SEMICONDUCTOR TECHNICAL DATA '.'%+" $+ ,!! ) VCX $+# '% )&+ &(,+* & ,+(,+* ++ '&&- )+$&" The MC74VCX16244 is an advanced performance, non–inverting 16–bit buffer. It is designed for very high–speed, very low–power operation in 1.8V, 2.5V or 3.3V systems. LOW–VOLTAGE 1.8/2.5/3.3V 16–BIT BUFFER When operating at 2.5V (or 1.8V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3V busses. It is guaranteed to be over–voltage tolerant to 3.6V. The MC74VCX16244 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. • Designed for Low Voltage Operation: VCC = 1.8–3.6V • 3.6V Tolerant Inputs and Outputs • High Speed Operation: 2.5ns max for 3.0 to 3.6V DT SUFFIX 48–LEAD PLASTIC TSSOP PACKAGE CASE 1201–01 3.2ns max for 2.3 to 2.7V 5.7ns max for 1.8V • Static Drive: ±24mA Drive at 3.0V ±18mA Drive at 2.3V ±6mA Drive at 1.8V • Supports Live Insertion and Withdrawal • IOFF Specification Guarantees High Impedance When VCC = 0V • Near Zero Static Supply Current in All Three Logic States (20µA) Substantially Reduces System Power Requirements • Latchup Performance Exceeds ±300mA • ESD Performance: Human Body Model >2000V; Machine Model >200V PIN NAMES Pins Function OEn D0–D15 O0–O15 Output Enable Inputs Inputs Outputs This document contains information on a new product. Specifications and information herein are subject to change without notice. 10/97 Motorola, Inc. 1997 1 REV 0.1 MC74VCX16244 OE1 1 48 OE2 O0 2 47 D0 O1 3 46 D1 GND 4 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 Figure 2. Logic Diagram Figure 1. 48–Lead Pinout (Top View) 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 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 2 MC74VCX16244 ABSOLUTE MAXIMUM RATINGS* Symbol Parameter VCC DC Supply Voltage VI DC Input Voltage VO DC Output Voltage Value Condition Unit –0.5 to +4.6 V –0.5 ≤ VI ≤ +4.6 V –0.5 ≤ VO ≤ +4.6 Output in 3–State V –0.5 ≤ VO ≤ VCC + 0.5 Note 1.; Outputs Active 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. IO absolute maximum rating must be observed. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Max Unit 1.8 1.2 3.6 3.6 V –0.3 3.6 V 0 0 VCC 3.6 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 = 2.3V – 2.7V –18 mA IOL LOW Level Output Current, VCC = 2.3V – 2.7V 18 mA IOH HIGH Level Output Current, VCC = 1.8V –6 mA IOL LOW Level Output Current, VCC = 1.8V 6 mA TA Operating Free–Air Temperature –40 +85 °C ∆t/∆V Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V 0 10 ns/V LCX DATA BR1339 — REV 2 Operating Data Retention Only Min (Active State) (3–State) 3 MOTOROLA MC74VCX16244 DC ELECTRICAL CHARACTERISTICS (2.7V < VCC ≤ 3.6V) TA = –40°C to +85°C Symbol Characteristic Condition Min 2.0 VIH HIGH Level Input Voltage (Note 2.) 2.7V < VCC ≤ 3.6V VIL LOW Level Input Voltage (Note 2.) 2.7V < VCC ≤ 3.6V VOH HIGH Level Output Voltage VOL LOW Level Output Voltage 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 = 18mA 0.4 VCC = 3.0V; IOL = 24mA 0.55 V II Input Leakage Current 2.7V < VCC ≤ 3.6V; 0V ≤ VI ≤ 3.6V ±5.0 µA IOZ 3–State Output Current 2.7V < VCC ≤ 3.6V; 0V ≤ VO ≤ 3.6V; VI = VIH or VIL ±10 µA IOFF Power–Off Leakage Current VCC = 0V; 0V ≤ (VI, VO) ≤ 3.6V 10 µA ICC Quiescent Supply Current 2.7V < VCC ≤ 3.6V; VI = GND or VCC 20 µA 2.7V < VCC ≤ 3.6V; VCC ≤ (VI, VO) ≤ 3.6V ±20 µA 750 µA ∆ICC Increase in ICC per Input 2.7V < VCC ≤ 3.6V; VIH = VCC – 0.6V 2. These values of VI are used to test DC electrical characteristics only. DC ELECTRICAL CHARACTERISTICS (2.3V ≤ VCC ≤ 2.7V) TA = –40°C to +85°C Symbol Characteristic Condition Min 1.6 VIH HIGH Level Input Voltage (Note 3.) 2.3V ≤ VCC ≤ 2.7V VIL LOW Level Input Voltage (Note 3.) 2.3V ≤ VCC ≤ 2.7V VOH HIGH Level Output Voltage VOL LOW Level Output Voltage Max V 0.7 2.3V ≤ VCC ≤ 2.7V; IOH = –100µA VCC – 0.2 VCC = 2.3V; IOH = –6mA 2.0 VCC = 2.3V; IOH = –12mA 1.8 VCC = 2.3V; IOH = –18mA 1.7 Unit V V 2.3V ≤ VCC ≤ 2.7V; IOL = 100µA 0.2 VCC = 2.3V; IOL = 12mA 0.4 V VCC = 2.3V; IOL = 18mA 0.6 II Input Leakage Current 2.3V ≤ VCC ≤ 2.7V; 0V ≤ VI ≤ 3.6V ±5.0 µA IOZ 3–State Output Current 2.3V ≤ VCC ≤ 2.7V; 0V ≤ VO ≤ 3.6V; VI = VIH or V IL ±10 µA IOFF Power–Off Leakage Current ICC Quiescent Supply Current VCC = 0V; 0V ≤ (VI, VO) ≤ 3.6V 10 µA 2.3V ≤ VCC ≤ 2.7V; VI = GND or VCC 20 µA 2.3V ≤ VCC ≤ 2.7V; VCC ≤ (VI, VO) ≤ 3.6V ±20 µA 3. These values of VI are used to test DC electrical characteristics only. MOTOROLA 4 LCX DATA BR1339 — REV 2 MC74VCX16244 DC ELECTRICAL CHARACTERISTICS (1.8V ≤ VCC < 2.3V) TA = –40°C to +85°C Symbol Characteristic VIH HIGH Level Input Voltage VIL LOW Level Input Voltage VOH HIGH Level Output Voltage VOL Condition Min 1.8V ≤ VCC < 2.3V 0.7 × VCC 1.8V ≤ VCC < 2.3V LOW Level Output Voltage Max Unit V 0.2 × VCC VCC = 1.8V; IOH = –100µA VCC – 0.2 VCC = 1.8V; IOH = –6mA 1.4 V V VCC = 1.8V; IOL = 100µA 0.2 VCC = 1.8V; IOL = 6mA 0.3 V II Input Leakage Current VCC = 1.8V; 0 ≤ VI ≤ 3.6V ±5.0 µA IOZ 3–State Output Current VCC = 1.8V; 0 ≤ VO ≤ 3.6V; VI = VIH or VIL ±10 µA IOFF Power–Off Leakage Current VCC = 0V; 0V ≤ (VI, VO) ≤ 3.6V 10 µA ICC Quiescent Supply Current VCC = 1.8V; VI = VCC or GND 20 µA VCC = 1.8V; VCC ≤ (VI, VO) ≤ 3.6V ±20 AC CHARACTERISTICS (Note 4.; tR = tF = 2.0ns; CL = 30pF; RL = 500Ω) Limits TA = –40°C to +85°C VCC = 3.0V to 3.6V Symbol Parameter VCC = 2.3V to 2.7V VCC = 1.8V Waveform Min Max Min Max Max Unit tPLH tPHL Propagation Delay Input to Output 1 0.8 0.8 2.5 2.5 1.0 1.0 3.2 3.2 5.7 5.7 ns tPZH tPZL Output Enable Time to High and Low Level 2 0.8 0.8 3.5 3.5 1.0 1.0 4.3 4.3 7.0 7.0 ns tPHZ tPLZ Output Disable Time From High and Low Level 2 0.8 0.8 3.5 3.5 1.0 1.0 3.8 3.8 5.0 5.0 ns tOSHL tOSLH Output–to–Output Skew (Note 5.) 0.5 0.5 0.5 0.5 ns 0.5 0.5 4. These AC parameters are preliminary and may be modified prior to release. For CL = 50pF, add approximately 300ps to the AC maximum specification. 5. 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. LCX DATA BR1339 — REV 2 5 MOTOROLA MC74VCX16244 DYNAMIC SWITCHING CHARACTERISTICS TA = +25°C Symbol VOLP VOLV VOHV Characteristic Condition Typ Unit Dynamic LOW Peak Voltage VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V 0.25 V (Note 6.) VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V 0.6 VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V 0.8 Dynamic LOW Valley Voltage VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V –0.25 (Note 6.) VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V –0.6 VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V –0.8 Dynamic HIGH Valley Voltage VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V 1.5 (Note 7.) VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V 1.9 V V VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V 2.2 6. 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. 7. 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 HIGH state. CAPACITIVE CHARACTERISTICS Symbol Parameter Condition Typical Unit CIN Input Capacitance Note 8. 6 pF COUT Output Capacitance Note 8. 7 pF CPD Power Dissipation Capacitance Note 8., 10MHz 20 pF 8. VCC = 1.8, 2.5 or 3.3V; VI = 0V or VCC. VIH Vm Dn Vm 0V tPLH tPHL Vm On VOH Vm VOL WAVEFORM 1 – PROPAGATION DELAYS tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns VIH Vm OEn 0V tPHZ tPZH Vm On VOH Vy ≈ 0V tPZL On tPLZ ≈ VCC Vm Vx VOL WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns Figure 3. AC Waveforms MOTOROLA 6 LCX DATA BR1339 — REV 2 MC74VCX16244 VCC S b l Symbol 3.3V ±0.3V 2.5V ±0.2V 1.8V VIH 2.7V VCC VCC Vm 1.5V VCC/2 VCC/2 Vx VOL + 0.3V VOL + 0.15V VOL + 0.15V Vy VOH – 0.3V VOH – 0.15V VOH – 0.15V VCC PULSE GENERATOR RL DUT CL RT TEST 6V or VCC × 2 OPEN GND RL SWITCH tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 ±0.3V; VCC × 2 at VCC = 2.5 ±0.2V; 1.8V tPZH, tPHZ GND CL = 30pF or equivalent (Includes jig and probe capacitance) RL = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) Figure 4. Test Circuit LCX DATA BR1339 — REV 2 7 MOTOROLA MC74VCX16244 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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