MOSEL VITELIC
1
V53C16258SH
HIGH PERFORMANCE
256K X 16 EDO PAGE MODE
CMOS DYNAMIC RAM
SELF REFRESH
PRELIMINARY
V53C16258SH Rev 0.3 September 1998
HIGH PERFORMANCE
50
Max. RAS Access Time, (t
RAC
)
50 ns
Max. Column Address Access Time, (t
CAA
)
24 ns
Min. Extended Data Out Mode Cycle Time, (t
PC
)
19 ns
Min. Read/Write Cycle Time, (t
RC
)
90 ns
Features
s
256K x 16-bit organization
s
EDO Page Mode for a sustained data rate of
53 MHz (-50ns)
s
RAS access time: 50 ns
s
Dual CAS Inputs
s
Low power dissipation
s
Read-Modify-Write, RAS-Only Refresh,
CAS-Before-RAS Refresh
s
Self Refresh
s
Refresh Interval: 512 cycles/8 ms
s
Available in 40-pin 400 mil SOJ and 40/44L-pin
400 mil TSOP-II packages
s
Single +5V
10% Power Supply
s
TTL Interface
Description
The V53C16258SH is a high speed 262,144 x 16
bit high performance CMOS dynamic random
access memory. The V53C16258SH offers a
combination of unique features including: EDO
Page Mode operation for higher sustained
bandwidth with Page Mode cycle times as short as
19ns. All inputs are TTL compatible. Input and
output capacitance is significantly lowered to
increase performance and minimize loading. These
features make the V53C16258SH ideally suited for
a wide variety of high performance computer
systems and peripheral applications.
Device Usage Chart
Operating
Temperature
Range
Package Outline
Access Time (ns)
Power
Temperature
Mark
K
T
50
Std.
0
C to 70
C
Blank
2
V53C16258SH Rev 0.2 Aug. 1998
MOSEL VITELIC
V53C16258SH
FAMILY
DEVICE
PKG
( t
RAC
)
SPEED
PWR.
V
5
3
C
2
5
8
50 (50 ns)
TEMP.
BLANK (0
C to 70
C)
BLANK (NORMAL)
K (SOJ)
H (5V)
T (TSOP-II)
H
16
S STANDARD
SELF REFRESH)
S
Pin Names
A
0
A
8
Address Inputs
RAS
Row Address Strobe
UCAS
Column Address Strobe/Upper Byte Control
LCAS
Column Address Strobe/Lower Byte Control
WE
Write Enable
OE
Output Enable
I/O
1
I/O
16
Data Input, Output
V
CC
+5V Supply
V
SS
0V Supply
NC
No Connect
40-Pin SOJ
PIN CONFIGURATION
Top View
5
6
7
8
9
10
11
12
Vcc
I/O1
I/O2
I/O3
I/O4
Vcc
I/O5
I/O6
I/O7
I/O8
NC
NC
WE
RAS
NC
A0
A1
A2
A3
Vcc
1
2
3
4
16258H-02
39
38
37
36
35
34
33
32
31
30
29
13
14
15
16
17
18
19
20
28
27
26
25
24
23
22
21
Vss
I/O16
I/O15
I/O14
I/O13
Vss
I/O12
I/O11
I/O10
I/O9
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
Vss
Part Name
Self Refresh
Supply Voltage
Package
Speed
V53C16258SHK50
Standard Self Refresh (8ms)
5V
SOJ
50
V53C16258SHT50
Standard Self Refresh (8ms)
5V
TSOP
50
40/44 Pin Plastic TSOP-II
PIN CONFIGURATION
Top View
5
6
7
8
9
10
Vcc
I/O1
I/O2
I/O3
I/O4
Vcc
I/O5
I/O6
I/O7
I/O8
NC
NC
WE
RAS
NC
A0
A1
A2
A3
Vcc
1
2
3
4
16258H-03
43
44
42
41
40
39
38
37
36
35
13
14
15
16
17
18
19
20
21
22
32
31
30
29
28
27
26
25
24
23
Vss
I/O16
I/O15
I/O14
I/O13
Vss
I/O12
I/O11
I/O10
I/O9
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
Vss
3
MOSEL VITELIC
V53C16258SH
V53C16258SH Rev 0.2 Aug. 1998
Absolute Maximum Ratings*
Ambient Temperature
Under Bias ..................................... 10
C to +80
C
Storage Temperature (plastic) ..... 55
C to +125
C
Voltage Relative to V
SS
.................1.0 V to +7.0 V
Data Output Current ..................................... 50 mA
Power Dissipation .......................................... 1.0 W
*Note:
Operation above Absolute Maximum Ratings can
adversely affect device reliability.
Capacitance*
T
A
= 25
C, V
CC
= 5 V
10%, V
SS
= 0 V
* Note:
Capacitance is sampled and not 100% tested
Symbol
Parameter Typ.
Max.
Unit
C
IN1
Address Input
3
4
pF
C
IN2
RAS, CAS, WE, OE
4
5
pF
C
OUT
Data Input/Output
5
7
pF
Block Diagram
A0
A1
A7
A8
SENSE AMPLIFIERS
REFRESH
COUNTER
VCC
VSS
9
I/O 1
ADDRESS BUFFERS
AND PREDECODERS
X0 -X
ROW
DECODERS
512
MEMORY
ARRAY
256K x 16
COLUMN DECODERS
DATA I/O BUS
Y0 -Y8
512 x 16
I/O
BUFFER
I/O2
I/O3
I/O4
OE CLOCK
GENERATOR
WE CLOCK
GENERATOR
CAS CLOCK
GENERATOR
RAS CLOCK
GENERATOR
OE
WE
LCAS
RAS
8
I/O 5
I/O6
I/O7
I/O8
I/O 9
I/O10
I/O11
I/O12
I/O 13
I/O14
I/O15
I/O16
UCAS
256K x 16
16258H-04
4
V53C16258SH Rev 0.2 Aug. 1998
MOSEL VITELIC
V53C16258SH
DC and Operating Characteristics
(1-2)
T
A
= 0
C to 70
C, V
CC
= 5 V
10%, V
SS
= 0 V, unless otherwise specified.
Symbol
Parameter
V53C16258SH
Unit
Test Conditions
Notes
Min.
Typ.
Max.
I
LI
Input Leakage Current
(any input pin)
10
10
m
A
V
SS
V
IN
V
CC
I
LO
Output Leakage Current
(for High-Z State)
10
10
m
A
V
SS
V
OUT
V
CC
RAS, CAS at V
IH
I
CC1
V
CC
Supply Current,
Operating
160
mA
t
RC
= t
RC
(min.)
1, 2
I
CC2
V
CC
Supply Current,
TTL Standby
2
mA
RAS, CAS at V
IH
other inputs
V
SS
I
CC3
V
CC
Supply Current,
RAS-Only Refresh
160
mA
t
RC
= t
RC
(min.)
2
I
CC4
V
CC
Supply Current,
EDO Page Mode Operation
150
mA
Minimum Cycle
1, 2
I
CC5
V
CC
Supply Current,
Standby, Output Enabled
other inputs
V
SS
2
mA
RAS = V
IH
, CAS = V
IL
1
I
CC6
V
CC
Supply Current,
CMOS Standby
1
mA
RAS
V
CC
0.2 V,
CAS
V
CC
0.2 V,
All other inputs
V
SS
I
CC7
Self Refresh Current
400
m
A
CBR Cycle with t
RAS
t
RASS
(Min.) and
CAS = V
IL
V
CC
Supply Voltage
4.5
5.0
5.5
V
V
IL
Input Low Voltage
1
0.8
V
3
V
IH
Input High Voltage
2.4
V
CC
+ 1
V
3
V
OL
Output Low Voltage
0.4
V
I
OL
= 2 mA
V
OH
Output High Voltage
2.4
V
I
OH
= 2 mA
5
MOSEL VITELIC
V53C16258SH
V53C16258SH Rev 0.2 Aug. 1998
AC Characteristics
T
A
= 0
C to 70
C, V
CC
= 5 V
10%, V
SS
= 0V unless otherwise noted
AC Test conditions, input pulse levels 0 to 3V
#
Symbol
Parameter
50
Unit
Notes
Min.
Max.
1
t
RAS
RAS Pulse Width
50
75K
ns
2
t
RC
Read or Write Cycle Time
90
ns
3
t
RP
RAS Precharge Time
30
ns
4
t
CSH
CAS Hold Time
50
ns
5
t
CAS
CAS Pulse Width
9
ns
6
t
RCD
RAS to CAS Delay
19
36
ns
7
t
RCS
Read Command Setup Time
0
ns
4
8
t
ASR
Row Address Setup Time
0
ns
9
t
RAH
Row Address Hold Time
9
ns
10
t
ASC
Column Address Setup Time
0
ns
11
t
CAH
Column Address Hold Time
7
ns
12
t
RSH (R)
RAS Hold Time (Read Cycle)
10
ns
13
t
CRP
CAS to RAS Precharge Time
5
ns
14
t
RCH
Read Command Hold Time
Referenced to CAS
0
ns
5
15
t
RRH
Read Command Hold Time
Referenced to RAS
0
ns
5
16
t
ROH
RAS Hold Time Referenced
to OE
10
ns
17
t
OAC
Access Time from OE
14
ns
12
18
t
CAC
Access Time from CAS
14
ns
6, 7, 14
19
t
RAC
Access Time from RAS
50
ns
6, 8, 9
20
t
CAA
Access Time from Column
Address
24
ns
6, 7, 10
21
t
LZ
OE or CAS to Low-Z Output
0
ns
16
22
t
HZ
OE or CAS to High-Z Output
0
8
ns
16
23
t
AR
Column Address Hold Time from RAS
40
ns
24
t
RAD
RAS to Column Address
Delay Time
14
26
ns
11
25
t
RSH (W)
RAS or CAS Hold Time in
Write Cycle
10
ns
26
t
CWL
Write Command to CAS
Lead Time
14
ns
27
t
WCS
Write Command Setup Time
0
ns
12, 13
28
t
WCH
Write Command Hold Time
7
ns
29
t
WP
Write Pulse Width
7
ns
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