Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Hitachi Europe | Subject: H8/36057 and H8/36037
Edited by the Electronicstalk Editorial
Team on 14 November 2002
Onboard CAN interfaces put MCUs on the
road
Two new series of low-pin-count small-package 16bit microcontrollers from Hitachi feature on-chip CAN interfaces.
Two new series of low-pin-count (maximum 64-pin) small-package 16bit microcontrollers from Hitachi feature on-chip CAN interfaces The H8/36057 and H8/36037 series are designed for use in automotive electrical equipment such as door modules, airbags and anti-theft devices, as well as industrial and factory automation equipment
This article was originally published on Electronicstalk on 16 Feb 2001 at 8.00am (UK)
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There are 16 new models in the two series, four have on-chip Flash memory (sample shipments start Q3/03) and 12 have on-chip mask ROM (volume production starts Q4/03).
The new microcontrollers are manufactured on a 0.35um process, and all feature an H8/300H Tiny series CPU core along with enhanced in-vehicle network oriented functions that enable excellent cost-performance.
The on-chip CAN interface incorporates a Tiny Hitachi Controller Area Network (HCAN) with a maximum transfer speed of 1Mbit/s and a small-scale-function, system-oriented four-message buffer.
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Local Interconnect Network (LIN) is also supported for switching and similar operational control, and the new devices can be used as a LIN master microcontroller.
The new models include a system clock oscillation circuit and an RC oscillation circuit for low-speed operation subclock use.
A subtimer on the system clock activates the CPU periodically in systems such as keyless entry, where the system clock, CPU, and peripheral modules are halted and only the subtimer operates.
Current dissipation in this mode is an ultra-low 50uA (typically).
This helps to reduce parts costs and achieve lower system power consumption.
Each series offers a selection of memory capacity to suit systems of various sizes.
Flexible zero turn-around time (F-ZTAT) versions of the microcontrollers incorporate either 32 or 56Kbyte Flash memory and mask ROM versions offer either 16, 24, 32, 40, 48, or 56Kbyte.
F-ZTAT version Flash memory can be programmed and erased using a single power supply enabling control programs and system adjustment data to be rewritten onboard and system development times to be shortened.
The new devices have a variety of on-chip peripheral functions.
In addition to sophisticated timers, a 10bit A/D convertor, one or two asynchronous/synchronous serial interfaces, a four-wire synchronous serial communication unit (SSU) is incorporated to simplify communication with external devices such as EEPROM or sensors.
A power-on reset function and low-voltage detection function are also available optionally.
These functions enable use of the new microcontrollers in products susceptible to voltage supply fluctuations, such as battery-powered systems.
This can reduce the number of external parts and the system cost.
The E10T on-chip debugger emulator can be used as a development environment for program debugging, with either series chip-mounted on a board.
The new microcontrollers are available in two packages, a 10 x 10mm 64-pin LQFP or a 14 x 14mm 64-pin QFP.
(This was Electronicstalk's Top Story on 13 November 2002).
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