74AHC126 Philips Semiconductors, 74AHC126 Datasheet - Page 2

• Manufacturer Part Number: 74AHC126
• Description: Quad buffer/line driver; 3-state
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
DESCRIPTION
The 74AHC/AHCT126 are
high-speed Si-gate CMOS devices
and are pin compatible with low
power Schottky TTL (LSTTL). They
are specified in compliance with
JEDEC standard No. 7A.
The 74AHC/AHCT126 are four
non-inverting buffer/line drivers with
3-state outputs. The 3-state outputs
(nY) are controlled by the output
enable input (nOE) A LOW at nOE
causes the outputs to assume a
HIGH-impedance OFF state.
The ‘126’ is identical to the ‘125’ but
has active HIGH enable inputs.
1999 Sep 29
ESD protection:
HBM EIA/JESD22-A114-A
exceeds 2000 V
MM EIA/JESD22-A115-A
exceeds 200 V
CDM EIA/JESD22-C101
exceeds 1000 V
Balanced propagation delays
All inputs have Schmitt-trigger
actions
Inputs accepts voltages higher than
V
For AHC only:
operates with CMOS input levels
For AHCT only:
operates with TTL input levels
Specified from
Quad buffer/line driver; 3-state
40 to +85 and +125 C.
CC
Notes
1. C
2. The condition is V
PINNING
FUNCTION TABLE
See note 1.
Note
1. H = HIGH voltage level;
QUICK REFERENCE DATA
GND = 0 V; T
t
C
C
C
1, 4, 10 and 13
2, 5, 9 and 12
3, 6, 8 and 11
7
14
SYMBOL
PHL
I
O
PD
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF state.
P
f
f
C
V
i
o
/t
D
CC
PD
= input frequency in MHz;
L
PLH
= output frequency in MHz;
(C
= output load capacitance in pF;
= C
PIN
is used to determine the dynamic power dissipation (P
L
= supply voltage in Volts.
nOE
PD
V
H
H
L
propagation delay
nA to nY
input capacitance
output capacitance
power dissipation
capacitance
amb
CC
PARAMETER
V
2
CC
= 25 C; t
2
f
2
o
1OE to 4OE
1A to 4A
1Y to 4Y
GND
V
) = sum of outputs;
INPUTS
I
CC
= GND to V
f
i
+
SYMBOL
r
= t
(C
f
L
C
V
V
C
f = 1 MHz;
notes 1 and 2
3.0 ns.
CC
I
L
L
CC
V
CONDITIONS
= V
= 15 pF;
= 50 pF;
CC
.
nA
= 5 V
74AHC126; 74AHCT126
H
X
L
2
CC
or GND
f
output enable inputs (active HIGH)
data inputs
data outputs
ground (0 V)
DC supply voltage
o
) where:
DESCRIPTION
3.3
3.0
4.0
10
AHC
Product specification
TYPICAL
OUTPUT
3.0
3.0
4.0
12
AHCT
D
nY
H
L
Z
in W).
ns
pF
pF
pF
UNIT