Ω
SDFS099 − M AY 1995
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC −0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (except I/O ports) (see Note 1) −1.2 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input current range −30 mA to 5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state −0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state −0.5 V to VCC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state 30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg −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 input voltage ratings may be exceeded provided the input current ratings are observed.
recommended operating conditions
MIN NOM MAX UNIT
VCC Supply voltage 4.5 5 5.5 V
VIH High-level input voltage 2 V
VIL Low-level input voltage 0.8 V
IIK Input clamp current −18 mA
IOH High-level output current −3 mA
IOL Low-level output current 12 mA
TAOperating free-air temperature 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP‡MAX UNIT
VIK VCC = 4.5 V, II = −18 mA −1.2 V
IOH = − 1 mA 2.5 3.4
V
Any output VCC = 4.5 V IOH = − 3 mA 2.4 3.3 V
VCC = 4.75 V, IOH = −1 mA to − 3 mA 2.7
IOL = 1 mA 0.2 0.5
VOL Any output VCC = 4.5 V IOL = 12 mA 0.5 0.75 V
A and B
VI = 5.5 V 1
IIDIR and OE VCC = 5.5 V VI = 7 V 0.1 mA
A and B
70
IIH
DIR and OE VCC = 5.5 V, VI = 2.7 V 20 µA
A and B
−0.5
IIL
DIR and OE VCC = 5.5 V, VI = 0.5 V − 0.5 mA
IOS¶A and B VCC = 5.5 V, VO = 0 −50 −120 mA
Outputs high 62 90
I
V
= 5.5 V Outputs low 73 105 mA
Outputs disabled 72 100
‡All typical values are at VCC = 5 V, TA = 25°C.
§For I/O ports, the parameters IIH and IIL 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.