ATMEGA88V-10PJ - 8KB AVR MCU, 1.8V, 28-PDIP | Microchip
MPN: ATMEGA88V-10PJ ✓ Hoạt độngATMEGA88V-10PJ Tóm tắt
An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most of its 131 instructions in a single clock cycle, positioning it within the broader hierarchy of MCU -> 8-bit microcontroller -> embedded processor. The ATmega48/88/168 family shares a common peripheral set and pinout, letting designers scale memory without PCB changes.
Key features include self-programming Flash with read-while-write capability, an 8-channel 10-bit ADC, a byte-oriented Two-Wire (I2C-compatible) interface, a serial USART, SPI, three flexible timer/counters with compare modes, and debugWIRE on-chip debug. A 32-register general-purpose file is directly connected to the ALU, achieving near-single-cycle throughput.
The core runs from 1.8 V, enabling battery-powered designs, while six power-saving modes including power-down at sub-uA levels extend battery life. The 28-PDIP package suits prototyping, sockets, and legacy through-hole production lines.
Typical applications include industrial sensor nodes, appliance control boards, hobby and education platforms such as Arduino-compatible designs, and low-cost battery instruments.
Design tip: when running below 5 V, respect the V-suffix 10 MHz frequency-voltage derating curve and enable the internal brown-out detector for supply-dip immunity.
This page adds distributor sourcing context, drop-in alternatives, and design notes not found in the manufacturer datasheet. Pricing shown as of 2026-09-19.
Bộ thay thế dễ dàng lắp đặt cho ATMEGA88V-10PJ — 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 ATMEGA88V-10PJ (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Instructions, Maximum Clock Frequency.
ATMEGA88PA-PN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA88-20PI
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA168PA-PU
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATMEGA48A-PU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA8A-PU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATMEGA88V-10PJ Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit AVR RISC |
| Flash Program Memory | 8 KB |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Tần số xung maksimum | 10 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| I/O Lines | 23 |
| ADC | 8-channel 10-bit |
| Timers/Counters | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | USART, SPI, Two-Wire (I2C-compatible) |
| Throughput | Up to 10 MIPS (1 MIPS per MHz) |
| Instructions | 131 instructions, most single-cycle |
| On-Chip Debug | debugWIRE |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 28-pin PDIP (PJ), through-hole |
| Kiểu lắp đặt | Through-Hole |
| Programming | ISP (In-System Programmable), self-programming Flash |
| Power Modes | 6 modes including power-down and power-save |
Cấu hình chân ATMEGA88V-10PJ
| Chân 1 | PC6/RESET — Port C bit 6 / Reset input |
| Chân 2 | PD0/RXD — Port D bit 0 / USART receive |
| Chân 3 | PD1/TXD — Port D bit 1 / USART transmit |
| Chân 4 | PD2/INT0 — Port D bit 2 / External interrupt 0 |
| Chân 5 | PD3/INT1/OC2B — Port D bit 3 / External interrupt 1 / Timer2 output compare B |
| Chân 6 | PD4/T0/XCK — Port D bit 4 / Timer0 external clock / USART external clock |
| Chân 7 | VCC — Digital supply voltage (1.8 V to 5.5 V) |
| Chân 8 | GND — Ground |
| Chân 9 | PB6/XTAL1/TOSC1 — Port B bit 6 / Crystal oscillator input / Timer oscillator |
| Chân 10 | PB7/XTAL2/TOSC2 — Port B bit 7 / Crystal oscillator output / Timer oscillator |
| Chân 11 | PD5/T1/OC0B — Port D bit 5 / Timer1 external clock / Timer0 output compare B |
| Chân 12 | PD6/AIN0/OC0A — Port D bit 6 / Analog comparator positive / Timer0 output compare A |
| Chân 13 | PD7/AIN1 — Port D bit 7 / Analog comparator negative |
| Chân 14 | PB0/ICP1/CLKO — Port B bit 0 / Timer1 input capture / Clock output |
| Chân 15 | PB1/OC1A — Port B bit 1 / Timer1 output compare A |
| Chân 16 | PB2/SS/OC1B — Port B bit 2 / SPI slave select / Timer1 output compare B |
| Chân 17 | PB3/MOSI/OC2A — Port B bit 3 / SPI master output / Timer2 output compare A |
| Chân 18 | PB4/MISO — Port B bit 4 / SPI master input |
| Chân 19 | PB5/SCK — Port B bit 5 / SPI clock |
| Chân 20 | AVCC — ADC supply voltage |
| Chân 21 | AREF — ADC analog reference |
| Chân 22 | GND — Ground |
| Chân 23 | PC0/ADC0 — Port C bit 0 / ADC input 0 |
| Chân 24 | PC1/ADC1 — Port C bit 1 / ADC input 1 |
| Chân 25 | PC2/ADC2 — Port C bit 2 / ADC input 2 |
| Chân 26 | PC3/ADC3 — Port C bit 3 / ADC input 3 |
| Chân 27 | PC4/ADC4/SDA — Port C bit 4 / ADC input 4 / Two-Wire data |
| Chân 28 | PC5/ADC5/SCL — Port C bit 5 / ADC input 5 / Two-Wire clock |
Ứng dụng tiêu biểu
ATMEGA88V-10PJ phù hợp cho 6 Áp dụngs: Industrial Sensor Nodes, Battery-Powered Instruments, Appliance Control Boards, Hobby and Education Platforms, Motor Control and PWM Actuation, Embedded Host and Communication Bridges.
Industrial Sensor Nodes
The ATMEGA88V-10PJ fits industrial sensor acquisition nodes because its 8-channel 10-bit ADC digitizes multiple analog sensors (thermistors, pressure bridges, 4-20 mA inputs via shunts) without an external converter, and the 1.8-5.5 V supply tolerates noisy, unregulated industrial rails. The USART connects to RS-485 transceivers for Modbus-style field buses, while the Two-Wire interface reads digital sensors. Running at 10 MHz conserves power in duty-cycled nodes: the MCU sleeps in power-down between sampling intervals and wakes on watchdog or pin-change interrupt, keeping average consumption compatible with long-life battery or loop-powered designs in factory and building-automation installations.
Được đề xuất
Battery-Powered Instruments
Battery instruments benefit directly from the V speed grade: 10 MHz operation is guaranteed down to 1.8 V, so the design runs directly from two AA cells (3.0 V nominal) or a single lithium cell without a boost converter. Six power-saving modes, including power-save with asynchronous Timer2 for real-time clocking, allow sample-then-sleep scheduling that stretches battery life to multi-year service. The 512 B EEPROM stores calibration coefficients across power cycles, and debugWIRE permits in-target current and firmware debugging through the single RESET line. Typical products include portable meters, data loggers, and handheld environmental monitors where through-hole 28-PDIP mounting also simplifies field battery-board rework.
Được đề xuất
Appliance Control Boards
White-goods and small-appliance controls use the ATMEGA88V-10PJ for its cost-effective combination of 23 I/O lines, three timer/counters with PWM compare outputs, and self-programming Flash that enables field firmware updates over a UART bootloader. The 10-bit ADC reads user controls, NTC temperature sensors, and mains-synchronized zero-cross signals, while PWM channels drive triac firing, buzzer tones, or LED indication. The brown-out detector and watchdog timer provide the reset robustness required in electrically noisy motor environments. The 28-PDIP through-hole package withstands wave soldering and simplifies repair-oriented appliance manufacturing common in cost-sensitive production regions.
Được đề xuất
Hobby and Education Platforms
The ATMEGA88V-10PJ remains a staple of education and maker platforms because it shares the AVR instruction set and ISP programming workflow with the Arduino ecosystem while offering a low-cost 28-PDIP part that students can insert into a socket and replace after miswiring. Its 131-instruction RISC core teaches computer architecture cleanly, and peripherals map directly to Arduino concepts: USART to Serial, Two-Wire to Wire library, timers to analogWrite(). Wide 1.8-5.5 V operation allows breadboarding directly from USB (5 V) or battery packs without regulators, and abundant community toolchain support - avr-gcc, avrdude, USBasp - requires no proprietary licenses.
Được đề xuất
Motor Control and PWM Actuation
Small DC and stepper motor applications exploit the ATMEGA88V-10PJ's two 8-bit and one 16-bit timer with output-compare PWM, generating phase-correct or fast-PWM drive for H-bridge and driver IC inputs. The 16-bit timer provides precise servo pulse generation with 0.5 us-class resolution at 10 MHz, and pin-change interrupts on any I/O decode quadrature encoder feedback. The 10-bit ADC samples motor current via a shunt for stall detection and closed-loop speed control. Its 5.5 V maximum supply directly matches logic-level MOSFET gate thresholds in low-voltage actuator boards used in printers, locks, camera gimbals, and small robotics.
Được đề xuất
Embedded Host and Communication Bridges
As a protocol bridge, the ATMEGA88V-10PJ converts between its three serial peripherals - USART, SPI, and Two-Wire - letting legacy equipment talk to modern sensors: for example SPI Flash or ADC front-ends bridged to a RS-232/RS-485 link, or Two-Wire slave devices exposed on a USB-serial console. Self-programming Flash stores received firmware or lookup tables, and 1 KB SRAM buffers packet payloads adequate for simple point-to-point links. Deterministic single-cycle instruction execution makes bit-banged timing-critical protocols (1-Wire, DMX, IR) reliable without assembler tuning. Through-hole mounting eases integration into retrofit adapter boxes installed alongside legacy industrial equipment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATMEGA88V-10PJ — 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 | ATMEGA88PA-PN | ATMEGA88-20PI | ATMEGA168PA-PU | ATMEGA48A-PU |
|---|---|---|---|---|---|
| Package | 28-PDIP (PJ) | 28-PDIP - same | 28-PDIP - same | 28-PDIP - same | 28-PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB | 8 KB | 8 KB | 16 KB | 4 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB | 512 B |
| Max Clock Frequency | 10 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.7 V to 5.5 V (20 MHz needs 4.5 V) | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 256 B |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Power Technology | V grade (standard process) | picoPower (lowest sleep current) | standard process | picoPower | standard process |
Bảo phân biệt quan trọng
- Guaranteed 10 MHz operation down to 1.8 V (vsATMEGA88-20PI)
- Lowest-risk supply continuity for V-grade sockets (vsATMEGA88PA-PN)
- Twice the Flash of the smaller family member at same cost class (vsATMEGA48A-PU)
Ghi chú thiết kế
Connect AVCC (pin 20) to VCC through a low-pass RC network (e.g. 10 ohm series resistor with 100 nF to ground) when ADC accuracy matters, and never leave AVCC floating - the ADC and Port C will misbehave. Always tie AREF (pin 21) to ground via 100 nF when using internal or AVCC reference; driving AREF from an external source requires selecting external-reference mode first to avoid internal short. Estimated: a 10 ohm/100 nF filter gives a ~160 kHz corner, attenuating switching noise well above the ADC clock.
For the 28-PDIP on a through-hole board, place 100 nF ceramic decoupling directly across VCC (pin 7) and GND (pin 8) with leads under 10 mm, plus 4.7-10 uF bulk capacitance per board. Keep the crystal (pins 9-10) within 20 mm of the chip with 12-22 pF load capacitors matched to the crystal spec, and route the RESET trace (pin 1) away from high-current PWM loops to prevent spurious resets. debugWIRE shares RESET, so leave it accessible with a series 10 k pull-up only.
The most common migration error is fuse mismatch: the V-10PJ ships with the internal 8 MHz RC oscillator divided by 8 (1 MHz default). If you switch CKDIV8 or select an external crystal via CKOUT fuses incorrectly on a 5 V board while expecting 10 MHz V-grade behavior, verify the frequency-versus-voltage curve - running a standard -20 part below 4.5 V at full speed is out of specification. Also note PC6 is RESET by fuse default; using it as I/O requires disabling RESET, which disables ISP and requires high-voltage programming to recover.
Thông tin tuân thủ
The PJ package suffix denotes lead-free (J) plating on the 28-PDIP; current production Microchip AVR parts are RoHS-compliant. REACH and conflict-minerals status should be confirmed on the Microchip environmental compliance portal for the specific date code.
