![](/IMAGES/ls12.gif)
M74HC242B1R ,QUAD BUS TRANSCEIVER (3-STATE)M74HC242QUAD BUS TRANSCEIVER (3 - STATE) ■ HIGH SPEED:t = 11ns (TYP.) at V = 6VPD CC■ LOW POWER DI ..
M74HC243M1R ,QUAD BUS TRANSCEIVER (3-STATE)M74HC243QUAD BUS TRANSCEIVER (3 - STATE) ■ HIGH SPEED: t = 11ns (TYP.) at V = 6VPD CC■ LOW POWER D ..
M74HC244 ,OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NOT INVERTED)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
M74HC244M1R ,OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NOT INVERTED)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
M74HC244RM13TR ,OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NOT INVERTED)M74HC244OCTAL BUS BUFFERWITH 3 STATE OUTPUTS (NON INVERTED) ■ HIGH SPEED: t = 10ns (TYP.) at V = 6 ..
M74HC245M1R ,OCTAL BUS TRANSCEIVER (3-STATE NON INVERTING)
MAX134CPL ,3 Digit DMM CircuitELECTRICAL CHARACTERISTICS
(V+ : 9V, TA = +25°C, Test Circuit unless otherwise indicated)
_PA ..
MAX134CPL+ ,3¾ Digit DMM CircuitELECTRICAL CHARACTERISTICS
(V+ : 9V, TA = +25°C, Test Circuit unless otherwise indicated)
_PA ..
MAX134CQH ,3 Digit DMM CircuitGeneral Description
The MAX133 and MAX134 are integrating A/D con-
verters for 3% digit multime ..
MAX134CQH+ ,3 Digit DMM CircuitGeneral Description
The MAX133 and MAX134 are integrating A/D con-
verters for 3% digit multime ..
MAX134EPL ,3 Digit DMM CircuitGeneral Description
The MAX133 and MAX134 are integrating A/D con-
verters for 3% digit multime ..
MAX134EPL+ ,3¾ Digit DMM CircuitELECTRICAL CHARACTERISTICS
(V+ : 9V, TA = +25°C, Test Circuit unless otherwise indicated)
_PA ..
M74HC242B1R
QUAD BUS TRANSCEIVER (3-STATE)
1/11August 2001 HIGH SPEED:
tPD = 11ns (TYP.) at VCC = 6V LOW POWER DISSIPATION:CC = 4μA(MAX.) at TA =25°C HIGH NOISE IMMUNITY:NIH = VNIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL WIDE OPERATING VOLTAGE RANGE:CC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 242
DESCRIPTIONThe M74HC242 is an high speed CMOS QUAD
BUS TRANSCEIVER (3-STATE) fabricated with
silicon gate C2 MOS technology.
The M74HC242 is a 3-state bidirectional inverting
buffer and is intended for two way asynchronous
communication between data buses. It has high
drive current outputs which enable high speed
operation when driving large bus capacitance.
The device has one active high enable (GBA), and
one active low enable (GAB).
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC242QUAD BUS TRANSCEIVER (3 - STATE)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
M74HC2422/11
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays
M74HC2423/11
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
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
M74HC2424/11
DC SPECIFICATIONS
M74HC2425/11
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
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
M74HC2426/11
TEST CIRCUIT CL = 50pF/150pF or equivalent (includes jig and probe capacitance)
R1 = 1KΩ or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)