Electronic Components Datasheet Search |
|
SA589 Datasheet(PDF) 2 Page - Sames |
|
SA589 Datasheet(HTML) 2 Page - Sames |
2 / 14 page SA589 FAMILY sames 2/14 Pin Pin number name 1 NC Not connected 3 IMP 'Loop disconnect' dialling output 4 SELECT LD/DTMF selection, IDP and B/M ratio programming 5 MASK Output to disable speech circuit during pulse dialling and recall (see note 1) 6 OSC OUT Connections for 560kHz ceramic resonator 7 OSC IN 8 FILT IN Unity gain amplifier input and output for DTMF tone filtering 9 FILT OUT 10 HSW Hookswitch input - a logic 1 at this pin is used to indicate 'Off- Hook' 11 V SS Negative supply 12 V DD Positive supply 13 PAUSE OUT Active high indicating a pause when dialling from memory 17 MF OUT Unfiltered DTMF output 18 MUTE Output active during keying and tone transmission (see note 2) 19 COL1 20 COL2 21 COL3 26 COL4 27 COL5 2 COL6 16 COL7 22 ROW1 Connections for 38 key single contact keypad 23 ROW2 24 ROW3 25 ROW4 14 ROW 5 15 ROW 6 28 ROW 7 1. MASK may be used to disconnect the whole speech circuit in order to maintain the break condition whilst on-hook and during a TBR (Timed Flash) operation. 2. MUTE is provided to disable the microphone while maintaining the loop during DTMF transmission. OPERATION Power-on When power is applied to the chip, a power-on reset circuit operates and ensures that the Memories are cleared and all logic is reset. The power-on reset circuit is designed such that if the chip supply voltage drops to a level at which the memories may be corrupted, it will always, under all conditions, clear the memory, so that corrupt data is not retained. Function TABLE 1: PIN FUNCTIONS |
Similar Part No. - SA589 |
|
Similar Description - SA589 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |