Datenblatt-Suchmaschine für elektronische Bauteile |
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ES29F160FB-12TG Datenblatt(PDF) 6 Page - Excel Semiconductor Inc. |
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ES29F160FB-12TG Datenblatt(HTML) 6 Page - Excel Semiconductor Inc. |
6 / 54 page ES I ES I 6 Rev. 1C Jan 5 , 2006 ES29LV160D Excel Semiconductor inc. Several device operational modes are provided in the ES29LV160 device. Commands are used to ini- tiate the device operations. They are latched and stored into internal registers with the address and data information needed to execute the device operation. The available device operational modes are listed in Table 1 with the required inputs, controls, and the resulting outputs. Each operational mode is described in further detail in the following subsec- tions. Read The internal state of the device is set for the read mode and the device is ready for reading array data upon device power-up, or after a hardware reset. To read the stored data from the cell array of the device, CE# and OE# pins should be driven to VIL while WE# pin remains at VIH. CE# is the power control and selects the device. OE# is the output control and gates array data to the output pins. Word or byte mode of output data is determined by the BYTE# pin. No additional command is needed in this mode to obtain array data. Standard micro- processor read cycles that assert valid addresses on the device address inputs produce valid data on the device data outputs. The device stays at the read mode until another operation is activated by writing commands into the internal command register. Refer to the AC read cycle timing diagrams for further details ( Fig. 16 ). Word/Byte Mode Configuration ( BYTE# ) The device data output can be configured by BYTE# into one of two modes : word and byte modes. If the BYTE# pin is set at logic ‘1’, the device is configured in word mode, DQ0 - DQ15 are active and controlled by CE# and OE#. If the BYTE# pin is set at logic ‘0’, the device is configured in byte mode, and only data I/O pins DQ0 - DQ7 are active and controlled by CE# and OE#. The data I/O pins DQ8 - DQ14 are tri- stated, and the DQ15 pin is used as an input for the LSB (A-1) address. Standby Mode When the device is not selected or activated in a system, it needs to stay at the standby mode, in which current consumption is greatly reduced with outputs in the high impedance state. DEVICE BUS OPERATIONS |
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Ähnliche Beschreibung - ES29F160FB-12TG |
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