STM32F722IC datasheet(193/229 Pages) STMICROELECTRONICS

tên linh kiện	STM32F722IC

Giải thích chi tiết về linh kiện	Arm Cortex-M7 32b MCUFPU, 462DMIPS, up to 512KB Flash

PDF	229 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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193 / 229 page

DS11853 Rev 6

193/229

STM32F722xx STM32F723xx

Electrical characteristics

201

Figure 73. NAND controller waveforms for common memory write access

Table 105. Switching characteristics for NAND Flash read cycles(1)

1. Guaranteed by characterization results.

Symbol

Parameter

Min

Max

Unit

tw(N0E)

FMC_NOE low width

4Thclk -0.5

4Thclk +0.5

tsu(D-NOE)

FMC_D[15-0] valid data before FMC_NOE high

th(NOE-D)

FMC_D[15-0] valid data after FMC_NOE high

td(ALE-NOE) FMC_ALE valid before FMC_NOE low

3Thclk +1.5

th(NOE-ALE) FMC_NWE high to FMC_ALE invalid

4Thclk - 2

Table 106. Switching characteristics for NAND Flash write cycles(1)

1. Guaranteed by characterization results.

Symbol

Parameter

Min

Max

Unit

tw(NWE)

FMC_NWE low width

4Thclk -0.5

4Thclk +0.5

tv(NWE-D)

FMC_NWE low to FMC_D[15-0] valid

th(NWE-D)

FMC_NWE high to FMC_D[15-0] invalid

2Thclk - 1

td(D-NWE)

FMC_D[15-0] valid before FMC_NWE high

5Thclk - 1

td(ALE-NWE)

FMC_ALE valid before FMC_NWE low

3Thclk +1.5

th(NWE-ALE)

FMC_NWE high to FMC_ALE invalid

2Thclk - 2

MS32770V1

tw(NWE)

th(NWE-D)

tv(NWE-D)

FMC_NWE

FMC_N OE

FMC_D[15:0]

td(D-NWE)

ALE (FMC_A17)

CLE (FMC_A16)

FMC_NCEx

td(ALE-NOE)

th(NOE-ALE)

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