HT45R4U Datasheet, PDF (7/105 Pages) Holtek Semiconductor Inc – TinyPowerTM A/D Type e-Banking ASSP OTP MCU with LCD

HT45R4U
TinyPower^TM A/D Type
e-Banking ASSP OTP MCU with LCD
General Description
The TinyPower^TM A/D Type with LCD 8-bit high performance RISC architecture microcontroller is
specifically, designed for applications that interface directly to analog signals and which require an LCD
interface. The device includes an integrated multi-channel Analog to Digital Converter and an LCD
driver.
The benefits of integrated A/D and LCD functions, in addition to low power consumption, high
performance, I/O flexibility and low-cost, provides the device with the versatility for a wide range
of products in the home appliance and industrial application areas. Some of these products could
include electronic metering, environmental monitoring, handheld instruments, electronically
controlled tools, motor driving in addition to many others.
The unique Holtek TinyPower technology also gives the device extremely low current consumption
characteristics, an extremely important consideration in the present trend for low power battery
powered applications. The usual Holtek MCU features such as power down and wake-up functions,
oscillator options, programmable frequency divider, etc. combine to ensure user applications require
a minimum of external components.
Block Diagram
O TP
P r o g r a m m in g
C ir c u itr y
Low
V o lta g e
R eset
Low
V o lta g e
D e te c t
W a tc h d o g
T im e r
8 - b it
R IS C
M CU
C o re
I/O
P o rts
O TP
P ro g ra m
M e m o ry
RAM
D a ta
M e m o ry
S ta c k
LC D
D r iv e r
T im e
B ases
T im e r s
P r o g r a m m a b le
F re q u e n c y
G e n e ra to r
In te rn a l R C
O s c illa to r
A /D
C o n v e rte r
R eset
C ir c u it
In te rru p t
C o n tr o lle r
E x te rn a l
C ry s ta l
O s c illa to r
E x te rn a l R T C
O s c illa to r
Rev. 1.10
7
March 12, 2015