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SN74ALS233BN Datasheet(PDF) 5 Page - Texas Instruments |
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SN74ALS233BN Datasheet(HTML) 5 Page - Texas Instruments |
5 / 8 page SN74ALS233B 16 × 5 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORY SCAS253B – MARCH 1990 – REVISED APRIL 1998 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 2) MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V IOH High level output current Q outputs –1.6 mA IOH High-level output current Status flags –0.4 mA IOL Low level output current Q outputs 24 mA IOL Low-level output current Status flags 8 mA TA Operating free-air temperature 0 70 °C NOTE 2: To ensure proper operation of this high-speed FIFO device, it is necessary to provide a clean signal to the LDCK and UNCK clock inputs. Any excessive noise or glitching on the clock inputs that violates the VIL, VIH, or minimum pulse duration limits can cause a false clock or improper operation of the internal read and write pointers. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = –18 mA –1.2 V VOH Q outputs VCC = 4.5 V, IOH = –2.6 mA 2.4 3.2 V VOH Status flags VCC = 4.5 V to 5.5 V, IOH = –0.4 mA VCC–2 V Q outputs VCC =4 5V IOL = 12 mA 0.25 0.4 VOL Q outputs VCC = 4.5 V IOL = 24 mA 0.35 0.5 V VOL Status flags VCC =4 5V IOL = 4 mA 0.25 0.4 V Status flags VCC = 4.5 V IOL = 8 mA 0.35 0.5 IOZH VCC = 5.5 V, VO = 2.7 V 20 µA IOZL VCC = 5.5 V, VO = 0.4 V –20 µA II VCC = 5.5 V, VI = 7 V 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 µA IIL VCC = 5.5 V, VI = 0.4 V –0.2 mA IO‡ VCC = 5.5 V, VO = 2.25 V –30 –112 mA ICC VCC = 5.5 V 88 133 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one-half of the true short-circuit output current, IOS. |
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