HT68F20 datasheet(2/232 Pages) HOLTEK

2 / 232 page

Selection Table

Most features are common to all devices, the main feature distinguishing them are Memory capacity, I/O count, TM

features, stack capacity and package types. The following table summarises the main features of each device.

Part No.

VDD

Program

Memory

Data

Memory

Data

EEPROM

I/O

Ext.

Int.

Timer

Module

Interface

(SPI/I

2C)

UART

Stack

Package

HT68F20*

2.2V~

5.5V

´14

´832´818

10-bit CTM

´1,

10-bit STM

´1

ÖÖ

16DIP/NSOP/SSOP

20DIP/SOP/SSOP

HT68F30

2.2V~

5.5V

´14

´864´8

10-bit CTM

´1,

10-bit ETM

´1

16DIP/NSOP/SSOP

20DIP/SOP/SSOP

24SKDIP/SOP/SSOP

HT68FU30

24SKDIP/SOP

HT68F40

2.2V~

5.5V

´15

192

´8

128

´8

10-bit CTM

´1,

10-bit ETM

´1,

16-bit STM

´1

24/28SKDIP/SOP/SSOP

44QFP, 32/40/48QFN

48SSOP

HT68FU40

40/48QFN, 44QFP,

48SSOP

HT68F50

2.2V~

5.5V

´16

384

´8

256

´8

10-bit CTM

´2,

10-bit ETM

´1,

16-bit STM

´1

28SKDIP/SOP/SSOP

44QFP, 40/48QFN

48SSOP

HT68FU50

44QFP, 48QFN

HT68F60*

2.2V~

5.5V

12K

´16

576

´8

256

´8

10-bit CTMx2,

10-bit ETMx1,

16-bit STMx1

44/52QFP, 40/48QFN

48SSOP

HT68FU60*

44/52QFP, 40/48QFN

Note:

As devices exist in more than one package format, the table reflects the situation for the package with the most

pins.

There is an additional peripheral known as the UART module in HT68FU30, HT68FU40, HT68FU50 and

HT68FU60 devices. All information related to the UART Module will be described in the following UART Mod-

ule section.

Block Diagram

HT68F20/HT68F30/HT68F40/HT68F50/HT68F60

HT68FU30/HT68FU40/HT68FU50/HT68FU60

Rev. 1.10

February 1, 2010

F l a s h / E E P R O M

P r o g r a m m i n g

C i r c u i t r y ( I S P )

W a t c h d o g

T i m e 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 R C / H X T

O s c i l l a t o r

L I R C / L X T

O s c i l l a t o r

H I R C

O s c i l l a t o r

S t a c k

E E P R O M

D a t a

M e m o r y

F l a s h

P r o g r a m

M e m o r y

R A M

D a t a

M e m o r y

U A R T

S I M

T M 0

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

T M 1

T M n

C o m p a r a t o r s

T B 0 / T B 1

I / O

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