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XRT72L58 View Datasheet(PDF) - Exar Corporation

Part Name
Description
MFG CO.
'XRT72L58' PDF : 486 Pages View PDF
XRT72L58
EIGHT CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
áç
PRELIMINARY
AC ELECTRICAL CHARACTERISTICS (CONT.)
Test Conditions: TA = 25(C, VCC = 3.3V + 5% unless otherwise specified
SYMBOL
PARAMETER
MIN. TYP.
MAX.
t79 Rising edge of RD_DS to rising edge of RDY_DTCK 0
delay
t80 Rising edge of RDY_DTCK to tri-state of D[7:0]
0
Microprocessor Interface - Motorola Read & Write Operations (See Figure 24)
t78 A8 - A0 Setup Time to falling edge of ALE_AS
5
t81 D[7:0] Set-up time to falling edge of RD_DS
10
t82 Rising edge of RD_DS to rising edge of RDY_DTCK 0
delay
Reset Pulse Width - Both Motorola and Intel Operations (See Figure 27)
t90 Reset pulse width
200
UNITS
ns
ns
ns
ns
ns
ns
CONDITIONS
35
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