Hitachi, Ltd. (TSE: 6501) today announced three F-ZTAT(TM)*1 microcomputers - the
SH7054F, SH7053F, and SH7052F - with an on-chip controller area network (CAN*2: an in-
vehicle LAN standard) interface and 384/256-kbyte on-chip flash memory, as additions to the
SH7050 Series of 32-bit single-chip RISC microcomputers for automotive equipment.
Sample shipments will begin in March 2000 in Japan.
The current trend of a control field in the automotive equipment is from serial
communication to networks using fast and highly reliable CAN. CANs are already used as
the in-vehicle LAN standard in Europe, and are also coming into use as standard in-vehicle
LANs in Japan and the USA. Because of their extremely high safety standards,
communication systems using a CAN are also becoming more widely used in FA and other
industrial fields, and also for medical equipment that requires a high degree of safety and
reliability. This trend has brought a growing demand for microcomputers with an on-chip
CAN interface.
At the same time, to shorten development and improvement time-frames for CAN-
connectable equipment, there is a growing need for microcomputers with on-chip flash
memory that allows easy modification of control programs and data.
In response to this demand, Hitachi has previously released the SH7055F, incorporating two
HCAN*3 channels, 512-kbyte flash memory, and 32-kbyte RAM, as a SuperH(TM) RISC
engine family*4 32-bit RISC microcomputer for automotive applications.
Now, Hitachi has extended the product lineup with the development of three compact models
of the SH7055F, provided with a single HCAN channel: the SH7054F (384-kbyte flash
memory, 16-kbyte RAM), SH7053F (256-kbyte flash memory, 16-kbyte RAM), and
SH7052F (256-kbyte flash memory, 12-kbyte RAM).
These three new models have a high-performance 32-bit SH-2 core, and use 0.35 um CMOS
process. The maximum operating frequency is 40 MHz and it enables to be accessed the on-
chip flash memory in one cycle. As with previous F-ZTAT(TM) microcomputers, the flash
memory is divided into large and small blocks, and supports erasure only of those blocks that
need to be erased , in addition to total erasure.
Comprehensive on-chip peripheral functions include powerful timer functions provided by an
Advanced Timer Unit-II (ATU-II), ideally suited to engine control, comprising nine free-
running counters, 16 down-counters, and eight PWM*5 counters, plus a single-channel
watchdog timer that can also be used as an interval timer, and a two-channel compare match
timer.
Two on-chip A/D converters provide +/-2 LSB conversion accuracy with 10-bit resolution on
16 analog input channels. This makes it possible to process analog signals from a number of
sensors, and to implement high-functionality, high-accuracy system control.
Two power supply voltages, 5 V and 3.3 V, are used. Peripheral I/O pins operate at 5.0 V,
while the CPU and other internal logic, and also the bus interface, operate at 3.3 V, for lower
power consumption.
The package is a 208-pin plastic QFP that enables system size to be small and reduces system
cost.
Hitachi plans to further extend the product lineup in the future with models offering a higher
CPU operating frequency and larger memory capacity, as well as enhanced peripheral
functions.
The following software and hardware products are available to provide a development
environment.
Software
Cross C compiler, cross assembler, linkage editor, librarian, simulator, debugger, etc.
Hardware
E8000 realtime simulator
Notes: 1. F-ZTAT (Flexible Zero Turn-Around Time) is a trademark of Hitachi, Ltd.
2. CAN: Controller Area Network. A network specification for use in vehicles,
proposed by Robert Bosch GmbH of Germany.
3. HCAN: Hitachi Controller Area Network. A CAN compliant with the Bosch
CAN Ver. 2.0B active specification, featuring full CAN support and a
16-message buffer.
4. SuperH is a trademark of Hitachi, Ltd.
5. PWM: Pulse Width Modulation
< Typical Applications >
Automotive: Engine control, AT control, stability control, etc.
Industrial: FA, sequencers, NC, etc.
< Prices in Japan > (For Reference Only)
Product Code Sample Unit Price (Yen)
SH7054F (HD64F7054F) 3,900
SH7053F (HD64F7053F) 3,800
SH7052F (HD64F7052F) 3,700
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