HT45F75 datasheet(117/190 Pages) HOLTEK

117 / 190 page

Rev. 1.10

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HT45F75

Body Fat Scale Flash MCU

HT45F75

Body Fat Scale Flash MCU

SC K (C KPO LB =1 , C KEG =0 )

SI ME N, C SE N= 1

SI ME N= 1, C SEN =0 ( Ex te rn al P ul l- Hi gh )

SC K (C KPO LB =0 , CK EG =0 )

SC K (C KPO LB =1 , CK EG =1 )

SC K (C KPO LB =0 , CK EG =1 )

SD O (C KEG =0 )

SD O (C KEG =1 )

SC S

SD I D at a C apt ur e

D7 /D 0D 6/ D1

D5 /D 2D 4/ D3

D3 /D 4D 2/ D5

D1 /D 6D 0/ D7

D7 /D 0D 6/ D1

D5 /D 2D 4/ D3

D3 /D 4D 2/ D5

D1 /D 6D 0/ D7

Wr it e to S IM D

SPI Master Mode Timing

SC K (C KPO LB =1 )

SC K (C KPO LB =0 )

SD O

SC S

SD I Da ta C apt ur e

D7 /D 0D 6/ D1

D5 /D 2D 4/ D3

D3 /D 4D 2/ D5

D1 /D 6D 0/ D7

Wr it e to S IM D

(S DO d oe s not c hange u nt il f ir st S CK edge)

SPI Slave Mode Timing — CKEG=0

SC K (C KPO LB =1 )

SC K (C KPO LB =0 )

SD O

SC S

SD I D at a C apt ur e

D7 /D 0D 6/ D1

D5 /D 2D 4/ D3

D3 /D 4D 2/ D5

D1 /D 6D 0/ D7

Wr it e to S IM D

(S DO c h anges a s so on a s wr it i ng o ccu rs ; SD O is fl oa ti ng i f SC S= 1)

No te :F or S PI s la ve m ode, i f SI M EN =1 a nd C SE N= 0, S PI i s al wa ys e n abl ed

and ig nor es t he S CS l ev el .

SPI Slave Mode Timing — CKEG=1

HT45F75 Datasheet(PDF) 117 Page - Holtek Semiconductor Inc

HT45F75 Datasheet(HTML) 117 Page - Holtek Semiconductor Inc

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