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 M54HC257
RAD-HARD QUAD 2 CHANNEL MULTIPLEXER (3-STATE)
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HIGH SPEED: tPD = 11 ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 4A(MAX.) at TA = 25C HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 54 SERIES 257 SPACE GRADE-1: ESA SCC QUALIFIED 50 krad QUALIFIED, 100 krad AVAILABLE ON REQUEST NO SEL UNDER HIGH LET HEAVY IONS IRRADIATION DEVICE FULLY COMPLIANT WITH SCC-9408-047
DILC-16
FPC-16
ORDER CODES
PACKAGE DILC FPC FM M54HC257D M54HC257K EM M54HC257D1 M54HC257K1
DESCRIPTION The M54HC257 is an high speed CMOS QUAD 2 CHANNEL MULTIPLEXER (3-STATE) fabricated with silicon gate C2MOS technology.
This IC is composed of an independent 2-channel multiplexer with common SELECT and ENABLE (OE) input. The M74HC257 is a non-inverting multiplexer. When the ENABLE input is held "High", outputs of the IC become in a High-Impedance state. If SELECT input is held low, "A" data is selected, when SELECT is high, "B" data is chosen. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
PIN CONNECTION
April 2004
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M54HC257
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N 1 2, 5, 14, 11 3, 6, 13, 10 4, 7, 12, 9 15 8 16 SYMBOL SELECT 1A to 4A 1B to 4B 1Y to 4Y OE GND VCC NAME AND FUNCTION Common Data Select Input Data Input From Source A Data Input From Source B 3 State Multiplexer Outputs 3 State Output Enable Inputs (Active Low) Ground (0V) Positive Supply Voltage
TRUTH TABLE
INPUTS OE H L L L L
X : Don't Care Z : High Impedance
OUTPUT A X L H X X B X X X L H Y Z L H L H
SELECT X L L H H
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M54HC257
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK IO PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 20 20 35 70 420 -65 to +150 265 Unit V V V mA mA mA mA mW C C
ICC or IGND DC VCC or Ground Current
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied
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M54HC257
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top tr, tf Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time VCC = 2.0V VCC = 4.5V VCC = 6.0V Parameter Value 2 to 6 0 to VCC 0 to VCC -55 to 125 0 to 1000 0 to 500 0 to 400 Unit V V V C ns ns ns
DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 VOL Low Level Output Voltage 2.0 4.5 6.0 4.5 6.0 II IOZ Input Leakage Current High Impedance Output Leakage Current Quiescent Supply Current 6.0 6.0 6.0 IO=-20 A IO=-20 A IO=-20 A IO=-6.0 mA IO=-7.8 mA IO=20 A IO=20 A IO=20 A IO=6.0 mA IO=7.8 mA VI = VCC or GND VI = VIH or VIL VO = VCC or GND VI = VCC or GND TA = 25C Min. 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 4.18 5.68 2.0 4.5 6.0 4.31 5.8 0.0 0.0 0.0 0.17 0.18 0.1 0.1 0.1 0.26 0.26 0.1 0.5 4 1.9 4.4 5.9 4.13 5.63 0.1 0.1 0.1 0.33 0.33 1 5 40 Typ. Max. Value -40 to 85C Min. 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 4.10 5.60 0.1 0.1 0.1 0.40 0.40 1 10 80 A A A V V Max. -55 to 125C Min. 1.5 3.15 4.2 0.5 1.35 1.8 Max. V Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
VIL
V
VOH
ICC
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M54HC257
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition Symbol Parameter VCC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 TA = 25C Min. 50 Typ. 25 7 6 45 13 11 62 18 15 45 13 11 62 18 15 40 12 10 57 17 14 28 14 13 Max. 60 12 10 100 20 17 140 28 24 100 20 17 140 28 24 110 22 19 150 30 26 140 28 24 Value -40 to 85C Min. Max. 75 15 13 125 25 21 175 35 30 125 25 21 175 35 30 140 28 24 190 38 32 175 35 30 -55 to 125C Min. Max. 90 19 15 150 30 26 210 42 36 150 30 26 210 42 36 165 33 28 225 45 38 210 42 36 ns Unit
tTLH tTHL Output Transition Time tPLH tPHL Propagation Delay Time (A, B - Y)
50
ns
150
ns
tPLH tPHL Propagation Delay Time (SELECT - Y)
50
ns
150
ns
tPZL tPZH High Impedance Output Enable Time
50
RL = 1 K
ns
150
RL = 1 K
ns
tPLZ tPHZ High Impedance Output Disable Time
50
RL = 1 K
ns
CAPACITIVE CHARACTERISTICS
Test Condition Symbol Parameter VCC (V) TA = 25C Min. Typ. 5 10 47 Max. 10 Value -40 to 85C Min. Max. 10 -55 to 125C Min. Max. 10 pF pF pF Unit
CIN COUT CPD
Input Capacitance Output Capacitance Power Dissipation Capacitance (note 1)
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)
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M54HC257
TEST CIRCUIT
TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ
CL = 50pF/150pF or equivalent (includes jig and probe capacitance) R1 = 1K or equivalent RT = ZOUT of pulse generator (typically 50)
SWITCH Open VCC GND
WAVEFORM 1: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
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M54HC257
WAVEFORM 2:OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
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M54HC257
DILC-16 MECHANICAL DATA
mm. DIM. MIN. A a1 a2 B b b1 D e e1 e2 e3 F I K L 10.90 1.14 17.65 7.62 7.29 2.1 3.00 0.63 1.82 0.40 0.20 20.06 7.36 0.45 0.254 20.32 7.62 2.54 17.78 7.87 7.49 17.90 8.12 7.70 3.83 12.1 1.5 0.429 0.045 0.695 0.300 0.287 0.88 TYP MAX. 2.71 3.70 1.14 2.39 0.50 0.30 20.58 7.87 MIN. 0.083 0.118 0.025 0.072 0.016 0.008 0.790 0.290 0.018 0.010 0.800 0.300 0.100 0.700 0.310 0.295 0.705 0.320 0.303 0.151 0.476 0.059 0.035 TYP. MAX. 0.107 0.146 0.045 0.094 0.020 0.012 0.810 0.310 inch
0056437F
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M54HC257
FPC-16 MECHANICAL DATA
mm. DIM. MIN. A B C D E F G H L M N 0.38 6.0 18.75 0.33 0.38 4.31 22.0 0.43 6.75 9.76 1.49 0.102 8.76 0.127 8.89 1.27 0.43 0.48 0.015 0.237 0.738 0.013 0.015 0.170 0.867 0.017 TYP 6.91 9.94 MAX. 7.06 10.14 1.95 0.152 9.01 MIN. 0.266 0.384 0.059 0.004 0.345 0.005 0.350 0.050 0.017 0.019 TYP. 0.272 0.392 MAX. 0.278 0.399 0.077 0.006 0.355 inch
F
G
D
H
16
9
A
N
L
1
8
H
E
M
C
B
0016030E
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M54HC257
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners (c) 2004 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com
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