PIC16C622AT-20E/SS - 8-Bit 20MHz OTP MCU 3.5KB | Microchip
MPN: PIC16C622AT-20E/SS ✓ AktifPIC16C622AT-20E/SS Ringkasan
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, peripherals, and I/O on one die, executing one byte (8 bits) per instruction. MCUs sit in the embedded system hierarchy above discrete logic and below SoCs/MPUs, and the PIC16C family is the classic mid-range OTP branch of Microchip's PIC portfolio. PIC16C devices use a RISC-like instruction set, Harvard memory architecture, and are ideal for cost-sensitive, small-form-factor, brown-out-tolerant embedded control where code is finalized at firmware release and not field-updatable.
Key features include a 20MHz maximum clock speed, 13 digital I/O pins, an internal timer/counter, watchdog timer, power-on reset, and an operating voltage range compatible with both 3.3V and 5V rails. The 20-pin SSOP (5.30 mm body width) package is the same compact surface-mount footprint used across the PIC16C62x family, enabling PCB layout reuse when migrating between A-revision and non-A PIC16C devices.
The device uses Microchip's enhanced mid-range core, which adds interrupt context saving, larger linear data memory access, and improved arithmetic semantics over the baseline mid-range. OTP program memory means the firmware is permanently written at programming time and cannot be erased, lowering unit cost versus flash equivalents for high-volume, code-final products.
Typical applications include low-cost consumer appliances, white-goods control boards, simple sensor interfaces, replacement of discrete logic glue, and brown-goods remote-control units where the 3.5KB code space, 13 I/Os, and 20MHz clock cover the firmware footprint without flash overhead.
When designing with this part, note that OTP memory cannot be re-programmed, so firmware must be fully validated before production programming. Because the PIC16C family is mature, confirm long-term supply with your distributor before committing to a multi-year design.
This page synthesizes distributor pricing, same-package drop-in alternatives from the PIC16C family, and practical OTP design considerations not consolidated in the manufacturer datasheet.
Alternatif penggantian untuk PIC16C622AT-20E/SS — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC16C622AT-20E/SS (sama faktor bentuk dan footprint) — berbeda di dalam Instruction Set, Program Memory Size, Program Memory Type, Watchdog Timer, Analog Comparators.
PIC16C622A-20E/SS
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC16C621A-20E/SS
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC16C620A-20E/SS
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC16C622-20E/SS
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC16C622AT-20E/SS Rating Maksimal & Karakteristik Listrik
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Program Memory Size | 3.5 KB (2K x 14) OTP |
| RAM Size | 128 x 8 bytes |
| Number of I/O Pins | 13 |
| Frekuensi Bawah Maximum | 20 MHz |
| Instruction Set Width | 14-bit |
| Operating Voltage Range | 3.0 V to 5.5 V |
| Paket / Case | 20-SSOP (5.30 mm body width) |
| Tipe Mounting | Surface Mount |
| Rentang Suhu Kerja | -40C to +125C (Extended 'E') |
| Program Memory Type | OTP (One-Time Programmable) |
| Number of Timers | 1 x 8-bit |
| Watchdog Timer | Yes |
| Power-On Reset | Yes |
| Brown-Out Reset | Yes |
| Level MSL | 1 (unlimited floor life) |
Konfigurasi Pin PIC16C622AT-20E/SS
| Pin produk 1 | RA2/AN2/VREF — Digital I/O / analog input / voltage reference |
| Pin produk 2 | RA3/AN3 — Digital I/O / analog input |
| Pin produk 3 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Pin produk 4 | RA5/MCLR/VPP — Digital I/O / Master Clear (reset) / VPP programming voltage |
| Pin produk 5 | VSS — Ground reference |
| Pin produk 6 | RB0/INT — Digital I/O / external interrupt |
| Pin produk 7 | RB1 — Digital I/O |
| Pin produk 8 | RB2 — Digital I/O |
| Pin produk 9 | RB3 — Digital I/O |
| Pin produk 10 | RB4 — Digital I/O |
| Pin produk 11 | RB5 — Digital I/O |
| Pin produk 12 | RB6 — Digital I/O |
| Pin produk 13 | RB7 — Digital I/O |
| Pin produk 14 | VDD — Positive supply (3.0 V to 5.5 V) |
| Pin produk 15 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin produk 16 | OSC1/CLKIN — Oscillator input / clock in |
| Pin produk 17 | RA0/AN0 — Digital I/O / analog input 0 / comparator input |
| Pin produk 18 | RA1/AN1 — Digital I/O / analog input 1 / comparator input |
| Pin produk 19 | VDD — Positive supply (redundant pin for PIC16C62x) |
| Pin produk 20 | VSS — Ground (redundant pin for PIC16C62x) |
Aplikasi Umum
PIC16C622AT-20E/SS cocok untuk 6 aplikasis: Low-Cost Consumer Appliance Control, Replacement of Discrete Logic Glue, White-Goods Sensor Interface Boards, Brown-Goods Remote Control Units, Industrial Sensor Modules, Automotive Interior Lighting Controllers.
Low-Cost Consumer Appliance Control
The PIC16C622AT-20E/SS fits low-cost consumer appliances because its 3.5KB OTP program memory covers typical state-machine control firmware (mode select, sensor polling, relay drive) without the cost overhead of flash. The 20MHz core runs at 5 MIPS, sufficient for mains-frequency zero-cross detection and triac/relay timing. With 13 I/Os and an extended -40C to +125C operating range (E suffix), the part handles appliance thermal and humidity stress. Place decoupling 100nF ceramic near VDD; use the internal brown-out reset to prevent lock-up on mains brown-outs.
Direkomendasikan
Replacement of Discrete Logic Glue
In legacy designs that use 74HC-series glue logic, the PIC16C622AT-20E/SS consolidates state machines into one 20-SSOP part, reducing PCB area and BOM count. The enhanced mid-range PIC core provides 14-bit instructions, hardware multiply support, and 128-byte RAM for stack and scratch variables. The 13 I/Os are 25 mA source/sink capable, directly driving LEDs and small relays without buffers. OTP cost is lower than flash, justified when firmware is locked at release.
Direkomendasikan
White-Goods Sensor Interface Boards
Refrigerators, washing machines, and dishwashers use PIC16C62x parts for temperature sensing, door-switch aggregation, and user-keypad scanning. The PIC16C622AT-20E/SS's on-chip analog comparator enables direct thermistor/level-sensor interfaces without an external op-amp. The 20-SSOP package (5.30 mm body) is the standard footprint across the family, simplifying second-source qualification across 621A, 622A, and 620A siblings. Brown-out reset and watchdog timer protect against motor-induced supply glitches common in white-goods.
Direkomendasikan
Brown-Goods Remote Control Units
TV, set-top box, and audio remote controls are volume-driven and cost-driven - both attributes of OTP silicon. The PIC16C622AT-20E/SS holds IR protocol stacks (RC5/RC6/NEC), keypad scanning tables, and LED blink patterns in 3.5KB OTP. The 13 I/Os drive a 5x4 keypad matrix and IR emitter directly; the 20MHz clock generates precise 38 kHz carrier without timing jitter. Sleep current is in the microamp range for battery-friendly remote operation.
Direkomendasikan
Industrial Sensor Modules
Industrial proximity, level, and photo-sensor modules use PIC16C62x MCUs in 20-SSOP because of the extended -40C to +125C operating range (E suffix) and 20MHz core. The PIC16C622AT-20E/SS supports MODBUS-RTU slave firmware in 3.5KB with interrupt-driven UART. The on-chip comparator directly digitizes analog sensor signals before UART transmission, eliminating analog front-end stages. Long-term Microchip supply continuity is favorable for industrial 7-10 year product cycles.
Direkomendasikan
Automotive Interior Lighting Controllers
Although not AEC-Q100 qualified, the PIC16C622AT-20E/SS has long been used in non-safety automotive interior accessories (ambient lighting, footwell LEDs, vanity mirrors) where cost dominates. The 13 I/Os drive PWM-controlled LED strings via firmware; the comparator monitors current-sense resistors for open-LED detection. Its 20-SSOP footprint drops into existing automotive interior PCB layouts that have used the PIC16C62x family for over a decade.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC16C622AT-20E/SS — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC16C622A-20E/SS | PIC16C621A-20E/SS | PIC16C620A-20E/SS | PIC16C622-20E/SS |
|---|---|---|---|---|---|
| Package | 20-SSOP (5.30 mm) | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 13 | 13 | 13 | 13 | 13 |
| On-chip Comparator | Yes (with Vref) | Yes | No | No | Yes |
| Memory Type | OTP | OTP | OTP | OTP | EPROM (windowed) |
| Operating Temp Range | -40C to +125C (Extended 'E') | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Diferensiator Kunci
- On-chip analog comparator with selectable voltage reference (vsPIC16C621A-20E/SS)
- A-revision silicon with enhanced mid-range core (vsPIC16C622-20E/SS (pre-A))
- Tape-and-reel packaging for high-volume SMT assembly (vsPIC16C622A-20E/SS (tube))
Catatan Desain
The PIC16C622AT-20E/SS requires a decoupling 100nF ceramic capacitor placed within 5 mm of VDD (pin 14) and a bulk 10uF tantalum or aluminum capacitor on the supply rail. Brown-out reset is enabled by configuration fuses; for 5V systems configure BOR at 4.0V, for 3.3V systems configure BOR at 2.7V. Estimated: at 20MHz / 5V the typical active current is approximately 10 mA, and sleep current below 5uA.
Place the crystal or resonator (if used) within 10 mm of OSC1/OSC2 (pins 16/15) and shield the traces with a ground ring to reduce EMI coupling into adjacent analog pins RA0/RA1. MCLR (pin 4) requires a 10k pull-up to VDD; do not leave MCLR floating because spurious resets will occur. The PIC16C62x datasheet (DS30209E) recommends RC mode for cost-sensitive applications, but crystal mode is preferred for EMI-sensitive designs.
OTP program memory cannot be re-programmed. Validate firmware on a windowed EPROM equivalent (e.g. PIC16C622-20E/SS /JW) before OTP programming. Configuration word bits (WDT, BOR, code protection) must be set correctly at programming time and cannot be changed later. Per Microchip programming specifications, exceeding VPP voltage (13.5V typical) during programming will damage the OTP cells.
Informasi Konformitas
RoHS/REACH/lead-free status not explicitly confirmed in provided verified web data. Request latest compliance certificate from Microchip or distributor. Part is not AEC-Q100 qualified; not recommended for safety-critical automotive applications.