MC74LCX16244 Low−Voltage CMOS 16−Bit Buffer With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) http://onsemi.com The MC74LCX16244 is a high performance, non−inverting 16−bit buffer operating from a 2.3 to 3.6 V 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 5.5 V allows MC74LCX16244 inputs to be safely driven from 5.0 V devices. The MC74LCX16244 is suitable for memory address driving and all TTL level bus oriented transceiver applications. The 4.5 ns maximum propagation delays support high performance applications. Current drive capability is 24 mA at the outputs. The Output Enable (OEn) inputs, when HIGH, disable the outputs by placing them in a HIGH Z condition. The MC74LCX16244 contains sixteen non−inverting buffers with 3−state 5.0 V−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. TSSOP−48 DT SUFFIX CASE 1201 48 1 MARKING DIAGRAM 48 LCX16244G AWLYYWW Features • • • • • • • • • • • • Designed for 2.3 V to 3.6 V VCC Operation 4.5 ns Maximum tpd 5.0 V Tolerant − Interface Capability With 5.0 V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0 V LVTTL Compatible LVCMOS Compatible 24 mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (20 mA) Substantially Reduces System Power Requirements Latchup Performance Exceeds 500 mA ESD Performance: Human Body Model >2000 V; Machine Model >200 V These are Pb−Free Devices* 1 A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 3 of this data sheet. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. © Semiconductor Components Industries, LLC, 2005 August, 2005 − Rev. 6 1 Publication Order Number: MC74LCX16244/D MC74LCX16244 OE1 1 48 OE2 O0 2 47 D0 O1 3 Table 1. PIN NAMES Pins 46 D1 GND 4 45 GND O2 5 44 D2 O3 6 43 D3 VCC 7 42 VCC O4 8 41 D4 O5 9 40 D5 GND 10 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 Output Enable Inputs Inputs Outputs 1 39 GND O6 11 Function OEn D0−D15 O0−O15 OE3 25 OE1 48 OE4 24 OE2 D0:3 D4:7 O0:3 D8:11 O4:7 D12:15 O8:11 O12:15 One of Four Figure 2. Logic Diagram Figure 1. Pinout: 48−Lead (Top View) TRUTH TABLE H L Z X OE1 D0:3 O0:3 OE2 D4:7 O4:7 OE3 D8:11 O8:11 OE4 D12:15 O12:15 L L L L L L L L L L L L L H H L H H L H H L H H H X Z H X Z H X Z H X Z = = = = High Voltage Level Low Voltage Level High Impedance State High or Low Voltage Level and Transitions Are Acceptable; for ICC reasons, DO NOT FLOAT Inputs. http://onsemi.com 2 MC74LCX16244 ORDERING INFORMATION Package Shipping† MC74LCX16244DT TSSOP−48* 39 Units / Rail MC74LCX16244DTG TSSOP−48* 39 Units / Rail MC74LCX16244DTR2 TSSOP−48* 2500 / Tape & Reel M74LCX16244DTR2G TSSOP−48* 2500 / Tape & Reel Device †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *This package is inherently Pb−Free. MAXIMUM RATINGS Symbol VCC Parameter Value DC Supply Voltage Condition Unit −0.5 to +7.0 V V VI DC Input Voltage −0.5 ≤ VI ≤ +7.0 VO DC Output Voltage −0.5 ≤ VO ≤ +7.0 Output in 3−State −0.5 ≤ VO ≤ VCC + 0.5 Output in HIGH or LOW State (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 V 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 Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. IO absolute maximum rating must be observed. RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage Operating Data Retention Only Min Typ Max Unit 2.0 1.5 2.5, 3.3 2.5, 3.3 3.6 3.6 V 0 5.5 V 0 0 VCC 5.5 V VI Input Voltage VO Output Voltage IOH HIGH Level Output Current VCC = 3.0 V − 3.6 V VCC = 2.7 V − 3.0 V VCC = 2.3 V − 2.7 V −24 −12 −8 mA IOL LOW Level Output Current VCC = 3.0 V − 3.6 V VCC = 2.7 V − 3.0 V VCC = 2.3 V − 2.7 V +24 +12 +8 mA TA Operating Free−Air Temperature −40 +85 °C 0 10 ns/V Dt/DV (HIGH or LOW State) (3−State) Input Transition Rise or Fall Rate, VIN from 0.8 V to 2.0 V, VCC = 3.0 V http://onsemi.com 3 MC74LCX16244 DC ELECTRICAL CHARACTERISTICS TA = −40°C to +85°C Symbol VIH VIL VOH VOL Characteristic HIGH Level Input Voltage (Note 2) LOW Level Input Voltage (Note 2) HIGH Level Output Voltage LOW Level Output Voltage Condition Min 2.3 V ≤ VCC ≤ 2.7 V 1.7 2.7 V ≤ VCC ≤ 3.6 V 2.0 Max V 2.3 V ≤ VCC ≤ 2.7 V 0.7 2.7 V ≤ VCC ≤ 3.6 V 0.8 2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA VCC − 0.2 VCC = 2.3 V; IOH = −8 mA 1.8 VCC = 2.7 V; IOH = −12 mA 2.2 VCC = 3.0 V; IOH = −18 mA 2.4 VCC = 3.0 V; IOH = −24 mA 2.2 Unit V V 2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA 0.2 VCC = 2.3 V; IOL= 8 mA 0.6 VCC = 2.7 V; IOL= 12 mA 0.4 VCC = 3.0 V; IOL = 16 mA 0.4 VCC = 3.0 V; IOL = 24 mA 0.55 V II Input Leakage Current 2.3 V ≤ VCC ≤ 3.6 V; 0 V ≤ VI ≤ 5.5 V ±5.0 mA IOZ 3−State Output Current 2.3 ≤ VCC ≤ 3.6 V; 0V ≤ VO ≤ 5.5 V; VI = VIH or V IL ±5.0 mA IOFF Power−Off Leakage Current VCC = 0 V; VI or VO = 5.5 V 10 mA ICC Quiescent Supply Current 2.3 ≤ VCC ≤ 3.6 V; VI = GND or VCC 20 mA 2.3 ≤ VCC ≤ 3.6 V; 3.6 ≤ VI or VO ≤ 5.5 V ±20 mA 2.3 ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V 500 mA DICC Increase in ICC per Input 2. These values of VI are used to test DC electrical characteristics only. AC CHARACTERISTICS tR = tF = 2.5 ns; RL = 500 W TA = −40°C to +85°C VCC = 3.3 V ± 0.3 V CL = 50 pF Symbol Parameter VCC = 2.7 V CL = 50 pF VCC = 2.5 V ± 0.2 V CL = 30 pF Waveform Min Max Min Max Min Max Unit tPLH tPHL Propagation Delay Input to Output 1 1.5 1.5 4.5 4.5 1.5 1.5 5.2 5.2 1.5 1.5 5.4 5.4 ns tPZH tPZL Output Enable Time to High and Low Level 2 1.5 1.5 5.5 5.5 1.5 1.5 6.3 6.3 1.5 1.5 7.2 7.2 ns tPHZ tPLZ Output Disable Time From High and Low Level 2 1.5 1.5 5.4 5.4 1.5 1.5 5.7 5.7 1.5 1.5 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. http://onsemi.com 4 MC74LCX16244 DYNAMIC SWITCHING CHARACTERISTICS TA = +25°C Symbol Characteristic Condition Min Typ Max Unit VOLP Dynamic LOW Peak Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V VCC =2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V 0.8 0.6 V V VOLV Dynamic LOW Valley Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V VCC =2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V −0.8 −0.6 V 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 Condition Typical Unit Input Capacitance VCC = 3.3 V, VI = 0 V or VCC 7 pF COUT Output Capacitance VCC = 3.3 V, VI = 0 V or VCC 8 pF CPD Power Dissipation Capacitance 10 MHz, VCC = 3.3 V, VI = 0 V or VCC 20 pF CIN Parameter http://onsemi.com 5 MC74LCX16244 OEn VCC Vmi VCC Vmi 0V tPZH Vmi Dn tPHZ VOH VHZ 0V tPHL tPLH On VOH Vmo Vmo tPZL Vmo On VOL tPLZ On WAVEFORM 1 − PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Vmo VLZ VOL WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Figure 3. AC Waveforms Table 2. AC WAVEFORMS VCC Symbol 3.3 V ± 0.3 V 2.7 V 2.5 V + 0.2 V Vmi 1.5 V 1.5 V VCC / 2 Vmo 1.5 V 1.5 V VCC / 2 VHZ VOL + 0.3 V VOL + 0.3 V VOL + 0.15 V VLZ VOH − 0.3 V VOH − 0.3 V VOH − 015 V VCC R1 PULSE GENERATOR DUT RT CL RL Figure 4. Test Circuit Table 3. TEST CIRCUIT TEST SWITCH tPLH, tPHL Open tPZL, tPLZ 6 V at VCC = 3.3 0.3 V 6 V at VCC = 2.5 0.2 V Open Collector/Drain tPLH and tPHL 6V tPZH, tPHZ CL = CL = RL = RT = GND 50 pF at VCC = 3.3 0.3 V or equivalent (includes jig and probe capacitance) 30 pF at VCC = 2.5 0.2 V or equivalent (includes jig and probe capacitance) R1 = 500 W or equivalent ZOUT of pulse generator (typically 50 W) http://onsemi.com 6 6 V or VCC x 2 OPEN GND MC74LCX16244 PACKAGE DIMENSIONS TSSOP−48 DT SUFFIX CASE 1201−01 ISSUE A 48X K REF 0.12 (0.005) M T U S V S T U S J J1 48 25 SECTION N−N M 0.254 (0.010) ÉÉÉ ÇÇÇ ÇÇÇ ÉÉÉ B −U− L N 1 24 A −V− PIN 1 IDENT. N F DETAIL E D 0.076 (0.003) −T− SEATING PLANE 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−. K K1 C M 0.25 (0.010) −W− DETAIL E G H http://onsemi.com 7 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_ MC74LCX16244 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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