Nano core micro new tri state buffer NCA82XX series, suitable for automobile and industrial motor drive

Application of NCA82XX in Automobile and Industry。

The nano core micro NCA82XX series is an 8-channel tri state buffer, which can help improve the driving ability of bus oriented transceivers, clock drivers, etc., and ensure the accuracy of signal timing. The product series is divided into two versions of dual power supply and single power supply. Among them,

NCA8244 and NCA8541 are the basic versions powered by single power supply. They have the functions of bidirectional transmission and unidirectional data transmission respectively. They are usually used for motor drive, LED display and other scenarios

NCA84245 and NCA8T245 are upgraded versions of dual power supply, which can meet the requirements of customer system application upgrade and revision, more flexibly help customers achieve bilateral voltage conversion, and have the function of level shift

Application of NCA82XX Tri state Buffer in Automobile Main Drive

Application of NCA82XX Buffer in Industrial Servo/Frequency Converter

NCA824x is used for level conversion: for example, 3.3V to 5V to be compatible with CMOS level on the drive side; At the same time, it can be used to increase the I/O drive capability of MCU.

NCA82XX models and parameters

01 NCA8244

        NCA8244/NCA8244L is an eight channel buffer/driver, which is used to improve the driving ability of bus side oriented transceivers, clock drivers, etc. and ensure the integrity of signal timing. It provides four transmission channels in both directions, and has low level enabled output enable control (/OE).

       When/OE is low level, NCA8244/NCA8244L transfers data from input port A to output port Y. When/OE is high, the output port is in high resistance state. During power on and power off,/OE shall be connected to VCC through pull-up resistor to ensure that the output port remains in high resistance state. NCA8244/NCA8244L can support 5.5V input voltage, and each channel supports the maximum 24 mA current drive capability. All unused input ports must be kept in VCC or GND state to prevent VCC overcurrent.

Main characteristics

-Applicable to the automotive field: version of vehicle regulations: NCA8244-Q1TSTR, NCA8244-Q1SWTR

-Input compatible TTL level

-Power supply voltage: NCA8244: 4.5 v to 5.5 v; NCA8244L: 1.65V to 3.6V

-Support 5.5 V input voltage

- ESD：3000V HBM，2000V CDM

-Operating temperature: - 40 ℃~125 ℃

-ROHS compliant package: TSSOP20, SOP20

02 NCA8T245

        NCA8T245 is an 8-way buffer/driver with two independent power supplies, and the power supply voltage range is 1.65V~5.5V. The port A level refers to VCCA, and the port B level refers to VCCB, so it supports bidirectional level conversion between 1.8V, 2.5V, 3.3V and 5.5V. NCA8T245 is mainly used for asynchronous communication between two data buses, providing a direction control terminal (DIR) for bidirectional transmission of control data.

       When DIR is high, the chip transmits data from A to B; When DIR is low level, data is transmitted from end B to end A. Output enable/OE level follows VCCA, and low level enable. When/OE is high, the output terminal is in high resistance state. During power on and power off,/OE shall be connected to VCCA through pull-up resistor to ensure high resistance state of output terminal. When NCA8T245 power supply voltage is 4.5V~5.5V, it can support 32mA drive current at most. All unused inputs must be kept at VCC or GND to prevent VCC overcurrent.

Main characteristics

-Applicable to automotive applications: NCA8T245-Q1TSXR

-Control pin level refers to VCCA

-Power supply voltage: 1.65V~5.5V

- ESD：4000V HBM，1000V CDM

-Operating temperature: - 40 ℃~125 ℃

-ROHS compliant package: TSSOP24

03 NCA8541

        NCA8541 is an 8-way buffer/driver, which is used to improve the driving ability of bus side oriented transceivers, clock drivers, etc. and ensure the integrity of signal timing. It provides eight transmission channels and two low-level enabled output control terminals (/OE). When both/OE1 and/OE2 are enabled, NCA8541 transfers data from the A end to the Y end. When one of the/OE is high, the output is in the high resistance state.

        During power on and power off,/OE shall be connected to VCC through pull-up resistor to ensure high resistance state of output port. NCA8541 can support 5.5V input voltage, and each channel can support the maximum 6mA current drive capability. All unused inputs must be kept at VCC or GND to prevent overcurrent.

Main characteristics

-Applicable to automobile field: NCA8541-Q1TSTR

-Input compatible TTL level

-Power supply voltage: 4.5V~5.5V

-Support 5.5V input voltage

- ESD：3000V HBM，2000V CDM

-Operating temperature: - 40 ℃~125 ℃

-ROHS compliant package: TSSOP20

04 NCA84245

         NCA84245 is an 8-way bus transceiver with two independent power supplies. The level of terminal A refers to VCCA, and the supply voltage range is 4.5V~5.5V; The B terminal level refers to VCCB, and the supply voltage range is 2.7V~3.6V. It supports bidirectional level conversion of two voltage ranges. NCA84245 is mainly used for asynchronous communication between two data buses, providing a direction control terminal (DIR) to control the direction of data transmission. When DIR is logic high, data is transmitted from A to B; When DIR is low logic, data is transmitted from B to A. The output enable/OE level refers to VCCA, and the low level enable. When the/OE is high, the output is in the high resistance state. During power on and power off,/OE shall be connected to VCC through pull-up resistor to ensure high resistance state of output terminal. NCA84245 supports a maximum of 24mA current drive capability for each channel. All unused inputs must be kept at VCC or GND to prevent VCC overcurrent.

Main characteristics

-Applicable to automobile field: NCA84245-Q1TSXR

-Control pin level refers to VCCA

-Power supply voltage: VCCA: 4.5V to 5.5V; VCCB: 2.7V to 3.6V

- ESD：2000V HBM； 1000V CDM

-Operating temperature: - 40 ℃~125 ℃

-ROHS compliant package: TSSOP24