HD74BC540A Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – Octal Buffers/Line Drivers With 3 State Outputs

HD74BC540A
Electrical Characteristics (Ta = –40 to +85°C)
Item
Input voltage
Output voltage
Input diode voltage
Input current
Short circuit output current*¹
Off state output current
Supply current
Symbol
V_IH
V_IL
V_OH
V_OL
V_IK
I_I
I_OS
I_OZH
I_OZL
I_CCL
V_CC(V)
4.5
4.5
4.5
4.5
4.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
Min
2.0
—
2.4
2.0
—
—
—
—
—
—
–100
—
—
—
Max
—
0.8
—
—
0.5
0.55
–1.2
–250
1.0
100
–225
50
–50
27.5
Unit
V
V
V
V
V
V
V
µA
µA
µA
mA
µA
µA
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
V_IN = 5.5 V
V_IN = 7.0 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
—
2.5
mA
V_IN = 0 or 5.5 V
All outputs is “Z”
I_CCT*²
5.5
—
1.5
mA
V_IN = 3.4V or 0.5V
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.
Switching Characteristics (C_L = 50 pF)
Item
Propagation delay time
Output enable time
Output disable time
Input capacitance
Output capacitance
Ta = 25°C
Symbol
V_CC = 5.0 V
Min
Max
t_PLH
3.0
6.0
t_PHL
3.0
6.0
t_ZH
3.0
9.0
t_ZL
3.0
9.0
t_HZ
3.0
8.0
t_LZ
3.0
8.0
C_IN
3.0(Typ)
C_O
15.0(Typ)
Ta = –40 to +85°C
V_CC = 5.0 V ±10
Min
Max
Unit
Test Conditions
3.0
7.0
ns See under figure
3.0
7.0
3.0
11.0
ns
3.0
11.0
3.0
10.0
ns
3.0
10.0
—
pF V_IN = V_CC or GND
—
pF V_O = V_CC or GND
Rev.2.00, Jul.16.2004, page 4 of 7