Tiny series 16-bit single-chip microcontroller with CAN interface
Left: H8/36057F Right: H8/36037F
Tokyo, September 5, 2002 Hitachi, Ltd. (TSE: 6501) today announced low-pin-count, small-package 16-bit single-chip microcontrollers with an on-chip CAN interface, for use in in-vehicle equipment such as door modules and airbags, as additions to the lineup of microcontrollers supporting the CAN*1 in-vehicle network standard. A total of 16 models are being released, eight in the H8/36057 Series and eight in the H8/36037 Series. Sample shipments of the four F-ZTATTM*2 models with on-chip flash memory will begin in January 2003 in Japan, with volume production of the 12 mask ROM models scheduled to start in August 2003 in Japan.
The trend in communications between devices in the equipment control field, including in-vehicle devices and FA and similar industrial products, is away from serial communication between directly connected devices to network communication via a high-speed, high-reliability CAN. Hitachi has previously released a range of sophisticated CAN-oriented products in the SuperHTM*3 32-bit RISC microcomputer family and the H8S Series of high-end 16-bit microcontroller models. However, there is strong demand in small-scale-function systems such as door modules and air-pressure sensors for low-pin-count, small-package, CAN-oriented microcontrollers that will make it possible to use a smaller mounting area and achieve a major reduction in system cost.
In response to this market need, Hitachi has developed the H8/36057 Series and H8/36037 Series with an on-chip CAN interface in the H8/300H Tiny Series*4 of low-pin-count (maximum 64-pin), small-package, 16-bit single-chip microcontrollers that comprises products for use in a variety of fields. These series feature an H8/300H 16-bit CPU core and a 0.35-micron process, together with two serial communication interface channels in the H8/36057 Series and a single channel in the H8/36037 Series. Major features of these series are summarized below.
< Features >
|| Enhanced in-vehicle network oriented functions, including CAN interface and LIN*5 supportting, making these microcontrollers ideal for use in in-vehicle equipment and enabling excellent cost-performance to be achieved
The CAN interface incorporates a Tiny HCAN*6 with a 1 Mbps (bit per second) maximum transfer speed and a small-scale-function system oriented 4-buffer configuration for the message buffer. A LIN low-speed in-vehicle network for switching and similar operational control of can also be available to support, enabling a H8/36057 Series or H8/36037 Series model to be used as a LIN master microcontroller. These features make these new models suitable for use in safety systems such as airbags and air-pressure sensors, vehicle-body control systems including light control, and security systems such as antitheft devices, and make it possible to implement systems offering excellent cost-performance.
||Lower system-power-consumption achieved through the use of an RC oscillation circuit and subtimer
In addition to the system clock oscillation circuit, these models include an RC oscillation circuit for low-speed operation subclock use and a subtimer that operates on this clock. This facility is useful in a system such as keyless entry, for example, in which the system clock, CPU, and peripheral modules are halted and only the subtimer operates, activating the CPU periodically. Current dissipation in this mode is an ultra-low 50µA (typ.). These features make it possible to reduce parts costs and achieve lower system-power-consumption.
|| Range of memory sizes offering a selection of models to suit various systems.
A variety of memory sizes are offered in each series, with F-ZTAT versions incorporating flash memory available in two models--32 and 16 Kbytes--and mask ROM versions in six models--56, 48, 40, 32, 24, and 16 Kbytes--offering a selection of memory capacities to suit systems of various sizes. F-ZTAT version flash memory can be programmed and erased using a single power supply, enabling control programs, system adjustment data, and so forth to be rewritten on-board, for shorter system development times. The user can select the ideal model for a particular application system from this varied product lineup.
|| Comprehensive peripheral functions that help to lower system cost
These series include a variety of on-chip peripheral functions. In addition to sophisticated timers, a 10-bit A/D converter, an asynchronous/synchronous serial interface, and large-current pins, a 4-wire synchronous serial communication unit (SSU) is included as a new module, simplifying communication with an external device such as EEPROM or a sensor. A power-on reset function and low-voltage detection function are also available as options. These new models can thus be used in products susceptible to fluctuation of the supplied voltage, such as battery-powered systems, and products requiring protection in such cases, enabling the number of external parts to be decreased and system cost to be reduced.
The small size E10T on-chip debugger emulator is available as a development environment, allowing program debugging to be carried out with the H8/36057 Series or H8/36037 Series chip mounted on a board.
Two package types are offered: a small LQFP-64 (10 mm × 10 mm) and a QFP-64 (14 mm × 14 mm). The H8/36057 Series and H8/36037 Series feature similar pin arrangement with other H8/300H Tiny Series products, facilitating a switch to models in these series.
Future plans call for furtherenhance of the product lineup to meet evolving market needs, with the development of models offering increased memory capacity and models featuring enhanced peripheral functions and interface functions.
||CAN: Controller Area Network. A network specification for use in vehicles, proposed by Robert Bosch Gmbh of Germany.
||F-ZTAT (Flexible Zero Turn-Around Time) is a trademark of Hitachi, Ltd.
||SuperH is a trademark of Hitachi, Ltd.
H8/300H Tiny Series: A low-pin-count (maximum 64-pin), small-package microcontroller product series incorporating a Hitachi H8/300H high-performance 16-bit CPU core. These devices have capabilities that enable them to be used as a sub-microcontroller in a large-scale-function product or the main microcontroller in a small-scale-function product, and feature excellent cost-performance.
H8/300H Tiny Series Home Page URL
||LIN: Local Interconnect Network. An in-vehicle low-speed network for switching or operating systems, with a maximum transfer speed of 20 kbps (bits per second). The maximum number of connections in one network is 16, and a single-master/multi-slave system is used, comprising one master that controls the network and up to 15 slaves.
||Tiny HCAN: Tiny Hitachi Controller Area Network. A FULL CAN compatible/4-message-buffer network compliant with the Bosch CAN Ver. 2.0B active specification.
< Typical Applications >
< Prices in Japan >(For Reference)
- Automotive electrical equipment (door modules, air bags, passenger detection, air-pressure sensors, light control, keyless entry systems, antitheft devices, etc.), motorcycle engine control, etc.
- Industrial equipment and FA equipment (device networks, etc.)
(1) F-ZTATTM Versions
(2) Mask ROM Versions
(1) F-ZTATTM Versions
(2) Mask ROM Versions
< Specifications >
Note: * Tiny HCAN: Tiny Hitachi Controller Area Network