5
Low Power Consumption
Multiple innovative techniques
Top Reasons To S elect H8
H8 Power Consumption: H8/38602
minimize MCU power consumption
? 0.4μA @ 32kHz
? Operatin g volta g es as low as 1.8V
1
1/10
Normal s peed mode (3V, 10MHz)
Module S top, S leep,
Medium- S peed mode
W atch mode
? Up to 8 power-down modes
? Module Standby mode allows software
1/2500
1/20000
(3V, 32 K Hz)
S tandby
mode (3V)
to selectively halt on-chip functions
? D ual clock oscillators with 32kHz
sub-clock
? On-chip oscillators with short
Shorter Crystal Stabilization Time
Loss of Icc
stabilization times (20μs, typically)
? Standby current as low as 0.1μA
On-chip Memory (SRAM)
? Many sizes of on-chip hi g h-speed
SRAM: 256 Bytes to 56KB
? 8KB of JTAG debu g memory
Competitor' s
o s cillation circuit
H8/38602
oscillation circuit
Vcc
Vcc
milli s econd s
20 μ s , typically
can be used for system operation
(allowin g 64KB on-chip SRAM)
High component integration reduces
system cost and design complexity
? Sin g le-cycle access at maximum speed
Industry-standard Serial
Communication Interfaces
? On-chip oscillators as
fast as 40 MHz
available to C P U and
all peripherals
? Internal volta g e
re g ulators eliminate
need for expensive
power circuits
Reset
LVD
On-chip H8
External
CPU
O s cillator
? Certified USB
full-speed and
hi g h-speed;
bus- or self-powered
? Multiple channels of
serial asynchronous/
synchronous interface
? Synchronous serial
unit (SSU) is compat-
ible with Freescale
(Motorola) S P I ?
? I 2 C ? two-wire serial
interface conforms
to P hillips standard
? Ir D A interface for
? Smart Card interface
conforms to
ISO/IEC 7816-3
? Controller Area
Network (CAN 2.0B)
function for hi g hly
reliable networked
embedded systems
H8
MCU PC
CAN USB
I 2 C
H8 H8
MCU MCU
IrDA
? Low-volta g e detect
circuits to monitor
power supplies
efficiently without
additional components
? P ower-on Reset circuit
eliminates external
chip and g uarantees
a clean and reliable
start-up
? Hi g h-current I/Os can
drive LE D s directly
? LC D controllers with
booster circuits drive
hi g her volta g e
displays without
? Lar g e ran g e of
internal reliable flash
memory & hi g h-speed
RAM that suffice
for most system
requirements
Fail-Safe
Features
Internal
Flash &
No R RAM
External
Vcc
POR,
Memory
Re s
No
Xin
Clock
V ss
Many
GPIO Peripheral s
easy wireless line-of-
si g ht connectivity
Peripheral
Chip Array
LED &
Sen s or s
the need of D C- D C
converters
Direct-LED
driving
Versatile
Functionality
相关PDF资料
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