gvt71128b18 ETC-unknow, gvt71128b18 Datasheet - Page 8

• Manufacturer Part Number: gvt71128b18
• Description: 128k Synchronous Burst Sram
• Manufacturer: ETC-unknow

NOTES
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. This is a synchronous device. All synchronous inputs must meet
11. AC I/O curves are available upon request.
12. “Device Deselected” means the device is in POWER -DOWN
13. Typical values are measured at 3.3V, 25
14. MODE pin has an internal pull-up and ZZ pin has an internal
March 4, 1998
Rev. 3/98
Input pulse levels
Input rise and fall times
Input timing reference levels
Output reference levels
Output load
GALVANTECH
AC TEST CONDITIONS
pull-down. These two pins exhibit an input leakage current of
+30 A.
Undershoot:
All voltages referenced to VSS (GND).
Overshoot:
I
output loading and faster cycle times.
This parameter is sampled.
Test conditions as specified with the output loading as shown in
Fig. 1 unless otherwise noted.
Output loading is specified with CL=5pF as in Fig. 2.
At any given temperature and voltage condition,
than
A READ cycle is defined by byte write enables all HIGH or
ADSP# LOW along with chip enables being active for the
required setup and hold times. A WRITE cycle is defined by at
one byte or all byte WRITE per READ/WRITE TRUTH
TABLE.
OE# is a “don’t care” when a byte write enable is sampled LOW.
specified setup and hold time, except for “don’t care” as defined
in the truth table.
mode as defined in the truth table. “Device Selected” means the
device is active.
cc
is given with no output current. I
t
KQLZ and
t
V
V
OEHZ is less than
IH
IL
-2.0V for t
+6.0V for t
cc
t
OELZ.
t
KC /2
t
KC /2.
increases with greater
o
C and 20ns cycle time.
, INC.
See Figures 1
0V to 3.0V
t
KQHZ is less
1.5ns
1.5V
1.5V
128K X 18 SYNCHRONOUS BURST SRAM
8
15. Capacitance derating applies to capacitance different from the
OUTPUT LOADS
load capacitance shown in Fig. 1.
DQ
Fig. 2 OUTPUT LOAD EQUIVALENT
Fig. 1 OUTPUT LOAD EQUIVALENT
DQ
Galvantech, Inc. reserves the right to change products or specifications without notice.
Z
0
= 50
351
Vt = 1.5V
GVT71128B18
PRELIMINARY
50
3.3v
317
5 pF