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CDP1823E Datasheet(PDF) 1 Page - Intersil Corporation |
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CDP1823E Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 7 page 6-24 Features • Fast Access Time -VDD = 5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450ns -VDD = 10V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250ns • Common Data Inputs and Outputs • Multiple Chip Select Inputs to Simplify Memory System Expansion Description The CDP1823 and CDP1823C are 128-word by 8-bit CMOS SOS static random-access memories. These memories are compatible with general-purpose microprocessors. The two memories are functionally identical. They differ in that the CDP1823 has a recommended operating voltage range of 4V to 10.5V, and the CDP1823C has a recommended oper- ating voltage range of 4V to 6.5V. The CDP1823 memory has 8 common data input and data output terminals for direct connection to a bidirectional data bus and is operated from a single voltage supply. Five chip- select inputs are provided to simplify memory-system expan- sion. In order to enable the CDP1823, the chip-select inputs CS2, CS3 and CS5 require a low input signal, and the chip- select inputs CS1 and CS4 require a high input signal. The MRD signal enables all 8 output drivers when in the low state and should be in a high state during a write cycle. After valid data appear at the output, the address inputs may be changed immediately. Output data will be valid until either the MRD signal goes high, the device is deselected, or tAA (access time) after address changes. Pinout Ordering Information 5V 10V PACKAGE TEMP. RANGE PKG. NO. CDP1823CE CDP1823E PDIP -40oC to +85oC E24.6 CDP1823CD CDP1823D SBDIP -40oC to +85oC D24.6 CDP1823CDX - Burn-In D24.6 CDP1823, CDP1823C (PDIP, SBDIP) TOP VIEW 1 2 3 4 5 6 7 8 9 10 11 12 BUS 0 BUS 1 BUS 2 BUS 3 BUS 4 BUS 5 BUS 6 BUS 7 CS1 CS2 CS3 VSS 16 17 18 19 20 21 22 23 24 15 14 13 VDD MA1 MA2 MA3 MA4 MA6 MRD CS5 CS4 MA0 MA5 MWR March 1997 CDP1823, CDP1823C 128-Word x 8-Bit LSI Static RAM File Number 1198.2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 |
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Descripción similar - CDP1823E |
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