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M74HC258M1R
QUAD 2 CHANNLE MULTIPLEXER (3-STATE INVERTING)
1/11August 2001 HIGH SPEED :
tPD = 11 ns (TYP.) at VCC = 6V LOW POWER DISSIPATION:
ICC =4μA(MAX.) at TA=25°C HIGH NOISE IMMUNITY:NIH = VNIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE:OH | = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 258
DESCRIPTIONThe M74HC258 is an high speed CMOS QUAD 2
CHANNEL MULTIPLEXER (3-STATE) fabricated
with silicon gate C2 MOS technology.
This IC is composed of four independent
2-channel multiplexer with common SELECT and
ENABLE INPUT.
The M74HC258 is an inverting multiplexer.
When the ENABLE INPUT (OE) is held "High",
outputs of the IC become High-Impedance state. If
SELECT INPUT is held "LOW", "A" data is
selected, when SELECT INPUT is High "H", "B"
data is chosen.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC258QUAD 2 CHANNEL MULTIPLEXER (3-STATE, INVERTING)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
M74HC2582/11
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE X : Don’t Care
Z : High Impedance
LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays
M74HC2583/11
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
M74HC2584/11
DC SPECIFICATIONS
M74HC2585/11
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/4 (per
Channel)
M74HC2586/11
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)
