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N74F538N6029 N74F538N6029 N74F538N6029 Datasheet ASIA/PACIFIC (continued) Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore 188980 Tel: 65-334-8870 Fax: 65-334-8850 Taiwan, R.O.C Microchip Technology Taiwan 10F-1C 207 Tung Hua North Road Taipei, Taiwan, ROC Tel: 886-2-2717-7175 Fax: 886-2-2545-0139 N74F538N6029 N74F538N6029 N74F538N6029 Price The following operations are common to all modes. Control Word: When a Control Word is written to a Counter, all Control Logic is Reset, and OUT is initialized to a known state. No CLK pulses are needed. Gate: The GATE input is always sampled on the rising edge of CLK. In modes 0, 2, 3, and 4 the GATE input is level sensitive, and the logic level is sampled on the rising edge of CLK. In modes l, 2, 3, and 5 the GATE input is rising-edge sensitive. In these modes, a rising edge of GATE (trigger) sets an edge-sensitive flip-flop in the Counter. This flip-flop is sampled on the next rising edge of CLK, then is immediately reset. In this way, a trigger will be detected no matter when it occurs and a high logic level does not have to be maintained until the next CLK pulse. A summary is given in Table 5. N74F538N6029 N74F538N6029 N74F538N6029 on stock Programmable Interconnect Matrix The Programmable Interconnect Matrix (PIM) connects the four logic blocks on the CY7C372i to the inputs and to each other. All inputs (including feedbacks) travel through the PIM. There is no speed penalty incurred by signals traversing the PIM. COMPENSATION FOR THE CHANGE IN SENSITIVITY OVER TEMPERATURE All thermal accelerometers display the same sensitivity change with temperature. The sensitivity change depends on variations in heat transfer that are governed by the laws ofphysics. Manufacturing variations do not influence the sensitivity change, so there are no unit-to-unit differences in sensitivity change. The sensitivity change is governed by the following equation (and shown in Figure l in oC): |
