- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄382726 > UT7C138C45WCC SRAM|4KX8|CMOS| RAD HARD|QFL|68PIN|CERAMIC PDF資料下載
參數(shù)資料
| 型號(hào)： | UT7C138C45WCC |
| 英文描述： | SRAM|4KX8|CMOS| RAD HARD|QFL|68PIN|CERAMIC |
| 中文描述： | 靜態(tài)存儲(chǔ)器| 4KX8 |的CMOS | RAD數(shù)據(jù)通信硬| QFL | 68PIN |陶瓷 |
| 文件頁(yè)數(shù)： | 10/21頁(yè) |
| 文件大小： | 272K |
| 代理商： | UT7C138C45WCC |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)
10
Address
CE
R/W
Data in
OE
Data out
t
WC
t
SCE
t
AW
t
PWE
t
HA
t
SA
t
SD
t
HZOE
t
LZOE
DATA
VALID
HIGH
IMPEDANCE
t
HD
Assumptions:
1. The internal write time of memory is defined by the overlap of CE
LOW and R/W LOW. Both signals must be LOW to initiate a write,
and either signal can terminate a write by going HIGH. The data input
set-up and hold timing should be referenced to the rising edge of the
signal that terminates the write.
2. If OE is LOW during a R/W controlled write cycle, the write pulse
width must be the larger of t
PWE
or (t
HZWE
+ t
SD
) to allow the I/O
drivers to turn off and data to be placed on the bus for the required t
SD
.
If OE is HIGH during a R/W controlled write cycle (as in this exam-
ple), this requirement does not apply and the write pulse can be as
short as the specified t
PWE
.
3. R/W must be HIGH during all address transactions.
Figure 4a. Write Cycle 1: OE Three-States Data I/Os (Either Port)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UT7C138C45WCX | SRAM|4KX8|CMOS| RAD HARD|QFL|68PIN|CERAMIC |
| UT7C138C45WPA | x8 Dual-Port SRAM |
| UT7C138C45WPC | x8 Dual-Port SRAM |
| UT7C138C45WPX | x8 Dual-Port SRAM |
| UT7C138C55GCA | SRAM|4KX8|CMOS| RAD HARD|PGA|68PIN|CERAMIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UT7C138C45WCX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SRAM|4KX8|CMOS| RAD HARD|QFL|68PIN|CERAMIC |
| UT7C138C45WPA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Dual-Port SRAM |
| UT7C138C45WPC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Dual-Port SRAM |
| UT7C138C45WPX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 Dual-Port SRAM |
| UT7C138C55GCA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SRAM|4KX8|CMOS| RAD HARD|PGA|68PIN|CERAMIC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。