HD74BC640A Datasheet, PDF (4/9 Pages) Hitachi Semiconductor – Octal Bus Transceivers With 3 State Outputs

HD74BC640A
Electrical Characteristics (Ta = –40 to +85°C)
Item
Input voltage
Output voltage
Input diode voltage
Input current
Symbol
V_IH
V_IL
V_OH
V_OL
V_IK
I_I
Output short circuit current*¹ I_OS
Off state output current
I _OZH
I _OZL
Supply current
I _CCL
V_CC (V) Min
2.0
Max Unit
—
V
—
0.8 V
4.5
2.4 —
V
4.5
2.0 —
V
4.5
—
0.5 V
4.5
—
0.55 V
4.5
—
–1.2 V
5.5
—
–250 µA
5.5
—
100 µA
5.5
—
1.0 µA
5.5
—
100 µA
5.5
–100 –225 mA
5.5
—
–100 µA
5.5
—
–250 µA
5.5
—
29.5 mA
Test Conditions
I_OH = –3 mA
I_OH = –15 mA
I_OL = 48 mA
I_OL = 64 mA
I_IN = –18 mA
V_IN = 0 V
An or Bn, V_IN = 5.5 V
DiR or G, V_IN = 5.5 V
DiR or G, V_IN = 7 V
V_O = 0 V, V_IN = 0 or 5.5 V
V_O = 2.7 V
V_O = 0.5 V
V_IN = 0 or 5.5 V
All outputs is “L”
I _CCH
5.5
—
2.5
mA
V_IN = 0 or 5.5 V
All outputs is “H”
I _CCZ
5.5
—
4.5
mA
V_IN = 0 or 5.5 V
All outputs is “Z”
I
*²
CCT
5.5
—
1.5
mA
V_IN = 3.4 or 0.5 V
Notes: 1. Not more than one output should be shorted at a time and duration of the short circuit should not
exceed one second.
2. When input by the TTL level, it shows I_CC increase at per one input pin.
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