V53C8256HP50 Mosel-Vitelic, V53C8256HP50 Datasheet

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V53C8256HP50

Manufacturer Part Number
V53C8256HP50
Description
Manufacturer
Mosel-Vitelic
Datasheet
MOSEL VITELIC
Features
Device Usage Chart
V53C8256H Rev. 1.2 July 1997
HIGH PERFORMANCE
Max. RAS Access Time, (t
Max. Column Address Access Time, (t
Min. Fast Page Mode Cycle Time, (t
Min. Read/Write Cycle Time, (t
Temperature
256K x 8-bit organization
Fast Page Mode for a sustained data rate
of 47 MHz
RAS access time: 35, 40, 45, 50 ns
Low power dissipation
Read-Modify-Write, RAS-Only Refresh,
CAS-Before-RAS Refresh capability
Refresh Interval: 512 cycles/8 ms
Single 5V
Available in 24-pin 300 mil Plastic DIP,
26/24-pin 300 mil SOJ, and 28-pin TSOP-I
packages
0 C to 70 C
Operating
Range
10% Power Supply
P
RAC
Package Outline
)
RC
)
V53C8256H
ULTRA-HIGH SPEED,
256K x 8 FAST PAGE MODE
CMOS DYNAMIC RAM
PC
K
CAA
)
)
T
35 ns
18 ns
21 ns
70 ns
50
35
Access Time (ns)
1
Description
CMOS dynamic random access memory. The
V53C8256H offers a combination of features: Fast
Page Mode for high data bandwidth, fast usable
speed, CMOS standby current.
and output capacitances are significantly lowered to
allow increased system performance. Fast Page
Mode operation allows random access of up to 512
(x8) bits within a row with cycle times as short as 21
ns. Because of static circuitry, the CAS clock is not
in the critical timing path. The flow-through column
address latches allow address pipelining while re-
laxing many critical system timing requirements for
fast usable speed. These features make the
V53C8256H ideally suited for graphics, digital sig-
nal processing and high performance computing
systems.
The V53C8256H is a high speed 262,144 x 8 bit
All inputs and outputs are TTL compatible. Input
60
40 ns
20 ns
23 ns
75 ns
40
70
Power
Std.
45 ns
22 ns
25 ns
80 ns
45
PRELIMINARY
Temperature
Mark
Blank
50 ns
24 ns
28 ns
90 ns
50

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V53C8256HP50 Summary of contents

Page 1

V53C8256H MOSEL VITELIC ULTRA-HIGH SPEED, 256K x 8 FAST PAGE MODE CMOS DYNAMIC RAM HIGH PERFORMANCE Max. RAS Access Time RAC Max. Column Address Access Time, (t CAA Min. Fast Page Mode Cycle Time Min. ...

Page 2

MOSEL VITELIC V Description Pkg. Pin Count Plastic DIP P 24 SOJ K 26/24 TSOP 24-Pin Plastic DIP PIN CONFIGURATION Top View VSS VSS 1 24 I/O1 I/ I/O2 I/ I/O3 I/ ...

Page 3

MOSEL VITELIC Absolute Maximum Ratings* Ambient Temperature Under Bias .............................. – +80 C Storage Temperature (plastic) ...... - +125 C Voltage Relative to V ...................–1.0V to +7.0V SS Data Output Current ..................................... 50 mA Power Dissipation ...

Page 4

MOSEL VITELIC DC and Operating Characteristics 10 Symbol Parameter I Input Leakage Current LI (any input pin) I Output Leakage Current LO (for High-Z State) I ...

Page 5

MOSEL VITELIC AC Characteristics 10 Test conditions, input pulse levels JEDEC # Symbol Symbol Parameter RAS Pulse Width RL1RH1 ...

Page 6

MOSEL VITELIC AC Characteristics (Cont’d) JEDEC # Symbol Symbol Parameter Write Pulse Width WL1WH1 Write Command Hold Time RL1WH1 WCR from RAS Write Command to RAS Lead WL1RH1 RWL Time ...

Page 7

MOSEL VITELIC Notes dependent on output loading when the device output is selected. Specified I CC output open dependent upon the number of address transitions. Specified I CC transitions per address cycle in Fast ...

Page 8

MOSEL VITELIC Waveforms of Read Cycle V IH RAS CRP (13 CAS ASR ( ADDRESS ROW ADDRESS ...

Page 9

MOSEL VITELIC Waveforms of Write Cycle (OE Controlled Write RAS CRP (13 CAS ASR ( ADDRESS ROW ADDRESS ...

Page 10

MOSEL VITELIC Waveforms of Fast Page Mode Read Cycle V IH RAS CRP (13 CAS ASR ( ROW ADDRESS ADDRESS RCS ( ...

Page 11

MOSEL VITELIC Waveforms of Fast Page Mode Read-Write Cycle V IH RAS RCD ( CAS t RAD (24 RAH (9) t ASR ( ROW ADDRESS ADDRESS ADD ...

Page 12

MOSEL VITELIC Waveforms of CAS-before-RAS Refresh Counter Test Cycle V IH RAS CSR (47 CAS ADDRESS V IL READ CYCLE ...

Page 13

MOSEL VITELIC Waveforms of Hidden Refresh Cycle (Read RAS RCD (6) t CRP (13 CAS ASR (8) t RAH ( ROW ADDRESS ADD RCS (7) ...

Page 14

MOSEL VITELIC Functional Description The V53C8256H is a CMOS dynamic RAM opti- mized for high data bandwidth, low power applica- tions functionally similar to a traditional dynamic RAM. The V53C8256H reads and writes data by multiplexing an 18-bit ...

Page 15

MOSEL VITELIC Fast Page Mode provides a sustained data rate of 47 MHz for applications that require high data rates such as bit-mapped graphics or high-speed signal processing. The following equation can be used to calculate the maximum data rate: ...

Page 16

MOSEL VITELIC Package Diagrams 24-Pin 300 mil PDIP 1.310 Max. [33.27 Max.] 0.005 – 0.050 [0.127 – 1.27] .100 Typ. [2.54 Typ.] 0.048 – 0.065 [1.22 – 1.65] 26/24-Pin 300 mil SOJ 0.665 – 0.698 [16.89 – 17.73] 0.082 – ...

Page 17

MOSEL VITELIC 28-Pin TSOP-I .035 – .043 [.889 – 1.09] .520 – .535 [13.21 – 13.59] .039 DIA. [.991 DIA] .461 – .469 [11.71 – 11.91] .035 – .043 [.889 – 1.09] .55 [13.97] 0.25 0.10 Top View [6.35] [2.54] ...

Page 18

... MOSEL VITELIC makes no commitment to update or keep cur- rent the information contained in this document. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of MOSEL-VITELIC. MOSEL VITELIC 3910 N. First Street, San Jose, CA 95134-1501 Ph: (408) 433-6000 Fax: (408) 433-0952 Tlx: 371-9461 JAPAN RM ...

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