Datasheet

SN74ABT18502
SCAN TEST DEVICE
WITH 18-BIT REGISTERED BUS TRANSCEIVER
SCBS753 – FEBRUARY 2002
21
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
=
MASKX.X
1A8-O 1A7-O 1A6-O 1A5-O 1A4-O 1A3-O 1A2-O 1A1-O1A9-O
1B7-I 1B6-I 1B5-I 1B4-I 1B3-I 1B2-I 1B1-I1B8-I
MSB
2B7-I 2B6-I 2B5-I 2B4-I 2B3-I 2B2-I 2B1-I2B8-I2B9-I
2A8-O 2A7-O 2A6-O 2A5-O 2A4-O 2A3-O 2A2-O 2A1-O2A9-O
=
LSB
1B9-I
Figure 11. 18-Bit PSA/COUNT Configuration (1OEAB = 2OEAB = 1, 1OEBA = 2OEBA = 0)