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74HCT193D 데이터시트(PDF) 2 Page - NXP Semiconductors |
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2 / 29 page 74HC_HCT193_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 23 May 2007 2 of 29 NXP Semiconductors 74HC193; 74HCT193 Presettable synchronous 4-bit binary up/down counter Q3) LOW. If one of the clock inputs is LOW during and after a reset or load operation, the next LOW-to-HIGH transition of that clock will be interpreted as a legitimate signal and will be counted. 2. Features I Synchronous reversible 4-bit binary counting I Asynchronous parallel load I Asynchronous reset I Expandable without external logic 3. Ordering information 4. Functional diagram Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC193D −40 °C to +125 °C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 74HC193DB −40 °C to +125 °C SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1 74HC193N −40 °C to +125 °C DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4 74HC193PW −40 °C to +125 °C TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 74HCT193D −40 °C to +125 °C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 74HCT193DB −40 °C to +125 °C SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1 74HCT193N −40 °C to +125 °C DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4 74HCT193PW −40 °C to +125 °C TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 Fig 1. Functional diagram Fig 2. Logic symbol 001aag405 FLIP-FLOPS COUNTER PL 11 CPU 5 TCD 13 TCU 12 Q0 3267 151109 Q1 Q2 Q3 D0 D1 D2 D3 CPD 4 MR 14 001aag409 MR Q0 Q1 Q2 Q3 PL D0 D1 D2 D3 14 3267 11 151109 4 CPD TCD TCU 5 13 12 CPU |
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