MNDP83950B-VQB Datasheet, PDF (6/14 Pages) National Semiconductor (TI) – REPEATER INTERFACE CONTROLLER

MNDP83950B-VQB REV 0B0
MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V
SYMBOL
T30a
PARAMETER
CD Active to
ANYXN Active
T31a
CD Inactive to
ANYXN Inactive
T32a
CD Active to COLN
Active
T33a
CD Inactive to
COLN Inactive
T39
T40
T30t
COLN Active to
Start of JAM
COLN Inactive to
End of JAM
Collision Active
to ANYXN Active
T31t
T34
Collision
Inactive to ANYXN
Inactive
ANYXN Active Time
T35
T38
T36
T37
T101
T102
T103
T104
ANYXN Inactive to
TX to all
inactive
ANTXN Active to
Start of Jam
ACTN Inactive to
TX Inactive
ANYXN Inactive to
TX "One Port
Left" Inactive
IRC Output High
Time
IRC Output Low
Time
IRC Output Cycle
Time
ACTNd Active to
PKEN Active
CONDITIONS
NOTES
PIN-
NAME
MIN
3 AUI &
PSEUDO
AUI
3, AUI &
6, 7 PSEUDO
AUI
3, 8 AUI &
PSEUDO
AUI
3 AUI &
PSEUDO
AUI
3
3, 9
3 TWISTED
PAIR
ONLY
3, 6 TWISTED
PAIR
ONLY
96
120
MAX
65
UNIT
nS
SUB-
GROUPS
9, 10,
11
400
nS 9, 10,
11
55
nS 9, 10,
11
215
nS 9, 10,
11
400
nS 9, 10,
11
800
nS 9, 10,
11
800
nS 9, 10,
11
400
nS 9, 10,
11
Bits 9, 10,
11
180
nS 9, 10,
11
400
nS 9, 10,
11
3
415
nS 9, 10,
11
3
120
180
nS 9, 10,
11
3,
45
55
nS 9, 10,
10
11
3,
45
55
nS 9, 10,
10
11
3,
90
110
nS 9, 10,
10
11
3,
555
10
nS 9, 10,
11
6