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AT7912EKF-SV Datasheet(PDF) 5 Page - ATMEL Corporation |
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AT7912EKF-SV Datasheet(HTML) 5 Page - ATMEL Corporation |
5 / 21 page 5 7743A–AERO–07/07 Notes: 1. Groups of pins represent busses where the highest number is the MSB. 2. O = Output; I = Input; Z = High Impedance 3. (*) = active low signal 4. O/Z = if using a configuration with two AT7912Es these signals can directly be con- nected together (WIROR) TMS I Test Mode Select. Used to control the test state machine. This input should be left unconnected or tied to ground during normal operation TDI I Test Data Input. Provides serial data for the boundary scan logic TDO O/Z Test Data Output. Serial scan output of the boundary scan path 3 1.5 50 RESET* I AT7912E Reset. Sets the AT7912E to a known state. This input must be asserted (low) at power-up. The minimum width of RESET low is 2 cycles when CLK is running CLK I External clock input to AT7912E (max. 5 MHz) PLLOUT O Output of internal PLL. Used to connect a network of external RC filter devices. VCC_3VOLT I PLL Control signal Configure PLL for 3.3V or 5V operation VCC = 5 Volt: connect this signal with GND VCC = 3.3 Volt: connect this signal with VCC VCC Power Supply GND Ground Signal Name(1)(3) Type(2)(4) Function 5V ± 0.5V max. output current [mA] 3.3V ± 0.3V max. output current [mA] load [pF] |
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