HT1621 datasheet(11/21 Pages) HOLTEK

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READ Mode (Successive Address Reading)

WRITE Mode (Command Code:101)

WRITE Mode (Successive Address Writing)

Read-Modify-Write Mode (Command Code:101)

HT1621

Rev. 2.60

October 28, 2009

PATENTED

R D

D A T A

C S

W R

0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3

M e m o r y A d d r e s s ( M A ) D a t a ( M A )

D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0

D a t a ( M A + 1 ) D a t a ( M A + 2 ) D a t a ( M A + 3 )

D A T A

C S

W R

1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3

M e m o r y A d d r e s s 1 ( M A 1 ) D a t a ( M A 1 )

1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3

M e m o r y A d d r e s s 2 ( M A 2 ) D a t a ( M A 2 )

D A T A

C S

W R

1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3

M e m o r y A d d r e s s ( M A ) D a t a ( M A )

D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0

D a t a ( M A + 1 ) D a t a ( M A + 2 ) D a t a ( M A + 3 )

D A T A

C S

W R

1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3

M e m o r y A d d r e s s 1 ( M A 1 ) D a t a ( M A 1 )

A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3

M e m o r y A d d r e s s 2 ( M A 2 ) D a t a ( M A 2 )

R D

D 0 D 1 D 2 D 3

D a t a ( M A 1 )

HT1621 Datenblatt(PDF) 11 Page - Holtek Semiconductor Inc