HD74LS125A Datasheet, PDF (2/5 Pages) Hitachi Semiconductor – Quadriple Bus Buffer Gates(with three-state outputs)

HD74LS125A
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
V_CC
7
V
Input voltage
V_IN
7
V
Power dissipation
Storage temperature
P_T
Tstg
400
mW
–65 to +150
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item
Supply voltage
High level output current
Low level output current
Operating temperature
Symbol
V_CC
I_OH
I_OL
Topr
Min
4.75
—
—
–20
Typ
5.00
—
—
25
Max
5.25
–2.6
24
75
Unit
V
mA
mA
°C
Electrical Characteristics
Item
Input voltage
Output voltage
Symbol
V_IH
V_IL
V_OH
V_OL
I_OZ
I_IH
Input current
I_IL
I_I
Short-circuit output
current
I_OS
Supply current
I_CC
Input clamp voltage
V_IK
Note: * V_CC = 5 V, Ta = 25°C
min.
2.0
—
2.4
—
—
—
—
—
—
—
–40
—
—
typ.*
—
—
—
—
—
—
—
—
—
—
—
11
—
max.
—
0.8
—
0.5
0.4
20
–20
20
–0.4
0.1
–225
20
–1.5
Unit
V
V
V
V
µA
µA
mA
mA
mA
mA
V
(Ta = –20 to +75 °C)
Condition
V_CC = 4.75 V, V_IH = 2 V, V_IL = 0.8 V,
I_OH = –2.6 mA
I_OL = 24 mA V_CC = 4.75 V, V_IH = 2 V,
I_OL = 12 mA ^VIL ^{= 0.8 V}
V_O = 2.4 V
V_CC = 5.25 V, V_IH = 2 V,
V_O = 0.4 V
V_IL = 0.8 V
V_CC = 5.25 V, V_I = 2.7 V
V_CC = 5.25 V, V_I = 0.4 V
V_CC = 5.25 V, V_I = 7 V
V_CC = 5.25 V
V_CC = 5.25 V
V_CC = 4.75 V, I_IN = –18 mA
Switching Characteristics
(V_CC = 5 V, Ta = 25°C)
Item
Symbol
min.
typ.
max.
Unit
Condition
Propagation delay time
t_PLH
—
9
15
Output enable time
t_PHL
—
t_ZH
—
7
12
18
20
C_L = 45 pF, R_L = 667 Ω
ns
t_ZL
—
15
25
Output disable time
t_HZ
—
—
20
t_LZ
—
—
20
C_L = 5 pF, R_L = 667 Ω
Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-
0100)".
Rev.2.00, Feb.18.2005, page 2 of 4