M58BW016DT, M58BW016DB, M58BW016FT, M58BW016FB
Signal descriptions
2.14
2.15
2.16
Output supply voltage (VDDQ)
The output supply voltage, VDDQ, is the output buffer power supply for all operations (read,
program and erase) used for DQ0-DQ31 when used as outputs.
Input supply voltage (VDDQIN
)
The input supply voltage, VDDIN, is the power supply for all input signal. Input signals are: K, B,
L, W, GD, G, E, A0-A18 and DQ0-DQ31, when used as inputs.
Program/erase supply voltage (VPP)
The program/erase supply voltage, VPP, is used for program and erase operations. The
memory normally executes program and erase operations at VPP1 voltage levels. In a
manufacturing environment, programming may be speeded up by applying a higher voltage
level, VPPH, to the VPP pin.
The voltage level VPPH may be applied for a total of 80 hours over a maximum of 1000
cycles. Stressing the device beyond these limits could damage the device.
2.17
Ground (VSS and VSSQ)
The ground VSS is the reference for the internal supply voltage VDD. The ground VSSQ is the
reference for the output and input supplies VDDQ, and VDDQIN. It is essential to connect VSS
and VSSQ together.
Note:
A 0.1 µF capacitor should be connected between the supply voltages, VDD, VDDQ and VDDIN
and the grounds, VSS and VSSQ to decouple the current surges from the power supply. The
PCB track widths must be sufficient to carry the currents required during all operations of the
parts, see Table 15: DC characteristics, for maximum current supply requirements.
2.18
2.19
Don’t use (DU)
This pin should not be used as it is internally connected. Its voltage level can be between
V
SS and VDDQ or leave it unconnected.
Not connected (NC)
This pin is not physically connected to the device.
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MICRON [ MICRON TECHNOLOGY ]
