XRT79L74 Datasheet, PDF (8/70 Pages) Exar Corporation – 4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

XRT79L74
REV. P1.0.0
PRELIMINARY
4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
PIN #
NAME
TYPE
TEST AND DIAGNOSTIC
AD5
TCK
I
AC5
TDI
I
AB5
TDO
O
AE5
TMS
I
AF5
TRST
I
AD4
TESTMODE
***
AC21
Anaio3
I/O
AC9
Anaio2
AC17
Anaio1
AC13
Anaio0
DESCRIPTION
Test Clock input, Boundary Scan Clock input:
NOTE: This input pin should be pulled "Low" for normal operation.
Test Data input, Boundary Scan Test Data Input:
NOTE: This input pin should be pulled "Low" for normal operation.
Test Data output:
Boundary Scan Test Data Output:
Test Mode Select, Boundary Scan Test Mode Select input pin:
NOTE: This input pin should be pulled "Low" for normal operation.
Test Mode Reset, Boundary Scan Mode Reset Input pin:
NOTE: This input pin should be pulled "Low" for normal operation.
Factory Test Mode Pin:
Tie this pin to Ground.
Analog Input/Output Test Pin:
These pins should be pulled "Low" for normal operation.
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