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參數(shù)資料
| 型號(hào)： | AT25320-10PI |
| 廠商： | ATMEL CORP |
| 元件分類： | DRAM |
| 英文描述： | SPI Serial EEPROMs |
| 中文描述： | 4K X 8 SPI BUS SERIAL EEPROM, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大小： | 172K |
| 代理商： | AT25320-10PI |
AT25080/160/320/640
6
Serial Interface Description
MASTER:
The device that generates the serial clock.
SLAVE:
Because the Serial Clock pin (SCK) is always an
input, the AT25080/160/320/640 always operates as a
slave.
TRANSMITTER/RECEIVER:
The AT25080/160/320/640
has separate pins designated for data transmission (SO)
and reception (SI).
MSB:
The Most Significant Bit (MSB) is the first bit trans-
mitted and received.
SERIAL OP-CODE:
After the device is selected with CS
going low, the first byte will be received. This byte contains
the op-code that defines the operations to be performed.
INVALID OP-CODE:
If an invalid op-code is received, no
data will be shifted into the AT25080/160/320/640, and the
serial output pin (SO) will remain in a high impedance state
until the falling edge of CS is detected again. This will reini-
tialize the serial communication.
CHIP SELECT:
The AT25080/160/320/640 is selected
when the CS pin is low. When the device is not selected,
data will not be accepted via the SI pin, and the serial out-
put pin (SO) will remain in a high impedance state.
HOLD:
The HOLD pin is used in conjunction with the CS
pin to select the AT25080/160/320/640. When the device is
selected and a serial sequence is underway, HOLD can be
used to pause the serial communication with the master
device without resetting the serial sequence. To pause, the
HOLD pin must be brought low while the SCK pin is low. To
resume serial communication, the HOLD pin is brought
high while the SCK pin is low (SCK may still toggle during
HOLD). Inputs to the SI pin will be ignored while the SO pin
is in the high impedance state.
WRITE PROTECT:
The write protect pin (WP) will allow
normal read/write operations when held high. When the
WP pin is brought low and WPEN bit is “1”, all write opera-
tions to the status register are inhibited. WP going low
while CS is still low will interrupt a write to the status regis-
ter. If the internal write cycle has already been initiated, WP
going low will have no effect on any write operation to the
status register. The WP pin function is blocked when the
WPEN bit in the status register is "0". This will allow the
user to install the AT25080/160/320/640 in a system with
the WP pin tied to ground and still be able to write to the
status register. All WP pin functions are enabled when the
WPEN bit is set to “1”.
SPI Serial Interface
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT25320-10PI-2.7 | SPI Serial EEPROMs |
| AT25320N-10SC | SPI Serial EEPROMs |
| AT25320N-10SC-1.8 | SPI Serial EEPROMs |
| AT25320N-10SC-2.7 | SPI Serial EEPROMs |
| AT25320N-10SI | SPI Serial EEPROMs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT25320-10PI-1.8 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25320-10PI-2.7 | 功能描述:IC EEPROM 32KBIT 3MHZ 8DIP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:1M (64K x 16) 速度:150ns 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤 |
| AT25320A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25320A-10PE-2.7 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25320A-10PI-1.8 | 功能描述:IC EEPROM 32KBIT 20MHZ 8DIP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:16M（2M x 8，1M x 16） 速度:70ns 接口:并聯(lián) 電源電壓:2.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤 |
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