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參數(shù)資料
| 型號： | TMS28F004AFT90BDCDL |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| 中文描述： | 524288按8-BIT/262144由16位自動選擇啟動塊閃存 |
| 文件頁數(shù)： | 6/80頁 |
| 文件大?。?/td> | 1080K |
| 代理商： | TMS28F004AFT90BDCDL |
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TMS28F004Axy, TMS28F400Axy
524288 BY 8-BIT/
262
144 BY 16-BIT
AUTO-SELECT BOOT-BLOCK FLASH MEMORIES
SMJS829A – JANUARY 1996 – REVISED AUGUST 1997
6
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
functional block diagram
Counter
Address
Address
Latch
Control
Reduction
Power-
X Decoder
Y Decoder
Y Gating/Sensing
Block
Main
128K-Byte
Block
Main
96K-Byte
Block
Parameter
8K-Byte
Block
Parameter
8K-Byte
Block
Boot
16K-Byte
I/O Logic
Program/
Erase
Voltage
Switch
Machine
State
Write
Machine
State
Command
Data
Comparator
Register
Data
Input
Buffer
Input
Buffer
Register
Status
Register
Identification
Multiplexer
Output
Input Buffer
DQ15/A–1
Output
Buffer
Buffer
Output
DQ8–DQ15/A–1
DQ0–DQ7
A0–
A17
BYTE
E
W
G
RP
WP
VPP
Input
Buffer
17
8
8
8
Block
Main
128K-Byte
Block
Main
128K-Byte
architecture
The TMS28F400Axy uses a blocked architecture to allow independent erasure of selected memory blocks. The
block to be erased is selected by using any valid address within that block.
block memory maps
The TMS28F400Axy is available with the block architecture mapped in either of two configurations: the boot
block located at the top or at the bottom of the memory array, as required by different microprocessors. The
TMS28F400AxB (bottom boot block) is mapped with the 16K-byte boot block located at the low-order address
range (00000h to 01FFFh). The TMS28F400AxT (top boot block) is inverted with respect to the TMS28F400AxB
with the boot block located at the high-order address range (3E000h to 3FFFFh). Both of these address ranges
are for word-wide mode. Figure 1 and Figure 2 show the memory maps for these configurations. The
TMS28F004Axy is mapped as the 8-bit configuration of the TMS28F400Axy, except that the least significant
bit (LSB) is A0 instead of A
–1
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TMS28F004AFT90CDBJL | 524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AFT90CDCDL | 524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AMB60BDBJL | 524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AMB60CDBJL | 524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AMB70BDBJL | 524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMS28F004AFT90CDBJL | 制造商:TI 制造商全稱:Texas Instruments 功能描述:524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AFT90CDCDL | 制造商:TI 制造商全稱:Texas Instruments 功能描述:524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AMB60BDBJL | 制造商:TI 制造商全稱:Texas Instruments 功能描述:524288 BY 8-BIT/262144 BY 16-BIT AUTO-SELECT BOOT-BLOCK FLASH MEMORIES |
| TMS28F004AMB60BDCDE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
| TMS28F004AMB60BDCDL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Flash EEPROM |
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