M93C46-R STMICROELECTRONICS [STMicroelectronics], M93C46-R Datasheet - Page 9

• Manufacturer Part Number: M93C46-R
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M93C86, M93C76, M93C66, M93C56, M93C46
2
Connecting to the serial bus
Figure 3.
Figure 3
Only one device is selected at a time, so only one device drives the Serial Data Output (Q)
line at a time, the other devices are high impedance.
The pull-down resistor R (represented in
Bus Master leaves the S line in the high impedance state.
CS3 CS2 CS1
Bus master
shows an example of three memory devices connected to an MCU, on a serial bus.
Bus master and memory devices on the serial bus
SDO
SDI
SCK
R
C Q D
S
memory device
M93xxx
ORG
V
CC
Figure
V
R
SS
3) ensures that no device is selected if the
C Q D
memory device
S
M93xxx
ORG
V
CC
Connecting to the serial bus
V
R
SS
C Q D
memory device
S
M93xxx
V
CC
ORG
AI14377
V
SS
V
V
CC
SS
9/38