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AT68166HT-YS20MQ Datasheet(PDF) 9 Page - ATMEL Corporation |
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AT68166HT-YS20MQ Datasheet(HTML) 9 Page - ATMEL Corporation |
9 / 15 page 9 7843A–AERO–10/09 AT68166HT AC Characteristics Temperature Range:................................................................................................. -55 +125 °C Supply Voltage: ........................................................................................................... 3.3 +0.3V Input Pulse Levels: ................................................................................................. GND to 3.0V Input Rise and Fall Times:................................................................................... 3ns (10 - 90%) Input and Output Timing Reference Levels: ........................................................................ 1.5V Output Loading IOL/IOH:........................................................................................... See Figure 4 Figure 4. AC Test Loads Waveforms Write Cycle Table 4. Write cycle timings(1) Notes: 1. Timings figures applicable for 8-bit, 16-bit and 32-bit mode. 2. Parameters guaranteed, not tested, with output loading 5 pF. (See “AC Test Loads Wave- forms” on page 9.) Specific (TWLQZ, TWHQX, TELQX, TEHQZ TGLQX, TGHQZ) General Symbol Parameter AT68166HT-25 AT68166HT-20 AT68166HT-18 (preliminary) Unit min max min max min max TAVAW Write cycle time 20 - 20 - 18 - ns TAVWL Address set-up time 2 - 2 - 2 - ns TAVWH Address valid to end of write 14 - 11 - 10 - ns TDVWH Data set-up time 9 - 8 - 7 - ns TELWH CS low to write end 12 - 12 - 11 - ns TWLQZ Write low to high Z(2) -10- 10 - 9 ns TWLWH Write pulse width 12 - 9 - 9 - ns TWHAX Address hold from end of write 0-0 - 0- ns TWHDX Data hold time 2 - 1 - 1 - ns TWHQX Write high to low Z(2) 5-5 - 5- ns |
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