7400 series TTL IC's: 74600...74699

74620

8-bit 3-state inverting bus transceiver.
Two enable pins control output enables, one active high and one active low.

    +---+--+---+
GAB |1  +--+ 20| VCC
 A1 |2       19| /GBA
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  620  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74621

8-bit open-collector noninverting bus transceiver.
Two enable pins control output enables, one active high and one active low.

    +---+--+---+
GAB |1  +--+ 20| VCC
 A1 |2       19| /GBA
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  621  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74623

8-bit 3-state noninverting bus transceiver.
Two enable pins control output enables, one active high and one active low.

    +---+--+---+
GAB |1  +--+ 20| VCC
 A1 |2       19| /GBA
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  623  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74638

8-bit 3-state/open-collector inverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+
DIR |1  +--+ 20| VCC
 A1 |2       19| /OE
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  638  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74639

8-bit 3-state/open-collector noninverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+
DIR |1  +--+ 20| VCC
 A1 |2       19| /OE
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  639  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74640

8-bit 3-state inverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+             +---+---*---+---+
DIR |1  +--+ 20| VCC         |/EN|DIR| A | B |
 A1 |2       19| /EN         +===+===*===+===+
 A2 |3       18| B1          | 1 | X | Z | Z |
 A3 |4       17| B2          | 0 | 0 |/B | Z |
 A4 |5  74   16| B3          | 0 | 1 | Z |/A |
 A5 |6  640  15| B4          +---+---*---+---+
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74641

8-bit 3-state noninverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+
DIR |1  +--+ 20| VCC
 A1 |2       19| /OE
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  641  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74642

8-bit open-collector inverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+
DIR |1  +--+ 20| VCC
 A1 |2       19| /OE
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  642  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74643

8-bit 3-state inverting/noninverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+             +---+---*---+---+
DIR |1  +--+ 20| VCC         |/EN|DIR| A | B |
 A1 |2       19| /EN         +===+===*===+===+
 A2 |3       18| B1          | 1 | X | Z | Z |
 A3 |4       17| B2          | 0 | 0 | B | Z |
 A4 |5  74   16| B3          | 0 | 1 | Z |/A |
 A5 |6  643  15| B4          +---+---*---+---+
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74645

8-bit 3-state noninverting bus transceiver.
Enable and direction pins control output enables.

    +---+--+---+
DIR |1  +--+ 20| VCC
 A1 |2       19| /OE
 A2 |3       18| B1
 A3 |4       17| B2
 A4 |5  74   16| B3
 A5 |6  645  15| B4
 A6 |7       14| B5
 A7 |8       13| B6
 A8 |9       12| B7
GND |10      11| B8
    +----------+

74646

8-bit 3-state noninverting registered transceiver.

    +---+--+---+
CAB |1  +--+ 24| VCC
SAB |2       23| CBA
DIR |3       22| SBA
 A1 |4       21| /OE
 A2 |5       20| B1
 A3 |6   74  19| B2
 A4 |7  646  18| B3
 A5 |8       17| B4
 A6 |9       16| B5
 A7 |10      15| B6
 A8 |11      14| B7
GND |12      13| B8
    +----------+

74648

8-bit 3-state inverting registered transceiver.

    +---+--+---+
CAB |1  +--+ 24| VCC
SAB |2       23| CBA
DIR |3       22| SBA
 A1 |4       21| /OE
 A2 |5       20| B1
 A3 |6   74  19| B2
 A4 |7  648  18| B3
 A5 |8       17| B4
 A6 |9       16| B5
 A7 |10      15| B6
 A8 |11      14| B7
GND |12      13| B8
    +----------+

74651

8-bit 3-state inverting registered transceiver.

    +---+--+---+
CAB |1  +--+ 24| VCC
SAB |2       23| CBA
GAB |3       22| SBA
 A1 |4       21| /GBA
 A2 |5       20| B1
 A3 |6   74  19| B2
 A4 |7  651  18| B3
 A5 |8       17| B4
 A6 |9       16| B5
 A7 |10      15| B6
 A8 |11      14| B7
GND |12      13| B8
    +----------+

74652

8-bit 3-state noninverting registered transceiver.

    +---+--+---+
CAB |1  +--+ 24| VCC
SAB |2       23| CBA
GAB |3       22| SBA
 A1 |4       21| /GBA
 A2 |5       20| B1
 A3 |6   74  19| B2
 A4 |7  652  18| B3
 A5 |8       17| B4
 A6 |9       16| B5
 A7 |10      15| B6
 A8 |11      14| B7
GND |12      13| B8
    +----------+

74653

8-bit 3-state/open-collector inverting registered transceiver.

    +---+--+---+
CAB |1  +--+ 24| VCC
SAB |2       23| CBA
GAB |3       22| SBA
 A1 |4       21| /GBA
 A2 |5       20| B1
 A3 |6   74  19| B2
 A4 |7  653  18| B3
 A5 |8       17| B4
 A6 |9       16| B5
 A7 |10      15| B6
 A8 |11      14| B7
GND |12      13| B8
    +----------+

74654

8-bit 3-state/open-collector noninverting registered transceiver.

    +---+--+---+
CAB |1  +--+ 24| VCC
SAB |2       23| CBA
GAB |3       22| SBA
 A1 |4       21| /GBA
 A2 |5       20| B1
 A3 |6   74  19| B2
 A4 |7  654  18| B3
 A5 |8       17| B4
 A6 |9       16| B5
 A7 |10      15| B6
 A8 |11      14| B7
GND |12      13| B8
    +----------+

74657

8-bit 3-state noninverting bus transceiver with parity generator/checker.
Enable and direction pins control output enables.

       +---+--+---+
   DIR |1  +--+ 24| /OE
    A1 |2       23| B1
    A2 |3       22| B2
    A3 |4       21| B3
    A4 |5       20| B4
    A5 |6   74  19| GND
   VCC |7  657  18| GND
    A6 |8       17| B5
    A7 |9       16| B6
    A8 |10      15| B7
  O//E |11      14| B8
/ERROR |12      13| PAR
       +----------+

74666

8-bit 3-state transparent latch with readback, set and reset.

      +---+--+---+
/OERB |1  +--+ 24| VCC
 /OE1 |2       23| /OE2
   D1 |3       22| Q1
   D2 |4       21| Q2
   D3 |5       20| Q3
   D4 |6   74  19| Q4
   D5 |7  666  18| Q5
   D6 |8       17| Q6
   D7 |9       16| Q7
   D8 |10      15| Q8
 /RST |11      14| /SET
  GND |12      13| LE
      +----------+

74669

4-bit synchronous binary up/down counter with load and ripple carry output.

     +---+--+---+
U//D |1  +--+ 16| VCC
 CLK |2       15| /RCO
  P0 |3       14| Q0
  P1 |4   74  13| Q1
  P2 |5  169  12| Q2
  P3 |6       11| Q3
/ENP |7       10| /ENT
 GND |8        9| /LOAD
     +----------+

74670

4x4-bit 3-state dual-port register file.

    +---+--+---+
 D2 |1  +--+ 16| VCC
 D3 |2       15| D1
 D4 |3       14| WA0
RA1 |4   74  13| WA1
RA0 |5  670  12| /WR
 Q4 |6       11| /RD
 Q3 |7       10| Q1
GND |8        9| Q2
    +----------+

74673

16-bit 3-state universal shift register with storage register, reset and 16-bit rotate function.

         +---+--+---+
     /CE |1  +--+ 24| VCC
    /CLK |2       23| P15
 R//W S0 |3       22| P14
/RRST S1 |4       21| P13
 L//S S2 |5       20| P12
  D0/Q15 |6   74  19| P11
      P0 |7  673  18| P10
      P1 |8       17| P9
      P2 |9       16| P8
      P3 |10      15| P7
      P4 |11      14| P6
     GND |12      13| P5
         +----------+

74674

16-bit 3-state universal shift register with 16-bit rotate function.

        +---+--+---+         +---+---+---*----------------------------+
    /CE |1  +--+ 24| VCC     |/CE| S1| S0| Function                   |
   /CLK |2       23| P15     +===+===+===*============================+
R//W S0 |3       22| P14     | 1 | X | X | hold, P0..15=Z             |
        |4       21| P13     | 0 | X | 0 | serial-in parallel out     |
L//S S1 |5       20| P12     | 0 | 0 | 1 | serial&parallel out rotate |
 D0/Q15 |6   74  19| P11     | 0 | 1 | 1 | parallel load              |
     P0 |7  674  18| P10     +---+---+---*----------------------------+
     P1 |8       17| P9
     P2 |9       16| P8
     P3 |10      15| P7
     P4 |11      14| P6
    GND |12      13| P5
        +----------+

74677

16-bit inverting address comparator with enable.

    +---+--+---+
 A1 |1  +--+ 24| VCC
 A2 |2       23| /EN
 A3 |3       22| Y
 A4 |4       21| P3
 A5 |5       20| P2
 A6 |6   74  19| P1
 A7 |7  677  18| P0
 A8 |8       17| A16
 A9 |9       16| A15
A10 |10      15| A14
A11 |11      14| A13
GND |12      13| A12
    +----------+

74682

8-bit inverting magnitude comparator with integrated 100k pull-up resistors.

     +---+--+---+
/A>B |1  +--+ 20| VCC
  A0 |2       19| A=B
  B0 |3       18| B7
  A1 |4       17| A7
  B1 |5   74  16| B6
  A2 |6  682  15| A6
  B2 |7       14| B5
  A3 |8       13| A5
  B3 |9       12| B4
 GND |10      11| A4
     +----------+

74684

8-bit inverting magnitude comparator.

     +---+--+---+
/A>B |1  +--+ 20| VCC
  A0 |2       19| A=B
  B0 |3       18| B7
  A1 |4       17| A7
  B1 |5   74  16| B6
  A2 |6  684  15| A6
  B2 |7       14| B5
  A3 |8       13| A5
  B3 |9       12| B4
 GND |10      11| A4
     +----------+

74686

8-bit inverting magnitude comparator with enable.

     +---+--+---+
/A>B |1  +--+ 24| VCC
/EN1 |2       23| /EN2
  A0 |3       22| /A=B
  B0 |4       21| B7
  A1 |5       20| A7
  B1 |6   74  19|
     |7  686  18| B6
  A2 |8       17| A6
  B2 |9       16| B5
  A3 |10      15| A5
  B3 |11      14| B4
 GND |12      13| A4
     +----------+

74687

8-bit open-collector inverting magnitude comparator with enable.

     +---+--+---+
/A>B |1  +--+ 24| VCC
/EN1 |2       23| /EN2
  A0 |3       22| /A=B
  B0 |4       21| B7
  A1 |5       20| A7
  B1 |6   74  19|
     |7  687  18| B6
  A2 |8       17| A6
  B2 |9       16| B5
  A3 |10      15| A5
  B3 |11      14| B4
 GND |12      13| A4
     +----------+

74688

8-bit inverting identity comparator with 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  688  15| A6
 B2 |7       14| B5
 A3 |8       13| A5
 B3 |9       12| B4
GND |10      11| A4
    +----------+

74689

8-bit open-collector inverting identity comparator with 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  689  15| A6
 B2 |7       14| B5
 A3 |8       13| A5
 B3 |9       12| B4
GND |10      11| A4
    +----------+

74691

4-bit 3-state synchronous binary counter with output registers, asynchronous reset and ripple carry output. Multiplexed register/counter outputs.

      +---+--+---+
/CRST |1  +--+ 20| VCC
 CCLK |2       19| RCO
   P0 |3       18| Q0
   P1 |4       17| Q1
   P2 |5   74  16| Q2
   P3 |6  691  15| Q3
  ENP |7       14| ENT
/RRST |8       13| /LOAD
 RCLK |9       12| /OE
  GND |10      11| R//C
      +----------+

74697

4-bit 3-state synchronous binary up/down counter with output registers, asynchronous reset and ripple carry output. Multiplexed register/counter outputs.

      +---+--+---+
 U//D |1  +--+ 20| VCC
 CCLK |2       19| RCO
   P0 |3       18| Q0
   P1 |4       17| Q1
   P2 |5   74  16| Q2
   P3 |6  697  15| Q3
  ENP |7       14| ENT
/CRST |8       13| /LOAD
 RCLK |9       12| /OE
  GND |10      11| R//C
      +----------+

74699

4-bit 3-state synchronous binary up/down counter with output registers, reset and ripple carry output. Multiplexed register/counter outputs.

      +---+--+---+
 U//D |1  +--+ 20| VCC
 CCLK |2       19| RCO
   P0 |3       18| Q0
   P1 |4       17| Q1
   P2 |5   74  16| Q2
   P3 |6  699  15| Q3
  ENP |7       14| ENT
/CRST |8       13| /LOAD
 RCLK |9       12| /OE
  GND |10      11| R//C
      +----------+

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