ml2500b Oki Optical Components, ml2500b Datasheet - Page 10

• Manufacturer Part Number: ml2500b
• Description: Analog-storage Single-chip Record/playback With Bit-cell Flash Memory
• Manufacturer: Oki Optical Components

MON(O)
Timing for Power-down operation with RESET pin
Timing for Record/Playback Operation
1. Timing for Recording Operation
The following chart shows timing for recording operation at 6.4 kHz sampling frequency. It is assumed that the
Start and Stop Addresses are set by the STADR and SPADR commands prior to the REC command input.
(Note 1) It takes about 210 ms (Typ.) for the LSI to start actual recording after the REC command input, as the
LSI first erase 1 sector before it can start recording.
(Note 2) When recording is stopped by the STOP command, the LSI continues to record until the last address of
the current page is reached. This “lag” recording time is the STOP command of about 62.5 ms (Typ.). Afterwards,
dummy recording is taken place up to the end of the following sector (max. 2 sectors). This dummy recording
takes about 200 ms (Typ.). The dummy recording is given in the device specification and the recording contents
are undefined.
(Note 3) It is recommended to use the power-down mode in order to reduce power consumption when record or
playback are not performed.
OKI Semiconductor
Bit(O)
Status
RESET(I)
CS(I)
RPM
Status
Power-down
Command-wait
Power-up
100 µs
t
PDWNR
Power-down with RESET pin
Command-wait
10 ms(Typ.)
REC command input
t
Power Down
RECM
t
RECR
Erasing
200 ms(Typ.)
62.5 ms(Typ.)
Recording
Powering Up
t
t
SPCM
Power-up with RESET pin
SPCR
t
PWUP
STOP command input
1 ms
200 ms(Typ.)
Command-wait
Dummy Recording
PDWN command input
FEDL2500BFULL-02
Command-wait
t
PDWN
Power-down
ML2500BTA
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