STR91XF datasheet(65/72 Pages) STMICROELECTRONICS

Part #	STR91XF

Description	ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA

PDF	72 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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65 / 72 page

STR91xF

Electrical characteristics

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6.13.5 SPI electrical characteristics

VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.

Table 25.

SPI electrical characteristics

Figure 22. SPI slave timing diagram with CPHA=0 1)

Notes: 1 Measurement points are done at CMOS levels: 0.3xVDD and 0.7xVDD.

Symbol

Parameter

Test Conditions

Value

Unit

Typ

Max

fSCLK

1/tc(SCLK)

SPI clock frequency

Master

MHz

Slave

tr(SCLK)

SPI clock rise and fall times

50pF load

0.1

V/ns

tf(SCLK)

tsu(SS)

SS setup time

Slave

tPCLK

th(SS)

SS hold time

Slave

tw(SCLKH)

tw(SCLKL)

SCLK high and low time

Master

Slave

tsu(MI)

tsu(SI)

Data input setup time

Master

Slave

th(MI)

th(SI)

Data input hold time

Master

Slave

ta(SO)

Data output access time

Slave

tdis(SO)

Data output disable time

Slave

tv(SO)

Data output valid time

Slave (after enable

edge)

th(SO)

Data output hold time

tv(MO)

Data output valid time

Master (before capture

edge)

0.25

th(MO)

Data output hold time

0.25

NSS INPUT

CPHA=0

MOSI INPUT

MISO OUTPUT

CPHA=0

tc(SCLK)

tw(SCLKH)

tw(SCLKL)

tr(SCLK)

tf(SCLK)

tv(SO)

ta(SO)

tsu(SI)

th(SI)

MSB OUT

MSB IN

BIT6 OUT

LSB IN

LSB OUT

CPOL=0

CPOL=1

tsu(NSS)

th(NSS)

tdis(SO)

th(SO)

BIT1 IN

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