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| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact | |
| N74F657N | TI | QFP-44 | 99+ | 334 |
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| N74F657N | N/A | . | 99 | 4300 |
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| N74F657N | 99 | 324 |
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| N74F657N | N/A | . | 99 | 4300 |
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| N74F657N | 99+ | 324 |
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| N74F657N | SIG | 93 | new original parts , | 140 |
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| N74F657N | DIP | 99 |
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| N74F657N | DIP | 99 |
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| N74F657N | 324 | 99 |
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| N74F657N | 99 | 324 |
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| N74F657N | DIP | 07+ | STOCK | 500 |
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| N74F657N | ＮＸＰ | ECRAI@MSN.COM | 12000 |
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| N74F657N | DIP | 99 | 324 |
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| N74F657N | DIP | 38503 | N/A | MAILTOTALK | 99 |
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N74F657N Datasheet Page Write 93WD462 - Assume WEN has been issued. The host will then take CS high, and begin clocking in the start bit, write command and 7-bit address immediately followed by the first byte ofdata to be written. The host can then continue clocking in 8-bit bytes of data with each byte to be written to the next higher address. Internally the address pointer is incremented after receiving each group of eight clocks; however, once the address counter reaches xxx 1111 it will roll over to xxx 0000 with the next clock. After the last bit is clocked in no internalwrite operation will occur until CS is brought low. N74F657N Price The voltage monitor comparator (pin 3) has a threshold of l/3 x Vs. If the voltage applied to pin 3 exceeds this voltage, both output stages are switched off immediately and locked for 20 ms. With a hysteresis of 200 mV, the outputs are enabled again after a delay time of 20 ms. A voltage divider connected to Vs is used to feed the input volt- age to pin 3. A decoupling diode is recommended if the external power device's drain source voltage exceeds 30 V (see Figure 5 0n page 9). N74F657N on stock For ac coupled analog input applications, amplifier U2 is removed from the analog signal path. The analog signalis coupled into the inpu e AD 9057 through capacitor C2. The ADC pu,s a:ap:tkl:t:utistias current from the VREF IN voltage through the l sistor internal to the AD 905 7 (BIAS OUT). The analog input signal to the board should be 1 V p-p int0 50 I (Rl) for full-scale ADC drive. For ac coupled operation, connect El to E3 (analog input A to C2 feedthrough capacitor) and Elo to E12 (C2 to the analog input and internal bias resistor) using the board jumper connectors.
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