STM32U595AI datasheet(325/377 Pages) STMICROELECTRONICS

325 / 377 page

DS13633 Rev 1

325/377

STM32U59xxx

Electrical characteristics

343

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

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 139. 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

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