STM32F722IC datasheet(183/229 Pages) STMICROELECTRONICS

183 / 229 page

DS11853 Rev 6

183/229

STM32F722xx STM32F723xx

Electrical characteristics

201

Figure 65. Asynchronous multiplexed PSRAM/NOR write waveforms

Table 99. Asynchronous multiplexed PSRAM/NOR write timings(1)

Symbol

Parameter

Min

Max

Unit

tw(NE)

FMC_NE low time

4Thclk -1

4Thclk +1

tv(NWE_NE)

FMC_NEx low to FMC_NWE low

Thclk -0.5

Thclk +0.5

tw(NWE)

FMC_NWE low time

2Thclk -0.5

2Thclk +0.5

th(NE_NWE)

FMC_NWE high to FMC_NE high hold time

Thclk -0.5

tv(A_NE)

FMC_NEx low to FMC_A valid

tv(NADV_NE)

FMC_NEx low to FMC_NADV low

0.5

tw(NADV)

FMC_NADV low time

Thclk

Thclk +1

th(AD_NADV)

FMC_AD(adress) valid hold time after

FMC_NADV high)

Thclk +0.5

th(A_NWE)

Address hold time after FMC_NWE high

Thclk +0.5

th(BL_NWE)

FMC_BL hold time after FMC_NWE high

Thclk -0.5

tv(BL_NE)

FMC_NEx low to FMC_BL valid

0.5

tv(Data_NADV)

FMC_NADV high to Data valid

Thclk +1.5

th(Data_NWE)

Data hold time after FMC_NWE high

Thclk +0.5

NBL

Data

FMC_ NEx

FMC_ NBL[1:0]

FMC_ AD[15:0]

tv(BL_NE)

th(Data_NWE)

FMC_NOE

Address

FMC_ A[25:16]

tv(A_NE)

tw(NWE)

FMC_NWE

tv(NWE_NE)

t h(NE_NWE)

th(A_NWE)

th(BL_NWE)

t v(A_NE)

tw(NE)

MS32756V1

Address

FMC_NADV

t v(NADV_NE)

tw(NADV)

tv(Data_NADV)

th(AD_NADV)

FMC_NWAIT

tsu(NWAIT_NE)

th(NE_NWAIT)

STM32F722IC Datasheet(PDF) 183 Page - STMicroelectronics

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