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PDF A428316 Data sheet ( Hoja de datos )
| Número de pieza | A428316 | |
| Descripción | 256K X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE | |
| Fabricantes | AMIC Technology | |
| Logotipo |  |
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A428316 Series
Preliminary
256K X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE
Document Title
256K X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE
Revision History
Rev. No.
0.0
0.1
0.2
0.3
History
Initial issue
Modify AC data
Modify DC data and all parts guarantee self-refresh mode
Delete -30,-40 grade and add -25 grade
Issue Date
June 13, 2001
April 26, 2002
June 10, 2002
August 20, 2002
Remark
Preliminary
PRELIMINARY (August, 2002, Version 0.3)
AMIC Technology, Inc.
1 page  
A428316 Series
Truth Table
Function
Standby
Read: Word
Read: Lower Byte
RAS
H
L
L
UCAS
H
L
H
LCAS
H
L
L
WE
X
H
H
OE
X
L
L
Read: Upper Byte
L L HHL
Write: Word
Write: Lower Byte
L L L LH
LHLLH
Write: Upper Byte
L LHLH
Read-Write
L L L H→L L→H
EDO-Page-Mode Read: Hi-Z
-First cycle
-Subsequent Cycles
L H→L H→L H H→L
L H→L H→L H H→L
EDO-Page-Mode Write
-First cycle
-Subsequent Cycles
L H→L H→L L
L H→L H→L L
H
H
EDO-Page-Mode Read-Write
-First cycle
-Subsequent Cycles
L H→L H→L H→L L→H
L H→L H→L H→L L→H
Hidden Refresh Read
L→H→L L L H L
Hidden Refresh Write
L→H→L L L L X
RAS -Only Refresh
L HHXX
CBR Refresh
H→L
L
L
X
X
Self Refresh
H→L
L
L
H
X
Note: 1. Byte Write may be executed with either UCAS or LCAS active.
2. Byte Read may be executed with either UCAS or LCAS active.
3. Only one CAS signal ( UCAS or LCAS ) must be active.
Address
X
Row/Col.
Row/Col.
Row/Col.
Row/Col.
Row/Col.
Row/Col.
Row/Col.
I/Os
High-Z
Data Out
I/O0-7 = Data Out
I/O8-15 = High-Z
Notes
I/O0-7 = High-Z
I/O8-15 = Data Out
Data In
I/O0-7 = Data In
I/O8-15 = X
I/O0-7 = X
I/O8-15 = Data In
Data Out → Data In 1,2
Row/Col.
Col.
Data Out
Data Out
2
2
Row/Col.
Col.
Data In
Data In
1
1
Row/Col.
Col.
Row/Col.
Row/Col.
Row
X
X
Data Out → Data In
Data Out → Data In
Data Out
Data In → High-Z
High-Z
High-Z
High-Z
1, 2
1, 2
2
1
3
PRELIMINARY (August, 2002, Version 0.3)
4
AMIC Technology, Inc.
5 Page 
Word Read Cycle
RAS
tRAS(3)
tRC(1)
A428316 Series
tRP(2)
UCAS
LCAS
A0~A8
WE
tCRP(9)
tRCD(5)
tCSH(8)
tRSH(7)
tCAS(4)
tASR(10)
tRAD(6)
tRAH(11)
tASC(24)
tRAL(21)
tCAH(25)
Row Address
Column Address
tAR(17)
tRCS(18)
tCRP(9)
tRCH(19)
tRRH(20)
OE
I/O 0 ~
I/O 15
tOEA(16)
High-Z
tRAC(13)
tCAC(14)
tAA(15)
tCLZ(12)
tOFF(23)
tOEZ(51)
Valid Data-out
: High or Low
PRELIMINARY (August, 2002, Version 0.3)
10
AMIC Technology, Inc.
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet A428316.PDF ] | |
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