SEMICONDUCTOR TECHNICAL DATA $+$"( !( )& !( $"&#( #%)(' # )(%)(' (( #*&(!# The MC74LCX16240A is a high performance, inverting 16–bit buffer operating from a 2.7 to 3.6V supply. The device is nibble controlled. Each nibble has separate Output Enable inputs which can be tied together for full 16–bit operation. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX16240A inputs to be safely driven from 5V devices. The LCX16240A is suitable for memory address driving and all TTL level bus oriented transceiver applications. Current drive capability is 24mA at the outputs. The Output Enable (OEn) inputs, when HIGH, disable the outputs by placing them in a HIGH Z condition. • • • • • • • • • • LOW–VOLTAGE CMOS 16–BIT BUFFER Designed for 2.7 to 3.6V VCC Operation 4.9ns Maximum tpd 5V Tolerant — Interface Capability With 5V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0V JEDEC Standard JESD–36 Compatible DT SUFFIX PLASTIC TSSOP PACKAGE CASE 1201–01 LVTTL Compatible LVCMOS Compatible 24mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (20µA) Substantially Reduces System Power Requirements • Latchup Performance Exceeds 500mA • ESD Performance: Human Body Model >2000V; Machine Model >200V The MC74LCX16240A contains sixteen inverting buffers with 3–state 5V–tolerant outputs. The device is nibble controlled with each nibble functioning identically, but independently. The control pins may be tied together to obtain full 16–bit operation. The 3–state outputs are controlled by an Output Enable (OEn) input for each nibble. When OEn is LOW, the outputs are on. When OEn is HIGH, the outputs are in the high impedance state. PIN NAMES Pins Function OEn D0–D15 O0–O15 Output Enable Inputs Inputs Outputs 8/96 Motorola, Inc. 1996 1 REV 0 MC74LCX16240A OE1 1 48 OE2 O0 2 47 D0 O1 3 46 D1 GND 4 LOGIC DIAGRAM 45 GND O2 5 44 D2 O3 6 43 D3 VCC 7 OE1 OE2 1 OE3 48 OE4 25 24 42 VCC O4 8 41 D4 O5 9 40 D5 GND 10 D0:3 O0:3 D8:11 O8:11 D4:7 O4:7 D12:15 O12:15 39 GND O6 11 38 D6 O7 12 37 D7 O8 13 36 D8 O9 14 35 D9 GND 15 34 GND O10 16 33 D10 O11 17 32 D11 VCC 18 31 VCC O12 19 30 D12 O13 20 29 D13 GND 21 28 GND O14 22 27 D14 O15 23 26 D15 OE4 24 25 OE3 One of Four OE1 D0:3 O0:3 OE2 D4:7 O4:7 OE3 D8:11 O8:11 OE4 D12:15 O12:15 L L H L L H L L H L L H L H L L H L L H L L H L H X Z H X Z H X Z H X Z H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions Are Acceptable, for ICC reasons, DO NOT FLOAT Inputs MOTOROLA 2 LCX DATA BR1339 — REV 3 MC74LCX16240A ABSOLUTE MAXIMUM RATINGS* Symbol Parameter VCC DC Supply Voltage VI DC Input Voltage VO DC Output Voltage Value Condition Unit –0.5 to +7.0 V –0.5 ≤ VI ≤ +7.0 V –0.5 ≤ VO ≤ +7.0 Output in 3–State V –0.5 ≤ VO ≤ VCC + 0.5 Note 1. V IIK DC Input Diode Current –50 VI < GND mA IOK DC Output Diode Current –50 VO < GND mA +50 VO > VCC mA IO DC Output Source/Sink Current ±50 mA ICC DC Supply Current Per Supply Pin ±100 mA IGND DC Ground Current Per Ground Pin ±100 mA TSTG Storage Temperature Range –65 to +150 °C * Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied. 1. Output in HIGH or LOW State. IO absolute maximum rating must be observed. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Operating Data Retention Only Min Typ Max Unit 2.0 1.5 3.3 3.3 3.6 3.6 V 0 5.5 V 0 0 VCC 5.5 V VCC Supply Voltage VI Input Voltage VO Output Voltage IOH HIGH Level Output Current, VCC = 3.0V – 3.6V –24 mA IOL LOW Level Output Current, VCC = 3.0V – 3.6V 24 mA IOH HIGH Level Output Current, VCC = 2.7V – 3.0V –12 mA IOL LOW Level Output Current, VCC = 2.7V – 3.0V 12 mA TA Operating Free–Air Temperature ∆t/∆V Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V (HIGH or LOW State) (3–State) –40 +85 °C 0 10 ns/V DC ELECTRICAL CHARACTERISTICS TA = –40°C to +85°C Symbol Characteristic VIH HIGH Level Input Voltage (Note 2.) VIL LOW Level Input Voltage (Note 2.) VOH HIGH Level Output Voltage VOL LOW Level Output Voltage Condition Min 2.7V ≤ VCC ≤ 3.6V 2.0 2.7V ≤ VCC ≤ 3.6V Max V 0.8 2.7V ≤ VCC ≤ 3.6V; IOH = –100µA VCC – 0.2 VCC = 2.7V; IOH = –12mA 2.2 VCC = 3.0V; IOH = –18mA 2.4 VCC = 3.0V; IOH = –24mA 2.2 Unit V V 2.7V ≤ VCC ≤ 3.6V; IOL = 100µA 0.2 VCC = 2.7V; IOL= 12mA 0.4 VCC = 3.0V; IOL = 16mA 0.4 VCC = 3.0V; IOL = 24mA 0.55 V 2. These values of VI are used to test DC electrical characteristics only. LCX DATA BR1339 — REV 3 3 MOTOROLA MC74LCX16240A DC ELECTRICAL CHARACTERISTICS (continued) TA = –40°C to +85°C Symbol Characteristic Condition Min Max Unit II Input Leakage Current 2.7V ≤ VCC ≤ 3.6V; 0V ≤ VI ≤ 5.5V ±5.0 µA IOZ 3–State Output Current 2.7 ≤ VCC ≤ 3.6V; 0V ≤ VO ≤ 5.5V; VI = VIH or V IL ±5.0 µA IOFF Power–Off Leakage Current VCC = 0V; VI or VO = 5.5V 10 µA ICC Quiescent Supply Current 2.7 ≤ VCC ≤ 3.6V; VI = GND or VCC 20 µA 2.7 ≤ VCC ≤ 3.6V; 3.6 ≤ VI or VO ≤ 5.5V ±20 µA 2.7 ≤ VCC ≤ 3.6V; VIH = VCC – 0.6V 500 µA ∆ICC Increase in ICC per Input AC CHARACTERISTICS (tR = tF = 2.5ns; CL = 50pF; RL = 500Ω) Limits TA = –40°C to +85°C VCC = 3.0V to 3.6V Symbol Parameter VCC = 2.7V Waveform Min Max Max Unit tPLH tPHL Propagation Delay Input to Output 1 1.5 1.5 4.9 4.9 5.9 5.9 ns tPZH tPZL Output Enable Time to High and Low Level 2 1.5 1.5 6.5 6.5 7.5 7.5 ns tPHZ tPLZ Output Disable Time From High and Low Level 2 1.5 1.5 5.5 5.5 6.5 6.5 ns tOSHL tOSLH Output–to–Output Skew (Note 3.) 1.0 1.0 ns 3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (tOSHL) or LOW–to–HIGH (tOSLH); parameter guaranteed by design. DYNAMIC SWITCHING CHARACTERISTICS TA = +25°C Symbol Characteristic Condition VOLP Dynamic LOW Peak Voltage (Note 4.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V Min Typ 0.8 Max Unit V VOLV Dynamic LOW Valley Voltage (Note 4.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V 4. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is measured in the LOW state. CAPACITIVE CHARACTERISTICS Symbol Parameter Condition Typical Unit CIN Input Capacitance VCC = 3.3V, VI = 0V or VCC 7 pF COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 pF CPD Power Dissipation Capacitance 10MHz, VCC = 3.3V, VI = 0V or VCC 20 pF MOTOROLA 4 LCX DATA BR1339 — REV 3 MC74LCX16240A 2.7V Dn 1.5V 1.5V 0V tPHL tPLH VOH 1.5V On 1.5V VOL WAVEFORM 1 – PROPAGATION DELAYS tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns 2.7V 1.5V OEn 0V tPZH tPHZ VCC VOH – 0.3V 1.5V On ≈ 0V tPZL tPLZ ≈ 3.0V 1.5V On VOL + 0.3V GND WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns Figure 1. AC Waveforms VCC PULSE GENERATOR R1 DUT CL RT TEST 6V OPEN GND RL SWITCH tPLH, tPHL Open tPZL, tPLZ 6V Open Collector/Drain tPLH and tPHL 6V tPZH, tPHZ GND CL = 50pF or equivalent (Includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) Figure 2. Test Circuit LCX DATA BR1339 — REV 3 5 MOTOROLA MC74LCX16240A OUTLINE DIMENSIONS DT SUFFIX PLASTIC TSSOP PACKAGE CASE 1201–01 ISSUE A 48X K K1 K REF 0.12 (0.005) M T U S V ÉÉÉ ÇÇÇ ÇÇÇ ÉÉÉ S T U S J J1 48 25 SECTION N–N M 0.254 (0.010) NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 5. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 6. DIMENSIONS A AND B ARE TO BE DETERMINED AT DATUM PLANE –W–. B –U– L N 1 24 A –V– PIN 1 IDENT. N F DETAIL E D C M 0.25 (0.010) –W– 0.076 (0.003) –T– SEATING DETAIL E PLANE G DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 12.40 12.60 6.00 6.20 ––– 1.10 0.05 0.15 0.50 0.75 0.50 BSC 0.37 ––– 0.09 0.20 0.09 0.16 0.17 0.27 0.17 0.23 7.95 8.25 0_ 8_ INCHES MIN MAX 0.488 0.496 0.236 0.244 ––– 0.043 0.002 0.006 0.020 0.030 0.0197 BSC 0.015 ––– 0.004 0.008 0.004 0.006 0.007 0.011 0.007 0.009 0.313 0.325 0_ 8_ H Motorola reserves the right to make changes without further notice to any products herein. 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