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參數(shù)資料
| 型號(hào)： | M95040-WMN6TP |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | EEPROM |
| 英文描述： | 4Kbit, 2Kbit and 1Kbit Serial SPI Bus EEPROM With High Speed Clock |
| 中文描述： | 4Kbit，2Kbit和1Kbit SPI總線串行EEPROM的高速時(shí)鐘 |
| 文件頁(yè)數(shù)： | 37/37頁(yè) |
| 文件大?。?/td> | 586K |
| 代理商： | M95040-WMN6TP |
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M95040, M95020, M95010
OPERATING FEATURES
Power-up
When the power supply is turned on, VCC rises
from VSS to VCC.
During this time, the Chip Select (S) must be al-
lowed to follow the VCC voltage. It must not be al-
lowed to float, but should be connected to VCC via
a suitable pull-up resistor.
As a built in safety feature, Chip Select (S) 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 op-
eration.
Power-down
At Power-down, the device must be deselected.
Chip Select (S) should be allowed to follow the
voltage applied on VCC.
Active Power and Standby Power Modes
When Chip Select (S) is Low, the device is select-
ed, and in the Active Power mode. The device
When Chip Select (S) is High, the device is dese-
lected. If an Erase/Write cycle is not currently in
progress, the device then goes in to the Standby
Power mode, and the device consumption drops
to ICC1.
Hold Condition
The Hold (HOLD) signal is used to pause any se-
rial communications with the device without reset-
ting the clocking sequence.
During the Hold condition, the Serial Data Output
(Q) is high impedance, and Serial Data Input (D)
and Serial Clock (C) are Don’t Care.
To enter the Hold condition, the device must be
selected, with Chip Select (S) Low.
Normally, the device is kept selected, for the whole
duration of the Hold condition. Deselecting the de-
vice while it is in the Hold condition, has the effect
of resetting the state of the device, and this mech-
anism can be used if it is required to reset any pro-
cesses that had been in progress.
The Hold condition starts when the Hold (HOLD)
signal is driven Low at the same time as Serial
Clock (C) already being Low (as shown in Figure
The Hold condition ends when the Hold (HOLD)
signal is driven High at the same time as Serial
Clock (C) already being Low.
Figure 6. also shows what happens if the rising
and falling edges are not timed to coincide with
Serial Clock (C) being Low.
Figure 6. Hold Condition Activation
AI02029D
HOLD
C
Hold
Condition
Hold
Condition
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M95040-WMN6TP/G | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Kbit, 2 Kbit and 1 Kbit Serial SPI bus EEPROM with high speed Clock |
| M95040-WMN6TP/S | 制造商:STMicroelectronics 功能描述:EEPROM SERL-SPI 4KBIT 512X8 3.3V/5V 8PIN SO N - Tape and Reel |
| M95040-WMN6TP/W | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4Kbit, 2Kbit and 1Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95040-WMN6TP-CUT TAPE | 制造商:ST 功能描述:M95040 Series 4 Kb (512 x 8) 5.5 V Serial SPI Bus EEPROM with High-Speed Clock |
| M9505 | 制造商:Tamura Corporation of America 功能描述: |
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