5
White Electronic Designs Corporation • Phoenix, AZ • (602) 437-1520
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS, WE CONTROLLED
(V
CC = 5.0V, TA = -55°C to +125°C)
WF512K32-XXX5
WF512K32-XXX5
WF512K32-XXX5
AC CHARACTERISTICS – READ ONLY OPERATIONS
(V
CC = 5.0V, TA = -55°C to +125°C)
Parameter Symbol -60 -70 -90 -120 -150 Unit
Min Max Min Max Min Max Min Max Min Max
Read Cycle Time tAVAV tRC 60 70 90 120 150 ns
Address Access Time tAVQV tACC 60 70 90 120 150 ns
Chip Select Access Time tELQV tCE 60 70 90 120 150 ns
Output Enable to Output Valid tGLQV tOE 30 35 35 50 55 ns
Chip Select to Output High Z (1) tEHQZ tDF 20 20 20 30 35 ns
Output Enable High to Output High Z (1) tGHQZ tDF 20 20 20 30 35 ns
Output Hold from Address, CS or OE Change, t
AXQX tOH 000 00ns
whichever is First
1. Guaranteed by design, but not tested
Parameter Symbol -60 -70 -90 -120 -150 Unit
Min Max Min Max Min Max Min Max Min Max
Write Cycle Time tAVAV tWC 60 70 90 120 150 ns
Chip Select Setup Time tELWL tCS 00000ns
Write Enable Pulse Width tWLWH tWP 40 45 45 50 50 ns
Address Setup Time tAVWH tAS 00000ns
Data Setup Time tDVWH tDS 40 45 45 50 50 ns
Data Hold Time tWHDX tDH 00000ns
Address Hold Time tWHAX tAH 40 45 45 50 50 ns
Write Enable Pulse Width High tWHWL tWPH 20 20 20 20 20 ns
Duration of Byte Programming Operation (1) tWHWH1 300 300 300 300 300 µs
Sector Erase Time (2) tWHWH2 15 15 15 15 15 sec
Read Recovery Time before Write tGHWL 00000ns
VCC Set-up Time tVCS 50 50 50 50 50 µs
Chip Programming Time 11 11 11 11 11 sec
Output Enable Setup Time tOES 00000ns
Output Enable Hold Time (4) tOEH 10 10 10 10 10 ns
Chip Erase Time (3) 64 64 64 64 64 sec
NOTES:
1. Typical value for t
WHWH1 is 7µs.
2. Typical value for t
WHWH2 is 1sec.
3. Typical value for Chip Erase Time is 8sec.
4. For Toggle and Data Polling.
