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  Holtek Semiconductor Electronic Components Datasheet  

HT56R688 Datasheet

TinyPower A/D Type

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HT56R688 pdf
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HT56R67/HT56R668/HT56C668
HT56R678/HT56C678/HT56R688
TinyPowerTM A/D Type with LCD 8-Bit MCU
Technical Document
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
fSYS=100kHz: 2.2V~5.5V
fSYS=4MHz: 2.2V~5.5V
fSYS=8MHz: 3.0V~5.5V
fSYS=12MHz: 4.5V~5.5V
· Operating current:
fSYS=1MHz at 3V, 170mA, typ.
· OTP Program Memory: 16K´16 ~ 48K´16
· RAM Data Memory: 2304´8
· 24 to 32 bidirectional I/O lines
· TinyPower technology for low power operation
· Three pin-shared external interrupts lines
· Multiple programmable Timer/Event Counters
with overflow interrupt and 7-stage prescaler
· External Crystal, RC and 32768 XTAL oscillators
· Fully integrated RC 32kHz oscillator
· Externally supplied system clock option
· Watchdog Timer function
· PFD/Buzzer for audio frequency generation
· Dual Serial Interfaces: SPI and I2C
· LCD and LED driver function
· 4 operating modes: normal, slow, idle and sleep
· 8-channel 12-bit resolution A/D converter
· 4-channel 12-bit PWM outputs
· Low voltage reset function: 2.1V, 3.15V, 4.2V
· Low voltage detect function: 2.2V, 3.3V, 4.4V
· Bit manipulation instruction
· Table read instructions
· 63 powerful instructions
· Up to 0.33ms instruction cycle with 12MHz system
clock at VDD=5V
· Multiple level subroutine nesting
· All instructions executed in one or two machine
cycles
· Power down and wake-up functions to reduce power
consumption
· Wide range of available package types
General Description
These TinyPowerTM A/D Type with LCD 8-bit high perfor-
mance RISC architecture microcontrollers are specifi-
cally, designed for applications that interface directly to
analog signals and which require an LCD or LED inter-
face. The devices include an integrated multi-channel An-
alog to Digital Converter, Pulse Width Modulation outputs
and an LCD/LED driver.
With their fully integrated SPI and I2C functions, design-
ers are provided with a means of easy communication
with external peripheral hardware. The benefits of inte-
grated A/D, LCD, and PWM 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 in-
dustrial application areas. Some of these products
could include electronic metering, environmental moni-
toring, handheld instruments, electronically controlled
tools, motor driving in addition to many others.
The unique Holtek TinyPower technology also gives the
devices extremely low current consumption characteris-
tics, 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 applica-
tions require a minimum of external components.
Mask type devices, the HT56C668 and HT56C678, are
also available for volume production products.
Rev. 1.20
1 March 4, 2010


  Holtek Semiconductor Electronic Components Datasheet  

HT56R688 Datasheet

TinyPower A/D Type

No Preview Available !

HT56R688 pdf
www.DataSheet4U.com
HT56R67/HT56R668/HT56C668/HT56R678/HT56C678/HT56R688
Selection Table
Most features are common to all devices, the main feature distinguishing them are Program Memory capacity, I/O count,
stack capacity and package types. The following table summarises the main features of each device.
Part No.
VDD
Program Data
Memory Memory
I/O
Timer
LCD
8-bit 16-bit
A/D
PWM Stack Package
HT56R67
2.2V~
5.5V
32K´16
2304´8
32
48´4
or
3
49´3
52QFP,
1 12-bit´8 12-bit´4 12 64LQFP,
100QFP
HT56R668
HT56C668
HT56R678
HT56C678
2.2V~
5.5V
16K´16
32K´16
2304´8
64´16
24 or 3
72´8
1
12-bit´8 12-bit´4
12
100QFP,
128QFP
HT56R688*
48K´16
* Under development, available in 3Q, 2010
Note: 1. Part numbers including a ²C² are mask version devices while ²R² are OTP decives.
2. For devices that exist in more than one package formats, the table reflects the situation for the larger
package.
Block Diagram
I/O
P o rts
L C D /L E D
D r iv e r
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
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
I2C /S P I
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
PW M
G e n e ra to r
W a tc h d o g
T im e r O s c illa to 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
R C /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. 1.20
2 March 4, 2010


Part Number HT56R688
Description TinyPower A/D Type
Maker Holtek Semiconductor
Total Page 30 Pages
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