89E516RD View Datasheet(PDF) - Microchip Technology

Part Name

Description

View to exact match

89E516RD

FlashFlex MCU / SST89E516RD

Microchip Technology 

FlashFlex MCU

SST89E516RD2 / SST89E516RD

SST89V516RD2 / SST89V516RD

Memory Organization

The device has separate address spaces for program and data memory.

Data Sheet

Program Flash Memory

There are two internal flash memory blocks in the device. The primary flash memory block (Block 0)

has 64 KByte. The secondary flash memory block (Block 1) has 8 KByte. Since the total program

address space is limited to 64 KByte, the SFCF[1:0] bit are used to control program bank selection.

Please refer to Figure 6 for the program memory configuration. Program bank selection is described in

the next section.

The 64K x8 primary SuperFlash block is organized as 512 sectors, each sector consists of 128 Bytes.

The 8K x8 secondary SuperFlash block is organized as 64 sectors, each sector consists also of 128

Bytes.

For both blocks, the 7 least significant program address bits select the byte within the sector. The

remainder of the program address bits select the sector within the block.

FFFFH

EA# = 0

EA# = 1

SFCF[1:0] = 00

FFFFH

EA# = 1

SFCF[1:0] = 01, 10, 11

FFFFH

External

64 KByte

56 KByte

Block 0

64 KByte

Block 0

0000H

2000H

1FFFH

0000H

Figure 6: Program Memory Organization

8 KByte

Block 1

0000H

1273 F01.0

©2013 Silicon Storage Technology, Inc.

11

DS25093B

02/13

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