Cypress CY7C1399B Switching Characteristics , Data Retention Characteristics

CY7C1399B
Document #: 38-05071 Rev. *A Page 5 of 10
Switching Characteristics Over the Operating Range[5] (Continued)
1399B–15 1399B–20
Parameter Description Min. Max. Min. Max. Unit
READ CYCLE
tRC Read Cycle Time 15 20 ns
tAA Address to Data Valid 15 20 ns
tOHA Data Hold from Address Change 3 3 ns
tACE CE LOW to Data Valid 15 20 ns
tDOE OE LOW to Data Valid 6 7 ns
tLZOE OE LOW to Low Z[6] 0 0 ns
tHZOE OE HIGH to High Z[6, 7] 6 6 ns
tLZCE CE LOW to Low Z[6] 3 3 ns
tHZCE CE HIGH to High Z[6, 7] 7 7 ns
tPU CE LOW to Power-Up 0 0 ns
tPD CE HIGH to Power-Down 15 20 ns
WRITE CYCLE[8, 9]
tWC Write Cycle Time 15 20 ns
tSCE CE LOW to Write End 10 12 ns
tAW Address Set-Up to Write End 10 12 ns
tHA Address Hold from Write End 0 0 ns
tSA Address Set-Up to Write Start 0 0 ns
tPWE WE Pulse Width 10 12 ns
tSD Data Set-Up to Write End 810 ns
tHD Data Hold from Write End 0 0 ns
tHZWE WE LOW to High Z[8] 7 7 ns
tLZWE WE HIGH to Low Z[6] 3 3 ns
Data Retention Characteristics (Over the Operating Range - L version only)
Parameter Description Conditions Min. Max. Unit
VDR VCC for Data Retention 2.0 V
ICCDR Data Retention Current Com’l VCC = VDR = 2.0V,
CE > VCC – 0.3V,
VIN > VCC – 0.3V or
VIN < 0.3V
020 uA
tCDR Chip Deselect to Data
Retention Time 0ns
tROperation Recovery Time tRC ns