AT68166F_14 Datasheet, PDF (9/16 Pages) ATMEL Corporation – TTL-Compatible Inputs and Outputs

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 I_OL/I_OH:............................................ See Figure 4
Figure 4. AC Test Loads Waveforms
AT68166F
General
Specific (TWLQZ, TWHQX, TELQX, TEHQZ
TGLQX, TGHQZ)
Write Cycle
Table 4. Write cycle timings⁽¹⁾
AT68166F-20
AT68166F-18
Symbol
TAVAW
TAVWL
TAVWH
TDVWH
TELWH
TWLQZ
TWLWH
TWHAX
TWHDX
TWHQX
Parameter
min
max
min
max
Unit
Write cycle time
20
-
18
-
ns
Address set-up time
2
-
2
-
ns
Address valid to end of write
14
-
11
-
ns
Data set-up time
9
-
8
-
ns
CS low to write end
12
-
12
-
ns
Write low to high Z⁽²⁾
-
10
-
8
ns
Write pulse width
12
-
9
-
ns
Address hold from end of write
0
-
0
-
ns
Data hold time
Write high to low Z⁽²⁾
2
-
1
-
ns
5
-
3
-
ns
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.)
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7747C–AERO–06/10