 connectivity and the SSP block handles SPI or I2C peripherals on the same die. With 16 GPIO the device can manage a rotary encoder, an indicator LED, a relay driver and a watchdog supervisor, all while the 10-bit ADC samples a 4-20 mA loop. The PIC18 instruction set and MPLAB XC8 C compiler allow firmware reuse across Modbus-RTU and custom protocols, and the 25 MHz core is fast enough for 115.2 kbaud UART plus background polling. The -H automotive grade actually exceeds industrial temperature requirements, giving a wide margin in factory-floor enclosures where ambient may exceed 70 C near motors or heaters.
تجویز کردہ
Battery Management Front-End
The PIC18F1220-H/SS works as a low-cost battery management front-end for 4-cell Li-ion packs or 12 V lead-acid batteries because the 10-bit 7-channel ADC reads individual cell voltages through resistor dividers while the AUSART block streams pack telemetry to a host charger. The capture/compare/PWM module drives a balancing MOSFET array with 10-bit duty resolution, allowing precise cell-balancing during the CV phase. The 4 KB Flash holds the Li-ion charge profile plus safety timers, and 128 bytes of EEPROM stores the chemistry calibration data that survives deep discharge. The -40C to +150C -H temperature grade covers both cold-soak and hot-trunk automotive environments. For higher cell-count packs, migrate to PIC18F46K22 with its 11-channel ADC.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC18F1220-H/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC18F1220-H/SO | PIC18F1220-I/SS | PIC18F1220-E/SS | PIC18F1320-I/SS | PIC18F14K22-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SOIC (wider body, different footprint) | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | PIC18 8-bit, 25 MHz | PIC18 8-bit, 25 MHz - same | PIC18 8-bit, 25 MHz - same | PIC18 K-series 8-bit, 64 MHz | PIC18 K-series 8-bit, 64 MHz | |
| Flash Memory | 4 KB | 4 KB - same | 8 KB (2x) | 16 KB (4x) | 16 KB (4x) | |
| RAM | 256 B | 256 B - same | 512 B (2x) | 768 B (3x) | 768 B (3x) | |
| Temperature Grade | -H automotive -40C to +150C | -I industrial -40C to +85C (lower max) | -E extended -40C to +125C (lower max) | -I industrial -40C to +85C | -I industrial -40C to +85C | |
| I/O Pins | 16 | 16 - same | 16 - same | 18 (2 more) | 24 (8 more, 28-SSOP) | |
| ADC Channels | 7 x 10-bit | 7 x 10-bit - same | 7 x 10-bit - same | 9 x 10-bit | 11 x 10-bit | |
| Unit Price (qty 1) | $3.55 | ~$3.10 (lower, industrial grade) | ~$3.80 (more Flash) | ~$2.95 (newer, smaller die) | ~$3.20 (28-SSOP package) |
اہم امتیازی خصوصیات
- Automotive -H temperature grade (-40C to +150C) is mandatory for under-hood and chassis nodes (بمقابلہPIC18F1220-I/SS)
- 20-pin SSOP keeps board area smaller than SOIC alternative for space-constrained nodes (بمقابلہPIC18F1220-H/SO)
- PIC18 C-friendly architecture enables MPLAB XC8 firmware versus PIC16 assembly-only designs (بمقابلہPIC16F84A-I/P)
ڈیزائن نوٹس
PIC18F1220-H/SS draws roughly 0.1 uA in nanoWatt standby (RC_RUN=0, all peripherals off) and about 1.4 mA active at 5 V/25 MHz with the ADC on. For battery-powered designs, enter Sleep via the SLEEP instruction and wake on watchdog timeout (WDT) or external interrupt (INT0/RB0). The brown-out reset (BOR) configuration word should be set so VDD sag below 2.0 V triggers a clean reset - leaving BOR off causes register corruption during slow VDD ramp. Decouple VDD with a 100 nF ceramic placed within 5 mm of pin 20, and add a 10 uF bulk capacitor near the regulator.
Route the ICSPDAT/ICSPCLK pins (RB7/RB6, available only when not used as GPIO) to a 0.1 inch-pitch in-circuit programming header so the firmware can be re-flashed after PCB assembly. Keep the ICSP traces under 50 mm and free of capacitor loading to meet the ICD timing budget. The MCLR pin (pin 1) requires a 10 kohm pull-up to VDD plus a 100 nF to ground for the standard ICSP reset path; do not tie MCLR directly to VDD or ICD access is impossible. Place the 20 MHz crystal (if used) within 5 mm of pins 7-8 and guard both sides with a ground ring.
Do not enable the ADC and AUSART simultaneously without checking that the FOSC/4 clock does not exceed the ADC acquisition timing budget at 25 MHz; for high-impedance sensor sources, add an external op-amp buffer. The 10-bit ADC reference defaults to VDD/VDD-VSS - for absolute accuracy, drive VREF+ and VREF- with low-noise references instead. Configuration bits FOSC, WDT, BOR and LVP must be set in code or in the XC8 fuses - leaving them at factory defaults locks the device into RC oscillator mode with watchdog off and may complicate field debugging. Finally, the EEPROM endurance is rated 100 k cycles per byte - use wear-leveling (moving the write pointer) for parameter storage that is rewritten frequently.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. AEC-Q100 qualified by the -H temperature grade designation (automotive qualification). Halogen-free status not stated in the verified web data.
