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Part: PDM4M4030S12Z
Category:
Memory
-> SRAM
-> Modules
-> 256 KB
Description: 64K X 32 CMOS Static RAM Module
Company: IXYS Corporation
Datasheet: Download PDM4M4030S12Z datasheet File size : 333 kB
Request For quote: Find where to buy PDM4M4030S12Z
Datasheet text preview:
PDM4M4030
64K x 32 CMOS Static RAM Module Features:
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High-density 2 megabit Static RAM module Low profile 64-pin ZIP (Zig-zag In-line vertical Package), 64-pin SIMM or Angled SIMM (Single In-line Memory Module) Ultra fast access time: 10 ns (max.) Surface mounted plastic components on an epoxy laminate (FR-4) substrate Single 5V (±10%) power supply Multiple VSS pins and decoupling capacitors for maximum noise immunity Inputs/outputs directly TTL compatible
The PDM4M4030 is packaged in a 64-pin FR-4 ZIP (Zig-zag In-line vertical Package), a 64-pin SIMM or Angled SIMM (Single In-line Memory Module). The ZIP configuration allows 64 pins to be placed on a package 3.65" long and 0.35" wide. At only 0.650" high, this low-profile package is ideal for systems with minimum board spacing. The SIMM configuration allows use of edge mounted sockets to secure the module. All inputs and outputs of the PDM4M4030 are TTL compatible and operate from a single 5V supply. Full asynchronous circuitry requires no clock or refresh for operation and provides equal access and cycle times for ease of use. Two identification pins (PD0 and PD1) are provided for applications in which different density versions of the module are used. In this way, the target system can read the respective levels of PD0 and PD1 to determine a 64K depth.
Description:
The PDM4M4030 is a 64K x 32 static RAM module constructed on an epoxy laminate (FR-4) substrate using eight 64K x 4 static RAMs in plastic SOJ packages. Availability of four chip select lines (one for each of two RAMs) provides byte access. Extremely fast speeds can be achieved due to the use of 256K Static RAMs fabricated in Paradigm's highperformance, high-reliability CMOS technology. The PDM4M4030 is available with access times as fast as 10 ns with minimal power consumption.
Functional Block Diagram
CS1
ADDRESS 16
CS2
CS3
CS4
2 PD
9 10 11
WE OE
8 8
64K x 32 RAM
8
8
I/O31-I/O0
12
8-25
Rev 2.2 - 7/17/97
PDM4M4030 Pin Configuration(1)
PD0 I I/O0 I/O1 I/O2 V3 /O Ac c A7 A8 I9 I/O4 I/O5 I/O6 /W 7 O AE C 14 CS1 N3 S VC I ss I/O16 I/O17 I/O18 /O19 A A10 A11 A12 I 13 I/O20 I/O21 I/O22 /O23 V ss 2 6 4 8 1 10 12 14 16 28 20 22 24 26 38 30 32 ZIP, SIMM
TOP VIEW
Pin Assignment
3 1 5 7 9 P Vss I D1 I/O8 I/O9 I/O10 AO11 / A0 A1 I2 I/O12 I/O13 I/O14 VO15 / Ass C15 CS2 NS4 OC IE I/O24 I/O25 I/O26 AO27 / A3 A4 V5 Acc I6 I/O28 I/O29 I/O30 /O31 PD0 - OPEN PD1 - Vss
Pin
I/O31-I/O0 A15-A0
CS
Signal
Data Inputs/Outputs Addresses Chip Selects Write Enable Output Enable Depth Identification Power Ground No Connect
4-CS1
1 11 13 15 17 29 21 23 25 27 39 31 33 35 37 49 41 43 45 47 59 51 53 55 57 69 61 3
WE OE
PD1-PD0 VCC VSS NC
34 36 48 40 42 44 46 58 50 52 54 56 68 60 62 4
NOTE: 1. Pins 2 and 3 (PD0 and PD1) are read by the user to determine the density of the module. If PD0 reads OPEN and PD1 reads VSS then the module has a 64K depth.
8-26
Rev 2.2 - 7/17/97
PDM4M4030
Truth Table
Mode Deselect/ Power-down Read Write Deselect
CS OE WE
Output High-Z DATAOUT DATAIN High-Z
Power Standby Active Active Active
1 2 3
H L L L
X L X H
X H L H
Absolute Maximum Ratings(1)
Symbol VTERM TBIAS TSTG TA PT IOUT Rating Terminal Voltage with Respect to VSS Temperature Under Bias Storage Temperature Operating Temperature Power Dissipation DC Output Current Com'l. 0.5 to +7.0 10 to +85 55 to +125 0 to +70 1.0 50 Ind. 0.5 to +7.0 10 to +85 65 to +150 0 to +70 1.0 50 Unit V °C °C °C W mA
4 5 6 7 8
NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended DC Operating Conditions
Symbol VCC VSS Commercial Parameter Supply Voltage Supply Voltage Ambient Temperature Min. 4.75 0 0 Typ. 5.0 0 25 Max. 5.25 0 70 Unit V V °C
9 10 11 12
Rev 2.2 - 7/17/97
8-27
Others parts begin by pd
PD-1 PD-2 PD-3 PD-4 PD-5 PD-6 PD-7 PD-8 PD-9 PD-10 PD-11 PD-12 PD-13 PD-14 PD-15 PD-16 PD-17 PD-18 PD-19 PD-20
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