Dictionary D

DPM

See "dual-port memory".

References:

DPSRAM

See "dual-port static RAM".

References:

DQ(n)(x)

See "data input/output".

References:

DQM

See "input/output data mask".

References:

drain (D; d)

A region into which majority carriers flow from the channel.

References:

JESD24, 7/85

drain current, dc (ID)

The direct current into the drain terminal.

References:

JESD24, 7/85
JESD28-A, 12/01
JESD60A, 9/04
JESD90, 11/04

drain cutoff current (ID(off))

The direct current into the drain terminal of a depletion-type transistor with a specified reverse gate-source voltage applied to bias the device to the off-state.

References:

JESD24, 7/85

drain leakage current (ID(leak))

The drain current when the transistor is biased in its off state.

NOTE ID(leak) may have contributions from channel off-state current, gate-induced drain leakage, and drain-to-gate tunneling currents.

References:

JESD60A, 9/04
JESD90, 11/04

drain power voltage (VDD)

The primary power voltage on MOS devices that require a potential that differs from the normal system logic voltage. The term VDD is used interchangeably with VCC on devices that use 5‑V supplies.

References:

JESD21-C, 1/97

drain region

A collection region that acquires principal-current charge carriers from a channel, the current being due to a voltage applied to the drain.

NOTE This definition applies for the actual operating mode of the device regardless of the name of any associated terminal.

References:

JESD77-B, 2/00

drain supply voltage, dc (VDD)

The dc supply voltage applied to a circuit connected to the drain terminal.

References:

JESD24, 7/85

drain terminal (D, d)

The specified externally available point of connection to the drain region.

References:

JESD77-B, 2/00

drain-gate voltage, dc (VDG)

The dc voltage between the drain terminal and the gate terminal.

References:

JESD24, 7/85

drain-source capacitance (Cds)

The capacitance between the drain and source terminals with the gate terminal connected to the guard terminal of a three-terminal bridge.

References:

JESD24, 7/85

drain-source voltage, dc (VDS)

The dc voltage between the drain terminal and the source terminal.

References:

JESD24, 7/85
JESD28-A, 12/01
JESD60A, 9/04
JESD90, 11/04

DRAM

See "dynamic (random-access) memory".

References:

drift

The maximum absolute change in a parameter over a period of time.

NOTE The change may or may not be normalized to the initial value of the parameter. The specific term should be "(parameter) drift".

References:

JESD86#, 8/01
JESD99B, 5/07

driver

An amplifier or gate with increased ability to drive a load.

References:

JESD99B, 5/07

DRT

See "double-buffered read transfer".

References:

DSF

See "special-function enable input".

References:

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