STK12C68-S35 Cypress Semiconductor Corp, STK12C68-S35 Datasheet - Page 21

• Manufacturer Part Number: STK12C68-S35
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK12C68-S35

• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 35ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOIC
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 70C
• Pin Count: 28
• Mounting: Surface Mount
• Supply Current: 75mA
• Lead Free Status / RoHS Status: Not Compliant

Document Control #ML0008 Rev 2.0
Document Revision History
SIMTEK STK12C68, STK12C68-5 Datasheet, June 2008
Copyright 2008, Simtek Corporation. All rights reserved.
This datasheet may only be printed for the expressed use of Simtek Customers. No part of the datasheet may be reproduced in any other
form or means without the express written permission from Simtek Corporation. The information contained in this publication is believed to be
accurate, but changes may be made without notice. Simtek does not assume responsibility for, or grant or imply any warranty, including
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE regarding this information, the product or its use. Nothing herein consti-
tutes a license, grant or transfer of any rights to any Simtek patent, copyright, trademark, or other proprietary right.
Revision
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
2.0
June, 2008
December 2002
January 2003
July 2003
September 2003 Added lead-free lead finish
October 2003
March 2006
August 2006
February 2007
July 2007
June 2008
Date
Summary
Combined commercial, industrial and military data sheets. Removed 20 nsec device.
Added 35ns SMD to order information
Added “28 - SOIC” label to page 1 pinout drawing
Restored “W” 600 mil DIP package to ordering information
Removed Commercial 35 ns and leaded lead finish, Removed Military 45ns device
Reformat SMD Ordering Information to SDDC Part Number Format
Add Fast Power-Down Slew Rate Information
Restore Comm/Ind C & L Package Options
Add Tape Reel Ordering Options
Add Product Ordering Code Listing
Add Package Outline Drawings
Reformat Entire Document
extend definition of t
update fig. SRAM READ CYCLE #2, SRAM WRITE CYCLE #1,
update notes in tables HARDWARE STORE CYCLE, AutoStore / POWER_UP RECALL,
update Note s and Note u
split off SOFTWARE STORE / RECALL MODE SELEKTION table to clarify product usage
Added STK-12C68-5 part number to header.
Page 3: in the DC characteristics table, identified access times valid for commercial and industrial appli-
cations only; referred users to Website for package thermal characteristics.
Page 4: in SRAM Read Cycles #1 & #2 table, revised description for t
Symbol #2 to
title to add G controlled.
Page 11: under HSB Operation, revised first paragraph to read “The HSB pin has a very resistive
pullup...”
Page 14: added access time column to table.
t
ELEH
for Read Cycle Time; updated SRAM Read Cycle #2 timing diagram and changed
HZ
STK12C68, STK12C68-5 (SMD5962-94599)
(#7)
21
ELQX
and t
ELQX
, and changed