MA5883

www.DataSheet4U.com THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT RECOMMENDED FOR NEW DESIGNS MA5883 ADVANCE INFORMATION DS3601-1.3 MA5883 20 MEMORY LD/DTMF SWITCHABLE DIALLER CHIP The MA5883 is a keypad switchable LD/DTMF dialler device with Last Number Redial facility and 20, 24-digit memories, 10 accessible via dedicated keys. www.DataSheet4U.com Three operating modes are available: LD mode, with the ability to temporarily switch to DTMF mode from the keypad during a call, LD only mode and DTMF mode. The former mode enables users to access services such as home banking. Mixed LD and DTMF numbers can also be stored in memory. The MA5883 is pin compatible with the MA5413, MA5453 and MA5473 LD/DTMF switchable diallers. Metal mask and pin selectable options are available to service the specific technical requirements of particular countries and for customers preferred features and circuit configurations. COL 6 IMP SELECT MASK OSC OUT OSC IN FILT IN FILT OUT HSW VSS VDD PAUSE OUT 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 COL 5 COL 4 ROW 4 ROW 3 ROW 2 ROW 1 COL 3 COL 2 COL 1 MUTE MF OUT COL 7 0.3" FEATURES s s s s s s s s DP 24/S Figure 1. Pin connections - top view Selectable Loop-Disconnect or DTMF dialling modes Keypad switchable LD to DTMF 24 digit Last Number Redial 20 x 24 digit Memories (10 dedicated keys) Selectable Break/Make Ratios 2:1 and 3:2 Uses inexpensive 560 kHz ceramic resonator Battery-less operation: Low Power CMOS ...