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PCF5001H Datasheet(PDF) 8 Page - NXP Semiconductors |
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PCF5001H Datasheet(HTML) 8 Page - NXP Semiconductors |
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8 / 44 page  1997 Mar 04 8 Philips Semiconductors Product specification POCSAG Paging Decoder PCF5001 BL 24 8 Battery-low indication output. If the decoder encounters a battery-low condition a battery-low output latch is set HIGH. The battery-low output latch may be tested for a battery-low condition, whenever the interface enable input (IE) is active (HIGH), otherwise the battery-low output is made high-impedance. The battery-low output latch is reset only, by switching the decoder to OFF status. OR 25 9 Out-of-range indication output. Whenever the decoder detects an out-of-range condition an out-of-range output latch is set HIGH after expiry of the programmed out-of-range hold-off time selected by means of special programming (SPF06 and SPF07) of the EEPROM. The out-of-range latch may be tested for an out-of-range condition, whenever the interface enable input (IE) is active (HIGH), otherwise the out-of-range output is made high-impedance. The out-of- range output is reset by detection of a valid data transmission or by switching the decoder to OFF status. DO 26 10 Serial interface data output. During normal decoder operation, accepted calls and possibly subsequent message data are serially output via this pin in conjunction with the data strobe output (DS). This pin is also used to output the EEPROM contents upon special command, if the decoder is programmed for display pager. DS 27 11 Serial interface data strobe output. Provides a clock signal for the received call data and EEPROM data appearing at the data output (DO). Each time this output is LOW the data at DO is valid. Additional start and stop conditions allow easy identification of data sequence start and end. FL 28 12 Frequency reference output. When programmed for ‘display pager’ mode, this output provides a clock reference with 16384 or 32768 Hz per second, selected by SPF32. See Chapter 7. n.c. − 2, 7, 20, 21 Not connected. SYMBOL PIN DESCRIPTION PCF5001T (SOT136-1) PCF5001H (SOT358-1) |
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Similar Description - PCF5001H |
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