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參數(shù)資料
| 型號： | FM31256 |
| 元件分類： | F-RAM |
| 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)： | 20/22頁 |
| 文件大小： | 170K |
| 代理商： | FM31256 |
AC Test Conditions
Input Pulse Levels
Input rise and fall times
Input and output timing levels
Diagram Notes
All start and stop timing parameters apply to both read and write
cycles. Clock specifications are identical for read and write cycles.
Write timing parameters apply to slave address, word address, and
write data bits. Functional relationships are illustrated in the relevant
data sheet sections. These diagrams illustrate the timing parameters
only.
Read Bus Timing
FM3104/16/64/256
Rev 0.21
Nov 2003
Page 20 of 22
Equivalent AC Load Circuit
0.1 V
DD
to 0.9 V
DD
10 ns
0.5 V
DD
t
SU:SDA
Start
t
R
`
t
F
Stop Start
t
BUF
t
HIGH
1/fSCL
t
LOW
t
SP
t
SP
Acknowledge
t
HD:DAT
t
SU:DAT
t
AA
t
DH
SCL
SDA
Write Bus Timing
t
SU:STO
Start
Stop Start
Acknowledge
t
AA
t
HD:DAT
t
HD:STA
t
SU:DAT
SCL
SDA
/RST Timing
VDD
VTP
VRST
RST
t
R P U
t
VF
t
RNR
t
VR
5.5V
Output
1700
100 pF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FM31256_11 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:Integrated Processor Companion with Memory |
| FM31256-G | 功能描述:監(jiān)控電路 256K w/RTC Pwr Mon WDT Bat Sw PF RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM31256-G | 制造商:Ramtron International Corporation 功能描述:Voltage Detector / Microprocessor Superv |
| FM31256-GTR | 功能描述:監(jiān)控電路 256K w/RTC Pwr Mon WDT Bat Sw PF RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM31256-S | 功能描述:監(jiān)控電路 256K w/RTC Pwr Mon WDT Bat Sw PF RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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