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MC14598BCP 데이터시트(PDF) 1 Page - Motorola, Inc |
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MC14598BCP 데이터시트(HTML) 1 Page - Motorola, Inc |
1 / 9 page MOTOROLA CMOS LOGIC DATA 1 MC14597B MC14598B 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 MC14598B MC14597B Enable Outputs 1 High Impedance 0 Dn Dn = State of nth latch OUTPUT TRUTH TABLE 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 D4 D3 D2 D1 VDD D7 D6 D5 ENABLE DATA RESET D0 VSS INCREMENT STROBE FULL NC DATA RESET D0 VSS A1 A0 STROBE ENABLE D3 D2 D1 VDD A2 D7 D6 D5 D4 14 15 16 17 18 10 11 12 13 5 4 3 2 1 9 8 7 6 NC = NO CONNECTION THREE STATE OUTPUT BUFFERS 8 LATCHES ADDRESS DECODER 3–BIT ADDRESS COUNTER FULL LOGIC RESET LOGIC RESET 2 4 ENABLE 1 15 14 13 12 11 10 9 D0 D1 D2 D3 D4 D5 D6 D7 DATA 3 STROBE 6 INCREMENT 5 FULL VDD = 16 VSS = 8 7 1 17 16 15 14 13 12 11 D0 D1 D2 D3 D4 D5 D6 D7 ENABLE 4 THREE STATE OUTPUT BUFFERS 8 LATCHES ADDRESS DECODER VDD = 18 VSS = 9 2 3 6 RESET DATA STROBE A0 A1 A2 7 8 10 MOTOROLA SEMICONDUCTOR TECHNICAL DATA © Motorola, Inc. 1995 REV 3 1/94 MC14599 See Page 6-174 MC14597B MC14598B L SUFFIX CERAMIC CASE 620 ORDERING INFORMATION MC14597BCP Plastic MC14597BCL Ceramic MC14597BDW SOIC TA = – 55° to 125°C for all packages. P SUFFIX PLASTIC CASE 648 D SUFFIX SOIC CASE 751B L SUFFIX CERAMIC CASE 726 P SUFFIX PLASTIC CASE 707 ORDERING INFORMATION MC14598BCP Plastic MC14598BCL Ceramic TA = – 55° to 125°C for all packages. |
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