HD74LS126A Datasheet, PDF (2/4 Pages) Renesas Technology Corp – Quadruple Bus Buffer Gates (with three-state outputs)

HD74LS126A
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
Vcc
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
Symbol
min.
typ.* max.
Input voltage
V_IH
2.0
—
—
V_IL
—
—
0.8
Output voltage
V_OH
2.4
—
—
—
—
0.5
V_OL
—
—
0.4
Off-state output
current
I_OZH
—
—
20
I_OZL
—
—
–20
I_IH
—
—
20
Input current
I_IL
—
—
–0.4
—
—
–0.4
I_I
—
—
0.1
Short-circuit output
current
I_OS
–40
—
–225
Supply current
I_CC**
—
12
22
Input clamp voltage
V_IK
—
—
–1.5
Notes: * V_CC = 5 V, Ta = 25°C
** I_CC is measured with the A and C input grounded.
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, I_OH = –2.6 mA
I_OL = 24 mA
I_OL = 12 mA
V_CC = 4.75 V, V_IH = 2 V,
V_IL = 0.8 V
V_O = 2.4 V
V_O = 0.4 V
V_CC = 5.25 V, V_IH = 2 V,
V_IL = 0.8 V
V_CC = 5.25 V, V_I = 2.7 V
A input
C input
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
ns
Output enable time
t_PHL
—
t_ZH
—
8
16
18
25
C_L = 45 pF, R_L = 667 Ω
ns
t_ZL
—
21
35
Output disable time
t_HZ
t_LZ
—
—
—
—
25
25
ns
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.3.00, Jul.13.2005, page 2 of 3