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| 型号： | SST89E554A-40-C-NJ |
| 厂商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, MS-018AC, LCC-44 |
| 文件页数： | 3/87页 |
| 文件大小： | 996K |
| 代理商： | SST89E554A-40-C-NJ |
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Preliminary Specifications
FlashFlex51 MCU
SST89E554A / SST89V554A
11
2003 Silicon Storage Technology, Inc.
S71228-00-000
6/03
3.0 MEMORY ORGANIZATION
The device has separate address spaces for program and
data memory.
3.1 Program Flash Memory
There are two internal flash memory blocks in the device.
The primary flash memory block (Block 0) has 32 KByte.
The secondary flash memory block (Block 1) has 8 KByte.
Since the total program address space is limited to 32
KByte, the SFCF[1:0] bit are used to control program bank
selection. Please refer to Figure 3-1 for the program mem-
ory configuration. Program bank selection is described in
the next section.
The 32K x8 primary SuperFlash block is organized as 256
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 pro-
gram address bits select the sector within the block.
FIGURE
3-1: PROGRAM MEMORY ORGANIZATION
1228 F03.0
External
64 KByte
EA# = 0
FFFFH
0000H
32 KByte
Block 0
EA# = 1
SFCF[1:0] = 10, 11
FFFFH
0000H
24 KByte
Block 0
8 KByte
Block 1
8 KByte
Block 1
EA# = 1
SFCF[1:0] = 00
FFFFH
2000H
7FFFH
8000H
DFFFH
E000H
DFFFH
E000H
7FFFH
8000H
0000H
1FFFH
External
24 KByte
8 KByte
Block 1
External
24 KByte
External
32 KByte
EA# = 1
SFCF[1:0] = 01
FFFFH
7FFFH
8000H
0000H
32 KByte
Block 0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST89E554RC | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-NI | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-NJ | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-PI | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-PJ | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
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