K4H510438A-TCA0 SAMSUNG [Samsung semiconductor], K4H510438A-TCA0 Datasheet - Page 2

• Manufacturer Part Number: K4H510438A-TCA0
• Description: 128Mb DDR SDRAM
• Manufacturer: SAMSUNG [Samsung semiconductor]

128Mb DDR SDRAM
Revision History
Version 0 (May, 1998)
Version 0.1(June, 1998)
Version 0.2(Sep,1998)
Version 0.3(Dec,1998)
Version 0.4(Feb,1999)
Version 0.5(Apr,1999)
Version 0.6(July 1,1999)
Version 0.61(August 9,1999)
1. Added "Issue prcharge command for all banks of the device" as the fourth step of power-up squence.
2. In power down mode timing diagram, NOP condition is added to precharge power down exit.
- Added QFC Function.
- Added DC current value
- Reduce I/O capacitance values
- Added x4 organization
-Added DDR SDRAM history for reference(refer to the following page)
-Added low power version DC spec
1.Modified binning policy
2.Modified the following AC spec values
3.Changed the following AC parameter symbol
- First version for internal review
-Revised following first showing for JEDEC standard
-Added DC target current based on new DC test condition
- Changed the some values of "write with auto precharge" table for different bank in page 31.
*1
Output data access time from CK/CK
Read + AP
tDQSCK
tCDLR
: Changed description method for the same functionality. This means no difference from the previous version.
command
-Z (133Mhz)
-8 (125Mhz)
-0 (100Mhz)
tDS/tDH
tRPST
tDQSQ
Asserted
tPRE
tHZQ
Read
tAC
From
*1
*1
*1
*1
*1
tCK/2 +/- 0.75ns
tCK/2 +/- 0.75ns
1tCK +/- 0.75ns
2.5tCK-tDQSS
+/- 0.75ns
+/- 0.75ns
-Y (133Mhz/266Mbps@CL=2.5)
-0 (100Mhz/200Mbps@CL=2)
+/- 0.5ns
-Z (133Mhz/266Mbps@CL=2)
Legal
Legal
0.5 ns
Old
-Z
To
From.
3
2.5tCK-tDQSS
Illegal
Illegal
tCK/2 +/- 1ns
tCK/2 +/- 1ns
1tCK +/- 1ns
New
+/- 0.75ns
For Different Bank
0.75 ns
+/- 1ns
+/- 1ns
-0
tDQCK
From.
- 2 -
Legal
Legal
Old
0.9/1.1 tCK
0.4/0.6 tCK
+/- 0.75ns
+/- 0.75ns
+/- 0.75ns
+/- 0.5ns
0.5 ns
1tCK
-Z
4
tAC
To.
Illegal
Illegal
New
REV. 1.0 November. 2. 2000
0.9/1.1 tCK
0.4/0.6 tCK
+/- 0.75ns
+/- 0.75ns
+/- 0.75ns
+/- 0.5ns
0.5 ns
1tCK
To.
-Y
0.9/1.1 tCK
0.4/0.6 tCK
+/- 0.8ns
+/- 0.8ns
+/- 0.6ns
+/-0.8ns
0.6 ns
1tCK
-0