Practice SRAM Arrays
Consider the memory array shown below.
Assume that each SRAM's address is connected to ADR[14..0] and that its R/W signal is directly connected to the array R/W input. The SRAMs' chip select inputs are driven from the array inputs as shown below.
$CS0 = \overline{ADR[16]} \cdot ADR[15] \cdot CS$
$CS1 = ADR[16] \cdot \overline{ADR[15]} \cdot CS$
$CS2 = ADR[16] \cdot ADR[15] \cdot CS$
$CS3 = \overline{ADR[16]} \cdot \overline{ADR[15]} \cdot CS$
If the array is signalled to perform a read at address 09ABC$_{16}$, which SRAM device(s) will be enabled?
SRAM 0
SRAM 1
SRAM 2
SRAM 3
Attempt #1: 0/1 (Score: 0/1)
Allowed attempts: 1
The size (i.e., depth x width) of the memory array shown above is 1 128 k x 2 8 b.
Attempt #1: 1/1 (Score: 1/1)
Allowed attempts: 2 Retry penalty: 30%