SM9403BM Ver la hoja de datos (PDF) - Nippon Precision Circuits

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componentes Descripción

Fabricante

SM9403BM

DVDRAM Servo-amplifier LSI

Nippon Precision Circuits  

SM9403BM

Serial Interface Characteristics (SCLK, SDATA, SENB)

VCC = 5V ± 5%, GND = 0V, Ta = 0 to 70°C

Parameter

Rating

Symbol

Condition

Unit

min

typ

max

SCLK pulse cycle

SCLK HIGH-level pulsewidth

S C L K L OW -level pulsewidth

SENB setup time

SENB hold time

S DATA setup time

S DATA hold time

ACK setup time1

ACK hold time1

SENB interval

tc y S C K

tw h S C K

tw l S C K

ts S E N

th S E N

ts S DA

th S DA

tsAC K

th AC K

ti n S E N

100

–

40

–

40

–

20

–

40

–

15

–

15

–

0

–

–

–

100

–

–

ns

–

ns

–

ns

–

ns

–

ns

–

ns

–

ns

20

ns

50

ns

–

ns

1. ACK is the acknowledge output (n-channel open-drain). LOW -level output when the data received is valid.

S D ATA load capacitance is 15pF.

SENB

SCLOCK

SDATA

Controller

SDATA

Port

tsSEN twhSCK twlCLK

tcySCK

tsSDA thSDA

bit 0

bit 1

LSB

tinSEN

bit 15

MSB

thSEN

tsACK

thACK

ACK

High Impedance

NIPPON PRECISION CIRCUITS—10

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