| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
NACE151M16V6.3X8TR13 Datasheet
NACE151M16V6.3X8TR13 Price
NACE151M16V6.3X8TR13 on stock Single Read Accesses A read access is initiated when the following conditions are satisfied at clock rise: (1) CEN is asserted LOW, (2) CEi, CE2, and CE3 are ALL asserted active, (3) the Write Enable input signal WE is deasserted HIGH, and (4) ADV/LD is asserted LOW. The address presented to the address inputs is latched into the Address Register and presented to the memory core and control logic. The control logic determines that a read access is in progress and allows the requested data to propagate to the input of the output register. At the rising edge of the next clock the requested data is allowed to propagate through the output registerand onto the data bus, provided OE is active LOW. Afterthe first clock of the read access the output buffers are controlled by OE and the internal controllogic. OE must be driven LOW in order for the device to drive out the requested data. During the second clock, a subsequent Port l is an 8 bit bi-directional I/O port with internal pullups. Port l pins that have l's written to them are pulled high by the internal pullups, and in that state can be used as inputs. As inputs, Port l pins that are externally being pulled low will source current (IlL, on the data sheet) because of the internal pullups. |
