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PDF A4S12D30FTP Data sheet ( Hoja de datos )
| Número de pieza | A4S12D30FTP | |
| Descripción | 512Mb DDR SDRAM | |
| Fabricantes | Zentel Electronics | |
| Logotipo |  |
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A4S12D30FTP
A4S12D40FTP
512M Double Data Rate Synchronous DRAM
512Mb DDR SDRAM Specification
A4S12D30FTP
A4S12D40FTP
Zentel Electronics Corp.
Revision 1.2
May, 2011
1 page  
BLOCK DIAGRAM
A4S12D30FTP
DLL
A4S12D30FTP
A4S12D40FTP
512M Double Data Rate Synchronous DRAM
DQ0 - 7
DQS
I/O Buffer
DQS Buffer
Memory
Array
Bank #0
Memory
Array
Bank #1
Memory
Array
Bank #2
Memory
Array
Bank #3
Mode Register
Control Circuitry
Address Buffer
A0-12 BA0,1
Clock Buffer
Control Signal Buffer
/CS /RAS /CAS /WE DM
CLK /CLK CKE
Type Designation Code
This rule is applied to only Synchronous DRAM family.
A 4 S 12 D 3 0 F T P –G5
Speed Grade 5: 200MHz @CL=3.0
Package Type TP: TSOP(II)
Process Generation
Function Reserved for Future Use
Organization 2 n 3: x8, 4: x16
DDR Synchronous DRAM
Density 12: 512M bits
Interface S:SSTL _2
Memory Style (DRAM)
Zentel DRAM
Revision 1.2
Page 4 / 37
May, 2011
5 Page 
A4S12D30FTP
A4S12D40FTP
512M Double Data Rate Synchronous DRAM
FUNCTION TRUTH TABLE (continued)
Current State /CS /RAS /CAS /WE Address
Command
PRE-
HX
CHARGING L H
X XX
H HX
DESEL
NOP
L H H L BA
TERM
L H L X BA, CA, A10 READ / WRITE
L L H H BA, RA
ACT
L L H L BA, A10
PRE / PREA
L L L HX
REFA
LL
L L Op-Code, Mode- MRS
Add
ROW
ACTIVATING
H
L
L
X
H
H
X XX
H HX
H L BA
DESEL
NOP
TERM
L H L X BA, CA, A10 READ / WRITE
L L H H BA, RA
ACT
L L H L BA, A10
PRE / PREA
L L L HX
REFA
LL
HX
WRITE RE-
COVERING L H
LH
L L Op-Code, Mode- MRS
Add
X XX
DESEL
H HX
NOP
H L BA
TERM
L H L X BA, CA, A10 READ / WRITE
L L H H BA, RA
ACT
L L H L BA, A10
PRE / PREA
L L L HX
REFA
LL
Op-Code, Mode-
L L Add
MRS
Action
NOP (Idle after tRP)
NOP (Idle after tRP)
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Idle after tRP)
ILLEGAL
ILLEGAL
NOP (Row Active after tRCD)
NOP (Row Active after tRCD)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Notes
2
2
2
4
2
2
2
2
2
2
2
2
Revision 1.2
Page 10 / 37
May, 2011
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet A4S12D30FTP.PDF ] | |
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