Описание
The LPC4357FET256 is an ARM Cortex-M4 based digital signal controller with an ARM Cortex-M0 coprocessor designed for embedded applications requiring signal processing. The ARM Cortex-M4 core offers single-cycle Multiply-Accumulate and SIMD instructions and a hardware floating-point unit to support signal processing while the M0 coprocessor handles I/O and digital control processing. The LPC4357FET256 includes 1 MB Flash memory, 136 kB of data memory, two High Speed USB 2.0 Host/OTG/Devices, advanced configurable peripherals such as the State Configurable Timer (SCT), Serial General Purpose I/O (SGPIO), and SPI Flash Interface (SPIFI) as well as Ethernet, LCD, an external memory controller and multiple digital and analog peripherals.
- ARM Cortex-M4 processor, running at frequencies of up to 204 MHz
- ARM Cortex-M4 built-in Memory Protection Unit (MPU) supporting eight regions
- ARM Cortex-M4 built-in Nested Vectored Interrupt Controller (NVIC)
- Hardware floating-point unit
- Non-maskable Interrupt (NMI) input
- JTAG and Serial Wire Debug (SWD)
- System tick timer
- ARM Cortex-M0 co-processor running at frequencies of up to 204 MHz
- 136 kB SRAM for code and data use
- Two 32 kB SRAM blocks with separate bus access
- 32 kB ROM containing boot code and on-chip software drivers
- 32 bit One-Time Programmable (OTP) memory for customer use
- Serial GPIO (SGPIO) interface
- State Configurable Timer (SCT) subsystem on AHB
- Quad SPI Flash Interface (SPIFI) with four lanes and up to 40 MB per second
- 10/100T Ethernet MAC with RMII and MII interfaces and DMA support
- One High-speed USB 2.0 Host/Device/OTG interface with DMA support
- One High-speed USB 2.0 Host/Device interface with DMA support
- One 550 UART with DMA support and full modem interface
- Three 550 USARTs with DMA and synchronous mode support
- One C_CAN 2.0B controller with one channel
- Two SSP controllers with FIFO and multi-protocol support
- One SPI controller
- One Fast-mode Plus I2C-bus interface with rates of up to 1 Mbit/s
- One Fast-mode I2C-bus interface
- Two I2S interfaces
- External Memory Controller (EMC) supporting external SRAM, ROM, flash, SDRAM
- LCD controller with dedicated DMA controller and a selectable display resolution
- Secure Digital Input Output (SDIO) card interface
- Eight-channel General-Purpose DMA (GPDMA) controller
- Up to 164 General-Purpose Input/Output (GPIO) pins
- Four general-purpose timer/counters with capture and match capabilities
- One motor control Pulse Width Modulator (PWM) for three-phase motor control
- One Quadrature Encoder Interface (QEI)
- Repetitive Interrupt timer (RI timer)
- Windowed watchdog timer (WWDT)
- Ultra-low power Real-Time Clock (RTC) on separate power domain
- Alarm timer; can be battery powered
- One 10-bit DAC with DMA support and a data conversion rate of 400 kSamples/s
- Two 10-bit ADCs with DMA support and a data conversion rate of 400 kSamples/s
- Two 128-bit secure OTP memories for AES key storage and customer use
- Crystal oscillator with an operating range of 1 MHz to 25 MHz
- 12 MHz Internal RC (IRC) oscillator trimmed to 1 % accuracy
- Ultra-low power Real-Time Clock (RTC) crystal oscillator
- Three PLLs allow CPU operation up to the maximum CPU rate
- Clock output
- Single 3.3 V (2.2 V to 3.6 V) power supply with on-chip DC-to-DC converter
- RTC power domain can be powered separately by a 3 V battery supply
- Four reduced power modes
- Processor wake-up from Sleep mode via wake-up interrupts
- Brownout detect with four separate thresholds for interrupt and forced reset
- Power-On Reset (POR)
- see selection guide for features per type
- 1 MB Flash memory
