HT56RB688_13 datasheet(8/164 Pages) HOLTEK

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General Description

The TinyPower

TM A/D Type 8-bit high performance RISC architecture microcontroller with

LCD/LED driver is specifically designed for applications that interface directly to analog signals and

which require an LCD or LED interface. The device includes analog features such as an integrated

multi-channel Analog to Digital Converter, 12-bit Digital to Analog Converter, LCD/LED driver,

DC/DC Converter and LDO.

With their fully integrated SPI and I

2C functions, designers are provided with a means of easy

communication with external peripheral hardware. The benefits of integrated analog features such as

A/D, LCD, etc., 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 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 device contains a USB Full-speed interface to allow data communication with an external USB

host controller. It is particularly suitable for applications which require data communication between

PCs and peripheral USB hardware. This device also includes a Smartcard Interface, which is

compatible with and certified to ISO 7816 standards, to provide communication with various types of

Smart Card.

The unique Holtek TinyPower technology also offers the advantages of 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

Rev. 1.10

April 15, 2013

HT56RB688

TinyPowerTM A/D type Smart Card OTP MCU

with LCD, DAC, ISO 7816 and USB Interfaces

O T P

P r o g r a m m i n g

C i r c u i t r y

W a t c h d o g

T i m e r

W a t c h d o g

T i m e r O s c i l l a t o r

8 - b i t

R I S C

M C U

C o r e

R e s e t

C i r c u i t

I n t e r r u p t

C o n t r o l l e r

E x t e r n a l

X T A L / R C

O s c i l l a t o r

A / D

C o n v e r t e r

S m a r t c a r d

I n t e r f a c e

E x t e r n a l

3 2 . 7 6 8 k H z

O s c i l l a t o r

I n t e r n a l R C

O s c i l l a t o r

I / O

P o r t s

D a t a

M e m o r y

O T P

P r o g r a m

M e m o r y

S t a c k

U S B

L o w

V o l t a g e

R e s e t

L o w

V o l t a g e

D e t e c t

D / A

C o n v e r t e r

D C / D C

C o n v e r t e r

L D O

T i m e r s

S I M s

P F D

P W M

L E D / L E D

D R i v e r

HT56RB688 Datasheet(PDF) 8 Page - Holtek Semiconductor Inc

HT56RB688 Datasheet(HTML) 8 Page - Holtek Semiconductor Inc

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