摘要:
An oscillator circuit includes a capacitor device, a current source for supplying a current to the capacitor device, a reference voltage, and a control circuit. The reference voltage is a first input to a comparator. An output of the capacitor device and an output of the current source are a second input to the comparator. The control circuit resets the oscillator circuit when the first and second inputs to the comparator are equal.
摘要:
A method and a device for regulating the threshold voltage of a transistor is disclosed. The device includes a circuit configured for modifying a voltage applied at a bulk connection of the transistor such that the threshold voltage of the transistor is substantially temperature-independent at least in a first temperature range. In one embodiment, the device includes a memory device, and the transistor is a transistor of a sense amplifier of the memory device.
摘要:
The invention relates to a voltage regulating circuit arrangement for converting a first voltage (VEXT) applied to an input of said voltage regulating circuit arrangement into a second voltage (VBLH) that may be tapped at an output of said voltage regulating circuit arrangement, wherein, when said first voltage (VEXT) falls below a threshold value (VEXT_THRESHOLD), the first voltage (VEXT) applied to the input of said voltage regulating circuit arrangement is connected through to said output of said voltage regulating circuit arrangement.
摘要:
The invention relates to a system (1) comprising a first semiconductor device (2a), and a second semiconductor device (2b), wherein the first semiconductor device (2a) comprises a voltage supply means (3a), and wherein the voltage supply means (3a) of the first semiconductor device (2a) is connected to the second semiconductor device (2b), so that the voltage supply means (3a) of the first semiconductor device (2a) can provide a supply voltage for the second semiconductor device (2b).
摘要:
A method for setting the trigger power of transmitter diodes that transmit data via optical paths allows the transmission power to be adjusted and adapted to the communication distance. The trigger power is determined for the present communication distance on the basis of a test signal before data transmission begins. A circuit arrangement implementing the method includes a driver circuit with a switching device that switches a circuit junction point selectively to a supply voltage or to a constant reference voltage, a voltage-controlled resistor which delivers the driver current and is controlled from the circuit junction point, and a voltage-controlled measuring resistor which delivers a measured current with a fixed relationship to the driver current and is controlled from the circuit junction point. Since the set trigger power can be reduced, the power consumption for data transmission can be reduced considerably.
摘要:
The invention relates to a driver device and a method for operating a driver device in particular for a semiconductor device. The driver device includes a signal driver connected to a supply voltage. The driver device also includes a signal driver activating circuit section for activating a further signal driver when the supply voltage lies below a predetermined threshold value.
摘要:
A method and a circuit are disclosed for determining the resistive state of a resistive memory cell being read. The method includes determining the resistive state of the memory cell being read by comparing a current dependent on the resistive state of the memory cell being read with a reference current that can be dependent on a resistive state of at least one reference resistive memory cell. A read circuit can be constructed to compare the two currents. The resistive state of the memory cell being read is indicative of the data bit stored by the memory cell.
摘要:
Methods and apparatus for determining a temperature of a memory device. A memory device includes a memory array, a temperature configured to measure a temperature of the device and an evaluating circuit configured to receive a signal representative of the temperature measured by the temperature sensor and configured to generate a code word indicative of the measured temperature and a type of the temperature sensor, the temperature sensor being selected from one of at least two different temperature sensor types.
摘要:
The invention relates to a method for operating a driver device (1), and to a driver device (1), in particular for a semiconductor device, said driver device (1) comprising: a signal driver (6a) connected to a supply voltage (VDDQ), c h a r a c t e r i z e d i n t h a t the driver device (1) additionally comprises: means (5) for activating a further signal driver (6b) when the supply voltage (VDDQ) lies below a predetermined threshold value (VDDQthreshold, VDDQthreshold1).
摘要:
An integrated circuit includes memory segments, each having at least one memory cell configurable in first and second states to store data, and a controller that controls programming and erasing of the memory segments. The controller maps external memory addresses of write data to internal memory addresses of erased memory segments with no memory cells in the first state such that erased memory segments are programmed with write data. When a write access occurs for an external memory address previously mapped to an internal memory address of a programmed memory segment with at least one memory cell in the first state, the controller remaps the external memory address to another internal memory address of an erased memory segment. The controller identifies programmed memory segments to be erased and controls selective erasure of the identified programmed memory segments, such as programmed memory segments no longer mapped to an external memory address.