SST89E58RD2A(2011) Просмотр технического описания (PDF) - Silicon Storage Technology

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SST89E58RD2A
(Rev.:2011)

FlashFlex MCU

Silicon Storage Technology 

A Microchip Technology Company

2FFH

FlashFlex MCU

SST89E54RD2A/RDA / SST89E58RD2A/RDA

Not Recommended for New Designs

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

Figure 7: Internal and External Data Memory Structure

EXTRAM = 1

1339 F05.0

©2011 Silicon Storage Technology, Inc.

15

DS25114A

12/11

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