ACS8522AT View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

ACS8522AT

Synchronous Equipment Timing Source for Stratum 3/4E/4 and SMC Systems

Semtech Corporation 

ADVANCED COMMS & SENSING

FINAL

Figure 13 Write Access Timing for SERIAL Interface

ACS8522A SETS LITE

DATASHEET

CSB

SCLK

SDI

tsu2

tpw2

th2

tsu1

th1 tpw1

_

R/W A0 A1 A2 A3 A4 A5 A6 D0 D1 D2 D3 D4 D5 D6 D7

SDO

Output not driven, pulled low by internal resistor

F8525D_014WriteAccSerial_01

Table 19 Write Access Timing for SERIAL Interface (For use with Figure 13)

Symbol

Parameter

MIN

TYP

tsu1

Setup SDI valid to SCLKrising edge

4 ns

-

tsu2

Setup CSBfalling edge to SCLKrising edge

14 ns

-

tpw1

SCLK Low time

22 ns

-

tpw2

SCLK High time

22 ns

-

th1

Hold SDI valid after SCLKrising edge

6 ns

-

th2

Hold CSB Low after SCLKrising edge

5 ns

-

tp

Time between consecutive accesses (CSBrising edge to CSBfalling edge)

10 ns

-

MAX

-

-

-

-

-

-

-

Revision 1.00/September 2007 © Semtech Corp.

Page 40

www.semtech.com

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