|
Details, datasheet, quote on part number:V53C316405A50
| |
Datasheet text preview:
MOSEL VITELIC
V53C316405A 3.3 VOLT 4M x 4 EDO PAGE MODE CMOS DYNAMIC RAM
V53C316405A
Max. RAS Access Time, (tRAC) Max. Column Address Access Time, (tCAA) Min. Extended Data Out Page Mode Cycle Time, (tPC) Min. Read/Write Cycle Time, (tRC)
50
50 ns 25 ns 20 ns 84 ns
60
60 ns 30 ns 25 ns 104 ns
Features
s 4M x 4-bit organization s EDO Page Mode for a sustained data rate of 50 MHz s RAS access time: 50, 60 ns s Low power dissipation s Read-Modify-Write, RAS-Only Refresh, CAS-Before-RAS Refresh and Hidden Refresh s Refresh Interval: 4096 cycles/64 ms s Available in 24/26-pin 300 mil SOJ, and 24/26-pin 300 mil TSOP-II s Single +3.3V ± 0.3V Power Supply s TTL Interface
Description
The V53C316405A is a 4,194,304 x 4 bit highperformance CMOS dynamic random access memory. The V53C316405A offers Page mode operation with Extended Data Output. The V53C316405A has asymmetric address, 12-bit row and 10-bit column. All inputs are TTL compatible. EDO Page Mode operation allows random access up to 1024 x 4 bits, within a page, with cycle times as short as 20ns. These features make the V53C316405A ideally suited for a wide variety of high performance computer systems and peripheral applications.
Device Usage Chart
Operating Temperature Range
0°C to 70°C
Package Outline K
·
Access Time (ns) 50
·
Power Std.
·
T
·
60
·
Temperature Mark
Blank
V53C316405A Rev. 1.2 March 1998
1
MOSEL VITELIC
24/26-Pin Plastic SOJ/TSOP-II PIN CONFIGURATION Top View
VCC I/O1 I/O2 WE RAS A11 A10 A0 A1 A2 A3 VCC 1 2 3 4 5 6 9 10 11 12 13 26 25 24 23 22 21 19 18 17 16 15 14
311640500-02
V53C316405A
VSS I/O4 I/O3 CAS OE A9 A8 A7 A6 A5 A4 VSS
Pin Names
A0A11 RAS CAS WE OE I/O1I/O4 VCC VSS NC Row, Column Address Inputs Row Address Strobe Column Address Strobe Write Enable Output Enable Data Input, Output +3.3V Supply 0V Supply No Connect
V53C316405A Rev. 1.2 March 1998
2
MOSEL VITELIC
Absolute Maximum Ratings*
Operating temperature range .........0 to 70 °C Storage temperature range ...... -55 to 150 °C Input/output voltage .... -0.5 to min (VCC+0.5, 4.6) V Power supply voltage .. -1.0 to 4.6 V Power dissipation ......... 0.5 W Data out current (short circuit) .... 50 mA
*Note: Operation above Absolute Maximum Ratings can adversely affect device reliability.
V53C316405A
TA = 25°C, VCC = 3.3 V ± 0.3V, VSS = 0 V
Symbol CIN1 CIN2 COUT Parameter Address Input RAS, CAS, WE, OE Data Input/Output Typ. -- -- -- Max. 5 7 7 Unit pF pF pF
Capacitance*
*Note: Capacitance is sampled and not 100% tested.
Block Diagram
4096 x 4
I/O1 I/O2 I/O3 I/O4
Data In Buffer WE CAS 4
Data Out Buffer 4
OE
No. 2 Clock Generator
10 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 12
Column Address Buffers (10)
10
Column Decoder
Refresh Controller Sense Amplifier I/O Gating Refresh Counter (12) 12 Row Address Buffers (11) 12 Row Decoder 4096 Memor y Array 4096 x 1024 x 4 1024 x4
4
RAS
No. 1 Clock Generator
Voltage Down Generator
VCC
311640502-04
VCC (internal)
V53C316405A Rev. 1.2 March 1998
3
|
|
