OpenJZ


OpenJZ
Hardware
CPU: JZ4740 360MHz MIPSJz4740 is a multimedia application processor targeting for mobie devices like smart-phone, PMP and GPS.Incorporate the XBurst CPU core based on leading micro-architecture technology, this processor provides high integration,high performance and low power consumption solution for embedded device.
SDRAM: 64MB K4S511632DThe K4S511632D is 536,870,912 bits synchronous high data rate Dynamic RAM organized as 4 x 33,554,432 words by 4 bits / 4 x 16,777,216 words by 8 bits / 4 x 8,388,608 words by 16 bits, fabricated with SAMSUNG's high performance CMOS technology. Synchronous design allows precise cycle control with the use of system clock I/O transactions are possible on every clock cycle. Range of operating frequencies, programmable burst length and programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.
FLASH: 64MB K9F1208U0COffered in 64Mx8bits, the K9F1208X0C is 512Mbit with spare 16Mbit capacity. The device is offered in 1.8V, 2.7V and 3.3V Vcc. Its NAND cell provides the most cost-effective solutIon for the solid state mass storage market. A program operation can be performed in typical 200μs on the 528-bytes and an erase operation can be performed in typical 2ms on a 16K-bytes block. Data in the page can be read out at 42ns cycle time per byte. The I/O pins serve as the ports for address and data input/output as well as command input. The on-chip write control automates all program and erase functions including pulse repetition, where required, and internal verification and margining of data. Even the write-intensive systems can take advantage of the K9F1208X0C′s extended reliability of 100K program/erase cycles by providing ECC(Error Correcting Code) with real time mapping-out algorithm. The K9F1208X0C is an optimum solution for large nonvolatile storage applications such as solid state file storage and other portable applications requiring non-volatility.
LCD: 320 x 240 LMS350GF03LMS350GF03 is a TMR(Transmissive with Micro Reflective) type color active matrix TFT (Thin Film Transistor) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching devices. This model is composed of a TFT-LCD module, a driver circuit and a back-light unit and a touch screen panel(TSP). The resolution of a 3.5" contains 320xRGBx240 dots and can display up to 16.7M colors.
WLAN: 88W8686 WM-G-MR-09The Marvell 88W8686 integrates an ARM compliant CPU, high speed serial host interfaces including SDIO and SPI to ensure interoperability with a variety of host systems, and advanced 802.11 a/b/g RF transceiver with full cellular coexistence. Targeted at a wide variety of consumer devices, including 3G+ and broadband handsets, the Marvell 88W8686 has full compliance for advanced communications standards including complete support for L3, TCP/IP, UMA and IMS. The Marvell 88W8686 incorporates Marvell’s proven thick MAC architecture, and offloads the host CPU—resulting in lower power and increased system performance. The Marvell 88W8686 is fully backwards compatible, with Marvell’s field proven, industry leading WLAN software suite for Linux, Symbian, Windows CE and other proprietary operating systems.
DC/DC: LTC3407-3 3.3V/1.8V 800mAThe LTC®3407-3 is a dual, constant frequency, synchronous step down DC/DC converter. Intended for low power applications, it operates from 3.3V to 5.5V input voltage range and has a constant 2.25MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors with a profile ≤1.0mm. Internal synchronous 0.35Ω, 1.2A power switches provide high efficiency without the need for external Schottky diodes.
BATTERY CHARGE: LTC4001 4.2V 2AThe LTC®4001 is a 2A Li-Ion battery charger intended for 5V wall adapters. It utilizes a 1.5MHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET and sense resistor allow a physically small charger that can be embedded in a wide range of handheld applications. The LTC4001 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V float voltage. Input short-circuit protection is included so no blocking diode is required.










