MC74LCX16373 Low-Voltage CMOS 16-Bit Transparent Latch With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) The MC74LCX16373 is a high performance, non−inverting 16−bit transparent latch operating from a 2.3 V to 3.6 V supply. The device is byte controlled. Each byte has separate Output Enable and Latch Enable inputs. These control pins 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 MC74LCX16373 inputs to be safely driven from 5.0 V devices. The MC74LCX16373 contains 16 D−type latches with 3−state 5.0 V−tolerant outputs. When the Latch Enable (LEn) inputs are HIGH, data on the Dn inputs enters the latches. In this condition, the latches are transparent, i.e., a latch output will change state each time its D input changes. When LE is LOW, the latches store the information that was present on the D inputs a setup time preceding the HIGH−to−LOW transition of LE. The 3−state outputs are controlled by the Output Enable (OEn) inputs. When OE is LOW, the outputs are enabled. When OE is HIGH, the standard outputs are in the high impedance state, but this does not interfere with new data entering into the latches. Features • • • • • • • • • • • • Designed for 2.3 to 3.6 V VCC Operation 5.4 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* http://onsemi.com TSSOP−48 DT SUFFIX CASE 1201 48 1 MARKING DIAGRAM 48 LCX16373G AWLYYWW 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, 2010 July, 2010 − Rev. 8 1 Publication Order Number: MC74LCX16373/D MC74LCX16373 1 OE1 1 48 LE1 O0 2 47 D0 O1 3 46 D1 GND 4 O2 5 45 GN D 44 D2 O3 6 43 D3 VCC 7 42 VCC O4 8 41 D4 O5 9 40 D5 GND 10 O6 11 39 GN D 38 D6 O7 12 37 D7 O8 13 36 D8 O9 14 35 D9 GND 15 O10 16 34 GN D 33 D10 O11 17 32 D11 VCC 18 31 VCC O12 19 30 D12 O13 20 29 D13 GND 21 O14 22 28 GN D 27 D14 O15 23 26 D15 OE2 24 25 LE2 24 OE1 OE2 48 25 LE1 LE2 2 nLE 47 D0 36 D8 D D1 35 D9 D 44 D2 O2 Q 33 D10 D 43 D3 O3 Q 32 D11 D D4 D12 D5 O5 Q 29 D13 D D6 D14 D7 O7 Q 22 26 D15 D O14 Q D 12 nLE O13 Q 27 D 37 20 nLE nLE O6 Q O12 D 11 nLE 38 19 Q D 9 nLE O11 Q 30 D 40 17 nLE nLE O4 Q O10 Q D 8 nLE 41 16 nLE D 6 nLE O9 Q D 5 nLE 14 nLE O1 Q O8 Q D 3 nLE 46 13 nLE O0 Q 23 nLE O15 Q D Figure 2. Logic Diagram Figure 1. Pinout: 48−Lead (Top View) Table 1. PIN NAMES Pins Function OEn LEn D0−D15 O0−O15 Output Enable Inputs Latch Enable Inputs Inputs Outputs TRUTH TABLE Inputs H L Z X Outputs LE1 OE1 D0:7 O0:7 Inputs Outputs LE2 OE2 D8:15 O8:15 X H X Z X H X Z H L L L H L L L H L H H H L H H L L X O0 L L X O0 = = = = 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 MC74LCX16373 ORDERING INFORMATION Package Shipping† MC74LCX16373DT TSSOP−48* 39 Units / Rail MC74LCX16373DTG TSSOP−48* 39 Units / Rail MC74LCX16373DTR2 TSSOP−48* 2500 / Tape & Reel M74LCX16373DTR2G 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 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 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 −55 +125 °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 MC74LCX16373 DC ELECTRICAL CHARACTERISTICS TA = −55°C to +125°C Symbol VIH VIL VOH VOL Condition Min 2.3 V ≤ VCC ≤ 2.7 V 1.7 2.7 V ≤ VCC ≤ 3.6 V 2.0 Characteristic HIGH Level Input Voltage (Note 2) LOW Level Input Voltage (Note 2) HIGH Level Output Voltage LOW Level Output Voltage 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; CL = 50 pF; RL = 500 W TA = −55°C to +125°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 Dn to On 1 1.5 1.5 5.4 5.4 1.5 1.5 5.9 5.9 1.5 1.5 6.5 6.5 ns tPLH tPHL Propagation Delay LE to On 3 1.5 1.5 5.5 5.5 1.5 1.5 6.4 6.4 1.5 1.5 6.6 6.6 ns tPZH tPZL Output Enable Time to High and Low Level 2 1.5 1.5 6.1 6.1 1.5 1.5 6.5 6.5 1.5 1.5 7.9 7.9 ns tPHZ tPLZ Output Disable Time From High and Low Level 2 1.5 1.5 6.0 6.0 1.5 1.5 6.3 6.3 1.5 1.5 7.2 7.2 ns ts Setup Time, HIGH or LOW Dn to LE 3 2.5 2.5 3.0 ns th Hold Time, HIGH or LOW Dn to LE 3 1.5 1.5 2.0 ns tw LE Pulse Width, HIGH 3 3.0 3.0 3.5 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 MC74LCX16373 DYNAMIC SWITCHING CHARACTERISTICS TA = +25°C Symbol Characteristic Min Condition 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 VCC Vmi Vmi Dn tPHL tPLH 0V VOH Vmo On Vmo VOL WAVEFORM 1 − PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns VCC OEn VCC Dn Vmi Vmi tPZH tPHZ Vmo On ts th VCC VOH VHZ LEn Vmo tw Vmo 0V tPZL On 0V 0V tPLH, tPHL tPLZ Vmo VOH On VLZ VOL WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Vmo VOL WAVEFORM 3 − LE to On PROPAGATION DELAYS, LE MINIMUM PULSE WIDTH, Dn to LE SETUP AND HOLD TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns except when noted 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 http://onsemi.com 5 MC74LCX16373 VCC PULSE GENERATOR R1 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 × 2 OPEN GND MC74LCX16373 PACKAGE DIMENSIONS TSSOP−48 CASE 1201−01 ISSUE B 48X K K1 K REF 0.12 (0.005) T U M S V S T U S J J1 25 0.254 (0.010) M 48 SECTION N−N B −U− L 1 N 24 A −V− PIN 1 IDENT. ÉÉÉ ÇÇÇ ÇÇÇ ÉÉÉ ÇÇÇ ÉÉÉ DETAIL E 0.076 (0.003) −T− SEATING PLANE DIM A B C D F G H J J1 K K1 L M N M F D 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−. 0.25 (0.010) C −W− DETAIL E H G 48X 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_ RECOMMENDED SOLDERING FOOTPRINT 48X 0.32 1.00 8.45 1 0.50 PITCH DIMENSIONS: MILLIMETERS 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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