Hitachi, Ltd. (TSE: 6501) today announced the H8/3802 Series of 8-bit single-chip
microcomputers for home appliances and health products with a LCD display, featuring an on-
chip LCD controller driver and super-low power consumption, with a standby current of 2.2
uA at a power supply voltage of 1.8 V. Sample shipments will begin in March 2000 in Japan.
Recently, health products such as blood pressure meters and home appliances such as hot-
water pots and rice cookers have been coming down in price while offering undiminished, or
improved, performance and functions. In the case of battery-operated products, the trend is
one of longer battery life through lower power consumption, and smaller sets through a
reduction in the number of component parts.
As a result, there is a growing demand for functions that reduce the number of parts, together
with lower power consumption, for the devices used in these products.
Hitachi has previously released the H8/3887 and 3867 Series, and the H8/3847 and 3827
Series, of super-low-power microcomputers with an 8-bit H8/300L CPU core and on-chip
LCD controller driver.
Now, the new H8/3802 Series offers a compact 64-pin version to strengthen the super-low-
power microcomputer lineup, with the super-low power consumption of a 2.2 uA standby
current at a low power supply voltage of 1.8 V. This extends the operating time of battery-
powered products, and makes it possible to reduce the number of batteries used. At 1.8 V, the
oscillation frequency is 4 MHz, and the internal operation frequency is 2 MHz, resulting in a
high-speed operating four times that of previous Hitachi products.
Previously, personal blood pressure meters, etc., have required an external IC for the high-
voltage to drive the internal motor, while home appliances with LED indicators have used an
external IC for the large-current necessary to increase the LED brightness. However, this new
series includes seven high-voltage ports (7 V) and six large-current ports (three 25 mA and
three 10 mA), making it possible to reduce the number of parts and cut the overall system cost.
The new H8/3802 Series also offers a variety of on-chip peripheral functions including an
LCD controller driver with 4-com x 25-seg display capability, a 10-bit PWM*1 for motor
frequency control, three kinds of timers, a serial communication interface, and a 10-bit-
resolution A/D converter. An asynchronous event counter is also provided on-chip, enabling
A/D-converted asynchronous blood pressure data, for example, to be captured by the
microcomputer.
The product lineup comprises three ZTAT(TM)*2 models with 16-kbyte ROM and 1-kbyte
RAM, and nine mask ROM models with 8 to 16 kbytes ROM and 512 bytes to 1 kbyte RAM.
Three package types--64-pin QFP, LQFP, and DIP--are available, to suit a variety of
applications.
Future plans include the phased release of 80-pin type ZTAT(TM) and mask ROM versions as
high-end models in the H8/3802 Series.
Notes: 1. PWM: Pulse Width Modulation
2. ZTAT(TM): Zero Turn-Around Time. ZTAT is a trademark of
Hitachi, Ltd. in Japan.
<Typical Applications>
Home appliances (temperature display in electric rice cookers, electric hot-water pots, air
conditioners, refrigerators, etc.)
Health products (personal blood pressure meters, scales, body-fat meters, electronic
thermometers, etc)
Communication products (mobile phones, pagers, etc.)
Meters (gas meters, electricity meters, etc.)
<Prices in Japan> (For Reference)
Product Code Package Sample Unit Price (Yen)
ZTAT(TM) version HD6473802H QFP-64 650
HD6473802FP LQFP-64 700
HD6473802P DIP-64S 700
Mask ROM version HD6433802H QFP-64 300
HD6433802FP LQFP-64 340
HD6433802P DIP-64S 340
HD6433801H QFP-64 290
HD6433801FP LQFP-64 330
HD6433801P DIP-64S 330
HD6433800H QFP-64 280
HD6433800FP LQFP-64 320
HD6433800P DIP-64S 320
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