PIC16C56AT-20/SO - 8-bit OTP MCU 1.5KB ROM 20MHz SOIC-18
MPN: PIC16C56AT-20/SO ✗ اختتامِ زندگیPIC16C56AT-20/SO جائزہ
Background Knowledge: An 8-bit OTP microcontroller is a single-chip computer built around an 8-bit data path and one-time-programmable (OTP) EPROM or ROM program memory. The PIC16C5X family uses a 12-bit wide instruction word with a Harvard architecture, separating program and data memory for deterministic single-cycle instruction execution. As a member of the broader microcontroller class (microcontroller -> MCU -> embedded controller -> semiconductor), the PIC16C56A belongs to the RISC subset, executes one instruction per instruction cycle (four clock periods), and is offered in masked-ROM (PIC16C56), UV-erasable windowed (PIC16C56 JW), and one-time-programmable EPROM (PIC16C56A) variants, with the "T" suffix denoting the tape-and-reel packaging option.
Key features include 12 I/O pins, 20 MHz maximum oscillator input, a 33-instruction RISC instruction set, on-chip power-on reset, watchdog timer with its own on-chip RC oscillator, internal MCLR reset input, programmable code protection, power-saving SLEEP mode, and selectable oscillator configurations (RC, LP, XT, HS, external clock). The 20 in the part number suffix designates the 20 MHz speed grade, the T denotes tape-and-reel, and /SO denotes the SOIC-18 wide-body small-outline package.
Typical applications span consumer appliances, automotive subsystems (non-safety), industrial control nodes, sensor interfaces, and low-cost battery-powered devices that benefit from deterministic single-cycle RISC execution and a mature toolchain based on MPLAB IDE and the MP3/MPLAB PM3 device programmer.
When designing with the PIC16C56AT-20/SO, ensure the Vdd decoupling network (typically 0.1 µF ceramic in parallel with a bulk tantalum/electrolytic cap) is placed within 10 mm of the supply pin, and respect the maximum I/O sink/source ratings per pin and per port.
کے لیے ڈراپ اِن متبادل PIC16C56AT-20/SO — 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 PIC16C56AT-20/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, Mounting Type, Program Memory Type, Watchdog Timer.
PIC16C56AT-04E/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56A-20I/SS
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56A-20E/P
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56A-04E/P
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C55AT-20/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C56AT-20/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | 8-bit RISC, Harvard |
| Family | PIC16C5X (PIC16C56A sub-family) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 1.5 KB (1K x 12) |
| Data RAM | 25 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 20 MHz |
| Instruction Set Size | 33 instructions |
| Instruction Width | 12 bits |
| I/O Pins | 12 |
| Timers | 1 x 8-bit (TMR0) with watchdog |
| Interrupts | External edge-selectable (PIC16C56A sub-family) |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Power-on Reset | Yes, on-chip |
| Power-Saving Mode | SLEEP |
| Code Protection | Programmable, on-chip |
| Oscillator Modes | RC, LP, XT, HS, External Clock |
| Temperature Grade | Commercial |
| پیکیج | 18-lead SOIC ("SO"), gull-wing |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Lead Form | Gull Wing |
PIC16C56AT-20/SO پن کنفیگریشن
| پن 1 | RA2/AN2 — Bidirectional I/O / analog channel (PIC16C56A) |
| پن 2 | RA3/AN3 — Bidirectional I/O / analog channel (PIC16C56A) |
| پن 3 | T0CKI — Timer0 external clock input |
| پن 4 | MCLR/Vpp — Master clear reset (active low) / programming voltage input |
| پن 5 | Vss — Ground reference |
| پن 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| پن 7 | RB1 — Bidirectional I/O |
| پن 8 | RB2 — Bidirectional I/O |
| پن 9 | RB3 — Bidirectional I/O |
| پن 10 | RB4 — Bidirectional I/O |
| پن 11 | RB5 — Bidirectional I/O |
| پن 12 | RB6 — Bidirectional I/O |
| پن 13 | RB7 — Bidirectional I/O |
| پن 14 | OSC2/CLKO — Oscillator crystal output / clock output |
| پن 15 | OSC1/CLKI — Oscillator crystal input / external clock input |
| پن 16 | RC0 — Bidirectional I/O (PIC16C56A additional port) |
| پن 17 | RC1 — Bidirectional I/O (PIC16C56A additional port) |
| پن 18 | Vdd — Positive supply voltage |
عام استعمالات
PIC16C56AT-20/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Consumer Appliance Control, Automotive Body Electronics (Non-Safety), Industrial Sensor Interface Module, Remote Control and Toy Electronics, LED Lighting Controllers, Battery-Powered Sensor Nodes.
Consumer Appliance Control
The PIC16C56AT-20/SO is well suited to consumer appliance control boards - washing machines, microwave ovens, coffee makers, dishwashers - where deterministic single-cycle RISC execution, 12 I/O pins, and a 20 MHz instruction throughput of 5 MIPS provide ample headroom for keypad scanning, relay drivers, and simple user-interface state machines. The 1.5 KB OTP program memory accommodates typical appliance firmware (mode selection, timing, fault handling) without external memory, and the on-chip watchdog timer plus power-on reset simplify fail-safe design for unattended equipment. The SOIC-18 surface-mount package supports automated pick-and-place assembly at the volumes typical of white-goods manufacturing.
تجویز کردہ
Automotive Body Electronics (Non-Safety)
In automotive body electronics applications such as interior lighting controllers, mirror-adjust modules, seat-position memory, and simple body-control nodes, the PIC16C56AT-20/SO delivers 12 I/O lines and 5 MIPS throughput suitable for low-rate CAN/LIN companion tasks when paired with a dedicated transceiver. The 20 MHz oscillator and edge-selectable external interrupts (a PIC16C56A feature) support precise debouncing of mechanical switch inputs. Note that this part is commercial-temperature-grade and is not qualified to AEC-Q100; for safety-relevant or under-hood modules select a PIC16F1XXX or PIC18 K-series AEC-Q100-qualified MCU instead.
تجویز کردہ
Industrial Sensor Interface Module
For industrial sensor-interface modules - simple 4-20 mA loop conditioners, digital thermocouple readers, limit-switch multiplexers, and panel-meter driver boards - the PIC16C56AT-20/SO provides 12 GPIO for matrix keypad or LED segment driving, a hardware watchdog for unattended operation, and a 33-instruction RISC set that compiles small and deterministic code. The 1.5 KB OTP holds linearization tables and modest protocol stacks. Industrial users should note the commercial temperature grade; for -40 to +85C environments the PIC16C56AT-20I/SO industrial variant is required.
تجویز کردہ
Remote Control and Toy Electronics
Low-cost remote controls, RC toys, and hobbyist electronics benefit from the PIC16C56AT-20/SO's small SOIC-18 footprint, 12 I/O for matrix keypads or LED indicators, and 20 MHz throughput for IR carrier generation and simple PWM motor control. The on-chip watchdog and SLEEP mode extend battery life in handheld devices, while OTP program memory keeps unit cost low for high-volume consumer goods. Designers can move to the flash-based PIC16F54 for prototype reuse without changing the PCB layout.
تجویز کردہ
LED Lighting Controllers
Addressable LED strip controllers, decorative lighting drivers, and DMX-512 node electronics can use the PIC16C56AT-20/SO as a low-cost sequencing engine. The 5 MIPS instruction throughput is more than adequate for WS2812/NeoPixel bit-banging at 800 kHz, and the 12 I/O accommodate a small DIP-switch address selector plus the LED data line. The on-chip watchdog timer is useful for unattended decorative installations. The SOIC-18 package simplifies integration into the small PCBs typical of LED fixtures.
تجویز کردہ
Battery-Powered Sensor Nodes
For battery-powered sensor nodes such as simple wireless push-buttons, thermostats, and environmental loggers, the PIC16C56AT-20/SO offers a hardware SLEEP mode and on-chip watchdog timer that together minimize quiescent current between samples. The 12 I/O connect to low-power sensors and an RF transmitter such as a sub-GHz OOK module. The 20 MHz oscillator can be swapped for the LP oscillator mode at 32.768 kHz for ultra-low-power timekeeping, and 1.5 KB OTP is sufficient for small sensor-fusion and duty-cycle control firmware.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C56AT-20/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C56AT-04E/SO | PIC16C55AT-20/SO | PIC16C56A-20I/SS | PIC16C56A-20E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-18 (/SO) | SOIC-18 - same | SOIC-18 - same | SSOP-20 (different footprint) | PDIP-18 (through-hole, different footprint) |
| Core / Family | PIC16C56A (8-bit RISC, PIC16C5X) | PIC16C56A (same) | PIC16C55A (sister family) | PIC16C56A (same) | PIC16C56A (same) |
| Program Memory | 1.5 KB OTP (1K x 12) | 1.5 KB OTP (same) | 1.5 KB OTP (same) | 1.5 KB OTP (same) | 1.5 KB OTP (same) |
| Data RAM | 25 bytes | 25 bytes | 25 bytes | 25 bytes | 25 bytes |
| Maximum Clock Frequency | 20 MHz | 4 MHz (-04 speed grade) | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 12 | 12 | 13 | 13 | 13 |
| On-chip Analog Comparator | No | No | Yes | No | No |
| Temperature Grade | Commercial | Extended (-40 to +125 C) | Commercial | Industrial (-40 to +85 C) | Extended (-40 to +125 C) |
اہم امتیازی خصوصیات
- SOIC-18 surface-mount variant of the PIC16C56A sub-family (بمقابلہPIC16C56A-20E/P (PDIP-18))
- Edge-selectable external interrupt and additional 8-bit I/O port (بمقابلہPIC16C56 (legacy))
- 20 MHz speed grade for 5 MIPS instruction throughput (بمقابلہPIC16C56AT-04E/SO (4 MHz speed grade))
ڈیزائن نوٹس
Estimated: place a 0.1 uF ceramic decoupling capacitor within 5-10 mm of the Vdd pin (pin 18) and a bulk capacitor of 1-10 uF (tantalum or electrolytic) on the same supply rail. The PIC16C56AT-20/SO draws a few mA active and a few uA in SLEEP mode, so the bulk capacitor must sustain Vdd through any expected SLEEP duty cycle. Tie MCLR (pin 4) to Vdd through a 10 kohm pull-up; if external reset is not used, leave the MCLR pin connected to Vdd directly. Add a small-signal diode from MCLR to Vdd if inductive kickback is possible on the reset line.
Estimated: keep oscillator traces short and surround them with a grounded copper pour. Crystal or ceramic resonator loading capacitors (typically 15-33 pF) must be placed within a few millimeters of OSC1 (pin 15) and OSC2 (pin 14). For high-noise environments, place the device away from switching power and signal lines, and add a ground guard ring around the oscillator section. The SOIC-18 footprint leaves adequate room for via-in-pad stitching to the inner ground plane; populate at least two ground stitches directly under the SOIC paddle area for thermal relief.
Estimated: do not program the PIC16C56AT-20/SO with PIC16C56 firmware without verifying the I/O port and interrupt mapping; the PIC16C56A sub-family adds an extra 8-bit I/O port (RC) and edge-selectable interrupts that the legacy PIC16C56 lacks. The OTP device cannot be erased by UV light, so firmware development must use a windowed (JW) package or a flash-based PIC16F54/55 development board. Confirm the toolchain you plan to use supports the PIC16C56A silicon revision; older MPASM / MPLAB IDE 8.x project files may need updating to the latest MPLAB X IDE for current toolchain support.
Estimated: SOIC-18 packages have a typical theta_JA of approximately 70-90 C/W on a standard 4-layer JEDEC test board. At the modest 5 V supply and 20 MHz clock typical for PIC16C56AT-20/SO designs, total device dissipation is well under 100 mW, so the junction temperature rise above ambient is negligible (<10 C) and no heatsink is required. Industrial users should still verify that operating ambient plus worst-case self-heating remains inside the commercial (0-70 C) or industrial (-40 to +85 C) limit of the chosen speed grade.
تعمیل کی معلومات
RoHS, REACH, lead-free, halogen-free, and conflict-minerals status for PIC16C56AT-20/SO were not present in the verified web data; treat each as 'unknown' until confirmed with the manufacturer or distributor. The part is not AEC-Q100 qualified; for safety-relevant automotive designs select an AEC-Q100-qualified PIC16F or PIC18 K-series MCU instead.
