MC74VHC240_11 Datasheet, PDF (2/7 Pages) ON Semiconductor – Octal Bus Buffer/Line Driver Inverting with 3-State Outputs

A1 ²
A2 ⁴
A3 ⁶
DATA
INPUTS
A4 ⁸
B1 ¹¹
B2 ¹³
B3 ¹⁵
B4 ¹⁷
MC74VHC240
18 _YA1
16 _YA2
14 _YA3
12 _YA4
9 _YB1
INVERTING
OUTPUTS
7 _YB2
5 _YB3
3 _YB4
OUTPUT OEA ¹
ENABLES _OEB ¹⁹
Figure 1. LOGIC DIAGRAM
MAXIMUM RATINGS*
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _Symbol
Parameter
Value
Unit
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{VCC DC Supply Voltage}
– 0.5 to + 7.0
V
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{Vin DC Input Voltage}
– 0.5 to + 7.0
V
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{Vout DC Output Voltage}
– 0.5 to V_CC + 0.5 V
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{IIK Input Diode Current}
− 20
mA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{IOK Output Diode Current}
± 20
mA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{Iout DC Output Current, per Pin}
± 25
mA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{ICC DC Supply Current, VCC and GND Pins}
± 75
mA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{PD Power Dissipation in Still Air,}
SOIC Packages†
500
mW
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{TSSOP Packageâ€} 
450
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{Tstg StorageTemperature}
– 65 to + 150
_C
* Absolute maximum continuous ratings are those values beyond which damage to the device
may occur. Exposure to these conditions or conditions beyond those indicated may
adversely affect device reliability. Functional operation under absolute−maximum−rated
conditions is not implied.
†Derating — SOIC Packages: – 7 mW/_C from 65_ to 125_C
TSSOP Package: − 6.1 mW/_C from 65_ to 125_C
RECOMMENDED OPERATING CONDITIONS
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Symbol
Parameter
Min
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ V_CC DC Supply Voltage
2.0
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ V_in
DC Input Voltage
0
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ V_out DC Output Voltage
0
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ T_A
Operating Temperature, All Package Types
− 40
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ t_r, t_f
Input Rise and Fall Time
V_CC = 3.3V ±0.3V 0
V_CC =5.0V ±0.5V 0
Max Unit
5.5 V
5.5 V
V_CC
V
+ 85 _C
100 ns/V
20
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high−impedance cir-
cuit. For proper operation, V_in and
V_out should be constrained to the
range GND v (V_in or V_out) v V_CC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or V_CC).
Unused outputs must be left open.
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