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| MOTOROLA SEMICONDUCTOR TECHNICAL DATA 8-Input Data Selector/ Multiplexer with 3-State Outputs High-Performance Silicon-Gate CMOS The MC54/74HC251 is identical in pinout to the LS251. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device selects one of the eight binary Data Inputs, as determined by the Address Inputs. The Output Enable pin must be a low level for the selected data to appear at the outputs. If Output Enable is high, both the Y and the Y outputs are in the high-impedance state. This 3-state feature allows the HC251 to be used in bus-oriented systems. The HC251 is similar in function to the HC151 which does not have 3-state outputs. * * * * * * Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2 to 6 V Low Input Current: 1 A High Noise Immunity Characteristic of CMOS Devices In Compliance with the Requirements Defined by JEDEC Standard No. 7A * Chip Complexity: 134 FETs or 33.5 Equivalent Gates MC54/74HC251 J SUFFIX CERAMIC PACKAGE CASE 620-10 1 16 16 1 N SUFFIX PLASTIC PACKAGE CASE 648-08 16 1 D SUFFIX SOIC PACKAGE CASE 751B-05 ORDERING INFORMATION MC54HCXXXJ MC74HCXXXN MC74HCXXXD Ceramic Plastic SOIC PIN ASSIGNMENT D3 D2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC D4 D5 D6 D7 A0 A1 A2 LOGIC DIAGRAM D1 D0 Y D0 D1 D2 DATA INPUTS D3 4 3 2 1 5Y DATA OUTPUTS 6Y Y OUTPUT ENABLE GND D4 15 D5 14 D6 13 D7 12 A0 11 10 A1 A2 9 7 PIN 16 = VCC PIN 8 = GND FUNCTION TABLE Inputs A2 X L L L L H H H H A1 A0 X L L H H L L H H X L H L H L H L H Output Enable H L L L L L L L L Outputs Y Z D0 D1 D2 D3 D4 D5 D6 D7 Y Z D0 D1 D2 D3 D4 D5 D6 D7 ADDRESS INPUTS OUTPUT ENABLE Z = high impedance D0, D1, ..., D7 = the level of the respective D input. 10/95 (c) Motorola, Inc. 1995 1 REV 6 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I III I I I I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I III I I I I I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I III I I I I I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIIIII II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIII I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I I I II I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I IIIIIIIIIIIIIIIIIIIIIII I IIIIIIIIIIIIIIIIIIIIIII III I I IIIIIIIIIIIIIIIIIIIIIII III I III I I I I IIIIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIII III I III I I III I I I III I I IIIIIIIIIIIIIIIIIIIIIII III I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII II I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIII III III I I IIIIIIIIIIIIIIIIIIIIIII III I IIIIIIIIIIIIIIIIIIIIIII III I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIII III IIIIIIIIIIIIIIIIIIIII II I I IIIIIIIIIIIIIIIIIIIIIII III I IIIIIIIIIIIIIIIIIIIIIII III I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII II I IIIIIIIIIIIIIIIIIIIIIII III I IIIIIIIIIIIIIIIIIIIIIII III I * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. Derating -- Plastic DIP: - 10 mW/_C from 65_ to 125_C Ceramic DIP: - 10 mW/_C from 100_ to 125_C SOIC Package: - 7 mW/_C from 65_ to 125_C For high frequency or heavy load considerations, see Chapter 2 of the Motorola High-Speed CMOS Data Book (DL129/D). NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High-Speed CMOS Data Book (DL129/D). IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I III I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I III I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII I IIIIIIII I I I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIII I IIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIII III IIIIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIII MAXIMUM RATINGS* MOTOROLA DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) RECOMMENDED OPERATING CONDITIONS MC54/74HC251 Symbol Vin, Vout Symbol Symbol VCC Vout Tstg ICC Iout VCC Vin PD TL VOH tr, tf Iin VOL ICC TA IOZ VIH VIL Iin Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) (Ceramic DIP) Storage Temperature Power Dissipation in Still Air, Plastic or Ceramic DIP SOIC Package DC Supply Current, VCC and GND Pins DC Output Current, per Pin DC Input Current, per Pin DC Output Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Supply Voltage (Referenced to GND) Input Rise and Fall Time (Figure 1) Operating Temperature, All Package Types DC Input Voltage, Output Voltage (Referenced to GND) DC Supply Voltage (Referenced to GND) Maximum Quiescent Supply Current (per Package) Maximum Three-State Leakage Current Maximum Input Leakage Current Maximum Low-Level Output Voltage Minimum High-Level Output Voltage Maximum Low-Level Input Voltage Minimum High-Level Input Voltage Parameter Parameter Parameter Vin = VCC or GND Output in High-Impedance State Vin = VIL or VIH Vout = VCC or GND Vin = VCC or GND Iout = 0 A Vin = VIH or VIL |Iout| 20 A Vin = VIH or VIL |Iout| 20 A Vin = VIH or VIL |Iout| |Iout| Vin = VIH or VIL |Iout| |Iout| Vout = 0.1 V or VCC - 0.1 V |Iout| 20 A Vout = 0.1 V or VCC - 0.1 V |Iout| 20 A v v v v VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Test Conditions - 0.5 to VCC + 0.5 - 1.5 to VCC + 1.5 - 65 to + 150 - 0.5 to + 7.0 2 - 55 Min 2.0 Value v 4.0 mA v 5.2 mA v 4.0 mA v 5.2 mA 0 0 0 0 75 50 25 260 300 750 500 + 125 1000 500 400 VCC Max 6.0 VCC V 6.0 6.0 6.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Unit Unit mW mA mA mA _C _C _C ns V V V V V - 55 to 25_C 0.5 0.1 1.5 3.15 4.2 0.26 0.26 3.98 5.48 0.1 0.1 0.1 1.9 4.4 5.9 0.3 0.9 1.2 8 This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, Vin and Vout should be constrained to the range GND (Vin or Vout) VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. Guaranteed Limit v 85_C v 125_C High-Speed CMOS Logic Data DL129 -- Rev 6 5.0 1.0 1.5 3.15 4.2 0.33 0.33 3.84 5.34 0.1 0.1 0.1 1.9 4.4 5.9 0.3 0.9 1.2 80 v 1.0 1.5 3.15 4.2 0.40 0.40 3.70 5.20 10 160 0.1 0.1 0.1 1.9 4.4 5.9 0.3 0.9 1.2 v Unit A A A V V V V IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I III I I I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I III I I I I I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I III I I I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I III I I I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I II I II I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII II I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I II I NOTES: 1. For propagation delays with loads other than 50 pF, see Chapter 2 of the Motorola High-Speed CMOS Data Book (DL129/D). 2. Information on typical parametric values can be found in Chapter 2 of the Motorola High-Speed CMOS Data Book (DL129/D). High-Speed CMOS Logic Data DL129 -- Rev 6 D0, D1, ..., D7 (Pins 4, 3, 2, 1, 15, 14, 13, 12) INPUTS * Used to determine the no-load dynamic power consumption: PD = CPD VCC 2 f + ICC VCC . For load considerations, see Chapter 2 of the Motorola High-Speed CMOS Data Book (DL129/D). A0, A1, A2 (Pins 11, 10, 9) CONTROL INPUTS Data inputs. Data on one of these eight binary inputs may be selected to appear on the output. Address inputs. The data on these pins are the binary address of the selected input (see the Function Table). AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns) Symbol tPLH, tPHL tPLH, tPHL tTLH, tTHL tPZL, tPZH tPLZ, tPHZ tPZL, tPZH tPLZ, tPHZ CPD Cout Cin Power Dissipation Capacitance (Per Package)* Maximum Three-State Output Capacitance (Output in High-Impedance State) Maximum Input Capacitance Maximum Output Transition Time, Any Output (Figures 1 and 5) Maximum Propagation Delay, Output Enable to Output Y (Figures 4 and 6) Maximum Propagation Delay, Output Enable to Output Y (Figures 4 and 6) Maximum Propagation Delay, Output Enable to Output Y (Figures 4 and 6) Maximum Propagation Delay, Output Enable to Output Y (Figures 4 and 6) Maximum Propagation Delay, Input A to Output Y or Y (Figures 3 and 5) Maximum Propagation Delay, Input D to Output Y or Y (Figures 1, 2 and 5) Parameter PIN DESCRIPTIONS 3 Output Enable (Pin 7) Data outputs. The selected data is presented at these pins in both true (Y output) and complemented (Y output) forms. Y, Y (Pins 5, 6) OUTPUTS Output Enable. This input pin must be at a low level for the selected data to appear at the outputs. If the Output Enable pin is high, both the Y and Y outputs are taken to the high- impedance state. 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 -- -- - 55 to 25_C Typical @ 25C, VCC = 5.0 V 150 30 26 220 44 37 145 29 25 195 39 33 205 41 35 185 37 31 15 10 75 15 13 Guaranteed Limit v 85_C v 125_C 190 38 33 275 55 47 180 36 31 245 49 42 255 51 43 230 46 39 15 10 95 19 16 36 MC54/74HC251 225 45 38 330 66 56 220 44 38 295 59 50 310 62 53 280 56 48 110 22 19 15 10 MOTOROLA Unit pF pF pF ns ns ns ns ns ns ns MC54/74HC251 SWITCHING WAVEFORMS tr INPUT D tPLH OUTPUT Y tTLH 90% 50% 10% tTHL 90% 50% 10% tPHL OUTPUT Y tTLH tf VCC GND INPUT D tPHL 90% 50% 10% tTHL 90% 50% 10% tPLH tr tf VCC GND Figure 1. Figure 2. VCC VALID INPUT A tPLH OUTPUT Y OR Y 50% 50% VALID VCC GND tPHL OUTPUT ENABLE 50% GND tPZL tPLZ HIGH IMPEDANCE 10% 90% VOL VOH HIGH IMPEDANCE Y OR Y 50% tPZH tPHZ Y OR Y 50% Figure 3. Figure 4. TEST CIRCUITS TEST POINT OUTPUT DEVICE UNDER TEST DEVICE UNDER TEST TEST POINT OUTPUT 1 k CONNECT TO VCC WHEN TESTING tPLZ AND tPZL. CONNECT TO GND WHEN TESTING tPHZ AND tPZH. CL* CL* * Includes all probe and jig capacitance * Includes all probe and jig capacitance Figure 5. Figure 6. MOTOROLA 4 High-Speed CMOS Logic Data DL129 -- Rev 6 MC54/74HC251 EXPANDED LOGIC DIAGRAM D0 D1 4 3 D2 2 D3 1 DATA INPUTS D4 15 D5 14 D6 13 D7 12 A 11 5Y 6Y DATA OUTPUTS B 10 C 9 OUTPUT 7 ENABLE High-Speed CMOS Logic Data DL129 -- Rev 6 5 MOTOROLA MC54/74HC251 OUTLINE DIMENSIONS -A - 16 9 J SUFFIX CERAMIC PACKAGE CASE 620-10 ISSUE V -B - C L 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIM F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. INCHES MIN MAX 0.750 0.785 0.240 0.295 -- 0.200 0.015 0.020 0.050 BSC 0.055 0.065 0.100 BSC 0.008 0.015 0.125 0.170 0.300 BSC 15 0 0.020 0.040 MILLIMETERS MIN MAX 19.05 19.93 6.10 7.49 -- 5.08 0.39 0.50 1.27 BSC 1.40 1.65 2.54 BSC 0.21 0.38 3.18 4.31 7.62 BSC 15 0 1.01 0.51 -T SEATING - PLANE N E F G D 16 PL 0.25 (0.010) M K M J 16 PL 0.25 (0.010) M TB S TA S DIM A B C D E F G J K L M N -A - 16 9 N SUFFIX PLASTIC PACKAGE CASE 648-08 ISSUE R B 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M S INCHES MILLIMETERS MIN MAX MIN MAX 0.740 0.770 18.80 19.55 6.35 0.250 0.270 6.85 3.69 0.145 0.175 4.44 0.39 0.015 0.021 0.53 1.02 0.040 0.070 1.77 0.100 BSC 2.54 BSC 0.050 BSC 1.27 BSC 0.21 0.008 0.015 0.38 2.80 0.110 0.130 3.30 7.50 0.295 0.305 7.74 0 0 10 10 0.020 0.040 0.51 1.01 F S C L -T - H G D 16 PL 0.25 (0.010) M SEATING PLANE K J TA M M -A - 16 9 D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J -B - 1 8 P 8 PL 0.25 (0.010) M B M G F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0 7 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0 7 0.229 0.244 0.010 0.019 K C -T SEATING - PLANE R X 45 M D 16 PL 0.25 (0.010) M J T B S A S MOTOROLA 6 High-Speed CMOS Logic Data DL129 -- Rev 6 MC54/74HC251 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 MFAX: RMFAX0@email.sps.mot.com -TOUCHTONE (602) 244-6609 INTERNET: http://Design-NET.com JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, Toshikatsu Otsuki, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-3521-8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 High-Speed CMOS Logic Data DL129 -- Rev 6 CODELINE 7 *MC54/74HC251/D* MC54/74HC251/D MOTOROLA |
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