Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Hitachi Europe | Subject: SH7705
Edited by the Electronicstalk Editorial
Team on 29 July 2002
Frugal processor takes more functions
onboard
The SH7705 ultra-low-power microprocessor boasts a current consumption of just 1mA/MHz.
The SH7705 ultra-low-power microprocessor boasts a current consumption of just 1mA/MHz The new microprocessor from Hitachi incorporates an SH-3 32bit SuperH RISC CPU core, a 32-byte cache memory and comprehensive on-chip peripheral functions including USB
This article was originally published on Electronicstalk on 16 Feb 2001 at 8.00am (UK)
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The SH7705 will enable the implementation of high-performance, low-power-consumption digital home appliances, portable information devices, and office appliances such as fax machines and colour printers.
Sample shipments begin in August 2002.
The SH7705 employs a 0.18um CMOS process and dual power supply voltages of 1.5 and 3.3V, and has an operating speed of 133MHz.
Further reading
Big Flash memory for 32bit RISC microcontroller
Available now, the SH7018F 32bit RISC microcontroller is the latest addition to the high-performance SuperH family from Hitachi.
Circular beam is a bonus for red laser diodes
Hitachi has announced the MARU Beam Series of red laser diodes which offers the world's first circular beam with a 1.2 (typical) aspect ratio in the 635nm wavelength band.
It offers a module standby mode which halts operations not required at that time and provides a further reduction in power consumption, enabling longer operation time of battery-driven products.
The ultra-low power consumption of the new device is approximately half that of Hitachi's current SH7622 device when measured in power consumption per processing performance.
The SH-3 CPU core of the new microcontroller has been designed for portable devices, enabling a high processing performance of 173MIPS at 133MHz operation.
The SH7705's large 32Kbyte cache memory is four times the capacity of Hitachi's existing device and the cache memory can be accessed internally in one clock cycle, providing higher processing speed.
The peripheral set on the SH7705 includes a USB function module supporting USB Standard Version 1.1 including a USB transceiver, high-speed serial interfaces with a 64byte FIFO, an MMU and DMAC, a memory interface such as synchronous DRAM, and an IrDA Version 1.0 interface for infra-red communication.
Control, interrupt, and bulk transfers are supported by the USB function, with a fast data transfer capability of maximum 12Mbit/s.
The inclusion of these peripherals on-chip can enable lower cost, lower power consumption and higher performance end products.
The new SH7705 microprocessor is available in two packages, a 28 x 28mm, 208-pin LQFP and a 12 x 12mm, 208-pin chip scale package (CSP).
On-chip debugging functions (H-UDI and AUD) are incorporated, enabling real-time emulation to be carried out at the maximum operating frequency using a JTAG emulator.
In addition, Hitachi's SolutionEngine application development platform is available to facilitate speedy and efficient software development for the SH7705.
(This was Electronicstalk's Top Story on 26 July 2002).
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