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74F350 Datasheet(PDF) 1 Page - NXP Semiconductors |
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74F350 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 6 page Philips Semiconductors FAST Products Product specification 74F350 4-bit shifter 1 March 20, 1989 853–0368 96093 FEATURES • Shifts 4 bits of data to 0, 1, 2, 3 places under control of two select lines • 3-State outputs for bus organized systems DESCRIPTION The 74F350 is a combination logic circuit that shifts a 4-bit word from 0 to 3 places. No clocking is required as with shift registers. The 74F350 can be used to shift any number of bits any number of places up or down by suitable interconnection. Shifting can be: 1. Logical — with logic zeros filled in at either end of the shifting field. 2. Arithmetic — where the sign bit is extended during a shift down. 3. End around — where the data word forms a continuous loop. The 3-State outputs are useful for bus interface applications or expansion to a larger number of shift positions in end around shifting. The active Low Output Enable (OE) controls the state of the outputs. The outputs are in the high impedance “off” state when OE is High, and they are active when OE is Low. PIN CONFIGURATION 16 15 14 13 12 11 10 7 6 5 4 3 2 1 I3 VCC Y2 Y3 S0 OE Y0 Y1 I–3 I–2 I2 I–1 I0 I1 9 8 GND S1 SF00205 ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 16-pin plastic DIP N74F350N 16-pin plastic SO N74F350D TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F350 5.2ns 24mA INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW I–n, In Data inputs 1.0/2.0 20 µA/1.2mA S0, S1 Select inputs (active Low) 1.0/2.0 20 µA/1.2mA OE Output Enable input (active Low) 1.0/2.0 20 µA/1.2mA Y0 – Y3 Data outputs 150/40 3.0mA/24mA NOTE: One (1.0) FAST unit load is defined as: 20 µA in the High state and 0.6mA in the Low state. LOGIC SYMBOL VCC = Pin 16 GND = Pin 8 SF00206 9 10 13 S1 S0 OE 1 2 3 4 5 6 7 I–3 I–2 I–1 I0 I1 I2 I3 Y0 Y1 Y2 Y3 15 14 12 11 IEC/IEEE SYMBOL SF00207 0 9 10 D MUX 13 G 0 3 [SHIFTER] 1 EN ≥1 15 10 3 11 2 12 1 13 0 ≥1 14 11 3 12 2 13 1 14 0 ≥1 12 12 3 13 2 14 1 15 0 ≥1 11 13 3 14 2 15 1 16 0 Z10 1 Z11 2 Z12 3 Z13 4 Z14 5 Z15 6 Z16 7 |
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