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MC14597B Dataheets PDF



Part Number MC14597B
Manufacturers Motorola
Logo Motorola
Description (MC14597B / MC14598B) 8-Bit Bus-Compatible Latches
Datasheet MC14597B DatasheetMC14597B Datasheet (PDF)

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC14599 See Page 6-174 8-Bit Bus-Compatible Latches The MC14597B and MC14598B are 8–bit latches, one addressed with an internal counter and the other addressed with an external binary address. The 8 latch–outputs are high drive, three–state and bus line compatible. The drive capability allows direct applications with MPU systems such as the Motorola 6800 family. With MC14597B, a 3–bit address counter (clocked on the falling edge of Increment) selects the .

  MC14597B   MC14597B



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MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC14599 See Page 6-174 8-Bit Bus-Compatible Latches The MC14597B and MC14598B are 8–bit latches, one addressed with an internal counter and the other addressed with an external binary address. The 8 latch–outputs are high drive, three–state and bus line compatible. The drive capability allows direct applications with MPU systems such as the Motorola 6800 family. With MC14597B, a 3–bit address counter (clocked on the falling edge of Increment) selects the appropriate latch. The latches of the MC14598B are accessed via the Address pins, A0, A1, and A2. A Full Flag is provided on the MC14597B to indicate the position of the Address counter. All 8 outputs from the latches are available in parallel when Enable is in the low state. Data is entered into a selected latch from the Data pin when the Strobe is high. Master reset is available on both parts. • Serial Data Input • Three–State Bus Compatible Parallel Outputs • Three–State Control Pin (Enable) TTL Compatible Input • Open Drain Full Flag (Multiple Latch Wire–O Ring) • Master Reset • Level Shifting Inputs on All Except Enable • Diode Protection — All Inputs • Supply Voltage Range — 3.0 Vdc to 18 Vdc • Capable of Driving TTL Over Rated Temperature Range With Fanout as Follows: 1 TTL Load 4 LSTTL Loads BLOCK DIAGRAMS 2 RESET LOGIC 4 ENABLE MC14597B MC14598B L SUFFIX CERAMIC CASE 620 P SUFFIX PLASTIC CASE 648 D SUFFIX SOIC CASE 751B ORDERING INFORMATION MC14597BCP MC14597BCL MC14597BDW Plastic Ceramic SOIC TA = – 55° to 125°C for all packages. L SUFFIX CERAMIC CASE 726 MC14597B RESET D0 RESET 3 6 8 LATCHES THREE STATE OUTPUT BUFFERS 1 15 14 13 12 11 10 9 D0 D1 D2 D3 D4 D5 D6 D7 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VDD D1 D2 D3 D4 D5 D6 D7 D0 RESET P SUFFIX PLASTIC CASE 707 DATA STROBE 3–BIT ADDRESS COUNTER 7 INCREMENT VDD = 16 VSS = 8 FULL LOGIC 5 FULL ADDRESS DECODER DATA ENABLE FULL STROBE INCREMENT VSS ORDERING INFORMATION MC14598BCP MC14598BCL Plastic Ceramic TA = – 55° to 125°C for all packages. 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 VDD D1 D2 D3 D4 D5 D6 D7 A2 MC14598B ENABLE 4 RESET DATA STROBE A0 7 A1 8 ADDRESS A2 10 DECODER VDD = 18 VSS = 9 2 3 6 8 LATCHES 1 17 THREE 16 STATE 15 OUTPUT 14 BUFFERS 13 12 11 D0 D1 D2 D3 D4 D5 D6 D7 OUTPUT TRUTH TABLE Enable 1 0 Outputs High Impedance Dn DATA ENABLE NC STROBE A0 A1 VSS Dn = State of nth latch NC = NO CONNECTION REV 3 1/94 ©MOTOROLA Motorola, Inc. 1995 CMOS LOGIC DATA MC14597B MC14598B 1 ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ MAXIMUM RATINGS* (Voltages Referenced to VSS) Symbol VDD Vin Vin Vout Iin, lout PD Tstg TL Parameter DC Supply Voltage Value Unit V V V V mA mW – 0.5 to + 18.0 Input Voltage, Enable (DC or Transient) Input Voltage, All other Inputs (DC or Transient) Output Voltage (DC or Transient) Input or Output Current (DC or Transient), per Pin Power Dissipation, per Package† Storage Temperature Lead Temperatur.


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