STM32WB55CC datasheet(147/165 Pages) STMICROELECTRONICS

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DS11929 Rev 3

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STM32WB55xx

Electrical characteristics

152

Quad-SPI characteristics

Unless otherwise specified, the parameters given in Table 91 and Table 92 for Quad-SPI

are derived from tests performed under the ambient temperature, fAHB frequency and VDD

supply voltage conditions summarized in Table 22: General operating conditions, with the

following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 11

•

Capacitive load C = 15 or 20 pF

•

Measurement points are set at CMOS levels: 0.5 ₓ VDD

Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate

function characteristics.

Table 91. Quad-SPI characteristics in SDR mode(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

FCK

1/t(CK)

Quad-SPI clock

frequency

1.65 < VDD< 3.6 V, CLOAD = 20 pF

Voltage Range 1

MHz

1.65 < VDD< 3.6 V, CLOAD = 15 pF

Voltage Range 1

2.7 < VDD< 3.6 V, CLOAD = 15 pF

Voltage Range 1

1.65 < VDD < 3.6 V CLOAD = 20 pF

Voltage Range 2

tw(CKH)

Quad-SPI clock

high and low time

fAHBCLK= 48 MHz, presc=1

t(CK)/2 - 0.5

t(CK)/2 + 1

tw(CKL)

t(CK)/2 - 1

t(CK)/2 + 0.5

ts(IN)

Data input setup time

Voltage Range 1

Voltage Range 2

3.5

th(IN)

Data input hold time

Voltage Range 1

4.5

Voltage Range 2

tv(OUT)

Data output valid time

Voltage Range 1

1.5

Voltage Range 2

1.5

th(OUT)

Data output hold time

Voltage Range 1

Voltage Range 2

1. Guaranteed by characterization results.

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