Acroview, a leader in chip programming, has officially announced the further expansion of its supported device portfolio alongside the release of its new programming software version. Its core product—the universal programming platform AP8000—has now achieved full adaptation for Nation's general-purpose microcontroller N32G455VCL.

The N32G455VCL microcontroller features a high-performance 32-bit ARM Cortex™-M4F core with a Floating-Point Unit (FPU) and Digital Signal Processing (DSP) support, including parallel computing instructions. It operates at a maximum frequency of 144 MHz, integrates up to 512 KB of encrypted embedded Flash with multi-user partition management, and up to 144 KB of SRAM. It incorporates an internal high-speed AHB bus, two low-speed peripheral clock buses (APB), and a bus matrix, supporting up to 80 general-purpose I/Os. It offers rich high-performance analog interfaces, including four 12-bit 5 Msps ADCs with up to 38 external input channels, two 1 Msps 12-bit DACs, four independent rail-to-rail operational amplifiers, and up to seven high-speed comparators. A variety of digital communication interfaces are also provided, including 7 U(S)ARTs, 4 I2Cs, 3 SPIs, 2 I2Ss, 1 QSPI, 1 USB 2.0 device, 2 CAN 2.0B, and 1 SDIO interface. An integrated hardware accelerator engine for cryptographic algorithms supports multiple international and national encryption algorithms.

The N32G455VCL operates stably over a temperature range of -40°C to +105°C and a supply voltage of 1.8V to 3.6V. It offers multiple power modes to meet low-power application requirements. The device is available in five package options from 48-pin to 100-pin, with different peripheral configurations depending on the package.

Key Features

• Core CPU

• 32-bit ARM Cortex-M4 core + FPU, single-cycle hardware multiplication, supports DSP instructions and MPU

• Built-in 8 KB instruction cache, enabling 0-wait program execution with Flash acceleration unit

• Maximum main frequency 144 MHz, 180 DMIPS

• Secure Memory

• Up to 512 KB on-chip Flash with encryption storage, multi-user partition management, data protection, hardware ECC, 100,000 program/erase cycles, and 20-year data retention

• 144 KB on-chip SRAM (including 16 KB Retention RAM), with hardware parity check for Retention RAM

• Clocks

• HSE: 4 MHz to 32 MHz external high-speed crystal

• LSE: 32.768 kHz external low-speed crystal

• HSI: Internal high-speed RC OSC 8 MHz

• LSI: Internal low-speed RC OSC 40 kHz

• Built-in high-speed PLL

• One clock output, configurable to system clock, HSE, HSI, or PLL divided output

• Reset

• Power-on/power-drop/brown-out/external pin reset

• Watchdog reset, software reset

• Communication Interfaces

• 7 U(S)ART interfaces, up to 4.5 Mbps; 3 USARTs (support ISO7816, IrDA, LIN) and 4 UARTs

• 3 SPI interfaces, up to 36 MHz, 2 support I2S

• 1 QSPI interface, up to 144 Mbps

• 4 I2C interfaces, up to 1 MHz, master/slave configurable, dual-address response in slave mode

• 1 USB 2.0 Full-Speed Device interface

• 2 CAN 2.0A/B bus interfaces

• 1 SDIO interface, supporting SD/SDIO/MMC formats

• High-Performance Analog Interfaces

• 4 x 12-bit 4.7 Msps high-speed ADCs, configurable to 12/10/8/6-bit modes; up to 8.9 Msps in 6-bit mode; up to 38 external single-ended input channels, supports differential mode

• 4 rail-to-rail operational amplifiers with built-in programmable gain up to 32x

• Up to 7 high-speed analog comparators with 64-level adjustable reference

• 2 x 12-bit DACs, 1 Msps sampling rate

• Supports external independent reference voltage input

• All analog interfaces support full voltage operation from 1.8V to 3.6V

• Up to 80 GPIOs with multiplexing functions, most GPIOs are 5V tolerant

• 2 high-speed DMA controllers, each with 8 channels, arbitrary configurable source and destination addresses

• RTC real-time clock with leap year calendar, alarm events, periodic wake-up, internal/external clock calibration

• Timers/Counters

• 2 x 16-bit advanced timers, supporting input capture, output compare, PWM output, and quadrature encoder input; control precision up to 6.9 ns. Each timer has 4 independent channels, 3 channels support 6 complementary PWM outputs

• 4 x 16-bit general-purpose timers, each with 4 independent channels, supporting input capture/output compare/PWM output/single-pulse output

• 2 x 16-bit basic timers

• 1 x 24-bit SysTick

• 1 x 7-bit window watchdog (WWDG)

• 1 x 12-bit independent watchdog (IWDG)

• Programming Methods

• SWD/JTAG online debug interface

• UART and USB Bootloader

• Security Features

• Built-in hardware acceleration engine for cryptographic algorithms

• Supports AES, DES, SHA, SM1, SM3, SM4, SM7, MD5 algorithms

• Flash memory encryption

• Multi-user partition management (MMU)

• TRNG true random number generator

• CRC16/32

• Write protection (WRP), multiple read protection (RDP) levels (L0/L1/L2)

• Secure boot, encrypted program download, secure update

• External clock failure monitoring, tamper detection

• 96-bit UID and 128-bit UCID

• Operating Conditions

• Supply voltage: 1.8V to 3.6V

• Temperature range: -40°C to +105°C

• ESD: ±4 kV (HBM model), ±1 kV (CDM model)

• Packages

• QFN36 (6x6 mm)

• QFN48 (6x6 mm)

• LQFP48 (7x7 mm)

• QFN64 (8x8 mm)

• LQFP64 (10x10 mm)

• LQFP80 (12x12 mm)

• LQFP100 (14x14 mm)

Internal Block Diagram

Acroview's self-developed AP8000 universal programmer has become a benchmark professional programming solution in the industry. The device supports flexible one-to-one and one-to-eight configuration modes, offers both online and offline operation, and features dedicated programming solutions for memory chips such as eMMC and UFS. It fully covers bare-chip offline programming and on-board programming for Nation's entire series of chips. The AP8000 adopts an innovative modular design with three core modules—main unit, base board, and adapter socket—giving it excellent compatibility and expandability. As a universal programming platform, it not only adapts to various programmable chips on the market but also delivers stable and high-performance operation, serving as the core component of Acroview's automated batch programming system IPS5800S for high-volume production tasks.

The AP8000 main unit offers flexible connectivity with both USB and NET interfaces, enabling convenient networking of multiple programmers. Through networking, users can easily achieve synchronized control of multiple programmers for efficient parallel programming operations. In terms of safety, the main unit incorporates an intelligent safety protection circuit that monitors chip placement status and circuit connections in real time. Upon detecting abnormalities such as reverse insertion or short circuits, it immediately triggers power-off protection to safeguard both the chip and the programmer. The main unit is equipped with a high-speed FPGA chip, significantly improving data transmission and processing efficiency for smooth and efficient programming. For enhanced convenience, an SD card slot is provided on the rear panel. Users can store project files generated from a PC onto an SD card, insert it into the slot, and then use the physical buttons on the programmer to select, load, and execute programming operations, enabling standalone operation without a PC. This design reduces dependency on computer hardware, simplifies workspace setup, and greatly improves operational flexibility.

In terms of expandability and compatibility, the AP8000 adopts a modular combination of base board and adapter board, effectively extending the main unit's capabilities. The device currently supports products from major semiconductor manufacturers, including SK hynix, Micron, SANDISK, ASR, Kingston, and others. Its supported device types cover NAND, NOR, MCU, CPLD, FPGA, eMMC, and more, and it is fully compatible with industry-standard file formats such as Intel Hex, Motorola S, Binary, and POF, providing users with a one-stop, full-scenario chip programming solution.

Company Introduction

About Nation: Nation Technology (Nation) originated from the national "909" integrated circuit special project in 2000. It is a leading Chinese enterprise in security chips and general-purpose MCUs, a national high-tech enterprise, and hosts the first independent security chip attack-and-defense technology laboratory in China's private sector, as well as a post-doctoral research workstation. Its main products include security chips, general-purpose MCUs, trusted computing chips, smart card chips, contactless reader chips, Bluetooth chips, and RCC innovative products. These are widely used in network security authentication, e-banking, e-certificates, mobile payment and mobile security, IoT, industrial internet and industrial control, smart home appliances and smart home IoT terminals, consumer electronics, motor drives, battery and energy management, smart metering, medical electronics, automotive electronics, security, biometrics, communications, sensors, and machine automation.

About Acroview: Acroview Technology (ACROVIEW) is a national-level "Little Giant" specialized and sophisticated enterprise engaged in R&D, manufacturing, and sales of semiconductor chip testing and programming equipment. The company is committed to empowering the entire industry chain—including Fabless, IDM, OSAT, wafer fabs, and end-device manufacturers—through innovative semiconductor testing technologies and solutions. Acroview's pioneering fully automatic burn-in system (Auto Burn-In, ABI) greatly enhances chip burn-in efficiency and reduces per-DUT test costs. It also provides equipment and solutions across PSV, CP, FT, ABI, SLT, and programming stages. By integrating product technology leadership, system-level expertise, and a globally distributed R&D and sales service network, Acroview creates value for customers to gain competitive advantages in the market.