Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Renesas Technology Europe | Subject: H8SX/1657F
Edited by the Electronicstalk Editorial
Team on 14 May 2004
MCU embeds a bigger Flash
The H8SX/1657F is a 32bit CISC microcontroller which offers 768Kbyte on-chip Flash memory.
The H8SX/1657F is a 32bit CISC microcontroller which offers 768Kbyte on-chip Flash memory The H8SX/1657F is the first general-purpose microcontroller to incorporate such large on-chip Flash memory
This article was originally published on Electronicstalk on 15 Apr 2004 at 8.00am (UK)
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The H8/38004F MCU offers extremely low power consumption together with 32Kbyte single-supply on-chip Flash memory and is the first in the SLP series that is available in a 64-pin quad flatpack.
It has been developed for advanced consumer and industrial applications such as PC peripherals, office automation, electronic point-of-sale terminals, and home automation.
The device offers excellent value-for-money as it employs Renesas Technology's new Flash technology, which helps to reduce the cost adder for embedded Flash significantly.
The 768Kbyte on-chip Flash memory can be accessed in just one cycle, enabling storage of large system programs that perform complex control functions, plus high-speed program processing.
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The provision of Flash memory allows lower system cost and more compact systems to be achieved by reducing the number of external parts required, while the ability to rewrite Flash memory programs in-system simplifies program modifications and helps shorten system development time.
The H8SX/1657F employs a 0.18-micron CMOS process and is based on the H8SX 32bit CISC CPU core, which was developed from the H8S 16bit microcontroller CPU to meet the demand for greater CISC microcontroller power and functionality.
The core has 32bit ALU and internal bus width and offers a high processing performance of 35MIPS (Dhrystone 1.1) at a 35MHz maximum operating frequency.
It also offers an improvement in ROM code efficiency of approximately 20% compared with the H8S CPU.
The CPU core includes new and enhanced instructions in addition to those of the current H8S family instruction set and has 11 addressing modes.
It is upward compatible with that of the 16bit microcontrollers H8/300H and H8S family, enabling existing software resources to be used.
The H8SX/1657F is the second phase product to the initial H8SX/1650, with which it is pin-compatible.
The new device incorporates a DMAC (direct memory access controller) in addition to the H8SX/1650 peripheral function set.
This offers greater ease of use through such features as an extended repeat area function that performs data transfers repeatedly to the same area and an offset addition function that simplifies setting of transfer source and destination addresses.
The H8SX/1657F uses a 120-pin TQFP package (0.4mm pin pitch).
The device is supported by the E6000H full emulator.
An evaluation kit will be released in Q3 2004.
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