PIC16C622-04E/SS - 4MHz 8-bit CMOS EPROM MCU, 20-SSOP | Microchip
MPN: PIC16C622-04E/SS ✗ اختتامِ زندگیPIC16C622-04E/SS جائزہ
An 8-bit CMOS microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripheral I/O into one package. The PIC16C family uses a RISC-based Harvard architecture with a 14-bit instruction word, providing deterministic instruction timing of one instruction per clock cycle (except branches). EPROM-based variants such as the PIC16C622 support one-time or windowed reprogrammability, making them well suited for low-volume and prototyping applications where Flash re-programmability is unnecessary.
Key features include fully static design (allowing clock stopping), 15 µA typical supply current at 5 V / 4 MHz, and 1 µA typical at 3 V / 32 kHz. The device also supports power-saving SLEEP mode, a watchdog timer, and a programmable code-protection feature on program memory. Its compact 20-pin SSOP footprint is pin-compatible with several siblings in the PIC16C62x family, simplifying board layout reuse across speed grades and temperature ranges.
The PIC16C622-04E/SS is widely deployed in legacy industrial controllers, appliance controls, automotive body modules, and instrumentation front-ends that benefit from its mature PIC instruction set and broad third-party toolchain support. The EPROM cell technology and 4 MHz instruction throughput are adequate for control-loop and interface-bridging tasks rather than compute-intensive signal processing.
When designing with this part, place a 0.1 µF decoupling capacitor close to the VDD pin and follow Microchip's recommended oscillator layout to minimize EMI. Engineers should also confirm code-protection programming settings before volume production, as the EPROM window cannot be un-protected after sealing.
This page synthesizes distributor pricing, drop-in PIC16C6xx alternatives, and practical design notes not found in the standalone manufacturer datasheet.
کے لیے ڈراپ اِن متبادل PIC16C622-04E/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 PIC16C622-04E/SS (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Architecture, Package, Program Memory Size, Program Memory Type, RoHS Status.
PIC16C622-04/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C622-04I/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C621-04/SS
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C620-04/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C621A-20E/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C621-20E/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C622-04E/SS زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Family | PIC16C6xx |
| Core Architecture | 8-bit RISC (Harvard) |
| Instruction Word | 14-bit |
| Program Memory Type | EPROM (OTP/windowed) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes |
| Number of I/O Pins | 13 |
| CPU Speed (Max) | 4 MHz |
| Operating Voltage Range | 3.0 V to 6.0 V |
| Supply Current (Typ @ 5 V, 4 MHz) | 15 µA |
| Supply Current (Typ @ 3 V, 32 kHz) | 1 µA |
| Oscillator Type | External |
| پیکیج | 20-SSOP (0.209 in / 5.30 mm width) |
| آپریٹنگ درجہ حرارت رینج | -40 °C to +125 °C (Extended) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Packaging | Tube |
PIC16C622-04E/SS پن کنفیگریشن
| پن 1 | RA2 — Bidirectional I/O port A bit 2 |
| پن 2 | RA3 — Bidirectional I/O port A bit 3 |
| پن 3 | RA4 — Bidirectional I/O port A bit 4 (open-drain option) |
| پن 4 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Bidirectional I/O port B bit 0 / external interrupt |
| پن 7 | RB1 — Bidirectional I/O port B bit 1 |
| پن 8 | RB2 — Bidirectional I/O port B bit 2 |
| پن 9 | RB3 — Bidirectional I/O port B bit 3 |
| پن 10 | RB4 — Bidirectional I/O port B bit 4 |
| پن 11 | RB5 — Bidirectional I/O port B bit 5 |
| پن 12 | RB6 — Bidirectional I/O port B bit 6 |
| پن 13 | RB7 — Bidirectional I/O port B bit 7 |
| پن 14 | VDD — Positive supply voltage |
| پن 15 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| پن 16 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| پن 17 | RA0 — Bidirectional I/O port A bit 0 |
| پن 18 | RA1 — Bidirectional I/O port A bit 1 |
| پن 19 | RA5 — Bidirectional I/O port A bit 5 |
| پن 20 | RA7 — Bidirectional I/O port A bit 7 |
عام استعمالات
PIC16C622-04E/SS کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Appliance Control, Automotive Body Electronics (Legacy), Remote Sensor Front-Ends, Smart Meter and Utility Modules, User-Interface and Keypad Controllers, Test and Measurement Front-Ends.
Industrial Appliance Control
The PIC16C622-04E/SS is well suited to industrial appliance controllers such as washing-machine front-panels, dishwasher timers, and HVAC thermostats. Its 4 MHz MIPS throughput is adequate for relay and triac sequencing, while the 13 digital I/O pins comfortably drive 7-segment displays, keypads, and indicator LEDs. The Extended -40 to +125 °C temperature grade survives under-cabinet thermal stress, and the 3.0-6.0 V supply range tolerates rectified mains-rail voltages after bulk regulation. EPROM program memory also provides excellent resistance to soft-errors in high-EMI motor environments, an important consideration when triac zero-cross circuits are nearby.
تجویز کردہ
Automotive Body Electronics (Legacy)
Legacy automotive body-control modules - including central-locking, mirror-adjustment, and seat-controller ECUs - often rely on the PIC16C622-04E/SS for its proven reliability and Extended temperature range. The 4 MHz CPU easily handles LIN-style slave protocols, PWM-driven mirror motors, and switch-matrix scanning, while the 20-SSOP footprint fits the small PCB area behind door trim panels. Engineers should note that AEC-Q100 qualification is not held by this part, so it is typically used in modules qualified at the system level. For new automotive platforms, Microchip recommends migrating to AEC-Q100-qualified PIC16F or PIC18F devices with the same SSOP-20 footprint.
تجویز کردہ
Remote Sensor Front-Ends
The PIC16C622-04E/SS fits remote sensor-interface nodes that read a small number of analog or digital sensors and forward data over UART or SPI to a host controller. The PIC16C622's internal comparator and voltage reference simplify threshold-detection circuits for battery-voltage monitoring and overtemperature alarms. Operating at 15 µA typical at 4 MHz/5 V, the device stays comfortably within the power budget of solar- or battery-powered wireless nodes. Its EPROM cell and 20-SSOP package also tolerate conformal coating and potting compounds used in outdoor sensor enclosures.
تجویز کردہ
Smart Meter and Utility Modules
Smart electricity, water, and gas-meter sub-assemblies have used the PIC16C622-04E/SS for tariff display drivers, button-input scanning, and low-speed optical-port communication. The 13 I/O pins multiplex segmented-LCD or LED display rows, optical UART pins, and tamper-detection switches, while the 128-byte RAM buffers calibration constants and recent-meter-read snapshots. The 3.0-6.0 V supply range is compatible with single-cell lithium-thionyl-chloride battery chemistries common in utility meters, and EPROM program memory ensures that firmware cannot be altered after meter sealing.
تجویز کردہ
User-Interface and Keypad Controllers
Elevator panels, security keypads, and access-control readers rely on the PIC16C622-04E/SS for matrix keypad scanning, LED or 7-segment display refresh, and buzzer or relay actuation. The PIC's deterministic instruction timing simplifies debounce and multiplex routines, eliminating the jitter visible with timer-heavy architectures. The 13 I/O pins easily handle a 4x4 keypad (8 lines) plus a few status LEDs and a relay driver. Because the part is fully static, the firmware can halt the oscillator during long idle periods, drawing only microamp-level standby current to preserve battery life in wireless access-control fobs.
تجویز کردہ
Test and Measurement Front-Ends
Bench-top test instruments, hand-held multimeters, and laboratory data-loggers often use the PIC16C622-04E/SS to perform range-selection switching, ADC handshaking, and LCD display driving. The PIC16C622's internal comparator is useful for autoranging threshold detection on the analog front-end, and the 4 MHz CPU keeps up with continuous ADC sampling rates up to a few kilosamples per second. The Extended temperature rating protects the part when the instrument is used in non-climate-controlled field environments, and the EPROM cell ensures calibration firmware cannot be accidentally erased by the user.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C622-04E/SS — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C622-04/SS | PIC16C622-04I/SS | PIC16C621-04/SS | PIC16C620-04/SS | PIC16C621A-20E/SS | PIC16C621-20E/SS |
|---|---|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 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 | Microchip Technology |
| Program Memory | 3.5 KB EPROM (2K x 14) | 3.5 KB EPROM | 3.5 KB EPROM | 3.5 KB EPROM | 512 x 14 EPROM (lower) | 3.5 KB EPROM | 3.5 KB EPROM |
| RAM Size | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| CPU Speed (Max) | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz (faster) | 20 MHz (faster) |
| Temperature Grade | Extended (-40 to +125 °C) | Commercial (0 to +70 °C) | Industrial (-40 to +85 °C) | Commercial (0 to +70 °C) | Commercial (0 to +70 °C) | Extended (-40 to +125 °C) | Extended (-40 to +125 °C) |
| Number of I/O | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Internal Voltage Reference | Yes | Yes | Yes | No (omitted) | Yes | No (omitted) | No (omitted) |
اہم امتیازی خصوصیات
- Extended temperature range (-40 to +125 °C) versus the commercial PIC16C622-04/SS counterpart (بمقابلہPIC16C622-04/SS)
- Internal band-gap voltage reference for on-chip comparator threshold generation (بمقابلہPIC16C621-04/SS)
- Mature EPROM technology with 3.5 KB program memory and 128 bytes RAM, fully static design (بمقابلہPIC16C620-04/SS)
ڈیزائن نوٹس
Place a 0.1 µF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14) and a bulk capacitor (e.g., 10 µF tantalum or ceramic) near the IC supply entry. The PIC16C622-04E/SS draws 15 µA typical at 5 V/4 MHz, but brief inrush spikes during oscillator startup can reach several milliamps - the local bulk capacitor prevents VDD sag that would otherwise reset the device via brown-out. Tie the MCLR pin (pin 4) to VDD through a 10 kΩ resistor and add a 100 nF cap to ground for noise-immune reset behavior in industrial control panels.
The PIC16C622-04E/SS relies on an external clock source fed into OSC1/CLKIN (pin 16) or a crystal across OSC1/OSC2 (pints 15-16). Choose a crystal with low equivalent series resistance (ESR < 50 Ω) and add 15-22 pF load capacitors on each oscillator pin to ground to maintain stable oscillation across the -40 to +125 °C operating range. Routing the crystal traces short and symmetric, and guarding them with a ground ring, prevents EMI pickup that can degrade UART timing in noisy motor-control environments.
Do not assume that EPROM code protection can be reversed - once the code-protection fuse is programmed and the device is sealed (no window), the program memory cannot be read or rewritten. For prototype and pre-production units, order the JW (windowed) ceramic package variant or use a Flash-based PIC16F equivalent for in-circuit reprogrammability. Also note that the PIC16C622's internal voltage reference differs from the PIC16C621's - if your firmware depends on the band-gap reference, do not silently swap to PIC16C621 without re-tuning the comparator thresholds.
The 20-SSOP package has a 0.65 mm lead pitch, so PCB layout should use 0.30-0.40 mm wide traces between pads and a single ground pour on the top layer under the IC body. Keep digital switching traces (RB ports driving LEDs or relays) away from the analog-sensitive RA0/RA1 pins used for comparator inputs, since the PIC16C622 shares a single VDD/VSS and cannot isolate digital noise from analog references. A ferrite bead on VDD plus the local 0.1 µF cap is often necessary to keep ADC and comparator measurements stable in motor-control and HVAC designs.
تعمیل کی معلومات
RoHS, lead-free, and halogen-free status were not directly stated in the verified web data; PIC16C EPROM parts from Microchip historically predate many of these compliance programs. AEC-Q100 qualification is not held by this part - Microchip recommends PIC16F or PIC18F AEC-Q100-qualified parts for new automotive designs.
