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LC78211-E bảng dữ liệu(PDF) 5 Page - ON Semiconductor |
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LC78211-E bảng dữ liệu(HTML) 5 Page - ON Semiconductor |
5 / 6 page Pin Functions Operation 1. Data Input Procedure The LC78211, LC78212 and LC78213 are controlled by inputting specified data to the CL, DI and CE pins. The input data consists of 12 bits, of which four bits are address and eight bits are data. Bits correspond to the L1 to L8 and R1 to R8 analog switches, and a value of one turns the corresponding switch on, and a value of zero turns it off. 0.........Off 1.........On The address is used when the chip is connected to a shared bus. The data (address) that must be transmitted depends on the S pin and the particular product as shown in the table below. Note: The bit for switch eight in the LC78213 is a “don’t care” bit, that is it can be either 0 or 1 without affecting chip function. This is because the LC78213 has two sets of seven (not eight) circuits. No. 4817-5/6 LC78211, 78212, 78213 Pin I/O Internal equivalent circuit Pin function VDD, VSS, VEE L1 to L8, R1 to R8, LCOM1 to LCOM4, RCOM1 to RCOM4 CL, DI, CE S RES I I I See the block diagram. Power supply Analog switch input and output Serial data input (Schmitt buffer) CL ..............Clock input DI ...............Data input CE .............Chip enable Selection of one of two chips The address is set to the values shown in the table below according to the level input to the S pin. Reset input The states of the analog switches are undefined when power is first applied. Setting this pin low will force all switches the off state. Product S pin Address level A0 A1 A2 A3 LC78211 L 0 1 0 1 H 1 1 0 1 LC78212 L 0 0 1 1 H 1 0 1 1 LC78213 L 0 1 1 1 H 1 1 1 1 Product S pin Address level A0 A1 A2 A3 LC78211 L 0 1 0 1 H 1 1 0 1 LC78212 L 0 0 1 1 H 1 0 1 1 LC78213 L 0 1 1 1 H 1 1 1 1 |
Số phần tương tự - LC78211-E |
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Mô tả tương tự - LC78211-E |
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