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M93C46 数据表(PDF) 9 Page - STMicroelectronics

部件名 M93C46
功能描述  16 Kbit, 8 Kbit, 4 Kbit, 2 Kbit and 1 Kbit (8-bit or 16-bit wide) MICROWIRE짰 serial access EEPROM
PDF  38 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M93C46 数据表(HTML) 9 Page - STMicroelectronics

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M93C86, M93C76, M93C66, M93C56, M93C46
Connecting to the serial bus
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Connecting to the serial bus
Figure 3.
Bus master and memory devices on the serial bus
Figure 3 shows an example of three memory devices connected to an MCU, on a serial bus.
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 Figure 3) ensures that no device is selected if the
Bus Master leaves the S line in the high impedance state.
AI14377
Bus master
M93xxx
memory device
SDO
SDI
SCK
CQD
S
M93xxx
memory device
CQD
S
M93xxx
memory device
CQD
S
CS3 CS2 CS1
ORG
ORG
ORG
RR
R
VCC
VCC
VCC
VCC
VSS
VSS
VSS
VSS



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