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TB62709NG Dataheets PDF



Part Number TB62709NG
Manufacturers Toshiba Semiconductor
Logo Toshiba Semiconductor
Description 7-SEGMENT DRIVERS
Datasheet TB62709NG DatasheetTB62709NG Datasheet (PDF)

TB62709NG/FG TOSHIBA Bi−CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC TB62709NG,TB62709FG 7−SEGMENT DRIVERS WITH BUILT−IN DECODERS (COMMON ANODE CAPABILITY, MAXIMUM 4−DIGIT CONTROL) The TB62709NG and TB62709FG are multifunctional, compact, 7−segment LED display drivers. These ICs can directly drive 7−segment displays and individual LEDs, and can control either a 4−digit display with decimal points, or 32 individual LEDs. These ICs can also be used with common−anode displays. Their outputs are cons.

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TB62709NG/FG TOSHIBA Bi−CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC TB62709NG,TB62709FG 7−SEGMENT DRIVERS WITH BUILT−IN DECODERS (COMMON ANODE CAPABILITY, MAXIMUM 4−DIGIT CONTROL) The TB62709NG and TB62709FG are multifunctional, compact, 7−segment LED display drivers. These ICs can directly drive 7−segment displays and individual LEDs, and can control either a 4−digit display with decimal points, or 32 individual LEDs. These ICs can also be used with common−anode displays. Their outputs are constant current, the ampere levels at which are set using an external resistor. A synchronous serial port connects the IC to the CPU. The different modes of control provided by this device including Duty Control Register Set, Digit Set, Decode Set and Standby Set, are all based on every 16−bit of serial data. This devices are a product for the Pb free(Sn-Ag). TB62709NG TB62709FG FEATURES Control circuit power supply voltage : VDD = 4.5 to 5.5 V Digit output rating : 17 V / −400 mA Decoder output rating : 17 V / 50 mA Built−in decoder : Decodes the numerals 0 to 9, certain alphabetic characters, and of course blanks code. Digit control function : Can scan digit outputs DIG−0 to DIG−3 when connected to the common anode pins of a 7−segment display. Maximum transmission frequency : fCLK = 15 MHz Decoder outputs (OUT−A to OUT−Dp) Output current can be set up to a 40mA maximum using an external resistor. Constant current tolerance (Ta = 25°C, VDD = 5.0 V) : Variation between bits = ±7%, variation between devices (including variation between bits) = ±15% at VCE ≥ 0.7 V Package : 24−pin SDIP (SDIP24−P−300−1.78) 24−pin SSOP (SSOP24−P−300−1.00) Weight SDIP24-P-300-1.78 : 1.62 g (typ.) SSOP24-P-300-1.00 : 0.32 g (typ.) www.DataSheet4U.com Company Headquarters 3 Northway Lane North Latham, New York 12110 Toll Free: 800.984.5337 Fax: 518.785.4725 Web: www.marktechopto.com | Email: [email protected] California Sales Office: 950 South Coast Drive, Suite 225 Costa Mesa, California 92626 Toll Free: 800.984.5337 Fax: 714.850.9314 TB62709NG/FG PIN ASSIGNMENT (Top view) BLOCK DIAGRAM www.DataSheet4U.com 2 2005-10-06 TB62709NG/FG PIN FUNCTIONS PIN NUMBER 1 2 3 PIN NAME VDD DATA−IN (DI) CLOCK (CK) 5 V power pin. Serial data input pin. Clock input pin. The shift register shifts data on the clock's rising edge. Load signal input pin. The data in the D8 to D15 are read on the rising edge and the current load register the is selected from among the Duty Register, the Decode & Digit Register, or Data Registers 0 to 3. The D0 to D7 bits of the 16−bit shift register contain data corresponding to the same registers just described, which are read on the load signal's falling edge. Segment drive output pins. The A to Dp outputs correspond to the seven segments. These pins output constant sink current. Connect each of these pins to the corresponding LED's cathode. Ground pins, There are two which can be used to ground the output OUT−A to OUT−Dp pins. Product test pin. In normal use, be sure to connect to ground. Product test pin. In normal use, be sure to connect to ground. Digit output pins. Each of these pins can control one of the four seven−segment digits in a display. These pins output the VCC pin voltage as a source current output. Connect these pins to the LED anodes. Power pin for digit output. Current setting pin for the OUT−A to OUT−Dp pins. Connect a resistor between this pin and ground when setting the current. Serial data output pin. Use when TB62709N or TB62709F devices are used in cascade connections. Ground pin for logic and analog circuits. FUNCTION 4 LOAD (LD) 5~12 13, 21 14 15 OUT−A to OUT−Dp P−GND TEST−IN2 TEST−IN1 16, 17, 19, 20 DIG−0 to DIG−3 18 22 23 24 VCC R−EXT DATA−OUT (DO) L−GND www.DataSheet4U.com 3 2005-10-06 TB62709NG/FG TIMING DIAGRAM DATA INPUT Transfer data to the DATA−IN pin on every 16−bit combining address (8bits) and data (8bits). After the 16th clock signal input following this data transfer input a load signal from the LD pin. Input the load signal using an Active High pulse. The register address is set on the rising edge of the load pulse. On the subsequent falling edge, the data are read as data of the mode of the register. www.DataSheet4U.com 4 2005-10-06 TB62709NG/FG DESCRIPTION OF OPERATION Data input (SERIAL−IN, CLOCK, LOAD) The data are input serially using the SERIAL−IN pin. The data input interface consists of a total of three inputs : SERIAL−IN, LOAD, and CLOCK. Binary code stored in the 16−bit shift register offers control modes including duty Control Register Set, Digitset, Decode Set, and Standby Set, The data are shifted on the rising edge of the clock, starting from the MSB. Cascade−connecting TB62709NG or TB62709FG devices provides capability for controlling a larger number of digits. The serial data in the 16−bit shift register are used as follows : the four bits D15 (MSB) to D12 select the IC operating mode (Table 1), while D11 to D8 select the register correspon.


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