HT56R656 datasheet(2/108 Pages) HOLTEK

2 / 108 page

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

Memory

Data

Memory

I/O

LCD

Timer

A/D

PWM

Stack

Package

Types

8-bit 16-bit

HT56R62

2.2V~

5.5V

´14

128

´8

´4

´3

12-bit

´6 12-bit´3

52QFP,

64LQFP

HT56R65

2.2V~

5.5V

´16

576

´8

´4

´3

12-bit

´8 12-bit´4

52QFP,

64LQFP,

100QFP

HT56R642

2.2V~

5.5V

´15

384

´8

´16

´8

12-bit

´8 12-bit´4

64LQFP

HT56R644

2.2V~

5.5V

´15

576

´8

´16

´8

12-bit

´8 12-bit´4

100QFP

HT56R654

´16

1152

´8

212

HT56R656

2.2V~

5.5V

´16

1152

´8

´16

´8

12-bit

´8 12-bit´4

100QFP

Note:

1. The devices are only available in OTP versions.

2. For devices that exist in more than one package formats, the table reflects the situation for the larger

package.

Block Diagram

HT56R62/HT56R65

HT56R642/HT56R644/HT56R654/HT56R656

Rev. 1.00

July 20, 2009

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

R C / C r y s t a l

O s c i l l a t o r

A / D

C o n v e r t e r

P r o g r a m m a b l e

F r e q u e n c y

G e n e r a t o r

P W M

G e n e r a t o r

E x t e r n a l R T C

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

R A M

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

L C D / L E D

D r i v e r

I 2 C / S P I

T i m e r s

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

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