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74LS157 Quad 2-input Multiplexer IC (74157 IC) DIP-16 Package
Original price was: ₹24.00.₹19.00Current price is: ₹19.00.
74LS73 Dual JK Flip-Flop with Clear IC (7473 IC) DIP-14 Package
Original price was: ₹69.00.₹64.00Current price is: ₹64.00.
74LS189 64-Bit RAM with 3-State Output IC (74189 IC) DIP-16 Package
Original price was: ₹130.00.₹122.00Current price is: ₹122.00.
Description
The 74LS189 is a high-speed 64-bit RAM organized as a 16- word by 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are 3-state and are in the high impedance state whenever the Chip Select (CS) input is HIGH. The outputs are active only in the Read mode and the output data is the complement of the stored data.
Features:-
• 3-State Outputs For Data Bus Applications
• Buffered Inputs Minimize Loading
• Address Decoding On-Chip
• Diode Clamped Inputs Minimize Ringing
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Specifications:-
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| Symbol | Parameter | Min | Max | Units | Conditions | |
| VOL | Output Low Voltage | XM | 0.4 | 0.5 | V | VCC= Min |
| lOL = 16 mA (S189) | ||||||
| XC | lOL = 16 mA (74LS189) | |||||
| VOH | Output High Voltage | XM | 2.8 | 2.8 | V | VCC= Min |
| lOL = Â 0.4 mA (LS189) | ||||||
| XC | lOL = 6.5 mA (74LS189) | |||||
| IOS | Output Short Circuit Current | -80 | mA | Vcc = Max | ||
| ICC | Power Supply Current | 40 | mA | Vcc = Max; WE, CS, Gnd | ||
* Product Images are shown for illustrative purposes only and may differ from actual product.
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