Donald Mikan - Austin TX, US Hugh Mair - Fairview TX, US Theodore W. Houston - Richardson TX, US Michael Patrick Clinton - Allen TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
G11C 5/14
US Classification:
365227, 36518915, 36518916, 365154, 365228
Abstract:
A memory array has a memory cell that comprises a storage element storing a logical state at a reduced voltage during at least one functional operation and a write access circuit configured to connect the storage element to at least a first write bit line in response to a write signal on the write word line for writing the logical state to the memory cell. The memory cell further comprises a read access circuit including an input node connected to the storage element and an output node connected to a read bit line of the memory array. The read access circuit is enabled and configured to read the logic state of the storage element in response to a read signal on the read word line. The reduced voltage is reduced relative to an operating voltage of at least one peripheral circuit associated with reading and/or writing of the memory cell.
Systems, devices, and methods are provided for enabling turbo mode for static random access memory (SRAM) devices. A cell circuit is coupled between a bit line pair and configured to perform read or write operations of a memory device. A sense amplifier circuit is coupled between the bit line pair and configured to sense a voltage differential between the bit line pair. A tracking circuit includes a tracking bit line (DBL) and is configured to monitor operation of the cell circuit and send a sense amplifier enable signal to the sense amplifier at a predetermined frequency rate based on a voltage level of the DBL. A turbo circuit is coupled to a turbo signal and configured to modify the voltage of the tracking bit line enabling sending of the sense amplifier enable signal at a rate faster than the predetermined frequency rate.
Systems, devices, and methods are provided for enabling turbo mode for static random access memory (SRAM) devices. A cell circuit is coupled between a bit line pair and configured to perform read or write operations of a memory device. A sense amplifier circuit is coupled between the bit line pair and configured to sense a voltage differential between the bit line pair. A tracking circuit includes a tracking bit line (DBL) and is configured to monitor operation of the cell circuit and send a sense amplifier enable signal to the sense amplifier at a predetermined frequency rate based on a voltage level of the DBL. A turbo circuit is coupled to a turbo signal and configured to modify the voltage of the tracking bit line enabling sending of the sense amplifier enable signal at a rate faster than the predetermined frequency rate.
Dual Rail Memory, Memory Macro And Associated Hybrid Power Supply Method
A dual rail memory operable at a first voltage and a second voltage, the dual rail memory includes: a memory array operates at the first voltage; a word line driver circuit configured to drive a word line of the memory array to the first voltage; a data path configured to transmit an input data signal or an output data signal; and a control circuit configured to generate control signals to the memory array, the word line driver circuit and the data path; wherein the data path and the control circuit are configured to operate at both the first and second voltages. Associated memory macro and method are also disclosed.
Dual Rail Memory, Memory Macro And Associated Hybrid Power Supply Method
A dual rail memory operable at a first voltage and a second voltage, the dual rail memory includes: a memory array operates at the first voltage; a word line driver circuit configured to drive a word line of the memory array to the first voltage; a data path configured to transmit an input data signal or an output data signal; and a control circuit configured to generate control signals to the memory array, the word line driver circuit and the data path; wherein the data path and the control circuit are configured to operate at both the first and second voltages. Associated memory macro and method are also disclosed.
- Dallas TX, US Vinod J. Menezes - Bangalore, IN Theodore W. Houston - Richardson TX, US Michael Patrick Clinton - Austin TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
G11C 7/02 G11C 8/08 G11C 11/419
US Classification:
365194, 365206
Abstract:
A memory circuit includes a bit cell that receives a word line, complementary bit lines and an array supply voltage; a word line driver coupled to the word line, the word line driver receiving one of the array supply voltage and a periphery supply voltage; and a word line suppression circuit coupled to the word line. The word line suppression circuit includes a diode and a switch coupled in series. The switch is responsive to the array supply voltage. The word line suppression circuit limits a word line voltage to a value lower than the array supply voltage such that the static noise margin (SNM) of the bit cell is increased.
- Dallas TX, US Vinod J. Menezes - Bangalore, IN Theodore W. Houston - Richardson TX, US Michael Patrick Clinton - Austin TX, US
Assignee:
TEXAS INSTRUMENTS INCORPORATED - Dallas TX
International Classification:
G11C 7/02 G11C 11/419 G11C 8/08
US Classification:
365206
Abstract:
A memory circuit includes a bit cell that receives a word line, complementary bit lines and an array supply voltage; a word line driver coupled to the word line, the word line driver receiving one of the array supply voltage and a periphery supply voltage; and a word line suppression circuit coupled to the word line. The word line suppression circuit includes a diode and a switch coupled in series. The switch is responsive to the array supply voltage. The word line suppression circuit limits a word line voltage to a value lower than the array supply voltage such that the static noise margin (SNM) of the bit cell is increased.
- Dallas TX, US Michael Patrick Clinton - Austin TX, US
International Classification:
G11C 17/08
US Classification:
365104, 365103
Abstract:
A two-bit read-only-memory (ROM) cell and method of sensing its data state. Each ROM cell in an array includes a single n-channel metal-oxide-semiconductor (MOS) transistor with a source biased to a reference voltage, and its drain connected by a contact or via to one or none of first, second, and third bit lines associated with its column in the array. Each row in the array is associated with a word line serving as the transistor gates for the cells in that row. In response to a column address, a column select circuit selects one pair of the three bit lines to be applied to a sense line in wired-NOR fashion for sensing.