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S-7760A53XX-HCT1 Datasheet(PDF) 35 Page - Seiko Instruments Inc |
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S-7760A53XX-HCT1 Datasheet(HTML) 35 Page - Seiko Instruments Inc |
35 / 53 page PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT) Rev.1.3_00 S-7760A Seiko Instruments Inc. 35 Option The explanation of seven options which are available for this IC and the option tables are shown here. When selecting the option, follow these descriptions. 1. Device code (8 types) Selecting the arbitrary device address code is available (Refer to Figure 13). Table 14 Option List of Device Code No. C2 C1 C0 Opt10 0 0 0 Opt11 0 0 1 Opt12 0 1 0 Opt13 0 1 1 Opt14 1 0 0 Opt15 1 0 1 Opt16 1 1 0 Opt17 1 1 1 2. Internal generation of oscillation CLK/External input Although this IC has an oscillation circuit for generating delay time, without operating this circuit, it is also possible to use this IC’s external oscillation CLK for generating delay time. Table 15 Option List of Oscillation CLK No. Internal/External Opt20 Using an internal oscillation circuit Opt21 Using an external oscillation circuit 3. Delay time Delay time is selectable in the following settings (T’ : Oscillation CLK cycle (approx. 5 µs when using an internal oscillation circuit). Table 16 Option List of Delay Time No. Timer scale setting register 1: Delay time for short-time setting (T) 0: Delay time for long-time setting (LT) Opt30 T’ × 1 T’ × 64 Opt31 T’ × 2 T’ × 128 |
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