KM736S849
KM718S949
256Kx36 & 512Kx18 Pipelined NtRAMTM
Document Title
256Kx36 & 512Kx18-Bit Pipelined NtRAMTM
Revision History
History
Rev.No.
Draft Date
Remark
1. Initial document.
0.0
September. 1997
Preliminary
1. Changed speed bin from 167MHz to 150MHz
2. Changed DC Parameters;
0.1
November. 1997
Preliminary
ICC : from 400mA to 450mA , ISB : from 60mA to 20mA
ISB2 : from 50mA to 85mA
1. Changed speed bin from 150MHz to 167MHz
2. Changed Power from 3.3V to 2.5V
0.2
March. 11. 1998
Preliminary
3. Changed N.C pins to Power and ZZ Pin #14, #16, #64, #66
4. Changed some control pin names.
from CEN to CKE, from BWEx to BWx
5. Modify absolute maximum ratings
VDD ; from 4.0V to 3.6V, VIN ; from 4.6V to 3.6V
6. Changed DC parameters
ISB ; from 20mA to 80mA, ISB2 ; from 85mA to 10mA
VOL ; from 0.4V to 0.2V, VOH ; from 2.4V to 2.0V
VIL ; from 0.8V to 0.7V, VIH ; from 2.0V to 1.7V
7. ADD the sleep mode timing and characteristics
CKE controlled timing and CS controlled timing
1. Removed speed bin 167MHz
0.3
April. 11. 1998
Preliminary
2.Changed AC parameters
tHZOE ; from 4.0 to 3.5 , tHZC;from 4.0 to 3.5 at -75
tHZOE ; from 5.0 to 3.5 , tHZC;from 5.0 to 3.5 , tCL/H; 4.0 to 3.0 at -10
3.Modify Sleep Mode Waveform.
Changed Sleep Mode Electrical Characteristics .
tPDS ;from Max 2cycle to Min 2cycle
tPUS ; from Max 2cycle to Min 2cycle
1.Modify from ADV to ADV at timing.
0.4
0.5
June. 02. 1998
Aug. 19. 1998
Preliminary
Preliminary
2.ADD the Trade Mark( NtRAMTM
)
1. Changed DC parameters
ISB1; from 10mA to 20mA, ISB2 ; from 10mA to 20mA
1. Changed tCD,tOE from 4.0ns to 4.2ns at -75.
0.6
0.7
Sep. 28. 1998
Nov. 10. 1998
Preliminary
Preliminary
1. Changed DC condition at Icc and parameters
ICC ; from 420mA to 320mA at -67 , from 370mA to 300mA at -75
from 300mA to 250mA at -10.
ISB ; from 70mA to 60mA at -67 , from 60mA to 50mA at -75
from 50mA to 40mA at -10.
1.Changed VOL Max value from 0.2V to 0.4V .
1. Add 119BGA(7x17 Ball Grid Array Package) .
1. Final spec release
0.8
0.9
1.0
2.0
Dec. 23. 1998
Mar. 03. 1999
April. 01. 1999
Oct. 30. 1999
Preliminary
Preliminary
Final
1. Add tCYC 167Mhz.
Final
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right to change the
specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions on the parameters of this device. If you have any ques-
tions, please contact the SAMSUNG branch office near your office, call or contact Headquarters.
- 1 -
November 1999
Rev 3.0