Datasheet

SN74FB2033A
8-BIT TTL/BTL REGISTERED TRANSCEIVER
SCBS174M – NOVEMBER 1991 – REVISED SEPTEMBER 2001
5–45
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IK
V
CC
= 4.75 V, I
I
= –18 mA –1.2 V
V
CC
= 4.75 V to 5.25 V, I
OH
= –10 µA V
CC
–1.1
V
OH
AO port
I
OH
= –3 mA 2.5 2.85 3.4
V
V
CC
= 4.75 V
I
OH
= –32 mA 2
I
OL
= 20 mA 0.33 0.5
AO port V
CC
= 4.75 V
I
OL
= 55 mA 0.8
V
OL
I
OL
= 100 mA 0.75 1.1
V
B port
V
CC
= 4.75 V
I
OL
= 4 mA 0.5
I
I
Except B port V
CC
= 0, V
I
= 5.25 V 100 µA
Except B port V
CC
= 5.25 V, V
I
= 2.7 V 50
µ
I
IH
B port
‡
V
CC
= 0 to 5.25 V, V
I
= 2.1 V 100
µA
Except B port V
I
= 0.5 V –50
µ
I
IL
B port
‡
V
CC
= 5.25 V
V
I
= 0.75 V –100
µA
I
OH
B port V
CC
= 0 to 5.25 V, V
O
= 2.1 V 100 µA
I
OZPU
V
CC
= 0 to 2.1 V, V
O
= 0.5 V to 2.7 V 50 µA
I
OZPD
V
CC
= 2.1 V to 0, V
O
= 0.5 V to 2.7 V –50 µA
I
OZH
AO port V
CC
= 5.25 V, V
O
= 2.7 V 50 µA
I
OZL
AO port V
CC
= 5.25 V, V
O
= 0.5 V –50 µA
I
OS
§
AO port V
CC
= 5.25 V, V
O
= 0 –40 –80 –150 mA
I
CC
All outputs on V
CC
= 5.25 V, I
O
= 0 45 70 mA
C
i
AI port and control inputs V
I
= 0.5 V or 2.5 V 5 pF
C
o
AO port V
O
= 0.5 V or 2.5 V 5 pF
B port
V
CC
= 0 to 4.75 V 6
C
io
B port
per IEEE Std 1194.1-1991
V
CC
= 4.75 V to 5.25 V 6
pF
†
All typical values are at V
CC
= 5 V.
‡
For I/O ports, the parameters I
IH
and I
IL
include the off-state output current.
§
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
live-insertion characteristics over recommended operating free-air temperature range (see Note 3)
PARAMETER TEST CONDITIONS MIN MAX UNIT
V
CC
= 0 to 4.5 V 10
µ
I
CC
(BIAS V
CC
)
V
CC
= 4.5 V to 5.5 V
V
B
= 0 to 2 V, V
l
(BIAS V
CC
) = 4.5 V to 5.5 V
10
µA
V
O
B port V
CC
= 0, V
I
(BIAS V
CC
) = 4.5 V to 5.5 V 1.62 2.1 V
V
CC
= 0, V
B
= 1 V, V
l
(BIAS V
CC
) = 4.5 V to 5.5 V –1
I
O
B port
V
CC
= 0 to 5.5 V, OEB = 0 to 0.8 V 100
µA
V
CC
= 0 to 2.2 V, OEB = 0 to 5 V 100
NOTE 3: The power-up sequence is GND, BIAS V
CC
, V
CC
.