MD51V65805E Oki Semiconductor, MD51V65805E Datasheet - Page 8

• Manufacturer Part Number: MD51V65805E
• Description: 8,388,608-word 8-bit Dynamic Ram Fast Page Mode Type With Edo
• Manufacturer: Oki Semiconductor

Notes: 1. A start-up delay of 200 s is required after power-up, followed by a minimum of eight initialization
OKI Semiconductor
2. The AC characteristics assume t
3. V
4. This parameter is measured with a load circuit equivalent to 1 TTL load and 100pF.
5. Operation within the t
6. Operation within the t
7. t
8. t
9. t
10. t
11. These parameters are referenced to the CAS, leading edges in an early write cycle, and to the WE
cycles (RAS-only refresh or CAS before RAS refresh) before proper device operation is achieved.
are measured between V
The output timing reference levels are V
t
then the access time is controlled by t
t
then the access time is controlled by t
open circuit condition and are not referenced to output voltage levels.
sheet as electrical characteristics only. If t
the data out will remain open circuit (high impedance) throughout the entire cycle. If t
(Min.), t
write cycle and data out will contain data read from the selected cell; if neither of the above sets of
conditions is satisfied, then the condition of the data out (at access time) is indeterminate.
leading edge in an OE control write cycle, or a read modify write cycle.
RCD
RAD
CEZ
CEZ
RCH
WCS
IH
, and t
(Min.) and V
(Max.), t
, t
(Max.) is specified as a reference point only. If t
(Max.) is specified as a reference point only. If t
or t
CWD
RRH
RWD
REZ
, t
RWD
must be satisfied for a read cycle.
REZ
must be satisfied for open circuit condition.
t
RWD
, t
(Max.), t
IL
AWD
(Max.) are reference levels for measuring input timing signals. Transition times (t
(Min.), t
RCD
RAD
and t
IH
WEZ
(Max.) limit ensures that t
(Max.) limit ensures that t
CPWD
and V
AWD
(Max.), and t
T
are not restrictive operating parameters. They are included in the data
IL
t
= 2ns.
AWD
.
CAC
AA
(Min.) and t
.
OH
.
WCS
OEZ
=2.0 and V
(Max.) define the time at which the output achieved the
t
WCS
CPWD
RAC
RCD
RAC
RAD
(Min.), then the cycle is an early write cycle and
OL
(Max.) can be met.
is greater than the specified t
(Max.) can be met.
is greater than the specified t
=0.8V.
t
CPWD
(Min.), then the cycle is a read modify
FEDD51V65805E-01
MD51V65805E
RAD
RCD
(Max.) limit,
(Max.) limit,
CWD
t
8/16
CWD
T
)