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| MC74F657A,B OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS) The MC74F657A and MC74F657B are Octal Bidirectional Transceivers with an 8-bit parity Generator/Checker and 3-state outputs. The A and B options are faster versions of the F657 and contain eight noninverting buffers with 3-state outputs and an 8-bit parity generator/checker. These devices are intended for bus-oriented applications. The buffers have a guaranteed current sinking capability of 24 mA at the A ports and 64 mA at the B ports. The Transmit/Receiver (T/R) input determines the direction of the data flow through the bidirectional transceivers. Transmit (active HIGH) enables data from A ports to B ports; Receive (active LOW) enables data from B ports to A ports. * High-Impedance NPN Base Input for Reduced Loading (20 A in HIGH and LOW States) * Ideal in Applications Where High Output Drive and Light Bus Loading are Required (IIL is 20 A versus Fast std of 600 A) * Combines F245 and F280A Functions in One Package * 3-State Outputs * B Outputs, PARITY, ERROR, Sink 64 mA and Source 15 mA * 15 mA Source Current * Input Diodes for Termination Effects * Glitchless Outputs During Power Up and Power Down * High Impedance Outputs During Power Off * ESD Protection > 4000 Volts PIN ASSIGNMENT OE B 0 23 B 1 22 B 2 21 B 3 20 GND GND B 4 17 B 5 16 B 6 15 B 7 14 PARITY OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS) FASTTM SCHOTTKY TTL 24 1 J SUFFIX CERAMIC CASE 758-01 24 1 N SUFFIX PLASTIC CASE 724-03 24 1 24 19 18 13 DW SUFFIX SOIC CASE 751E-03 ORDERING INFORMATION MC74FXXXAJ/BJ MC74FXXXAN/BN MC74FXXXADW/BDW 1 T/R 2 A 0 3 A 1 4 A 2 5 A 3 6 A 4 7 V CC 8 A 5 9 A 6 10 A 7 11 12 ODD/ ERROR EVEN Ceramic Plastic SOIC LOGIC SYMBOL 2 3 4 5 6 8 9 10 A 0 1 24 11 T/R A 1 A 2 A 3 A 4 A 5 A 6 A 7 PARITY OE EVEN/ODD ERROR 13 12 B 0 B 1 B 2 B 3 B 4 B 5 B 6 B 7 23 22 21 20 17 16 15 14 FAST AND LS TTL DATA 4-403 MC74F657A, B GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current -- High Output Current -- Low Parameter 74 74 74 74 Min 4.5 0 Typ 5.0 25 Max 5.5 70 -3.0/-15 24/64 Unit V C mA mA FUNCTION TABLE Number of Inputs That are High OE L L L L L L T/R H H L L L L Inputs Even/Odd H L H H L L Input/Output Parity H L H L H L Error Z Z H L L H Outputs Outputs Mode Transmit Transmit Receive Receive Receive Receive 0, 2, 4, 6, 8 Number of Inputs That are High OE L L L L L L H T/R H H L L L L X Inputs Even/Odd H L H H L L X Input/Output Parity L H H L H L Z Error Z Z L H H L Z Outputs Outputs Mode Transmit Transmit Receive Receive Receive Receive Z 1, 3, 5, 7 Don't Care H = HIGH Voltage Level; L = LOW Voltage Level; X = Don't Care; Z = HIGH impedance state. FAST AND LS TTL DATA 4-404 MC74F657A, B DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage All Outputs VOH Output HIGH Voltage B0-B7 PARITY, ERROR A0-A7 VOL Output LOW Voltage B0-B7 PARITY, ERROR 74 74 74 74 2.4 V 2.7 2.0 0.35 0.4 0.5 0.55 100 2.0 mA IIH Input HIGH Current B0-B7, PARITY EVEN/ODD T/R, OE EVEN/ODD IIL IIH +IOZH IIL +IOZL IOZH IOZL Input LOW Current T/R, OE Off-State Current HIGH Level Voltage Applied Off-State Current LOW Level Voltage Applied Off-State Output Current, High-Level Voltage Applied Off-State Output Current, Low-Level Voltage Applied Output Short Circuit Current (Note 2) ERROR -50 An Outputs PARITY, Bn Outputs, ERROR ICCH ICC Total Supply Current ICCL ICCZ -60 -100 90 106 98 -150 mA -225 135 150 145 mA VCC = MAX VCC = MAX, VOUT = 0 V A0-A7 B0-B7 PARITY -40 70 A -70 50 A VCC = MAX, VOUT = 0.5 V VCC = MAX, VOUT = 0.5 V VCC = MAX, VOUT = 2.7 V 1.0 20 40 -20 A 3.4 V V V A IOH = -3.0 mA -0.73 Parameter Min 2.0 0.8 -1.2 Typ Max Unit V V V Test Conditions Guaranteed Input HIGH Voltage Guaranteed Input LOW Voltage VCC = MIN, IIN = -18 mA VCC = 4.5 V VCC = 4.75 V VCC = 4.5 V IOH = -15 mA IOL = 24 mA IOL = 64 mA VCC = MIN T/R, OE, EVEN/ODD A0-A7 VCC = 0 V, VIN = 7.0 V VCC = 5.5 V, VIN = 5.5 V VCC = 5.5 V, VIN = 5.5 V VCC = MAX, VIN = 2.7 V A VCC = MAX, VIN = 0.5 V VCC = MAX, VOUT = 2.7 V IOS NOTES: 1. For conditions shown as MIN or MAX, use appropriate value specified under recommended operating conditions for the applicable device type. 2. Not more than one output should be shorted at one time, nor for more than 1 second. FAST AND LS TTL DATA 4-405 MC74F657A, B F657A AC ELECTRICAL CHARACTERISTICS 74F TA = +25C VCC = +5.0 V CL = 50 pF Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay An to Bn or Bn to An Propagation Delay An to PARITY Propagation Delay EVEN/ODD to PARITY, ERROR Propagation Delay Bn to ERROR Propagation Delay PARITY to ERROR Output Enable Time to HIGH or LOW Level Output Disable Time from HIGH or LOW Level Min 2.0 2.0 6.0 6.5 4.5 4.5 7.0 7.0 8.0 7.0 3.0 4.0 2.0 2.0 Typ Max 7.0 7.0 13 13 10.5 10.5 18 18 14 14 8.0 9.0 7.5 6.0 74F TA = 0C to +70C VCC = +5.0 V 10% CL = 50 pF Min 2.0 2.0 5.5 6.5 4.5 4.5 6.5 6.5 7.0 7.0 3.0 4.0 2.0 2.0 Max 7.5 7.5 14 14 11 11.5 19 19 15 15 9.0 10 8.0 6.5 Unit ns ns ns ns ns ns ns F657B AC ELECTRICAL CHARACTERISTICS 74F TA = +25C VCC = +5.0 V CL = 50 pF Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay An to Bn or Bn to An Propagation Delay An to PARITY Propagation Delay EVEN/ODD to PARITY, ERROR Propagation Delay Bn to ERROR Propagation Delay PARITY to ERROR Output Enable Time to HIGH or LOW Level Output Disable Time from HIGH or LOW Level Min 2.0 2.0 4.5 4.5 2.0 2.0 4.0 4.0 5.0 5.0 2.0 2.0 2.0 2.0 Typ Max 6.0 6.0 11.5 11.5 7.5 7.5 15 15 11 11 7.0 7.0 6.0 6.0 74F TA = 0C to +70C VCC = +5.0 V 10% CL = 50 pF Min 2.0 2.0 4.5 4.5 2.0 2.0 3.5 3.5 4.0 4.0 2.0 2.0 2.0 2.0 Max 6.5 6.5 13 13 8.5 8.5 16 16 12 12 8.0 8.0 6.5 6.5 Unit ns ns ns ns ns ns ns FAST AND LS TTL DATA 4-406 MC74F657A, B LOGIC DIAGRAM T/R OE A 0 B 0 A 1 B 1 A 2 B 2 A 3 B 3 A 4 B 4 A 5 B 5 A 6 B 6 A 7 B 7 EVEN/ODD PARITY ERROR FAST AND LS TTL DATA 4-407 -A24 13 Case 751E-03 DW Suffix 24-Pin Plastic SO-24 (WIDE) NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: MILLIMETER. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. 751E 01 AND 02 OBSOLETE, NEW STANDARD 751E 03. -B1 12 P 12 PL 0.25 (0.010) M B M G R X 45 -TD 24 PL 0.25 (0.010) M C K T B S SEATING PLANE M F J A S DIM A B C D F G J K M P R MILLIMETERS MIN MAX 15.25 7.40 2.35 0.35 0.41 15.54 7.60 2.65 0.49 0.90 INCHES MIN MAX 0.601 0.292 0.093 0.014 0.016 0.612 0.299 0.104 0.019 0.035 1.27 BSC 0.229 0.127 0 10.05 0.25 0.317 0.292 8 10.55 0.75 0.050 BSC 0.0090 0.0050 0 0.395 0.010 0.0125 0.0115 8 0.415 0.029 Case 758-01 J Suffix 24-Pin Ceramic Dual In-Line 24 13 NOTES: 1. DIMENSION L TO CENTER OF LEADS WHEN B 1 12 FORMED PARALLEL. 2. DIMENSIONING AND TOLERANCING PER ANSI Y14.5, 1973. -AF C L -TSEATING PLANE N G D 20 PL 0.25 (0.010) M K P J DIM A B C D F G J K L N P MILLIMETERS MIN MAX 31.50 7.24 3.68 0.38 1.14 32.64 7.75 4.44 0.53 1.57 INCHES MIN MAX 1.240 0.285 0.145 0.015 0.045 1.285 0.305 0.175 0.021 0.062 2.54 BSC 0.20 2.54 7.62 0.51 9.14 0.33 4.19 7.87 1.27 10.16 0.100 BSC 0.008 0.100 0.300 0.020 0.360 0.013 0.165 0.310 0.050 0.400 INSIDE OF LEADS T A M Case 724-03 N Suffix 24-Pin Plastic NOTES: -A24 1 13 1. 2. CHAMFERRED CONTOUR OPTIONAL. DIM L" TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSIONS AND TOLERANCES PER ANSI Y14.5M, 1982. -B12 4. CONTROLLING DIMENSION: INCH. C -TSEATING PLANE L K E G F D 24 PL 0.25 (0.010) M NOTE 1 N M J 24 PL 0.25 (0.010) T A M M T B M DIM A B C D E F G J K L M N MILLIMETERS MIN MAX 31.25 6.35 3.69 0.38 32.13 6.85 4.44 0.51 INCHES MIN MAX 1.230 0.250 0.145 0.015 1.265 0.270 0.175 0.020 1.27 BSC 1.02 1.52 0.050 BSC 0.040 0.060 2.54 BSC 0.18 2.80 0.30 3.55 0.100 BSC 0.007 0.110 0.012 0.140 7.62 BSC 0 0.51 15 1.01 0.300 BSC 0 0.020 15 0.040 FAST AND LS TTL DATA 4-408 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. Literature Distribution Centers: USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England. JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. FAST AND LS TTL DATA 4-409 |
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