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M74HC643B1R中文資料
M74HC643B1R數(shù)據(jù)手冊(cè)規(guī)格書(shū)PDF詳情
DESCRIPTION
The M54/74HC245, HC640 and HC643 utilise silicon gate C2MOS technology to achive operating speeds equivalent to LSTTL devices.
Along with the low power dissipation and high noise immunity of standards C2MOS integrated circuit, it possesses the capability to drive 15 LSTTL loads.
These IC’s are intended for two-way asynchronous communication between data buses, and the direction of data trasmission is determined by DIR input. The enable input (G) can be used to disable the device so that the buses are effectively isolated.
All input are equipped with protection circuits against staticdischarge and transient discharge and transient excess voltage.
IT IS PROHIBITED TO APPLY A SIGNAL TO A BUS TERMINAL WHEN IT IS IN OUTPUT MODE AND WHEN A BUS THERMINAL IS FLOATING (HIGH IMPEDANCE STATE), IT IS REQUESTED TO FIX THE INPUT LEVEL BY MEANS OF EXTERNAL PULL DOWN OR PULL UP RESISTOR.
■ HIGH SPEED
tPD = 10 ns (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION
ICC = 4 μA (MAX.) at TA = 25 oC
■ HIGH NOISE IMMUNITY
VNIH = VINL = 28 VCC (MIN.)
■ OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS
■ SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 6 mA (MIN)
■ BALANCED PROPAGATION DELAYS tPLH = tPHL
■ WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
■ PIN AND FUNCTION COMPATIBLE WITH 54/74LS245/640/643
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ST |
24+ |
DIP-24 |
600 |
||||
STM |
24+ |
DIP-24 |
5000 |
全現(xiàn)原裝公司現(xiàn)貨 |
|||
ST |
24+ |
DIP-24 |
28500 |
授權(quán)代理直銷(xiāo),原廠原裝現(xiàn)貨,假一罰十,特價(jià)銷(xiāo)售 |
|||
SGS |
23+ |
DIP |
12000 |
原裝正品假一罰百!可開(kāi)增票! |
|||
ST/意法 |
23+ |
DIP-24 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
|||
SGS |
23+ |
DIP |
13000 |
原廠授權(quán)一級(jí)代理,專(zhuān)業(yè)海外優(yōu)勢(shì)訂貨,價(jià)格優(yōu)勢(shì)、品種 |
|||
SGS |
22+ |
DIP |
30000 |
十七年VIP會(huì)員,誠(chéng)信經(jīng)營(yíng)，一手貨源，原裝正品可零售！ |
|||
SGS |
23+ |
DIP |
89630 |
當(dāng)天發(fā)貨全新原裝現(xiàn)貨 |
|||
ST/意法 |
24+ |
NA/ |
765 |
優(yōu)勢(shì)代理渠道,原裝正品,可全系列訂貨開(kāi)增值稅票 |
|||
ST/意法 |
24+ |
SOP-247.2MM |
3000 |
原裝現(xiàn)貨假一賠十 |
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STMICROELECTRONICS相關(guān)芯片制造商
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STMicroelectronics 意法半導(dǎo)體集團(tuán)
中文資料: 162265條
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