NJU6624C 查看數據表（PDF） - Japan Radio Corporation

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NJU6624C

14-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION

Japan Radio Corporation  

NJU6624C

The key roll over input is the vertical line as shown below (Example 2) can be accepted with the keyscan circuit.

But in case of Example 3, the key roll over input in the horizontal line can not be accepted.

The key roll over input must be taken care for key data judgement.

Example 2. The key roll over input (1)

NJU6624

K3 K2 K1 K0 S7 S6 S5 S4 S3 S2 S1 S0

ON

OFF

Read out data

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

MS1 MS0 1 0 0 1 1 1 1 1 0 0 0 0 1 0

| K3 to K0 | | S7 to S0 |

Example 3. The key roll over input (2)

NJU6624

K3 K2 K1 K0 S7 S6 S5 S4 S3 S2 S1 S0

ON

OFF

Note : In case of can not read out correct.

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