STM32U5A5QJ datasheet(330/382 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32U5Axxx

330/382

DS13543 Rev 1

tw(CLKH) OCTOSPI clock

high and low time

(even division)

PRESCALER[7:0] = n

(n = 0, 1, 3, 5,..255)

t(CLK)/2 - 0.5

t(CLK)/2 + 0.5

tw(CLKL)

t(CLK)/2 - 0.5

t(CLK)/2 + 0.5

tw(CLKH) OCTOSPI clock

high and low time

(odd division)

PRESCALER[7:0] = n

(n = 2, 4, 6,..254)

(n/2) × t(CLK)

/(n+1) - 0.5

(n/2) × t(CLK)

/(n+1) + 0.5

tw(CLKL)

((n/2)+1) × t(CLK)

/(n+1) - 0.5

((n/2)+1) × t(CLK)

/(n+1) + 0.5

tsr(IN)

tsf(IN)

Data input setup

time

Voltage range 1

3.25

Voltage range 4

3.75

thr(IN)

thf(IN)

Data input hold

time

Voltage range 1

Voltage range 4

1.5

tvr(OUT)

tvf(OUT)

Data output valid

time, DHQC = 0

Voltage range 1

9.25

Voltage range 4

13.25

19.75

Data output valid

time, DHQC = 1

Voltage range 1

All prescaler values

(except 0)

-t(CLK)/4 + 0.75

t(CLK)/4 + 1.5

thr(OUT)

thf(OUT)

Data output hold

time DHQC = 0

Voltage range 1

Voltage range 4

Data output hold

time DHQC = 1

Voltage range 1

All prescaler values

(except 0)

t(CLK)/4 - 0.5

1. Evaluated by characterization. Not tested in production.

2. Measured values in this table apply to Octo- and Quad-SPI data modes.

3. Delay block bypassed.

4. Activating DHQC is mandatory to reach this frequency.

Table 140. OCTOSPI characteristics in DTR mode (no DQS)(1)(2)(3) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 141. OCTOSPI characteristics in DTR mode (with DQS)/HyperBus(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

f(CLK)

OCTOSPI clock

frequency

1.71 V ≤ VDD ≤ 3.6 V

Voltage range 1

CL = 15 pF

93(3)(4)

MHz

2.7 V ≤ VDD ≤ 3.6 V

Voltage range1

CL = 15 pF

100(3)(4)

1.71 V ≤ VDD ≤ 3.6 V

Voltage range 4

CL = 15 pF

24(4)

tw(CLKH) OCTOSPI clock

high and low time

(even division)

PRESCALER[7:0] = n

(n = 0, 1, 3, 5,..255)

t(CLK)/2 - 0.5

t(CLK)/2 + 0.5

tw(CLKL)

t(CLK)/2 - 0.5

t(CLK)/2 + 0.5

STM32U5A5QJ Datasheet(PDF) 330 Page - STMicroelectronics

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