參數(shù)資料
型號(hào)： M95256-RDW6TG
廠商： STMICROELECTRONICS
元件分類： PROM
英文描述： 32K X 8 SPI BUS SERIAL EEPROM, PDSO8
封裝： 0.169 INCH, ROHS COMPLIANT, TSSOP-8
文件頁(yè)數(shù)： 2/44頁(yè)
文件大?。?/td> 386K
代理商： M95256-RDW6TG
Signal description
M95256, M95256-W, M95256-R
3.6
Write Protect (W)
The main purpose of this input signal is to freeze the size of the area of memory that is
protected against Write instructions (as specified by the values in the BP1 and BP0 bits of
the Status Register).
This pin must be driven either high or low, and must be stable during all write instructions.
3.7
VSS ground
VSS is the reference for the VCC supply voltage.
3.8
Supply voltage (VCC)
3.8.1
Operating supply voltage VCC
Prior to selecting the memory and issuing instructions to it, a valid and stable VCC voltage
within the specified [VCC(min), VCC(max)] range must be applied (see Table 7, Table 8 and
Table 9.). This voltage must remain stable and valid until the end of the transmission of the
instruction and, for a Write instruction, until the completion of the internal write cycle (tW). In
order to secure a stable DC supply voltage, it is recommended to decouple the VCC line with
a suitable capacitor (usually of the order of 10 nF to 100 nF) close to the VCC/VSS package
pins.
3.8.2
Power-up conditions
When the power supply is turned on, VCC continuously rises from VSS to VCC. During this
time, the Chip Select (S) line is not allowed to float but should follow the VCC voltage, it is
therefore recommended to connect the S line to VCC via a suitable pull-up resistor (see
In addition, the Chip Select (S) input offers a built-in safety feature, as the S input is edge-
sensitive as well as level-sensitive: after power-up, the device does not become selected
until a falling edge has first been detected on Chip Select (S). This ensures that Chip Select
(S) must have been high, prior to going low to start the first operation.
The VCC rise time must not vary faster than 1 V/s.
When VCC passes over the POR threshold, the device is reset and enters the Standby
Power mode. However, the device must not be accessed until VCC reaches a valid and
stable VCC voltage within the specified [VCC(min), VCC(max)] range.
3.8.3
Device Reset
In order to prevent inadvertent write operations during power-up (continuous rise in VCC), a
power on reset (POR) circuit is included. At power-up, the device does not respond to any
instruction until VCC has reached the power on reset threshold voltage (this threshold is
lower than the minimum VCC operating voltage defined in Table 7, Table 8 and Table 9).
When VCC passes over the POR threshold, the device is reset and enters the following
state:
●
Standby Power mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M95256-RDW6TG/A 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit Serial SPI bus EEPROM with high speed clock
M95256-RDW6TG/K 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit serial SPI bus EEPROM with high-speed clock
M95256-RDW6TG/V 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit Serial SPI bus EEPROM with high speed clock
M95256RDW6TP 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit serial SPI bus EEPROM with high-speed clock
M95256-RDW6TP 功能描述:電可擦除可編程只讀存儲(chǔ)器 256 Kbit Serial Bus 電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
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