PIC16C620-04I/SS - 8-bit EPROM MCU, 896B, 13 I/O, SSOP-20 | Microchip
MPN: PIC16C620-04I/SS ✗ اختتامِ زندگیPIC16C620-04I/SS جائزہ
Background: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (ROM/EPROM/Flash), I/O peripherals and often analog blocks. PIC microcontrollers use a Harvard architecture with separate program and data buses and a RISC instruction set, which enables deterministic instruction timing and very low power consumption. Within the PIC family, the PIC16C62x sits in the mid-range 14-bit instruction group, positioned between base-line PIC10/12/14 and enhanced mid-range PIC16F1xxx devices, and is historically used where simple control loops, comparator-based sensing, and OTP (one-time programmable) memory are acceptable.
Key features: 4 MHz oscillator input with 1 us instruction cycle; 35 single-word instructions; 8-bit timer/counter (TMR0) with 8-bit prescaler; watchdog timer with on-chip RC oscillator for reliable reset; programmable code protection; in-circuit serial programming (ICSP) via RB6/RB7; two on-chip analog comparators with programmable reference; power-on reset and brown-out detection.
Technical depth: The PIC16C620 implements a 14-bit instruction word with 8-bit data path, two file-select registers (FSR) for memory access, a 16-level hardware stack, and direct/indirect addressing. The 13 I/O pins share four ports (PORTA 5 pins, PORTB 8 pins) with individual direction control. The on-chip EPROM is one-time-programmable (OTP) at production time, making this part suitable for low-volume mature designs rather than field-upgradable products.
Typical applications: appliance control boards, security alarm panels, sensor signal conditioning with on-board comparators, automotive interior modules (non-safety), and simple motor-control glue logic. The wide 3-6V supply range and low power make it tolerant of unregulated rails in industrial environments.
Design consideration: Because the part is OTP EPROM (not Flash), firmware must be committed at programming time and cannot be re-flashed in application - select this device only for mature firmware with very low revision risk.
This page synthesizes current distributor pricing, verified drop-in alternatives from Microchip and competitors, and practical design notes compiled from public datasheets and reference designs - information engineers will not find in a single source elsewhere.
کے لیے ڈراپ اِن متبادل PIC16C620-04I/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 PIC16C620-04I/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, RoHS Status, Core Architecture, Program Memory Type, RAM Size.
PIC16F628A-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F648A-I/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620A-04I/SS
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620-04/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620T-04I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C620-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620-04I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620-04I/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Program Memory Type | EPROM (OTP) |
| Program Memory Size | 896 bytes (0.875 KB) |
| RAM Size | 80 bytes |
| EEPROM Size | 0 bytes (none on chip) |
| CPU Core | PIC16 / 14-bit RISC |
| CPU Architecture | 8-bit Harvard |
| Number of I/O Pins | 13 |
| Supply Voltage Range | 3.0 V to 6.0 V |
| Typical Operating Voltage | 5.0 V |
| زیادہ سے زیادہ کلاک فریکوئنسی | 4 MHz ("-04" speed grade) |
| Instruction Cycle Time | 1 us @ 4 MHz |
| آپریٹنگ درجہ حرارت رینج | -40 C to +85 C (Industrial) |
| پیکیج | SSOP-20 (5.3 mm body, 0.65 mm pitch) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| On-chip Comparators | 2 (with programmable reference) |
| Timers | 1 x 8-bit (TMR0) + WDT |
| A/D Converter | None (uses comparators) |
| In-Circuit Programming | ICSP (RB6/RB7) |
| Code Protection | Programmable |
| MSL لیول | 1 (unlimited floor life) |
PIC16C620-04I/SS پن کنفیگریشن
| پن 1 | RA2 — PORTA bit 2 (bidirectional digital I/O; analog comparator input) |
| پن 2 | RA3 — PORTA bit 3 (bidirectional digital I/O; also /MCLR alternative) |
| پن 3 | RA4 — PORTA bit 4 (bidirectional digital I/O; open-drain option) |
| پن 4 | /MCLR — Master Clear (reset) input; tied to VDD through resistor |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0 — PORTB bit 0 (interrupt-on-change capable) |
| پن 7 | RB1 — PORTB bit 1 (interrupt-on-change capable) |
| پن 8 | RB2 — PORTB bit 2 (interrupt-on-change capable) |
| پن 9 | RB3 — PORTB bit 3 (interrupt-on-change capable; low-voltage programming) |
| پن 10 | RB4 — PORTB bit 4 (interrupt-on-change capable) |
| پن 11 | RB5 — PORTB bit 5 (interrupt-on-change capable) |
| پن 12 | RB6 — PORTB bit 6 (ICSP clock) |
| پن 13 | RB7 — PORTB bit 7 (ICSP data) |
| پن 14 | VSS — Ground reference (second ground pin) |
| پن 15 | OSC2 — Oscillator output; RC or crystal connection |
| پن 16 | OSC1 — Oscillator input; RC or crystal connection |
| پن 17 | RA0 — PORTA bit 0 (analog comparator input) |
| پن 18 | RA1 — PORTA bit 1 (analog comparator input) |
| پن 19 | VSS — Ground reference (third ground pin) |
| پن 20 | VDD — Positive supply (3.0-6.0 V) |
عام استعمالات
PIC16C620-04I/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Appliance Control Board, Security Alarm Panel, Industrial Sensor Signal Conditioning, Automotive Interior Module (Non-Safety), Battery Charger Control Logic, Simple Motor Control / PWM Driver.
Appliance Control Board
The PIC16C620-04I/SS fits appliance control boards where a sealed firmware, low-cost 8-bit controller drives relays, triacs, and indicator LEDs. The 896 bytes of OTP EPROM is sufficient for a fixed motor-sequence or heater-control algorithm, while the 13 I/O pins comfortably cover keypad scanning, status LEDs, and zero-cross detect. The on-chip analog comparators eliminate an external op-amp for temperature threshold detection via an NTC thermistor. Operating from a rectified 5 V supply, the device tolerates the wide 3.0-6.0 V range typical of unfiltered mains-derived rails.
تجویز کردہ
Security Alarm Panel
The PIC16C620-04I/SS is well-suited to security alarm panels that require a sealed, code-protected firmware image plus simple analog sensing. The two on-chip comparators with programmable reference allow direct threshold detection on PIR sensor outputs and reed-switch debouncing without external analog ICs. The 13 I/O lines support keypad matrix, zone LEDs, and siren drivers, while the watchdog timer ensures reliable reset under ESD or power glitches common in alarm installations. Industrial -40 to +85 C operation tolerates garage and attic environments.
تجویز کردہ
Industrial Sensor Signal Conditioning
For industrial sensor signal conditioning front-ends, the PIC16C620-04I/SS offers two on-chip analog comparators with programmable reference, useful for threshold detection on 4-20 mA loop signals or thermistor bridges. Its 4 MHz instruction rate handles 1 ms loop times for closed-loop heater control, and the wide 3.0-6.0 V supply tolerance allows direct connection to 24 V-rectified rails via a dropping resistor. The 80-byte RAM is sufficient for simple FIR filters; code protection prevents cloning of proprietary calibration tables.
تجویز کردہ
Automotive Interior Module (Non-Safety)
Within non-safety automotive interior modules such as seat heaters, mirror adjusters, and lighting controllers, the PIC16C620-04I/SS provides cost-effective logic control. Its -40 to +85 C industrial temperature rating covers most cabin environments, and the watchdog timer plus brown-out reset protect against cranking transients when paired with an external TVS. OTP EPROM suits the high-volume cost targets typical of these applications where firmware is fully qualified and frozen.
تجویز کردہ
Battery Charger Control Logic
In small battery charger designs - particularly for sealed lead-acid and NiMH packs - the PIC16C620-04I/SS implements charge state machine, timer, and termination logic. The on-chip comparators directly sense battery voltage against an internal reference, eliminating an external voltage monitor IC. With 13 I/O pins, the MCU handles MOSFET gate drive, LED status indication, and temperature sensor input. The 4 MHz clock supports accurate timing for CC-CV transition without an external RTC.
تجویز کردہ
Simple Motor Control / PWM Driver
For brushed DC motor speed control or stepper sequencing in low-power applications, the PIC16C620-04I/SS generates PWM or step patterns using the TMR0 timer plus firmware. The 4 MHz clock supports 8-bit PWM at reasonable repetition rates for motor control, and the 13 I/O lines drive direction logic, enable, and fault feedback. Watchdog timer ensures recovery from stall-induced firmware hang. Code protection prevents unauthorized cloning of proprietary motor tuning tables in white-goods and HVAC equipment.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C620-04I/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F628A-I/SS | PIC16F648A-I/SS | PIC16C620A-04I/SS | PIC16C620-04/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Program Memory Type | OTP EPROM (896 B) | Flash (1024 words) | Flash (1024 words) | OTP EPROM (896 B) | OTP EPROM (896 B) |
| Program Memory Size | 896 bytes | 2048 bytes | 2048 bytes | 896 bytes | 896 bytes |
| RAM Size | 80 bytes | 224 bytes | 256 bytes | 80 bytes | 80 bytes |
| Max Clock Frequency | 4 MHz | 20 MHz | 20 MHz | 20 MHz | 4 MHz |
| Supply Voltage | 3.0-6.0 V | 2.0-5.5 V | 2.0-5.5 V | 3.0-6.0 V | 3.0-6.0 V |
| Temperature Range | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | 0 to +70 C (Commercial) |
| On-chip EEPROM | None | 128 bytes | 128 bytes | None | None |
| USART | No | Yes (hardware) | Yes (hardware) | No | No |
| Lifecycle | Obsolete | Active | Active | Obsolete | Obsolete |
اہم امتیازی خصوصیات
- On-chip dual comparators with programmable reference (بمقابلہPIC16C620-04I/SO)
- Pin-compatible Flash upgrade path (بمقابلہPIC16F628A-I/SS)
- Industrial temperature range (بمقابلہPIC16C620-04/SS)
ڈیزائن نوٹس
PIC16C620-04I/SS uses OTP EPROM - firmware is committed at programming time and cannot be rewritten. Do not select this part for new designs with any expected firmware revision; use the Flash-based PIC16F628A-I/SS or PIC16F648A-I/SS instead. Code-protect bits, once programmed, prevent re-reading the EPROM image, which is desirable for IP protection but creates a hard brick if firmware bugs are found post-release.
VDD must be decoupled with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin (pin 20) plus a bulk 10 uF tantalum or aluminum at the supply entry. The PIC16C620 brown-out reset is factory-trimmed; verify the BOR trip voltage in the datasheet against the minimum regulator tolerance. For 5 V designs powered from a 7805 or similar, the wide 3.0-6.0 V tolerance allows direct connection without an LDO. Add a reverse-polarity protection diode at the bulk input.
OSC1/OSC2 traces should be short and isolated from switching signals; with a crystal oscillator, keep ground plane intact beneath the crystal and load capacitors, and place a guard ring around the oscillator area. The /MCLR pin (pin 4) requires a 10 kohm pull-up to VDD and a 100 nF cap to ground for in-circuit programming; ensure the ICSP connector (RB6/RB7 + /MCLR + VDD + VSS) does not share pins with loads that would prevent clean programming.
تعمیل کی معلومات
RoHS and REACH status not confirmed in the provided verified web data; the SSOP-20 package is generally available in both lead-free and lead-containing finishes depending on date code. Microchip publishes material compliance data on its product page. AEC-Q100 is not applicable - PIC16C620 is not qualified for automotive safety applications; use PIC16F628A-I/SS automotive-grade variants if required.
