MSC23409CL-XXDS9 OKI [OKI electronic componets], MSC23409CL-XXDS9 Datasheet - Page 8

• Manufacturer Part Number: MSC23409CL-XXDS9
• Description: 4,194,304-Word x 9-Bit DRAM MODULE : FAST PAGE MODE TYPE
• Manufacturer: OKI [OKI electronic componets]

¡ Semiconductor
Notes:
10. In a test mode read cycle, the access time parameters are delayed by 5 ns. The test
1. A start-up delay of 200 s is required after power-up followed by a minimum of
2. AC mesurement assume t
3. V
4. Measured with a load circuit equivalent to 2 TTL loads and 100 pF.
5. Operation within the t
6. Operation within the t
7. t
8. t
9. The test mode is initiated by performing a WE and CAS before RAS refresh cycle.
eight initialization cycles (RAS-only refresh or CAS before RAS refresh) before
proper device operation is achieved.
initialization cycles is required.
Transition times are measured between V
(Max.) is specified as a reference point only. If t
(Max.) limit, access time is controlled by t
(Max.) is specified as a reference point only. If t
(Max.) limit, access time is controlled by t
and is not referenced to output voltage levels.
This mode is latched and remains in effect until the exit cycle is generated.
CA10 and CA0 are not used. In a read cycle, if all internal bits are equal, the data
output pin will indicate a high level. If any internal bits are not equal, then data
output pin will indicate a low level.
state by performing a RAS-only refresh cycle or a CAS before RAS refresh cycle.
mode parameters are obtained by adding 5 ns to the normal read cycle values.
When using the internal refresh counter, a minimum of eight CAS before RAS
The test mode specified in this data sheet is an 8-bit parallel test function. RA10,
The test mode is cleared and the memory device returned to its normal operational
OFF
RCH
IH
(Min.) and V
(Max.) defines the time at which the output achieves an open circuit condition
or t
RRH
must be satisfied for a read cycle.
IL
(Max.) are reference levels for measuring input timing signals.
RCD
RAD
T
(Max.) limit ensures that t
(Max.) limit ensures that t
= 5 ns.
CAC
AA
IH
.
and V
RAD
RCD
.
is greater than the specified t
is greater than the specified t
IL
.
RAC
RAC
MSC23409C/CL-xxDS9
(Max.) can be met. t
(Max.) can be met. t
8/13
RAD
RAD
RCD
RCD