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M74HC356
8 CHANNEL MULTIPLEXER/REGISTER WITH LATCHES (3 STATE)
s
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s
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s
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HIGH SPEED: tPD = 25 ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 4A(MAX.) at TA=25C HIGH NOISE IMMUNITY: VNIH = V NIL = 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 74 SERIES 356
DIP
SOP
TSSOP
ORDER CODES
PACKAGE DIP SOP TSSOP TUBE M74HC356B1R M74HC356M1R T&R M74HC356RM13TR M74HC356TTR
DESCRIPTION The M74HC356 is an high speed CMOS 8 CHANNEL MULTIPLEXER/REGISTER (3-STATE) fabricated with silicon gate C2MOS technology. This device contains an 8 channel digital multiplexer with an 8-input data register and a 3-bit address input register with 3-state outputs. The one of eight input data will be provided on the Y output pin (non-inverted output) and W output pin (inverted output) determined by the address data. The information at the data inputs ( D0 to D7) is stored in the 8-bit flip-flop at the positive going edge of clock input (CLOCK). The
information at the address inputs (S0 to S2) is stored in the 3-bit latch at the negative pulse on SC input. These outputs are disabled to be high-impedance when input G1 is held high, input G2 is held high or input G3 is held low. This device is suitable for interfacing with bus lines in a bus organized system. The M74HC356 is similar in function to the M74HC354, which has an 8-bit latch as the data register instead of an 8-bit flip-flop. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
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M74HC356
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 8, 7, 6, 5, 4, 3, 2, 1 9 11 14, 13, 12 15, 16 17 18 19 10 20 SYMBOL D0 to D7 CLOCK SC S0, S1, S2 G1, G2 G3 W Y GND VCC NAME AND FUNCTION Data Inputs Clock Input (LOW to HIGH, Edge-triggered) Latch Enable Input (Active LOW) Select Inputs Output Enable Inputs (Active LOW) Output Enable Input (Active HIGH) 3 - state Multiplexer Output (Active LOW) 3 - state Multiplexer Output (Active HIGH) Ground (0V) Positive Supply Voltage
TRUTH TABLE
INPUTS SELECT * CLOCK S2 X X X L L L L L L L L H H H H H H H H S1 X X X L L L L H H H H L L L L H H H H S0 X X X L L H H L L H H L L H H L L H H X X X G1 H X X L L L L L L L L L L L L L L L L G2 X H X L L L L L L L L L L L L L L L L G3 X X L H H H H H H H H H H H H H H H H Z Z Z D0 D0n D1 D1n D2 D2n D3 D3n D4 D4n D5 D5n D6 D6n D7 D7n Z Z Z D0 D0n D1 D1n D2 D2n D3 D3n D4 D4n D5 D5n D6 D6n D7 D7n OUTPUT ENABLES W Y OUTPUTS
X : Don't Care Z : High Impedance * : This Column Shows the Input Address Setup with SC low. D0n....D7n : The level of steady state inputs at input D1 through D7, respectively, before the most recent low to high transition of data control.
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M74HC356
TRUTH TABLE OF INTERNAL LATCH
INPUTS D L H X ST H H L Q L H Qn OUTPUTS Q H L Qn
X : Don't Care Qn : Data Stored at the trailing edge of the most recent ST pulse.
TRUTH TABLE OF INTERNAL LATCH (FLIP FLOP)
D L H X
X : Don't Care Qn : No Change.
CK
Q L H Qn
LOGIC DIAGRAM
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M74HC356
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 70 500(*) -65 to +150 300 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 (*) 500mW at 65 C; derate to 300mW by 10mW/C from 65C to 85C
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
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M74HC356
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 5 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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M74HC356
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 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 99 28 22 117 33 26 111 32 24 128 37 28 115 33 25 132 38 29 48 14 11 65 19 15 43 18 16 20 80 82 25 6 6 13 6 6 21 4 3 9 2 2 Max. 60 12 10 240 48 41 280 56 48 260 52 44 300 60 51 270 54 46 310 62 53 125 25 21 165 33 28 155 31 26 5 25 30 75 15 13 75 15 13 50 10 9 50 10 9 95 19 16 95 19 16 65 13 11 65 13 11 Value -40 to 85C Min. Max. 75 15 13 300 60 51 350 70 60 325 65 55 375 75 64 340 68 58 390 78 66 155 31 26 205 41 35 195 39 33 4.2 21 25 110 22 19 110 22 19 75 15 13 75 15 13 -55 to 125C Min. Max. 90 18 15 360 72 61 420 84 71 390 78 66 450 90 77 405 81 69 465 93 79 190 38 32 250 50 43 235 47 40 ns Unit
tTLH tTHL Output Transition Time tPLH tPHL Propagation Delay Time (CLOCK - Y, W)
50
ns
150
tPLH tPHL Propagation Delay Time (Sn - Y, W)
50
ns
150
tPLH tPHL Propagation Delay Time (SC - Y, W)
50
ns
150
tPZL tPZH High Impedance Output Enable Time
50
RL = 1K
ns
150
RL = 1K
tPLZ tPHZ High Impedance Outout Disable Time fMAX Maximum Clock Frequency Minimum Pulse Width (CLOCK) Minimum Pulse Width (SC) Minimum Set-up Time (Dn to CLOCK) Minimum Set-up Time (Sn to CLOCK)
50
RL = 1K 6.2 31 37
ns
50
MHz
tW(L) tW(H) tW(L)
50
ns
50
ns
tS
50
ns
tS
50
ns
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M74HC356
Test Condition Symbol Parameter VCC (V) 2.0 4.5 6.0 TA = 25C Min. 50 Typ. Max. 5 5 5
Value -40 to 85C Min. Max. 5 5 5 -55 to 125C Min. Max. 5 5 5 ns Unit
tH
Minimum Hold Time (Dn,Sn to CLOCK)
CAPACITIVE CHARACTERISTICS
Test Condition Symbol Parameter VCC (V) 5.0 5.0 TA = 25C Min. Typ. 5 59 Max. 10 Value -40 to 85C Min. Max. 10 -55 to 125C Min. Max. 10 pF pF Unit
CIN CPD
Input 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
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
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M74HC356
WAVEFORM 1 : PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)
WAVEFORM 2 : SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle)
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M74HC356
WAVEFORM 3 : PROPAGATION DELAY TIMES, MINIMUM PULSE WIDTH (f=1MHz; 50% duty cycle)
WAVEFORM 4 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
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M74HC356
Plastic DIP-20 (0.25) MECHANICAL DATA
mm. DIM. MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.34 8.5 2.54 22.86 7.1 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 TYP. MAX. inch
P001J
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M74HC356
SO-20 MECHANICAL DATA
mm. DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 8 (max.) 0.291 0.020 13.00 10.65 0.35 0.23 0.5 45 (typ.) 0.496 0.393 0.050 0.450 0.300 0.050 0.029 0.512 0.419 0.1 TYP MAX. 2.65 0.2 2.45 0.49 0.32 0.014 0.009 0.020 0.004 MIN. TYP. MAX. 0.104 0.008 0.096 0.019 0.012 inch
PO13L
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M74HC356
TSSOP20 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 6.4 6.2 4.3 6.5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 6.6 6.6 4.48 0.002 0.031 0.007 0.004 0.252 0.244 0.169 0.256 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0089 0.260 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0087225C
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M74HC356
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. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom (c) http://www.st.com
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