Overview
The AM1705DPTP3, produced by Texas Instruments, is a low-power ARM microprocessor based on the ARM926EJ-S core. This device is designed to enable original-equipment manufacturers (OEMs) and original-design manufacturers (ODMs) to quickly develop devices with robust operating systems, rich user interfaces, and high processor performance. The AM1705 integrates a comprehensive set of peripherals and memory, making it suitable for a variety of applications requiring high performance and flexibility.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Core | ARM926EJ-S, 32-bit RISC |
| Operating Frequency | 375 MHz (1.2V) or 456 MHz (1.3V) |
| Instruction Set | 32-bit and 16-bit (Thumb) Instructions |
| Caches | 16KB Instruction Cache, 16KB Data Cache |
| RAM | 128KB + 8KB (Vector Table) |
| ROM | 64KB |
| External Memory Interfaces | EMIFA (NAND, NOR, Flash), EMIFB (16-bit SDRAM up to 128 MB) |
| UART | Three configurable 16550-Type UART Modules |
| SPI | Two Serial Peripheral Interfaces (SPIs) each with one chip select |
| I2C | Two Master and Slave Inter-Integrated Circuit (I2C Bus) interfaces |
| USB | USB 2.0 OTG Port with integrated PHY |
| Ethernet | 10/100 Mbps Ethernet MAC (EMAC) with RMII interface |
| Audio Ports | Two Multichannel Audio Serial Ports (McASPs) |
| PWM and Capture Modules | Three enhanced high-resolution PWM (eHRPWM), three enhanced capture (eCAP), two enhanced quadrature encoder pulse (eQEP) |
| Package | 176-Pin PowerPAD Plastic Quad Flat Pack (PTP), 24 mm x 24 mm, 0.5 mm pitch |
| Operating Voltage | Core: 1.2V or 1.3V, I/O: 3.3V |
Key Features
- ARM926EJ-S RISC Core: Supports 32-bit and 16-bit instructions, single-cycle MAC, and ARM Jazelle technology.
- Memory and Caches: 16KB instruction cache, 16KB data cache, 8KB RAM (Vector Table), and 64KB ROM.
- External Memory Interfaces: EMIFA for asynchronous memory and EMIFB for 16-bit SDRAM.
- Peripheral Set: Includes UART, SPI, I2C, USB 2.0 OTG, 10/100 Mbps Ethernet MAC, and multichannel audio serial ports.
- Programmable Real-Time Unit Subsystem (PRUSS): Two independent PRU cores with 4KB instruction RAM and 512 bytes of data RAM per core.
- Power Management: Standard power-management mechanisms including clock gating.
- GPIO and Timers: Up to 8 banks of 16 pins of general-purpose input/output (GPIO) and two 64-bit general-purpose timers.
Applications
- Industrial Automation: Suitable for control systems and automation in industrial environments.
- Home Automation: Used in smart home devices and systems.
- Test and Measurement: Ideal for equipment requiring high precision and performance.
- Portable Data Terminals: Used in handheld devices and portable data terminals.
Q & A
- What is the core processor of the AM1705DPTP3?
The core processor is the ARM926EJ-S, a 32-bit RISC core. - What are the operating frequencies of the AM1705DPTP3?
The operating frequencies are 375 MHz at 1.2V and 456 MHz at 1.3V. - What types of external memory interfaces does the AM1705DPTP3 support?
The device supports EMIFA for asynchronous memory and EMIFB for 16-bit SDRAM. - Does the AM1705DPTP3 have USB capabilities?
Yes, it has a USB 2.0 OTG port with an integrated PHY. - What is the purpose of the Programmable Real-Time Unit Subsystem (PRUSS) in the AM1705DPTP3?
The PRUSS includes two independent PRU cores for real-time processing and can be disabled through software to save power. - What are the key features of the Ethernet interface on the AM1705DPTP3?
The device has a 10/100 Mbps Ethernet MAC (EMAC) with an RMII interface and MDIO module. - How many UART modules does the AM1705DPTP3 have?
The device has three configurable 16550-Type UART modules. - What types of audio interfaces are available on the AM1705DPTP3?
The device includes two Multichannel Audio Serial Ports (McASPs). - What is the package type and size of the AM1705DPTP3?
The package is a 176-Pin PowerPAD Plastic Quad Flat Pack (PTP), 24 mm x 24 mm, with a 0.5 mm pitch. - What are the typical operating voltages for the AM1705DPTP3?
The core operates at 1.2V or 1.3V, and the I/O operates at 3.3V.
