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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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74F410 датащи(PDF) 1 Page - NXP Semiconductors |
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74F410 датащи(HTML) 1 Page - NXP Semiconductors |
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1 / 5 page  Philips Semiconductors FAST Products Product specification 74F410 Register stack – 16 ×4 RAM 3-State output register 1 January 8, 1990 853-1310 98498 FEATURES • Edge triggered output register • ypical access time of 19.5ns • Optimize for register stack operation • 3–state outputs • 18–pin package DESCRIPTION The 74F410 is a register oriented high speed 64–bit read/write memory organized as 16–words by 4–bits. An edge–triggered 4–bit output register allows new input data to be written while previous data is held. 3–state outputs are provided for maximum versatility. The 74F410 is fully compatible with all TTL families. TYPE TYPICAL ACCESS TIME TYPICAL SUPPLY CURRENT ( TOTAL) 74F410 19.5ns 45mA FUNCTIONAL DESCRIPTION Write operation – When the three control inputs, write enable (WE), chip select (CS), and clock (CP), are low the information on the data inputs (D0–D3) is written into the memory location selected by the address inputs (A0–A3). If the input data changes while WE, CS, and CP are low, the contents of the selected memory location follow these changes provided setup and hold time criteria are met. Read operation – When CS is low, WE is high, and CP goes from low–to–high, the contents of the memory location selected by the address inputs (A0–A3) are edge– triggered into the output register. When WE is low, CS is low, CP goes from low–to–high, the data at the data inputs is edge–triggered into the output register. The OE input controls the output buffers. When OE is high the four outputs (Q0–Q3) are in a high impedance or off state; when OE is low, the outputs are determined by the state of the output register. ORDERING INFORMATION ORDER CODE DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 18–pin plastic DIP (300mil) N74F410N INPUT AND OUTPUT LOADING AND FAN OUT TABLE PINS DESCRIPTION 74F (U.L.) HIGH/LOW LOAD VALUE HIGH/LOW D0 – D3 Data inputs 1.0/1.0 20 µA/0.6mA A0 – A3 Address inputs 1.0/1.0 20 µA/0.6mA CP Clock pulse input (active rising edge) 1.0/2.0 20 µA/1.2mA CS Chip select input (active low) 1.0/2.0 20 µA/1.2mA OE Output enable input (active low) 1.0/1.0 20 µA/0.6mA WE Write enable input (active low) 1.0/1.0 20 µA/0.6mA Q0 – Q3 Data outputs 150/40 3mA/24mA NOTE: One (1.0) FAST unit load is defined as: 20 µA in the high state and 0.6mA in the low state. PIN CONFIGURATION LOGIC SYMBOL IEC/IEEE SYMBOL 18 17 16 15 14 13 12 7 6 5 4 3 2 1 A1 Q1 Q2 D3 D2 D0 Q0 CS WE CP A0 A3 OE 3 4 5 6 11 10 D0 D2 D3 D1 Q0 Q1 Q2 Q3 16 14 12 10 15 13 11 11 8 A2 VCC VCC = Pin 18 GND = Pin 9 D1 17 A0 A1 A2 A3 CS WE CP OE 3 4 5 6 1 2 7 8 13 12 15 14 17 16 2 1 A1,2D A3 & 0 1 A 0 15 Q3 GND 10 9 7 8 & G1 G2 1C EN3 |
Аналогичный номер детали - 74F410 |
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Аналогичное описание - 74F410 |
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