CY7C1399B

Document #: 38-05071 Rev. *A Page 7 of 10

Notes:
13. Data I/O is high impedance if OE = VIH.
14. If CE goes HIGH simultaneously with WE HIGH, the ou tput r emains i n a high -impeda nce s tate.
15. During this period, the I/Os are in the output state and input signals sh ould not be applied.
Switching Waveforms (continued)
tHD
tSD
tPWE
tSA
tHA
tAW
tWC
DATA I/O
ADDRESS
CE
WE
OE
tHZOE
DATAINVALID

Write Cycle No. 1 (WE Controlled)[8, 13, 14]

NOTE 15
tWC
tAW
tSA
tHA
tHD
tSD
tSCE
WE
DATA I/O
ADDRESS
CE
DATAINVALID

Write Cycle No. 2 (CE Controlled)[8, 13, 14]

DATA I/O
ADDRESS
tHD
tSD
tLZWE
tSA
tHA
tAW
tWC
CE
WE
tHZWE
DATAIN VALID

Write Cycle No. 3 (WE Controlled, OE LOW)[9, 14]

NOTE 15