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參數(shù)資料
| 型號： | M50LPW040 |
| 廠商： | 意法半導體 |
| 英文描述： | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| 中文描述： | 4兆位512KB的× 8，統(tǒng)一座3V電源低引腳數(shù)快閃記憶體 |
| 文件頁數(shù)： | 9/36頁 |
| 文件大小： | 272K |
| 代理商： | M50LPW040 |
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M50LPW040
Table 7. LPC Bus Write Field Definitions
Clock
Cycle
Number
Clock
Cycle
Count
Field
LAD0-
LAD3
Memory
I/O
Description
1
1
START
0000b
I
On the rising edge of CLK with LFRAME Low, the contents
of LAD0-LAD3 must be 0000b to indicate the start of a LPC
cycle.
2
1
CYCTY
PE +
DIR
011Xb
I
Indicates the type of cycle. Bits 3:2 must be 01b. Bit 1
indicates the direction of transfer: 1b for write. Bit 0 is don’t
care (X).
3-10
8
ADDR
XXXX
I
A 32-bit address phase is transferred starting with the most
significant nibble first. A23-A31 must be set to 1. A22 = 1 for
Array, A22 = 0 for registers access. For A19-A21 values,
refer to Table 2.
11-12
2
DATA
XXXX
I
Data transfer is two cycles, starting with the least significant
nibble.
13
1
TAR
1111b
I
The host drives LAD0-LAD3 to 1111b to indicate a
turnaround cycle.
14
1
TAR
1111b
(float)
O
The LPC Flash Memory takes control of LAD0-LAD3 during
this cycle.
15
1
SYNC
0000b
O
The LPC Flash Memory drives LAD0-LAD3 to 0000b,
indicating it has received data or a command.
16
1
TAR
1111b
O
The LPC Flash Memory drives LAD0-LAD3 to 1111b,
indicating a turnaround cycle.
17
1
TAR
1111b
(float)
N/A
The LPC Flash Memory floats its outputs and the host takes
control of LAD0-LAD3.
Figure 6. LPC Bus Write Waveforms
AI04430
CLK
LFRAME
LAD0-LAD3
Number of
clock cycles
START
CYCTYPE
+ DIR
ADDR
DATA
TAR
SYNC
TAR
1
1
8
2
2
1
2
相關PDF資料 |
PDF描述 |
|---|---|
| M50LPW040K | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040K1T | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040K5T | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040N | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040N1T | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M50LPW040K | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040K1 | 功能描述:閃存 3.6V 4M (512Kx8) RoHS:否 制造商:ON Semiconductor 數(shù)據總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結構:256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M50LPW040K1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040K5T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW040N | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
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