PIC16F59T-I/PT - 8-Bit 20MHz 3KB Flash MCU, 32 I/O | Microchip
MPN: PIC16F59T-I/PT ✓ Hoạt độngPIC16F59T-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals on a single silicon die. Within the taxonomy, a PIC16F59 belongs to the 8-bit MCU category, then to flash-based MCUs, then to the PIC16 mid-range family, then to microcontrollers, then to integrated circuits. Its role in a system is to execute embedded firmware for sensing, control, communication, and human-interface tasks where deterministic real-time performance and low BOM cost matter more than raw compute throughput.
Key features include 3KB (2K x 12) of Flash program memory, 128 bytes of RAM, 32 digital I/O pins, an internal oscillator, a 20MHz instruction clock, and integrated peripherals such as timers, a watchdog timer, and a 10-bit ADC. Industrial -40C to +85C operating temperature range (the I suffix) makes it suitable for harsh environments and the wide -40C to +125C extended variant is available as PIC16F59T-E/PT for higher-temp deployments.
The PIC16F59T-I/PT uses a RISC-based Harvard architecture with a 14-bit wide instruction word and a single accumulator (WREG), delivering predictable throughput for tight control loops. With 35 instructions and DC to 20MHz operation, the core delivers up to 5 MIPS, and most instructions complete in a single instruction cycle. The Flash-based program memory supports in-circuit serial programming (ICSP) for field upgrades.
Typical applications include industrial control modules, sensor interface boards, low-cost appliance controllers, white goods, HVAC subsystems, automotive body electronics, and consumer devices that need more I/O than a 20-pin MCU but do not require USB, CAN, or Ethernet. The 32 I/O lines are particularly valuable when driving multiple LEDs, switches, keypads, and relays from a single chip.
When designing with the PIC16F59T-I/PT, allocate one ceramic bypass capacitor (0.1 uF) close to the VDD pin and a bulk capacitor (10 uF) on the supply rail. Use the ICSP pins (RB6/RB7) for in-circuit programming and debugging and reserve the MCLR pin (active-low reset) for a clean reset network. The wide-port-count TQFP-44 footprint simplifies layout when many GPIOs are required.
This page synthesizes distributor pricing, drop-in same-package and cross-brand alternatives, and practical design notes not found in the manufacturer datasheet alone, including thermal behavior, ICSP layout guidance, and a parametric comparison against PIC16F59 family variants and competitor MCUs.
Bộ thay thế dễ dàng lắp đặt cho PIC16F59T-I/PT — 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 PIC16F59T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature Range, Program Memory Size, RAM Size, Mounting Type.
PIC16F59-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F59-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F59T-E/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F59-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F59-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F59T-I/PT Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16 (Enhanced Mid-Range 14-bit RISC) |
| Program Memory Type | Flash |
| Program Memory Size | 3 KB (2K x 12) |
| RAM Size | 128 B |
| Maximum Clock Speed | 20 MHz |
| Instruction Set Width | 14-bit |
| Number of I/O Pins | 32 |
| Supply Voltage (VDD) | 4.5 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial, I grade) |
| Package Type | TQFP-44 (PT), 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Peripherals | Timers, Watchdog Timer, 10-bit ADC |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
Cấu hình chân PIC16F59T-I/PT
| Chân 1 | RA2 — Bidirectional I/O, Port A bit 2 |
| Chân 2 | RA3 — Bidirectional I/O, Port A bit 3 |
| Chân 3 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input |
| Chân 4 | MCLR — Active-low reset, ICSP programming voltage input |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RA0 — Bidirectional I/O, Port A bit 0 |
| Chân 7 | RA1 — Bidirectional I/O, Port A bit 1 |
| Chân 8 | RA5 — Bidirectional I/O, Port A bit 5 |
| Chân 9 | RE0 — Bidirectional I/O, Port E bit 0 |
| Chân 10 | RE1 — Bidirectional I/O, Port E bit 1 |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | VSS — Ground reference |
| Chân 13 | OSC1/CLKIN — External oscillator input or crystal connection |
| Chân 14 | OSC2/CLKOUT — External oscillator output or clock out |
| Chân 15 | RC0 — Bidirectional I/O, Port C bit 0 |
| Chân 16 | RC1 — Bidirectional I/O, Port C bit 1 |
| Chân 17 | RC2 — Bidirectional I/O, Port C bit 2 |
| Chân 18 | RC3 — Bidirectional I/O, Port C bit 3 |
| Chân 19 | RD0 — Bidirectional I/O, Port D bit 0 |
| Chân 20 | RD1 — Bidirectional I/O, Port D bit 1 |
| Chân 21 | RD2 — Bidirectional I/O, Port D bit 2 |
| Chân 22 | RD3 — Bidirectional I/O, Port D bit 3 |
| Chân 23 | RC4 — Bidirectional I/O, Port C bit 4 |
| Chân 24 | RC5 — Bidirectional I/O, Port C bit 5 |
| Chân 25 | RC6 — Bidirectional I/O, Port C bit 6 |
| Chân 26 | RC7 — Bidirectional I/O, Port C bit 7 |
| Chân 27 | RD4 — Bidirectional I/O, Port D bit 4 |
| Chân 28 | RD5 — Bidirectional I/O, Port D bit 5 |
| Chân 29 | RD6 — Bidirectional I/O, Port D bit 6 |
| Chân 30 | RD7 — Bidirectional I/O, Port D bit 7 |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply voltage |
| Chân 33 | RB0/INT — Bidirectional I/O / External interrupt input |
| Chân 34 | RB1 — Bidirectional I/O, Port B bit 1 |
| Chân 35 | RB2 — Bidirectional I/O, Port B bit 2 |
| Chân 36 | RB3 — Bidirectional I/O, Port B bit 3 |
| Chân 37 | RB4 — Bidirectional I/O, Port B bit 4 |
| Chân 38 | RB5 — Bidirectional I/O, Port B bit 5 |
| Chân 39 | RB6/ICSPCLK — Bidirectional I/O / ICSP clock |
| Chân 40 | RB7/ICSPDAT — Bidirectional I/O / ICSP data |
| Chân 41 | RE2 — Bidirectional I/O, Port E bit 2 |
| Chân 42 | RE3 — Bidirectional I/O, Port E bit 3 |
| Chân 43 | RA6 — Bidirectional I/O, Port A bit 6 |
| Chân 44 | RA7 — Bidirectional I/O, Port A bit 7 |
Ứng dụng tiêu biểu
PIC16F59T-I/PT phù hợp cho 6 Áp dụngs: Industrial Sensor Interface Board, White Goods Appliance Controller, HVAC Thermostat Control Module, Automotive Body Electronics (Non-Safety), Consumer LED Lighting Controller, Battery-Powered Remote Sensor Node.
Industrial Sensor Interface Board
The PIC16F59T-I/PT is well-suited for industrial sensor interface boards because its 32 digital I/O pins can directly multiplex multiple analog sensor inputs through external MUX ICs, drive status LEDs, and trigger relays. Operating from a single 5V rail with 4.5-5.5V tolerance, the MCU accepts the typical 24V industrial bus through a regulator while the 20 MHz clock delivers up to 5 MIPS for sampling loops. The 3 KB Flash holds calibration tables, lookup conversions, and Modbus RTU framing firmware comfortably.
Được đề xuất
White Goods Appliance Controller
In washing machines, dishwashers, and ovens the PIC16F59T-I/PT drives up to 32 I/O lines for relays, triac gating, keypads, and LED/LCD displays. The 20 MHz clock supports multi-segment display multiplexing and rotary encoder decoding at adequate sample rates, while the 128-byte RAM is sufficient for state machines that track wash cycles and user settings. Its industrial -40C to +85C rating tolerates the heat inside an appliance cabinet, and the ICSP interface enables end-of-line firmware customization for regional variants.
Được đề xuất
HVAC Thermostat Control Module
HVAC thermostats benefit from PIC16F59T-I/PT's 32 I/O pins to drive a graphical or segmented LCD, scan a capacitive touch keypad, and read multiple temperature/humidity sensors. The MCU's low-power Sleep mode extends battery life in wireless thermostats, while the industrial temperature range ensures reliable operation in unconditioned spaces. The 14-bit PIC16 instruction set simplifies state-machine firmware for proportional-integral control loops and schedule logic.
Được đề xuất
Automotive Body Electronics (Non-Safety)
Within automotive body controllers for window lifts, mirror adjusters, and interior lighting, PIC16F59T-I/PT drives power-FET gates, reads switch inputs, and implements debounced PWM for dimming. The 20 MHz instruction rate handles LIN-bus bit-banging over a UART when no hardware LIN peripheral is available, and the 32 I/O count accommodates multiple actuators. For under-hood or near-engine deployments where ambient temperatures exceed 85C, the PIC16F59T-E/PT variant should be substituted.
Được đề xuất
Consumer LED Lighting Controller
Architectural and decorative LED controllers that need to drive 16 to 32 PWM channels pair well with PIC16F59T-I/PT's 32 I/O count, where software PWM at 20 MHz can produce flicker-free dimming with sufficient bit depth. The 5V native supply matches constant-current LED driver inputs, and the 3 KB Flash comfortably stores show sequences, color presets, and DMX-512 address parsing. The compact TQFP-44 footprint also enables a small PCB suitable for inline LED strip controllers.
Được đề xuất
Battery-Powered Remote Sensor Node
Although PIC16F59T-I/PT operates from 4.5-5.5V, with a small boost regulator or 6V battery pack it powers wireless sensor nodes where its Sleep mode reduces quiescent current to a few microamps. The 20 MHz clock wakes the MCU quickly for periodic transmissions, and the 32 I/O pins accommodate multiple sensor interfaces. The wide industrial temperature range suits agricultural, environmental, and asset-tracking deployments in unconditioned outdoor enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F59T-I/PT — 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 | PIC16F59-I/PT | PIC16F59-E/PT | PIC16F59T-E/PT | PIC16F59-I/P | PIC16F59-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Program Memory | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash | 3 KB Flash |
| RAM | 128 B | 128 B | 128 B | 128 B | 128 B | 128 B |
| I/O Pins | 32 | 32 | 32 | 32 | 32 | 32 |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) |
| Shipping Carrier | Tape & Reel | Tray | Tray | Tape & Reel | Tray | Tray |
Bảo phân biệt quan trọng
- 32 GPIO pins on TQFP-44 footprint (vsPIC16F57-I/P)
- Industrial temperature grade from factory (vsPIC16F59T-E/PT)
- Tape-and-reel packaging for SMT assembly (vsPIC16F59-I/PT)
Ghi chú thiết kế
Estimated: Place a 0.1 uF ceramic bypass capacitor within 5 mm of each VDD pin (pins 11 and 32) and a 10 uF bulk capacitor on the supply rail. Use a wide ground pour under the TQFP-44 footprint to provide thermal relief; the estimated theta_JA is around 50 C/W for the 10x10 mm TQFP package. The exposed pad on this TQFP is the die flag and should be soldered to a thermal land on the PCB for best thermal performance.
Route the OSC1/OSC2 traces short and symmetric with a ground guard ring if using a crystal; this minimizes EMI pickup on the oscillator. For higher-speed 20 MHz operation, place a 1 M-ohm feedback resistor across OSC1/OSC2 when using a low-frequency crystal, as recommended in the Microchip PIC16F5x oscillator design note. ICSP clock/data lines on RB6/RB7 should be kept short and away from switching nodes to avoid programming glitches in noisy environments.
Do not leave the MCLR pin floating - always tie it through a 10 k-ohm pull-up to VDD with a 100 nF capacitor to ground for noise immunity. Config bits must be set correctly to enable the watchdog timer in noisy industrial environments; failure to do so is a common cause of field resets. The PIC16F59 does not have an internal oscillator in some mask revisions - verify the configuration bits select an appropriate clock source before locking the part.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page. PIC16F59T-I/PT is not AEC-Q100 qualified - it is industrial grade only. For automotive body electronics where AEC-Q100 is required, consult Microchip's automotive-grade PIC portfolio.