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a) Find the maximum allowable aspect ratio for the access transistors of a SRAM cell so that in a read operation, the output voltages of the cell do not change by more than the value of the threshold voltage. The SRAM has the following characteristics: L = 0.25 μm VDD = 2.5 V VTN = 0.5 V |VTP| = 0.5 V (W/L)n = 1.5 b) Repeat part a using the following characteristics: L = 0.18 μm VDD = 1.8 V VTN = 0.4 V |VTP| = 0.4 V (W/L)n = 1.5 c) Repeat part a using the following characteristics: L = 0.13 μm VDD = 1.2 V VTN = 02 V |VTP| = 0.2 V (W/L)n = 1.5

a) Find the maximum allowable aspect ratio for the access transistors of a SRAM cell so that in a read operation, the output voltages of the cell do not change by more than the value of the threshold voltage. The SRAM has the following characteristics: L = 0.25 μm VDD = 2.5 V VTN = 0.5 V |VTP| = 0.5 V (W/L)n = 1.5 b) Repeat part a using the following characteristics: L = 0.18 μm VDD = 1.8 V VTN = 0.4 V |VTP| = 0.4 V (W/L)n = 1.5 c) Repeat part a using the following characteristics: L = 0.13 μm VDD = 1.2 V VTN = 02 V |VTP| = 0.2 V (W/L)n = 1.5

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a) Find the maximum allowable aspect ratio for the access transistors of a SRAM cell so that in a read operation, the output voltages of the cell do not change by more than the value of the threshold voltage. The SRAM has the following characteristics:
L = 0.25 μ m V D D = 2.5 V V T N = 0.5 V | V T P | = 0.5 V ( W / L ) n = 1.5
b) Repeat part a using the following characteristics:
L = 0.18 μ m V D D = 1.8 V V T N = 0.4 V | V T P | = 0 . .4 V ( W / L ) n = 1.5
c) Repeat part a using the following characteristics:
L = 0.13 μ m V D D = 1.2 V V T N = 02 V | V T P | = 0.2 V ( W / L ) n = 1.5

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