STM32H747AI datasheet(186/252 Pages) STMICROELECTRONICS

tên linh kiện	STM32H747AI

Giải thích chi tiết về linh kiện	Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI

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Electrical characteristics

STM32H747xI/G

176/242

DS12930 Rev 1

The following table summarizes the parameters measured in DDR mode.

tw(CKH)

QUADSPI clock high

and low time Even

division

PRESCALER[7:0] =

n = 0,1,3,5...

TCK/2–0.5

TCK/2

tw(CKL)

TCK/2

TCK/2+0.5

tw(CKH)

QUADSPI clock high

and low time Odd

division

PRESCALER[7:0] =

n = 2,4,6,8...

(n/2)*TCK/(n+1)-0.5

(n/2)*TCK/ (n+1)

tw(CKL)

(n/2+1)*TCK/(n+1)

(n/2+1)*TCK/

(n+1)+0.5

ts(IN)

Data input setup time

th(IN)

Data input hold time

3.5

tv(OUT)

Data output valid time

th(OUT)

Data output hold time

1. Guaranteed by characterization results.

Table 95. QUADSPI characteristics in SDR mode(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 96. QUADSPI characteristics in DDR mode(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Fck11/TCK

QUADSPI clock frequency

2.7<VDD<3.6 V

CL = 20 pF

100

MHz

1.62<VDD<3.6 V

CL = 15 pF

100

tw(CKH)

QUADSPI clock high and

low time Even division

PRESCALER[7:0] =

n = 0,1,3,5...

TCK/2–0.5

TCK/2

tw(CKL)

TCK/2

TCK/2+0.5

tw(CKH)

QUADSPI clock high and

low time Odd division

PRESCALER[7:0] =

n = 2,4,6,8...

(n/2)*TCK/

(n+1)-0.5

(n/2)*TCK/

(n+1)

tw(CKL)

(n/2+1)*TCK/

(n+1)

(n/2+1)*TCK /

(n+1)+0.5

tsr(IN), tsf(IN)

Data input setup time

1.5

thr(IN),thf(IN)

Data input hold time

3.5

tvr(OUT),

tvf(OUT)

Data output valid time

DHHC=0

DHHC=1

PRESCALER[7:0] =

1,2…

-TCK/4+1

TCK/4+2

thr(OUT),

thf(OUT)

Data output hold time

DHHC=0

DHHC=1

PRESCALER[7:0]=1

,2…

TCK/4

1. Guaranteed by characterization results.

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