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SST89V516RD2-33-C-PIE

FlashFlex MCU

Silicon Storage Technology 

FlashFlex MCU

SST89E516RD2 / SST89E516RD

SST89V516RD2 / SST89V516RD

Data Sheet

2FFH

Expanded

RAM

768 Bytes

FFH

(Indirect Addressing)

FFH

Upper 128 Bytes

80H

Internal RAM

80H

7FH

Lower 128 Bytes

Internal RAM

(Direct Addressing)

Special

Function

Registers

(SFRs)

000H

(Indirect Addressing)

(Indirect & Direct

00H

Addressing)

FFFFH

(Indirect Addressing) FFFFH

External

Data

Memory

(Indirect Addressing)

External

Data

Memory

2FFH

000H

Expanded RAM

0300H

EXTRAM = 0

0000H

EXTRAM = 1

1273 F02.0

FIGURE 3-2: Internal and External Data Memory Structure

©2007 Silicon Storage Technology, Inc.

15

S71273-03-000

1/07

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