PRELIMINARY
HIGH PERFORMANCE
256K X 16 EDO PAGE MODE
CMOS DYNAMIC RAM
OPTIONAL SELF REFRESH
HIGH PERFORMANCE 253035404550
Max. RAS
Max. Column Address Access Time, (t
Min. Extended Data Out Mode Cycle Time, (t
Min. Read/Write Cycle Time, (t
Access Time, (t
Features
256K x 16-bit organization
EDO Page Mode for a sustained data rate of
100 MHz
access time: 25, 30, 35, 40, 45, 50 ns
RAS
■
Dual CAS Inputs
■
Low power dissipation
■
Read-Modify-Write, RAS
CAS-Before-RAS Refresh
■
Optional Self Refresh (V53C16258SH)
■
Refresh Interval: 512 cycles/8 ms
■
Available in 40-pin 400 mil SOJ and 40/44L-pin
400 mil TSOP-II packages
■
Single +5V ±10% Power Supply
■
TTL Interface
)25 ns30 ns35 ns40 ns45 ns50 ns
RAC
)13 ns16 ns18 ns20 ns22 ns24 ns
CAA
)10 ns12 ns14 ns15 ns17 ns19 ns
PC
)45 ns60 ns70 ns75 ns80 ns90 ns
RC
Description
The V53C16258H is a high speed 262,144 x 16
bit high performance CMOS dynamic random
access memory. The V53C16258H offers a
combination of unique features including: EDO
Page Mode operation for higher sustained
bandwidth with Page Mode cycle times as short as
-Only Refresh,
10ns. All inputs are TTL compatible. Input and
output capicatance is significantly lowered to
increase performance and minimize loading. These
features make the V53C16258H ideally suited for a
wide variety of high performance computer systems
and peripheral applications.
Device Usage Chart
Operating
Temperature
Range
C to 70°C • • •••••• •Blank
–40°C to +85°C • • •••••• •I
V53C16258H Rev. 3.8 November 1999
Package OutlineAccess Time (ns)Power
KT253035404550Std.
1
Temperature
Mark
MOSEL VITELIC
V53C16258H
Part NameSelf RefreshSupply VoltagePackageSpeed
V53C16258HKxxNo Self Refresh5VSOJ25/30/35/40/45/50
V53C16258HTxxNo Self Refresh5VTSOP25/30/35/40/45/50
V53C16258SHKxxOptional Standard Self Refresh (8ms)5VSOJ25/30/35/40/45/50
V53C16258SHTxxOptional Standard Self Refresh (8ms)5VTSOP25/30/35/40/45/50
25252530ns
CAS Hold Time253035404550ns
CAS Pulse Width456789ns
RAS to CAS Delay101712201324152818321936ns4
Read Command Setup Time000000ns
Row Address Setup Time000000ns
Row Address Hold Time456789ns
Column Address Setup Time000000ns
Column Address Hold Time455567ns
RAS Hold Time (Read Cycle)7910101010ns
CAS to RAS Precharge Time555555ns
Read Command Hold Time
00 0 000ns5
Referenced to CAS
Read Command Hold Time
00 0 000ns5
Referenced to RAS
V53C16258H
Unit NotesMin. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
16 t
17 t
18 t
19 t
20 t
21 t
22 t
23 t
24 t
25 t
26 t
27 t
28 t
ROH
OAC
CAC
RAC
CAA
LZ
HZ
AR
RAD
RSH (W)
CWL
WCS
WCH
RAS Hold Time Referenced
4678910ns
to OE
Access Time from OE81011121314ns12
Access Time from CAS81011121314ns 6, 7, 14
Access Time from RAS253035404550ns 6, 8, 9
Access Time from Column
131618202224ns 6, 7, 10
Address
OE or CAS to Low-Z Output000000ns16
OE or CAS to High-Z Output050506060708ns16
Column Address Hold Time
192325303540ns
from RAS
RAS to Column Address
8139141017122013231426ns11
Delay Time
RAS or CAS Hold Time in
7910101010ns
Write Cycle
Write Command to CAS
578101314ns
Lead Time
Write Command Setup Time000000ns 12, 13
Write Command Hold Time455567ns
V53C16258H Rev. 3.8 November 1999
5
MOSEL VITELIC
V53C16258H
AC Characteristics
#Symbol Parameter
29 t
30 t
31 t
32 t
33 t
34 t
35 t
36 t
37 t
38 t
39 t
40 t
41 t
42 t
WP
WCR
RWL
DS
DH
WOH
OED
RWC
RRW
CWD
RWD
CRW
AWD
PC
Write Pulse Width455567ns
Write Command Hold Time from
RAS
Write Command to RAS Lead
Time
Data in Setup Time000000ns14
Data in Hold Time455567ns14
Write to OE Hold Time555678ns14
OE to Data Delay Time555678ns14
Read-Modify-Write Cycle Time67799095115130ns
Read-Modify-Write Cycle RAS
Pulse Width
CAS to WE Delay192123253234ns12
RAS to WE Delay in Read-
Modify-Write Cycle
CAS Pulse Width (RMW)273134385052ns
Col. Address to WE Delay242729314142ns12
EDO Fast Page Mode Read or
Write Cycle Time
(Cont’d)
25
(100 MHz)3035404550
Unit NotesMin. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
192325303540ns
7910101314ns
465359648087ns
364146516268ns12
101214151719ns
43 t
44 t
45 t
46 t
47 t
48 t
49 t
50 t
51 t
52 t
53 t
CP
CAR
CAP
DHR
CSR
RPC
CHR
PCM
COH
OES
OEH
CAS Precharge Time334567ns
Column Address to RAS Setup
131618202224ns
Time
Access Time from Column
151820222527ns7
Precharge
Data in Hold Time Referenced
192325303540ns
to RAS
CAS Setup Time CAS-before-
578101010ns
RAS Refresh
RAS to CAS Precharge Time000000ns
CAS Hold Time CAS-before-
67881010ns
RAS Refresh
EDO Page Mode
354043476570ns
Read-Modify-Write Cycle Time
Output Hold After CAS Low455555ns
OE Low to CAS High Setup
333355ns
Time
OE Hold Time from WE during
55551010ns
Read-Modify Write Cycle
V53C16258H Rev. 3.8 November 1999
6
Loading...
+ 14 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.