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参数资料
| 型号： | M50FW040K5G |
| 厂商： | 意法半导体 |
| 英文描述： | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| 中文描述： | 4兆位（512 KB的× 8，均匀块）3 - V电源供电的闪存固件枢纽 |
| 文件页数： | 21/53页 |
| 文件大小： | 278K |
| 代理商： | M50FW040K5G |
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M50FW040
Bus operations
21/53
Table 5.
Figure 7.
FWH Bus Write waveforms
FWH bus Write field definitions
Clock
Cycle
Number
Clock
Cycle
Count
Field
FWH0-
FWH3
Memory
I/O
Description
1
1
START
1110b
I
On the rising edge of CLK with FWH4 Low, the
contents of FWH0-FWH3 indicate the start of a
FWH Write Cycle.
2
1
IDSEL
XXXX
I
Indicates which FWH Flash Memory is selected.
The value on FWH0-FWH3 is compared to the
IDSEL strapping on the FWH Flash Memory pins to
select which FWH Flash Memory is being
addressed.
3-9
7
ADDR
XXXX
I
A 28-bit address phase is transferred starting with
the most significant nibble first.
10
1
MSIZE
0000b
I
Always 0000b (single byte transfer).
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 FWH0-FWH3 to 1111b to indicate
a turnaround cycle.
14
1
TAR
1111b
(float)
O
The FWH Flash Memory takes control of FWH0-
FWH3 during this cycle.
15
1
SYNC
0000b
O
The FWH Flash Memory drives FWH0-FWH3 to
0000b, indicating it has received data or a
command.
16
1
TAR
1111b
O
The FWH Flash Memory drives FWH0-FWH3 to
1111b, indicating a turnaround cycle.
17
1
TAR
1111b
(float)
N/A
The FWH Flash Memory floats its outputs and the
host takes control of FWH0-FWH3.
AI03441
CLK
FWH4
FWH0-FWH3
Number of
clock cycles
START
IDSEL
ADDR
MSIZE
DATA
TAR
SYNC
TAR
1
1
7
1
2
2
1
2
相关PDF资料 |
PDF描述 |
|---|---|
| M50FW040K5P | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50FW040K5TG | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50FW040K5TP | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50FW040N5G | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M50FW040K5P | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50FW040K5T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW040K5TG | 功能描述:闪存 SERIAL FLASH RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| M50FW040K5TP | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50FW040N | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
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