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STC62WV5128TC Arkusz danych(PDF) 2 Page - List of Unclassifed Manufacturers |
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STC62WV5128TC Arkusz danych(HTML) 2 Page - List of Unclassifed Manufacturers |
2 / 10 page Revision 1.1 Jan. 2004 2 R0201-STC62WV5128 Name Function A0-A18 Address Input These 19 address inputs select one of the 524,288 x 8-bit words in the RAM CE Chip Enable Input CE is active LOW. Chip enables must be active when data read from or write to the device. if chip enable is not active, the device is deselected and is in a standby power mode. The DQ pins will be in the high impedance state when the device is deselected. WE Write Enable Input The write enable input is active LOW and controls read and write operations. With the chip selected, when WE is HIGH and OE is LOW, output data will be present on the DQ pins; when WE is LOW, the data present on the DQ pins will be written into the selected memory location. OE Output Enable Input The output enable input is active LOW. If the output enable is active while the chip is selected and the write enable is inactive, data will be present on the DQ pins and they will be enabled. The DQ pins will be in the high impedance state when OE is inactive. DQ0-DQ7 Data Input/Output Ports These 8 bi-directional ports are used to read data from or write data into the RAM. Vcc Power Supply GND Ground TRUTH TABLE PIN DESCRIPTIONS STC MODE WE CE OE I/O OPERATION Vcc CURRENT Not selected X H X High Z ICCSB, ICCSB1 Output Disabled H L H High Z ICC Read H L L DOUT ICC Write L L X DIN ICC SYMBOL PARAMETER CONDITIONS MAX. UNIT CIN Input Capacitance VIN=0V 6 pF CDQ Input/Output Capacitance VI/O=0V 8 pF ABSOLUTE MAXIMUM RATINGS(1) OPERATING RANGE CAPACITANCE (1) (TA = 25oC, f = 1.0 MHz) 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 1. This parameter is guaranteed and not 100% tested. SYMBOL PARAMETER RATING UNITS VTERM Terminal Voltage with Respect to GND -0.5 to Vcc+0.5 V TBIAS Temperature Under Bias -40 to +85 O C TSTG Storage Temperature -60 to +150 O C PT Power Dissipation 1.0 W IOUT DC Output Current 20 mA STC62WV5128 RANGE AMBIENT TEMPERATURE Vcc Commercial 0 O C to +70 O C 2.4V ~ 5.5V Industrial -40 O C to +85 O C 2.4V ~ 5.5V |
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Podobny opis - STC62WV5128TC |
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