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74VHC126MSTN/a13368avaiQUAD BUS BUFFERS (3-STATE)
74VHC126TTRSTN/a50000avaiQUAD BUS BUFFERS (3-STATE)
74VHC126TTRST ?N/a1000avaiQUAD BUS BUFFERS (3-STATE)
74VHC126TTRSTMN/a2283avaiQUAD BUS BUFFERS (3-STATE)


74VHC126TTR ,QUAD BUS BUFFERS (3-STATE)ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value UnitV Supply Voltage-0.5 to +7.0 VCCV DC Input ..
74VHC126TTR ,QUAD BUS BUFFERS (3-STATE)74VHC126QUAD BUS BUFFERS (3-STATE) ■ HIGH SPEED: t = 3.8ns (TYP.) at V = 5VPD CC■ LOW POWER DISSIP ..
74VHC126TTR ,QUAD BUS BUFFERS (3-STATE)74VHC126QUAD BUS BUFFERS (3-STATE) ■ HIGH SPEED: t = 3.8ns (TYP.) at V = 5VPD CC■ LOW POWER DISSIP ..
74VHC132 ,Quad 2-Input NAND Schmitt Trigger74VHC132Quad2-InputNANDSchmittTriggerSeptember199674VHC132Quad2-InputNANDSchmittTriggerGeneralDescr ..
74VHC132M ,QUAD 2-INPUT SCHMITT NAND GATE74VHC132 Quad 2-Input NAND Schmitt TriggerSeptember 1995Revised February 200574VHC132Quad 2-Input N ..
74VHC132MTC ,Quad 2-Input NAND Schmitt TriggerFeaturesThe VHC132 is an advanced high speed CMOS 2-input

74VHC126M-74VHC126TTR
QUAD BUS BUFFERS (3-STATE)
1/9July 2001 HIGH SPEED: tPD = 3.8ns (TYP.) at VCC = 5V LOW POWER DISSIPATION:CC = 4 μA (MAX.) at TA =25°C HIGH NOISE IMMUNITY:
VNIH = VNIL = 28% VCC (MIN.) POWER DOWN PROTECTION ON INPUTS SYMMETRICAL OUTPUT IMPEDANCE:OH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 5.5V PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 126 IMPROVED LATCH-UP IMMUNITY LOW NOISE: VOLP = 0.8V (MAX.)
DESCRIPTION

The 74VHC126 is an advanced high-speed
CMOS QUAD BUS BUFFERs fabricated with
sub-micron silicon gate and double-layer metal
wiring C2 MOS technology.
The device requires the 3-STATE control input G
to be set low to place the output go in to the high
impedance state.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
74VHC126

QUAD BUS BUFFERS (3-STATE)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
74VHC126
2/9
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE

X :Don‘t Care
Z : High Impedance
ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
RECOMMENDED OPERATING CONDITIONS

1) VIN from 30% to 70% of VCC
74VHC126
3/9
DC SPECIFICATIONS
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)

(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
74VHC126
4/9
CAPACITIVE CHARACTERISTICS

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per circuit)
DYNAMIC SWITCHING CHARACTERISTICS

1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 5.0V. Inputs under test switching: 5.0V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
74VHC126
5/9
TEST CIRCUIT

CL =15/50pF or equivalent (includes jig and probe capacitance)
RL = R1 = 1KΩ or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
74VHC126
6/9
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
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