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參數(shù)資料
| 型號： | FM3808 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | DRAM |
| 英文描述： | 4Kb FRAM Serial 3V Memory |
| 中文描述： | 4Kb的鐵電串行3V的記憶 |
| 文件頁數(shù)： | 26/28頁 |
| 文件大小： | 191K |
| 代理商： | FM3808 |
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FM3808
Rev 1.1
May 2003
Page 26 of 28
INT pin Timing at Power Up
V
DD
V
TP
Register
7FF6
INT
V
RST
t
IPU
t
IPU
24h
New value written
(register is battery backed)
V
TP
(~ 200 ms)
V
BAK
driven low
hi-Z
This drawing shows the behavior of the INT at power-up first without a backup supply V
BAK
then with a backup
supply. On power-up without a backup power supply, the device will initialize with the Power Fail bit enabled
(PFE=1) and the INT pin will be active low (open drain) and pulse output mode (P/L=1). The Interrupt register
7FF6h defaults to the value 24h. Once V
DD
is established, the register 7FF6h may be written to a different value
to change the behavior of the INT pin. When a battery is used as a backup source, V
DD
must be applied prior to
inserting the battery to prevent battery drain. Once V
DD
is applied and a battery is inserted, the current drain on
the battery is guaranteed to be I
BAK
(max).
相關PDF資料 |
PDF描述 |
|---|---|
| FM3808-70-T | 4Kb FRAM Serial 3V Memory |
| FM3808DK | 4Kb FRAM Serial 3V Memory |
| FMA10A | General Purpose(Dual Digital Transistor)(通用(雙數(shù)字晶體管)) |
| FMA11A | Emitter Common (Dual Digital Transistors)(公共發(fā)射級(雙數(shù)字晶體管)) |
| FMA1 | General purpose (dual digital transistors) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FM3808_06 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:256Kb Bytewide FRAM w/ Real-Time Clock |
| FM3808-70-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256Kb Bytewide FRAM w/ Real-Time Clock |
| FM3808DK | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:256Kb Bytewide FRAM w/ Real-Time Clock |
| FM3808-S | 制造商:Ramtron International Corporation 功能描述:FRAM RTC 256K SMD 3808 TSOP32 |
| FM3808-SG | 制造商:Ramtron International Corporation 功能描述:FRAM RTC 256K SMD 3808 TSOP32 |
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