M36P0R8070E0 データシートの表示（PDF） - Numonyx -> Micron
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M36P0R8070E0 Datasheet PDF : 22 Pages
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Signal descriptions
M36P0R8070E0
2.18
VDDF supply voltage
VDDF provides the power supply to the internal core of the Flash memory. It is the main
power supply for all Flash memory operations (read, program and erase).
2.19
2.20
2.21
VCCP supply voltage
The VCCP supply voltage is the core supply voltage.
VDDQ supply voltage
VDDQ provides the power supply for the Flash memory and PSRAM I/O pins. This allows all
outputs to be powered independently of the Flash memory and PSRAM core power
supplies, VDDF and VCCP.
VPPF program supply voltage
VPPF is both a control input and a power supply pin for the Flash memory. The two functions
are selected by the voltage range applied to the pin.
If VPPF is kept in a low voltage range (0V to VDDQ) VPPF is seen as a control input. In this
case a voltage lower than VPPLK gives absolute protection against program or erase, while
VPPF > VPP1 enables these functions. VPPF is only sampled at the beginning of a program or
erase; a change in its value after the operation has started does not have any effect and
program or erase operations continue.
If VPPF is in the range of VPPH it acts as a power supply pin. In this condition VPPF must be
stable until the program/erase algorithm is completed.
2.22
Note:
VSS ground
VSS is the common ground reference for all voltage measurements in the Flash memory
(core and I/O Buffers) and PSRAM chips. It must be connected to the system ground.
Each Flash memory device in a system should have its supply voltage (VDDF) and the
program supply voltage VPPF decoupled with a 0.1 µF ceramic capacitor close to the pin
(high-frequency, inherently-low inductance capacitors should be as close as possible to the
package). See Figure 5: AC measurement load circuit. The PCB track widths should be
sufficient to carry the required VPPF program and erase currents.
12/22
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