MB85R1001A
10 DS501-00003-1v0-E
■ POWER ON/OFF SEQUENCE
(within recommended operating conditions)
■ NOTES ON USE
After the IR reflow completed, it is not guaranteed to hold the data written prior to the IR reflow.
Parameter Symbol
Value
Unit
Min Typ Max
CE
1 level hold time for Power OFF tPD 85 ⎯⎯ns
CE
1 level hold time for Power ON tPU 85 ⎯⎯ns
Power supply rising time tR 0.05 ⎯ 200 ms
CE1 > VCC × 0.8* CE1 : Don't Care CE1 > VCC × 0.8*
tPUtRtPD
VCC
CE2
3.0 V
1.0 V
VIH (Min)
V
IL (Max)
0 V
CE1
CE1
VCC
CE2
3.0 V
1.0 V
VIH (Min)
V
IL (Max)
0 V
* : CE1 (Max) < VCC + 0.5 V
Notes: • Use either of CE
1 or CE2, or both for disable control of the device.
• Because turning the power-on from an intermediate level cause malfunction, when the
power is turned on, VCC is required to be started from 0 V.
• If the device does not operate within the specified conditions of read cycle, write cycle,
power on/off sequence, memory data can not be guaranteed.
• When turning the power on or off, it is recommended that CE2 is connected to ground to
prevent unexpected writing.
CE2 ≤ 0.2 V
