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Hitachi MCU offers 1MB on-chip Flash memory

Posted: 03 Oct 2002 ?? ?Print Version ?Bookmark and Share

Keywords:Hitachi? sh7058f? sh7055f? microcontroller unit? automotive mcu?

The SH7058F 32-bit RISC microcontroller from Hitachi Ltd features the industry's fastest operating frequency of 80MHz and the industry's largest class on-chip Flash memory capacity of 1MB, enabling the device to be used in power-train control fields such as automobile engine control and similar industrial equipment control.

Manufactured using a 0.18?m process, the SH7058F is positioned as the successor to the company's SH7055F MCU and also incorporates an SH-2 CPU core from the SuperH family but has twice the operating frequency and on-chip memory of its predecessor.

The 1MB on-chip Flash memory is capable of one-cycle access operation at 80MHz and also features an on-chip Flash memory write/erase program. Flash memory modes comprise the conventional write/erase mode plus a new user boot mode, allowing the user to write the boot operation program following powering-on of the system.

The SH7058F also features a new oscillation halt detection function that can be enabled or disabled by software according to the requirements of the system. When enabled, self-oscillation is started if halt or abnormality of the LSI's oscillation is detected.

Also included are on-chip peripheral functions, an Advanced Timer Unit-II comprising ten free-running counters, 16 down-counters, and eight PWM counters, a watchdog timer channel that can be used as an interval timer, and two compare match timer channels.

Also included is a 10-bit resolution ADC that can achieve a conversion precision of 2LSB and is provided with 32 input channels. CAN support is provided by two HCAN-II channels with each channel using 32 message buffers (one for reception only, and 31 settable for transmission or reception) and uses an independent 16-bit timer, enabling the use of a time trigger transmission function that allows communication to be carried out at high speed and with high reliability.

In addition, the SH7058F includes an on-chip debugging function and the E10A compact emulator or high-functionality E6000 emulator for on-chip debugger use.

The SH7058F is available in a 256-pin QFP casing and is rated for operation over the -40C to 125C temperature range.

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