EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 22

• Manufacturer Part Number: EM636327Q-7
• Description: 512K x 32 High Speed Synchronous Graphics DRAM(SGRAM)
• Manufacturer: Etron Technology Inc.

Note:
1. Stress greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
2. All voltages are referenced to V
3. These parameters depend on the cycle rate and these values are measured by the cycle rate under the
4. These parameters depend on the output loading. Specified values are obtained with the output open.
5. Power-up sequence is described in Note 10.
6. A.C. Test Conditions
LVTTL Interface
7. Transition times are measured between V
8. t
9. These parameters account for the number of clock cycle and depend on the operating frequency of the
10.If clock rising time is longer than 1 ns, ( t
11.Assumed input rise and fall time t
Preliminary
Transition Time (Rise and Fall) of Input Signals
the device.
minimum value of t
slope (1 ns).
levels.
clock as follows:
the number of clock cycles = specified value of timing/Clock cycle time
(count fractions as a whole number)
If t
[ ( t
Output
HZ
R
LVTTL D.C. Test Load (A)
R
defines the time in which the outputs achieve the open circuit condition and are not at reference
or t
Reference Level of Output Signals
+ t
Reference Level of Input Signals
F
F
is longer than 1 ns, transient time compensation should be considered, i.e.,
) / 2 -1] ns should be added to the parameter.
Input Signal Levels
30pF
Output Load
CK
and t
RC
1.2k
3.3V
87 0
. Input signals are changed one time during t
SS
T
.
( t
R
& t
R
IH
F
/ 2 -0.5) ns should be added to the parameter.
) = 1 ns
and V
Output
22
IL
. Transition(rise and fall) of input signals are in a fixed
LVTTL A.C. Test Load (B)
Reference to the Under Output Load (B)
Z0=
5 0
1.4V / 1.4V
2.4V / 0.4V
1.4V
1ns
CK
30pF
5 0
1.4V
.
EM636327
December
1998