7400 series TTL IC's: 7450...7499

7400 series TTL IC's: 74500...74599

74519

8-bit open-collector noninverting identity comparator with enable.

    +---+--+---+
/OE |1  +--+ 20| VCC
 A0 |2       19| A=B
 B0 |3       18| B7
 A1 |4       17| A7
 B1 |5   74  16| B6
 A2 |6  519  15| A6
 B2 |7       14| B5
 A3 |8       13| A5
 B3 |9       12| B4
GND |10      11| A4
    +----------+

74520

8-bit inverting identity comparator with itegrated 20k pull-up resistors and enable.

    +---+--+---+
/EN |1  +--+ 20| VCC
 A0 |2       19| A=B
 B0 |3       18| B7
 A1 |4       17| A7
 B1 |5   74  16| B6
 A2 |6  520  15| A6
 B2 |7       14| B5
 A3 |8       13| A5
 B3 |9       12| B4
GND |10      11| A4
    +----------+

74521

8-bit inverting identity comparator with enable.

    +---+--+---+
/OE |1  +--+ 20| VCC
 A0 |2       19| A=B
 B0 |3       18| B7
 A1 |4       17| A7
 B1 |5   74  16| B6
 A2 |6  521  15| A6
 B2 |7       14| B5
 A3 |8       13| A5
 B3 |9       12| B4
GND |10      11| A4
    +----------+

74533

8-bit 3-state inverting transparent latch.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE| LE| D | Q |
/Q1 |2       19| /Q8         +===+===+===*===+
 D1 |3       18| D8          | 1 | X | X | Z |
 D2 |4       17| D7          | 0 | 0 | X | - |
/Q2 |5   74  16| /Q7         | 0 | 1 | 0 | 0 |
/Q3 |6  533  15| /Q6         | 0 | 1 | 1 | 1 |
 D3 |7       14| D6          +---+---+---*---+
 D4 |8       13| D5
/Q4 |9       12| /Q5
GND |10      11| LE
    +----------+

74534

8-bit 3-state inverting D flip-flop.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE|CLK| D |/Q |
/Q1 |2       19| /Q8         +===+===+===*===+
 D1 |3       18| D8          | 1 | X | X | Z |
 D2 |4       17| D7          | 0 | / | 0 | 1 |
/Q2 |5   74  16| /Q7         | 0 | / | 1 | 0 |
/Q3 |6  534  15| /Q6         | 0 |!/ | X | - |
 D3 |7       14| D6          +---+---+---*---+
 D4 |8       13| D5
/Q4 |9       12| /Q5
GND |10      11| CLK
    +----------+

74540

8-bit 3-state inverting buffer/line driver.

     +---+--+---+
/OE1 |1  +--+ 20| VCC
  A1 |2       19| /OE2
  A2 |3       18| /Y1
  A3 |4       17| /Y2
  A4 |5   74  16| /Y3
  A5 |6  540  15| /Y4
  A6 |7       14| /Y5
  A7 |8       13| /Y6
  A8 |9       12| /Y7
 GND |10      11| /Y8
     +----------+

74541

8-bit 3-state noninverting buffer/line driver.

     +---+--+---+
/OE1 |1  +--+ 20| VCC
  A1 |2       19| /OE2
  A2 |3       18| Y1
  A3 |4       17| Y2
  A4 |5   74  16| Y3
  A5 |6  541  15| Y4
  A6 |7       14| Y5
  A7 |8       13| Y6
  A8 |9       12| Y7
 GND |10      11| Y8
     +----------+

74543

8-bit 3-state noninverting registered transceiver.

      +---+--+---+
/LEBA |1  +--+ 24| VCC
 /GBA |2       23| /CEBA
   A1 |3       22| B1
   A2 |4       21| B2
   A3 |5       20| B3
   A4 |6   74  19| B4
   A5 |7  543  18| B5
   A6 |8       17| B6
   A7 |9       16| B7
   A8 |10      15| B8
/CEAB |11      14| /LEAB
  GND |12      13| /GAB
      +----------+

74544

8-bit 3-state inverting registered transceiver.

      +---+--+---+
/LEBA |1  +--+ 24| VCC
 /GBA |2       23| /CEBA
   A1 |3       22| B1
   A2 |4       21| B2
   A3 |5       20| B3
   A4 |6   74  19| B4
   A5 |7  544  18| B5
   A6 |8       17| B6
   A7 |9       16| B7
   A8 |10      15| B8
/CEAB |11      14| /LEAB
  GND |12      13| /GAB
      +----------+

74561

4-bit 3-state synchronous binary counter with sync/async load, sync/async reset, and ripple/clocked carry output.

      +---+--+---+
 /ALD |1  +--+ 20| VCC
  CLK |2       19| RCO
   P0 |3       18| CCO
   P1 |4       17| /OE
   P2 |5   74  16| Q0
   P3 |6  561  15| Q1
  ENP |7       14| Q2
/ARST |8       13| Q3
/SRST |9       12| ENT
  GND |10      11| /SLD
      +----------+

74563

8-bit 3-state inverting transparent latch.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE| LE| D |/Q |
 D1 |2       19| /Q1         +===+===+===*===+
 D2 |3       18| /Q2         | 1 | X | X | Z |
 D3 |4       17| /Q3         | 0 | 0 | X | - |
 D4 |5   74  16| /Q4         | 0 | 1 | 0 | 1 |
 D5 |6  563  15| /Q5         | 0 | 1 | 1 | 0 |
 D6 |7       14| /Q6         +---+---+---*---+
 D7 |8       13| /Q7
 D8 |9       12| /Q8
GND |10      11| LE
    +----------+

74564

8-bit 3-state inverting D flip-flop.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE|CLK| D |/Q |
 D1 |2       19| /Q1         +===+===+===*===+
 D2 |3       18| /Q2         | 1 | X | X | Z |
 D3 |4       17| /Q3         | 0 | / | 0 | 1 |
 D4 |5   74  16| /Q4         | 0 | / | 1 | 0 |
 D5 |6  564  15| /Q5         | 0 |!/ | X | - |
 D6 |7       14| /Q6         +---+---+---*---+
 D7 |8       13| /Q7
 D8 |9       12| /Q8
GND |10      11| CLK
    +----------+

74568

4-bit 3-state synchronous decade up/down counter with load, sync/async reset, and ripple/clocked carry output.

      +---+--+---+
 U//D |1  +--+ 20| VCC
  CLK |2       19| /RCO
   P0 |3       18| /CCO
   P1 |4       17| /OE
   P2 |5   74  16| Q0
   P3 |6  568  15| Q1
 /ENP |7       14| Q2
/ARST |8       13| Q3
/SRST |9       12| /ENT
  GND |10      11| /LOAD
      +----------+

74569

4-bit 3-state synchronous binary up/down counter with load, sync/async reset, and ripple/clocked carry output.

      +---+--+---+
 U//D |1  +--+ 20| VCC
  CLK |2       19| /RCO
   P0 |3       18| /CCO
   P1 |4       17| /OE
   P2 |5   74  16| Q0
   P3 |6  569  15| Q1
 /ENP |7       14| Q2
/ARST |8       13| Q3
/SRST |9       12| /ENT
  GND |10      11| /LOAD
      +----------+

74573

8-bit 3-state transparent latch.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE| LE| D |/Q |
 D1 |2       19| Q1          +===+===+===*===+
 D2 |3       18| Q2          | 1 | X | X | Z |
 D3 |4       17| Q3          | 0 | 0 | X | - |
 D4 |5   74  16| Q4          | 0 | 1 | 0 | 0 |
 D5 |6  573  15| Q5          | 0 | 1 | 1 | 1 |
 D6 |7       14| Q6          +---+---+---*---+
 D7 |8       13| Q7
 D8 |9       12| Q8
GND |10      11| LE
    +----------+

74574

8-bit 3-state D flip-flop.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE|CLK| D | Q |
 D1 |2       19| Q1          +===+===+===*===+
 D2 |3       18| Q2          | 1 | X | X | Z |
 D3 |4       17| Q3          | 0 | / | 0 | 0 |
 D4 |5   74  16| Q4          | 0 | / | 1 | 1 |
 D5 |6  574  15| Q5          | 0 |!/ | X | - |
 D6 |7       14| Q6          +---+---+---*---+
 D7 |8       13| Q7
 D8 |9       12| Q8
GND |10      11| CLK
    +----------+

74575

8-bit 3-state D flip-flop with reset.

     +---+--+---+            +----+---+---+---*---+
/RST |1  +--+ 24| VCC        |/RST|/OE|CLK| D | Q |
 /OE |2       23|            +====+===+===+===*===+
  D1 |3       22| Q1         |  0 | 1 | X | X | Z |
  D2 |4       21| Q2         |  X | 0 | X | X | 0 |
  D3 |5       20| Q3         |  1 | 0 | / | 0 | 0 |
  D4 |6   74  19| Q4         |  1 | 0 | / | 1 | 1 |
  D5 |7  575  18| Q5         |  1 | 0 |!/ | X | - |
  D6 |8       17| Q6         +----+---+---+---*---+
  D7 |9       16| Q7
  D8 |10      15| Q8
     |11      14| CLK
 GND |12      13|
     +----------+

74576

8-bit 3-state inverting D flip-flop.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE|CLK| D |/Q |
 D1 |2       19| /Q1         +===+===+===*===+
 D2 |3       18| /Q2         | 1 | X | X | Z |
 D3 |4       17| /Q3         | 0 | / | 0 | 1 |
 D4 |5   74  16| /Q4         | 0 | / | 1 | 0 |
 D5 |6  576  15| /Q5         | 0 |!/ | X | - |
 D6 |7       14| /Q6         +---+---+---*---+
 D7 |8       13| /Q7
 D8 |9       12| /Q8
GND |10      11| CLK
    +----------+

74577

8-bit 3-state inverting D flip-flop with reset.

     +---+--+---+            +----+---+---+---*---+
/RST |1  +--+ 24| VCC        |/RST|/OE|CLK| D |/Q |
 /OE |2       23|            +====+===+===+===*===+
  D1 |3       22| /Q1        |  0 | 1 | X | X | Z |
  D2 |4       21| /Q2        |  X | 0 | X | X | 1 |
  D3 |5       20| /Q3        |  1 | 0 | / | 0 | 1 |
  D4 |6   74  19| /Q4        |  1 | 0 | / | 1 | 0 |
  D5 |7  577  18| /Q5        |  1 | 0 |!/ | X | - |
  D6 |8       17| /Q6        +----+---+---+---*---+
  D7 |9       16| /Q7
  D8 |10      15| /Q8
     |11      14| CLK
 GND |12      13|
     +----------+

74580

8-bit 3-state inverting transparent latch.

    +---+--+---+             +---+---+---*---+
/OE |1  +--+ 20| VCC         |/OE| LE| D |/Q |
 D1 |2       19| /Q1         +===+===+===*===+
 D2 |3       18| /Q2         | 1 | X | X | Z |
 D3 |4       17| /Q3         | 0 | 0 | X | - |
 D4 |5   74  16| /Q4         | 0 | 1 | 0 | 1 |
 D5 |6  580  15| /Q5         | 0 | 1 | 1 | 0 |
 D6 |7       14| /Q6         +---+---+---*---+
 D7 |8       13| /Q7
 D8 |9       12| /Q8
GND |10      11| LE
    +----------+

74589

8-bit 3-state parallel-in serial-out shift register with input registers.
Independent clocks for shift and storage registers.

    +---+--+---+
 P1 |1  +--+ 16| VCC
 P2 |2       15| P0
 P3 |3       14| D
 P4 |4   74  13| SH//LD
 P5 |5  589  12| RCLK
 P6 |6       11| SCLK
 P7 |7       10| /OE
GND |8        9| Q7
    +----------+

74590

8-bit 3-state synchronous binary counter with reset and output registers.
Separate clocks for both counter and storage register, ripple carry output.

    +---+--+---+
 Q1 |1  +--+ 16| VCC
 Q2 |2       15| Q0
 Q3 |3       14| /OE
 Q4 |4   74  13| RCLK
 Q5 |5  590  12| /CLKEN
 Q6 |6       11| CCLK
 Q7 |7       10| /CRST
GND |8        9| /RCO
    +----------+

74592

8-bit synchronous binary counter with input registers.
Separate clocks for counter and input register. Counter outputs only internally connected but ripple carry and clock outputs available.

    +---+--+---+
 P1 |1  +--+ 16| VCC
 P2 |2       15| P0
 P3 |3       14| /CLOAD
 P4 |4   74  13| RCLK
 P5 |5  592  12| /CLKEN
 P6 |6       11| CCLK
 P7 |7       10| /CRST
GND |8        9| /RCO
    +----------+

74593

8-bit 3-state synchronous binary counter with input registers and ripple carry and clock outputs. Separate clocks for counter and input registers.

     +---+--+---+
  P0 |1  +--+ 20| VCC
  P1 |2       19| OE
  P2 |3       18| /OE
  P3 |4       17| /RCLKEN
  P4 |5   74  16| RCLK
  P5 |6  593  15| CLKEN
  P6 |7       14| /CLKEN
  P7 |8       13| CCLK
/CLD |9       12| /CRST
 GND |10      11| /RCO
     +----------+

74594

8-bit serial-in parallel-out shift register with output registers and two asynchronous resets. Independent clocks and resets for shift and storage registers.

    +---+--+---+
 Y1 |1  +--+ 16| VCC
 Y2 |2       15| Y0
 Y3 |3       14| A
 Y4 |4   74  13| /RRST
 Y5 |5  594  12| RCLK
 Y6 |6       11| SCLK
 Y7 |7       10| /SRST
GND |8        9| Q7
    +----------+

74595

8-bit 3-state serial-in parallel-out shift register with output registers and asynchronous reset. Independent clocks for shift and storage registers.

    +---+--+---+
 Y1 |1  +--+ 16| VCC
 Y2 |2       15| Y0
 Y3 |3       14| A
 Y4 |4   74  13| /OE
 Y5 |5  595  12| RCLK
 Y6 |6       11| SCLK
 Y7 |7       10| /RST
GND |8        9| Q7
    +----------+

74596

8-bit open-collector serial-in parallel-out shift register with output registers and asynchronous reset. Independent clocks for shift and storage registers.

    +---+--+---+
 Y1 |1  +--+ 16| VCC
 Y2 |2       15| Y0
 Y3 |3       14| D
 Y4 |4   74  13| /OE
 Y5 |5  596  12| RCLK
 Y6 |6       11| SCLK
 Y7 |7       10| /RST
GND |8        9| Q7
    +----------+

74597

8-bit parallel-in serial-out shift register with input registers and asynchronous reset. Independent clocks for shift and storage registers.

    +---+--+---+
 P1 |1  +--+ 16| VCC
 P2 |2       15| P0
 P3 |3       14| D
 P4 |4   74  13| SH//LD
 P5 |5  597  12| RCLK
 P6 |6       11| SCLK
 P7 |7       10| /RST
GND |8        9| Q7
    +----------+

74598

8-bit 3-state shift register with input registers, asynchronous reset and selectable serial input. Independent clocks for shift and storage registers.

       +---+--+---+
    P0 |1  +--+ 20| VCC
    P1 |2       19| S
    P2 |3       18| D
    P3 |4       17| E
    P4 |5   74  16| /OE
    P5 |6  598  15| RCLK
    P6 |7       14| /SCE
    P7 |8       13| SCLK
SH//LD |9       12| /RST
   GND |10      11| Q7
       +----------+