M95P16-IXMCSLASHEF datasheet(39/63 Pages) STMICROELECTRONICS

39 / 63 page

6.21

Deep power-down enter (B9h)

The Deep power-down enter (DPD) instruction puts the device in a very low consumption state, in which a limited

number of commands are available. This instruction is initiated by driving S low and shifting the instruction code

B9h into the D pin. The S pin must be held low for the whole length of the instruction. Pin S must be driven high

after the eighth bit has been latched, otherwise the instruction is not executed. After S is driven high, the device

enters in Deep power-down state after a delay of tDPD (see Table 15. Deep power-down conditions).

The instruction sequence is shown in Figure 31.

Figure 31. Deep power-down enter

Current

DPD instruction

tDPDSL

Standby current (ICC1)

Deep power-down current (ICC2)

MS54399V2

tDPD

While in Deep power-down state, only the Deep power-down release and Reset instructions (which restore

the device to normal operation) are recognized. The device is always in normal operation on power-up, with a

standby current of ICC1.

Refer to Table 15. Deep power-down conditions for the values of tDPD and tDPDSL.

6.22

Deep power-down release (ABh)

This instruction (RDPD) releases the device from Deep power-down state, putting it into Standby mode state.

The instruction is initiated by driving S low, and shifting the instruction code ABh into the D pin. The S pin must

be held low for the full length of the instruction. Pin S must be driven high after the eighth bit has been latched,

otherwise the instruction is not executed. After S is driven high, if the device is in Deep power-down mode,

the transition to Standby power mode is delayed by tRDPD, and S must remain high for at least tRDPSL(max),

as specified in Table 15. Deep power-down conditions). Once in Standby power mode, the device waits to be

selected, so that it can receive, decode, and execute instructions.

The RDPD instruction sequence is shown in Figure 32.

Figure 32. Deep power-down release

Current

Deep power-down current (ICC2)

RDPD instruction

Standby current (ICC1)

tRDPDSL

MS55492V2

Refer to Table 15. Deep power-down conditions for tDPD and tRDPDSL.

M95P16-I M95P16-E

Deep power-down enter (B9h)

DS13710 - Rev 1

page 39/63

M95P16-IXMC/EF Datasheet(PDF) 39 Page - STMicroelectronics

M95P16-IXMC/EF Datasheet(HTML) 39 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

Datasheet Download

Link URL