Datasheet

SN74FB2033K
8-BIT TTL/BTL REGISTERED TRANSCEIVER
SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001
5–56
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any B output in the disabled or power-off state, V
O
–0.5 V to 3.5 V. . . . . . . . . . . . . .
Voltage range applied to any output in the high state, V
O
: A port –0.5 V to V
CC
. . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
: Except B port –1.2 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B
port –1.2 V to 3.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
: Except B port –40 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B
port –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current applied to any single output in the low state, I
O
: A port 48 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B
port 200 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 1) 44°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 2)
MIN NOM MAX UNIT
V
CC
, BG V
CC
Supply voltage 4.75 5 5.25 V
BIAS V
CC
Supply voltage 4.5 5 5.5 V
B port 1.62 2.3
V
IH
High-level input voltage
Except B
port 2
V
B port 0.75 1.47
V
IL
Low-level input voltage
Except B port 0.8
V
I
OH
High-level output current AO port –3 mA
AO port 24
I
OL
Low-level output current
B port 100
mA
∆t/∆v Input transition rise or fall rate Except B port 10 ns/V
T
A
Operating free-air temperature 0 70 °C
NOTE 2: To ensure proper device operation, all unused inputs must be terminated as follows: A and control inputs to V
CC
(5 V) or GND, and
B inputs to GND only. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.