Rainbow Electronics br9080af-w - Manual (Page 5)

BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W /
Memory ICs BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
5/12
!
! ! ! Operating timing characteristics
BR9080AF-W / ARFV-W / ARFVM-W, BR9016AF-W / ARFV-W / ARFVM-W
(Unless otherwise noted, Ta=
−40∼85°C, V CC =2.7V ∼5.5V)
Parameter Symbol Min. Typ. Max. Unit
f CSS 100 − − ns
t CSH 100 − − ns
t WCH
100 − − ns t
DIS
100 − − ns t DIH
− − 150 ns t PD1
− − 150 ns t PD0
− − 10 ms t E / W
250 − − ns t
CS
− − 150 ns t SV
0 − 150 ns t
OH
230 − − ns t WH
230 − − ns t WL
0 − − ns
0 − − ns
t WCS
CS setup time
Time when DO goes HIGH-Z (via CS)
Data clock high level time
Write control hold time
Data setup time
Data hold time
DO rise delay time
DO fall delay time
Self-timing programming cycle
CS minimum high level time
READY / BUSY display valid time
CS hold time
Data clock low level time
Write control setup time
!
! ! ! Timing chart
Synchronous Data Input Output Timing
CS
SK
DI
DO
WC
t DIS
t DIH
t CSS
t PD t OH
t CSH
t CS
t PD
t WL
t WH
· Input data are clocked in to DI at the rising edge of the clock (SK).
· Output data will toggle on the falling edge of the SK clock.
· The WC pin does not have any effect on the READ, EWEN and EWDS operations.
Fig.2