AS3953B datasheet(39/65 Pages) AMSOSRAM

Part #	AS3953B

Description	14443 High Speed Passive Tag Interface

PDF	65 Pages

Scroll/Zoom	100%

Manufacturer	AMSOSRAM [ams-OSRAM AG]

Direct Link	https://ams-osram.com/

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39 / 65 page

Page 38

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[v1-04] 2016-Jan-07

AS3953B − Application Information

SPI Timing

Figure 48:

Timing Parameters

Symbol

Parameter

Min

Typ

Max

Units

Note

General Timing (VDD = VDD_IO = VDD_D = 3.3V, Temperature 25°C)

TSCLK

SCLK period

200

TSCLK=TSCLKL+TSCLKH, during

EEPROM read the SCLK period

has to be increased to 1μs (this

limitation is imposed by

EEPROM read access time)

TSCLKL

SCLK low

TSCLKH

SCLK high

TSSH

SPI reset (/SS high)

TNCSL

/SS falling to SCLK

rising

first SCLK pulse

TNCSH

SCLK falling to /SS

rising

last SCLK pulse

TDIS

Data in setup time

TDIH

Data in hold time

Read Timing (VDD = VDD_IO = VDD_D = 3.3V, Temperature 25°C, CLOAD ≤ 50pF)

TDOD

Data out delay

TDOHZ

Data out to high

impedance delay

AS3953B Datasheet(PDF) 39 Page - ams-OSRAM AG

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