Datasheet

CY54FCT245T, CY74FCT245T
8-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCCS018B – MAY 1994 – REVISED NOVEMBER 2001
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range to ground potential –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC input voltage range –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC output voltage range –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC output current (maximum sink current/pin) 120 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 1): P package 69°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Q package 68°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SO package 58°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient temperature range with power applied, T
A
–65°C to 135°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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)
CY54FCT245T
CY74FCT245T
CY74FCT245AT
CY74FCT245CT
CY74FCT245DT
UNIT
MIN NOM MAX MIN NOM MAX
V
CC
Supply voltage 4.5 5 5.5 4.75 5 5.25 V
V
IH
High-level input voltage 2 2 V
V
IL
Low-level input voltage 0.8 0.8 V
I
OH
High-level output current –12 –32 mA
I
OL
Low-level output current 48 64 mA
T
A
Operating free-air temperature –55 125 –40 85 °C
NOTE 2: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation.