ISSI IS41C85120A IS41LV85120A Datasheet

This data sheet introduces IS41C85120A and IS41LV85120A, which are 524,288 x 8-bit high-performance CMOS Dynamic Random Access Memory. Both products offer accelerated cycle access EDO Page Mode. EDO Page Mode allows 512 random accesses within a single row with access cycle time as short as 10ns per 8-bit word. The Byte Write control, of upper and lower byte, makes the IS41C85120A and IS41LV85120A ideal for use in 16 and 32-bit wide data bus systems. These features make the IS41C85120A and IS41LV85120A ideally suited for high band-width graphics, digital signal processing, high-performance computing systems and peripheral applications.


ISSI IS41C85120A IS41LV85120A Datasheet - cover page
Brand
ISSI
Category
Memory
Document type
Datasheet
Language
English
Pages
21
File format
PDF
File size
125 KB
Published
02 August, 2012
Updated
30 September, 2023
MD5 checksum
BD1C439C04F8DACDFB6763124D6DA10E

About this manual

The ISSI IS41C85120A and IS41LV85120A are 524,288 x 8-bit high-performance CMOS Dynamic Random Access Memory devices. Both products offer accelerated cycle access EDO Page Mode, allowing 512 random accesses within a single row with an access cycle time as short as 10ns per 8-bit word. The Byte Write control for upper and lower bytes makes these devices ideal for use in 16 and 32-bit wide data bus systems.

What's inside

  • Description
  • Key Timing Parameters
  • Pin Descriptions
  • Functional Block Diagram
  • Truth Table
  • Functional Description
  • Absolute Maximum Ratings
  • Capacitance
  • Recommended Operating Conditions
  • Electrical Characteristics

Specifications

Capacity524,288 x 8-bit
Package28-pin SOJ
Refresh Interval1024 cycles/16 ms
Refresh ModeRAS-Only, CAS-before-RAS (CBR), and Hidden
Power Supply (IS41C85120A)5V ± 10%
Power Supply (IS41LV85120A)3.3V ± 10%
Max. RAS Access Time60 ns
Max. CAS Access Time15 ns
Min. Fast Page Mode Cycle Time40 ns
Min. Read/Write Cycle Time110 ns
Operating Temperature0 to +70 °C
Storage Temperature-55 to +125 °C

Frequently asked questions

What is the access cycle time for the IS41C85120A and IS41LV85120A?

The access cycle time is as short as 10ns per 8-bit word.

What refresh modes are supported by these DRAMs?

They support RAS-Only, CAS-before-RAS (CBR), and Hidden refresh modes.

Is a lead-free version available?

Yes, a lead-free version is available.

What is the required refresh interval?

1024 refresh cycles are required in each 16 ms period.

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