STK11C68P45I Cypress Semiconductor Corp, STK11C68P45I Datasheet
STK11C68P45I
Specifications of STK11C68P45I
Related parts for STK11C68P45I
STK11C68P45I Summary of contents
Page 1
FEATURES • 20ns, 25ns, 35ns and 45ns Access Times • STORE to EEPROM Initiated by Software • RECALL to SRAM Initiated by Software or Power Restore • 10mA Typical I at 200ns Cycle Time CC • Unlimited READ, WRITE and ...
Page 2
STK11C68 ABSOLUTE MAXIMUM RATINGS Voltage on Input Relative –0. Voltage ...
Page 3
SRAM READ CYCLES #1 & #2 SYMBOLS NO. #1, #2 Alt Chip Enable Access Time ELQV ACS Read Cycle Time AVAV Address Access Time AVQV ...
Page 4
STK11C68 SRAM WRITE CYCLES #1 & #2 SYMBOLS NO Alt Write Cycle Time AVAV AVAV Write Pulse Width WLWH WLEH Chip Enable to End ...
Page 5
STORE INHIBIT/POWER-UP RECALL SYMBOLS NO. Standard 22 t Power-up RECALL Duration RESTORE 23 t STORE Cycle Duration STORE 24 V Low Voltage Trigger Level SWITCH 25 V Low Voltage Reset Level RESET Note l: t starts from the time V ...
Page 6
STK11C68 SOFTWARE STORE/RECALL MODE SELECTION (hex 0000 1555 0AAA L H 1FFF 10F0 0F0F 0000 1555 0AAA L H 1FFF 10F0 0F0E Note m: The six consecutive addresses must be in the order ...
Page 7
The STK11C68 is a versatile memory chip that pro- vides several modes of operation. The STK11C68 can operate as a standard shadow to which the EEPROM tion can be copied or from which the ...
Page 8
STK11C68 Internally two-step procedure. First, RECALL the data is cleared, and second, the nonvola- SRAM tile information is transferred into the After the t cycle time the SRAM RECALL be ready for and READ WRITE operation in no ...
Page 9
STK11C68 June 1999 ORDERING INFORMATION - Temperature Range Blank = Commercial (0 to 70˚ Industrial (–40 to 85˚C Access Time 20 = 20ns (Commercial only 25ns 35 = 35ns 45 = 45ns Package ...
Page 10
STK11C68 June 1999 4-30 ...