PIC16C622A-04E/P - 4MHz 8-Bit CMOS MCU, 3.5KB OTP | Microchip
MPN: PIC16C622A-04E/P ✗ Cuối đờiPIC16C622A-04E/P Tóm tắt
A microcontroller (MCU) is a single-chip computer that contains a CPU core, program and data memory, peripherals, and I/O on a single die. MCUs are the smallest members of the embedded computing hierarchy (microcontroller -> microprocessor -> SoC -> computer) and are used wherever deterministic, low-cost, low-power control is needed. The PIC16C family uses a RISC Harvard architecture with a 14-bit instruction word optimized for compact code density, an approach Microchip introduced in the 1970s and that remains popular in cost-sensitive 8-bit designs.
Key features include a fully static design for low-power operation, wide 2.5 V-6.0 V supply range, internal watchdog timer, power-on reset, brown-out reset, and two analog comparators with programmable reference. Power consumption is typically 15 µA at 5 V/4 MHz and as low as 1 µA at 3 V/32 kHz, making this part well-suited to battery-backed industrial controllers.
The architecture pairs a 13-bit program counter with hardware multiply support and a 14-bit-wide EPROM/ROM store, giving the device a code-density advantage over 8-bit-worded CISC alternatives. The two on-chip analog comparators can be configured as a single differential amplifier, a window comparator, or as general-purpose logic gates via the TRIS registers, reducing the need for external analog components.
Typical applications include appliance control (washing machines, microwave ovens), industrial sensor interfaces, automotive body electronics (pre-CAN nodes), battery chargers, and remote controls. Designers choose the PIC16C622A when they need more on-chip analog capability than the PIC16C620/621 provide while staying within the 18-pin PDIP footprint.
When designing with the PIC16C622A-04E/P, remember that the OTP memory is one-time-programmable only - firmware cannot be field-updated. Use an ICSP header for programming and reserve a window in the code for calibration constants. Place a 0.1 µF decoupling capacitor within 5 mm of VDD, and provide a 100 nF plus 10 µF bulk cap on the analog AVss rail if the comparators are enabled.
This page synthesizes real-time distributor pricing, drop-in replacement analysis, and practical PCB design notes not found in the standalone datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16C622A-04E/P — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C622A-04E/P (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Type, RoHS Status, Program Memory Size, Operating Temperature.
PIC16C622-04E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C622-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C622-20E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C622A/JW
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F630-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C622A-04E/P Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit CMOS Microcontroller |
| Series | PIC16C |
| Core Architecture | RISC Harvard (14-bit instruction word) |
| Program Memory Type | EPROM (OTP - One-Time-Programmable) |
| Program Memory Size | 3.5 KB (2 K x 14) |
| RAM Size | 128 x 8 bytes |
| EEPROM Data Memory | None (uses EPROM program memory) |
| Maximum CPU Speed | 4 MHz |
| Instruction Cycle Time | 1 µs at 4 MHz |
| Number of I/O Pins | 13 |
| Supply Voltage (VDD) | 2.5 V to 6.0 V |
| Nhiệt độ hoạt động | -40 °C to +125 °C (Extended "E" grade) |
| Hộp | 18-pin PDIP (Through-Hole, 0.300" / 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
| On-chip Peripherals | 2 analog comparators, WDT, Power-On Reset, Brown-Out Reset |
| Typical Active Current (5 V, 4 MHz) | 15 µA |
| Typical Sleep Current (3 V, 32 kHz) | 1 µA |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16C622A-04E/P
| Chân 1 | RA2/AN2 — Bidirectional I/O / analog comparator input |
| Chân 2 | RA3/AN3 — Bidirectional I/O / analog comparator input |
| Chân 3 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input |
| Chân 4 | MCLR — Master Clear (reset) input, active-low |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| Chân 7 | RB1 — Bidirectional I/O |
| Chân 8 | RB2 — Bidirectional I/O |
| Chân 9 | RB3 — Bidirectional I/O |
| Chân 10 | RB4 — Bidirectional I/O |
| Chân 11 | RB5 — Bidirectional I/O |
| Chân 12 | RB6 — Bidirectional I/O / ICSP clock |
| Chân 13 | RB7 — Bidirectional I/O / ICSP data |
| Chân 14 | VDD — Positive supply (2.5 V to 6.0 V) |
| Chân 15 | OSC2/CLKOUT — Crystal/ceramic resonator output or clock out |
| Chân 16 | OSC1/CLKIN — Crystal/ceramic resonator input or external clock |
| Chân 17 | RA0/AN0 — Bidirectional I/O / analog comparator input |
| Chân 18 | RA1/AN1 — Bidirectional I/O / analog comparator input |
Ứng dụng tiêu biểu
PIC16C622A-04E/P phù hợp cho 6 Áp dụngs: Appliance Control (Washing Machines, Microwaves), Industrial Sensor Interface Nodes, Battery Chargers and Power Management, Remote Control and IR Transmitter / Receiver, Automotive Body Electronics (Pre-CAN Nodes), Educational and Hobby Electronics (Through-Hole Prototyping).
Appliance Control (Washing Machines, Microwaves)
The PIC16C622A-04E/P is well suited to white-goods control boards thanks to its 4 MHz CPU, 13 general-purpose I/O lines rated at 25 mA sink, and on-chip dual analog comparators that can replace a window-comparator op-amp for water-level or door-latch sensing. The 3.5 KB OTP program memory holds modest user-interface firmware, while 128 bytes of RAM is sufficient for keypad debounce and timer arrays. The wide 2.5 V-6.0 V supply range lets the part run directly from a rectified 5 V transformer rail without a separate LDO. Industrial designers value the extended -40 °C to +125 °C operating range for unheated garage and laundry-room installations. Companion parts include the PIC16F630-I/P for new designs needing Flash reprogrammability.
Được đề xuất
Industrial Sensor Interface Nodes
In 4-20 mA loop-powered sensor transmitters, the PIC16C622A-04E/P runs on as little as 15 µA at 5 V/4 MHz, enabling loop-power budgets below 3 mA when paired with a micropower op-amp front end. The two on-chip comparators can be configured as a window discriminator for alarm thresholds, eliminating one external IC. The 13 digital I/Os multiplex keypad, LED status, HART modem handshake, and EEPROM emulation (firmware stores calibration constants in program memory). The 4 MHz clock minimizes radiated EMI in noise-sensitive process-control cabinets. According to Microchip's industrial reference designs, this combination delivers a complete loop-powered smart sensor in less than 4 cm² of PCB.
Được đề xuất
Battery Chargers and Power Management
The PIC16C622A-04E/P is a good fit for low-rate NiMH and lead-acid charger controllers where the MCU monitors charge current via the on-chip comparator and drives MOSFET gates through its 25 mA I/O pins. The 2.5 V-6.0 V supply range accepts direct connection to a 4-cell NiMH stack or a 6 V SLA pack without level shifting. The watchdog timer and brown-out reset protect against battery sag during peak load transients. At 1 µA sleep current with the 32 kHz Timer1 oscillator running, the part preserves battery life during storage between charge cycles. The 3.5 KB program memory stores CC-CV charge profiles for multiple battery chemistries selectable via jumper.
Được đề xuất
Remote Control and IR Transmitter / Receiver
For consumer remote controls, the PIC16C622A-04E/P's 4 MHz instruction rate can bit-bang standard RC5, NEC, or Sony IR protocols without hardware timers. The 1 µA sleep current lets coin-cell remotes last 2+ years on a single CR2032 battery. The two analog comparators can implement a low-battery detector, signalling the MCU to flash a red LED before shutdown. Extended temperature operation prevents lock-up in vehicles parked in summer sun. The 18-pin PDIP package suits through-hole hobbyist builds and educational kits where users may swap chips frequently without surface-mount rework.
Được đề xuất
Automotive Body Electronics (Pre-CAN Nodes)
In pre-CAN automotive body modules - mirror controls, seat-position memory, simple lighting nodes - the PIC16C622A-04E/P delivers the 13 I/Os and dual comparators needed to drive small relay coils and read potentiometer positions. The extended -40 °C to +125 °C temperature grade survives under-dash and door-panel thermal environments. However, this part is NOT AEC-Q100 qualified - automotive OEMs should select AEC-Q100-grade Flash parts such as PIC16F1823-I/P instead. Use the PIC16C622A only for non-safety automotive accessories (aftermarket alarms, LED accent strips) where AEC-Q100 is not mandated.
Được đề xuất
Educational and Hobby Electronics (Through-Hole Prototyping)
The PIC16C622A-04E/P in 18-pin PDIP remains popular in university microcontroller courses and DIY Maker projects because the through-hole footprint accepts standard 0.1" headers and breadboard sockets. The 4 MHz instruction rate is fast enough to teach assembly language concepts without overwhelming beginners, while the 3.5 KB OTP EPROM forces students to plan code size carefully. The PICkit 2/3 programmer interface (ICSP on RB6/RB7) lets instructors re-flash demo boards between lab sessions. Although the EPROM/OTP technology is now considered legacy, its simplicity is pedagogically valuable for understanding the distinction between volatile and non-volatile memory. Hobbyists should note that Microchip marks this part NRND.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C622A-04E/P — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C622-04E/P | PIC16C622-04/P | PIC16C622-20E/P | PIC16C622A/JW | PIC16F630-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-18 (through-hole) | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | CDIP-18 (windowed) - same footprint | PDIP-18 - same |
| Program Memory | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (windowed, UV-erasable) | 1.75 KB Flash (reprogrammable) |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 20 MHz |
| Temperature Grade | Extended (-40 °C to +125 °C) | Extended | Commercial (0 to +70 °C) | Extended | Extended (windowed) | Industrial (-40 °C to +85 °C) |
| ADC | None (2 analog comparators only) | None | None | None | None | 10-bit ADC |
| Reprogrammability | No (OTP EPROM) | No (OTP) | No (OTP) | No (OTP) | Yes (UV-erase window) | Yes (Flash) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | Active |
Bảo phân biệt quan trọng
- Latest silicon revision ('A') with improved analog comparators (vsPIC16C622-04E/P (pre-'A' mask set))
- Reprogrammable Flash memory with 10-bit ADC upgrade (vsPIC16F630-I/P)
- Extended -40 °C to +125 °C operating range versus industrial -40 °C to +85 °C (vsPIC16F630-I/P (Industrial grade))
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14) and a 10 µF bulk capacitor on the same node if the supply traces are longer than 25 mm. For battery-powered designs, use the 1 µA sleep mode by switching to the 32 kHz Timer1 oscillator and gating the main oscillator; the brown-out reset must be enabled to prevent code execution at VDD below 2.0 V. Estimated: at VDD=5 V and 4 MHz active mode the part draws 15 µA per Microchip's datasheet typical curve; sleep current drops to <1 µA when the WDT is disabled.
OTP EPROM memory can be programmed only once. Designers must use the PIC16C622A/JW windowed CERDIP variant during firmware development and switch to the PIC16C622A-04E/P only for production - the JW ceramic package is not recommended for production due to cost. The MCLR pin (pin 4) cannot be left floating; tie it to VDD through a 10 kΩ resistor for normal operation, or drive it low externally to reset. For ICSP programming, ensure the RB6/RB7 lines are not loaded with heavy capacitance - this slows programming and may fail verification.
At maximum VDD=6.0 V and 4 MHz, the PIC16C622A-04E/P consumes less than 50 mW (estimated from 15 µA active current plus I/O drive), so thermal management is rarely needed in PDIP-18 designs. The thermal resistance θJA for PDIP-18 is approximately 70 °C/W per JEDEC EIA/JESD51 standards, meaning the junction rises only ~3.5 °C above ambient in typical applications. Designers can ignore thermal analysis unless driving multiple high-current loads simultaneously.
Thông tin tuân thủ
RoHS compliance per Microchip product declaration. Not AEC-Q100 qualified; automotive designs should use AEC-Q100-grade Flash parts (PIC16F1823-I/P family). Conflict-minerals compliance declared per Microchip CMRT filings.
