HT32F52243 datasheet(37/44 Pages) HOLTEK

37 / 44 page

Rev. 1.00

�� of 44

��to�e� �� 01�

��-Bit A�m® Co�tex®-M0+ MCU

HT��F5��4�/HT��F5��5�

tSU(STA)

tH(STA)

tFALL

tSCL(L)

tRISE

tSCL(H)

tH(SDA)

tSU(SDA)

tSU(ST�)

SCL

SDA

Figure 9. I2C Timing Diagrams

SPI Characteristics

Table 21. SPI Characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

SPI Master mode

fSCK

(1/tSCK)

SPI maste� output SCK �lo�k

f�equen�y

Maste� mode

SPI pe�iphe�al �lo�k

f�equen�y fPCLK

—

fPCLK/�

MHz

tSCK(H)

tSCK(L)

SCK �lo�k high and low time

—

tSCK/� - �

—

tSCK/� + 1

tV(M�)

Data output valid time

—

tH(M�)

Data output hold time

—

�

—

tSU(MI)

Data input setup time

—

tH(MI)

Data input hold time

—

SPI Slave mode

fSCK

(1/tSCK)

SPI slave input SCK �lo�k

f�equen�y

Slave mode

SPI pe�iphe�al �lo�k

f�equen�y fPCLK

—

fPCLK/�

MHz

DutySCK SPI slave input SCK �lo�k

duty �y�le

—

�0

—

�0

tSU(SEL)

SEL ena�le setup time

—

� × tPCLK

—

tH(SEL)

SEL ena�le hold time

—

� × tPCLK

—

tA(S�)

Data output a��ess time

—

� × tPCLK

tDIS(S�)

Data output disa�le time

—

tV(S�)

Data output valid time

—

�5

tH(S�)

Data output hold time

—

tSU(SI)

Data input setup time

—

tH(SI)

Data input hold time

—

Note: tSCK= 1/fSCK; tPCLK= 1/fPCLK. SPI output (input) �lo�k f�equen�y fSCK; SPI pe�iphe�al �lo�k f�equen�y

fPCLK.

HT32F52243 Datasheet(PDF) 37 Page - Holtek Semiconductor Inc

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