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Part: M14429EJ4V0DS00
Category:
Memory
-> SRAM
-> SRAM
Description:
Company: NEC Electronics Inc.
Datasheet: Download M14429EJ4V0DS00 datasheet File size : 24 kB
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Datasheet text preview:
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD444008L
4M-BIT CMOS FAST SRAM 512K-WORD BY 8-BIT
Description
The µPD444008L is a high speed, low power, 4,194,304 bits (524,288 words by 8 bits) CMOS static RAM. Operating supply voltage is 3.3 V ± 0.3 V. The µPD444008L is packaged in 36-pin PLASTIC SOJ.
Features
· 524,288 words by 8 bits organization · Fast access time : 8, 10, 12, ns (MAX.) · Output Enable input for easy application · Single +3.3 V power supply
Ordering Information
Part number Package Access time ns (MAX.) Supply current mA (MAX.) At operating 185 165 155 At standby 5
µPD444008LLE-A8 µPD444008LLE-A10 µPD444008LLE-A12
36-pin PLASTIC SOJ (10.16 mm (400))
8 10 12
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.
Document No. M14429EJ4V0DS00 (4th edition) Date Published May 2002 NS CP(K) Printed in Japan
The mark
shows major revised points.
©
1999
µPD444008L
Pin Configuration (Marking Side)
/××× indicates active low signal. 36-pin PLASTIC SOJ (10.16 mm (400))
A0 A1 A2 A3 A4 /CS I/O1 I/O2 VCC GND I/O3 I/O4 /WE A5 A6 A7 A8 A9
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
NC A18 A17 A16 A15 /OE I/O8 I/O7 GND VCC I/O6 I/O5 A14 A13 A12 A11 A10 NC
A0 - A18 /CS /W E /OE VCC GND NC
: Address Inputs : Chip Select : W rite Enable : Output Enable : Power supply : Ground : No connection
I/O1 - I/O8 : Data Inputs / Outputs
Remark Refer to Package Drawing for the 1-pin index mark.
2
Data Sheet M14429EJ4V0DS
µPD444008L
Block Diagram
Address buffer
A0 | A18
Row decoder
Memory cell array 4,194,304 bits
I/O1 | I/O8
Input data controller
Sense amplifier / Switching circuit Column decoder
Output data controller
Address buffer
/CS
/OE
/WE VCC GND
Truth Table
/CS H L L L /OE /W E Mode Not selected Read W rite Output disable I/O High impedance DOUT DIN High impedance Supply current ISB ICC
×
L
×
H L H
×
H
Remark × : Don't care
Data Sheet M14429EJ4V0DS
3
Others parts begin by m1
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