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74ACT821
54AC 74AC821 54ACT 74ACT821 10-Bit D Flip-Flop with TRI-STATE Outputs General Description Features The ’AC ’ACT821 is a 10-bit D flip-flop with TRI-STATE outputs arranged in a broadside pinout The ’AC ’ACT821 is functionally identical to the AM29821 Y Y Y Y Y TRI-STATE outputs for bus interfacing Noninverting outputs Outputs source sink 24 mA ’ACT821 has TTL-compatible inputs Standard Military Drawing (SMD) ’ACT821 5962-88705 Logic Symbols Connection Diagrams Pin Assignment for DIP Flatpak and SOIC IEEE IEC TL F 10139–1 TL F 10139 – 2 TL F 10139 – 3 Pin Names D0 – D9 O0 – O9 OE CP Description Data Inputs Data Outputs Output Enable Input Clock Input Pin Assignment for LCC TL F 10139 – 4 TRI-STATE is a registered trademark of National Semiconductor Corporation FACTTM is a trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 10139 RRD-B30M75 Printed in U S A 54AC 74AC821 54ACT 74ACT821 10-Bit D Flip-Flop with TRI-STATE Outputs March 1993 Absolute Maximum Rating (Note 1) Recommended Operating Conditions If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage (VCC) DC Input Diode Current (IIK) VI e b0 5V VI e VCC a 0 5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO e b0 5V VO e VCC a 0 5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (TJ) CDIP PDIP Supply Voltage (VCC) ’AC ’ACT Input Voltage (VI) b 0 5V to a 7 0V b 20 mA a 20 mA 2 0V to 6 0V 4 5V to 5 5V 0V to VCC 0V to VCC Output Voltage (VO) Operating Temperature (TA) 74AC ACT 54AC ACT b 0 5V to VCC a 0 5V b 20 mA a 20 mA b 40 C to a 85 C b 55 C to a 125 C Minimum Input Edge Rate (DV Dt) ’AC Devices VIN from 30% to 70% of VCC VCC 3 3V 4 5V 5 5V Minimum Input Edge Rate (DV Dt) ’ACT Devices VIN from 0 8V to 2 0V VCC 4 5V 5 5V b 0 5V to VCC a 0 5V g 50 mA g 50 mA b 65 C to a 150 C 125 mV ns 125 mV ns 175 C 140 C Note 1 Absolute maximum ratings are those values beyond which damage to the device may occur The databook specifications should be met without exception to ensure that the system design is reliable over its power supply temperature and output input loading variables National does not recommend operation of FACT TM circuits outside databook specifications DC Characteristics for ’AC Family Devices 74AC Symbol Parameter VCC (V) 54AC 74AC TA e a 25 C TA e b 55 C to a 125 C TA e b 40 C to a 85 C Typ VIH Units Conditions Guaranteed Limits VOH 30 45 55 15 2 25 2 75 21 3 15 3 85 21 3 15 3 85 21 3 15 3 85 V VOUT e 0 1V or VCC b 0 1V Maximum Low Level Input Voltage 30 45 55 15 2 25 2 75 09 1 35 1 65 09 1 35 1 65 09 1 35 1 65 V VOUT e 0 1V or VCC b 0 1V Minimum High Level Output Voltage 30 45 55 2 99 4 49 5 49 29 44 54 29 44 54 29 44 54 V 2 56 3 86 4 86 24 37 47 2 46 3 76 4 76 V 01 01 01 01 01 01 01 01 01 V 30 45 55 VIL Minimum High Level Input Voltage 0 36 0 36 0 36 0 50 0 50 0 50 0 44 0 44 0 44 V 55 g0 1 g1 0 g1 0 mA 30 45 55 VOL IIN Maximum Low Level Output Voltage Maximum Input Leakage Current 30 45 55 0 002 0 001 0 001 All outputs loaded thresholds on input associated with output under test 3 IOUT e b50 mA VIN e VIL or VIH b 12 mA b 24 mA IOH b 24 mA IOUT e 50 mA VIN e VIL or VIH 12 mA 24 mA IOL 24 mA VI e VCC GND
NS
National Semiconductor Corporation 日本ではナショセミと略称されていたが2011年9月23日、米TI社に買収され、同社のシリコンバレー部門となった。
TI
Texas Instruments Incorporated
U.S.A
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