MC145158-2

The MC145158-2 has a fully programmable 14-bit reference counter, as well as fully programmable + N and + A counters. The counters are programmed serially through a common data input and latched into the appropriate counter latch, according to the last data bit (control bit) entered. The MC145158-2 is an improved-performance drop-in replacement for the MC145158-1. Power consumption has decreased and ESD and latch-up performance have improved.

The features of MC145158-2 can be summarized as (1)low power consumption through use of CMOS technology; (2)3.0 to 9.0V Supply range; (3)fully programmable reference and + N counters; (4)+ R range=3 to 16383; (5)+ N range=3 to 1023; (6)dual modulus capability; + A range=0 to 127; (7)fv and fR outputs; (8)lock detect signal; (9)compatible with the serial peripheral interface (SPI) on CMOS MCUs; (10)"linearized" digital phase detector; (11)single-ended (three-state) or double-ended phase detector outputs; (12)chip complexity: 6504 FET or 1626 equivalent gates.

The absolute maximum ratings of MC145158-2 are (1)VDD DC supply voltage: -0.5 to +10.0V; (2)Vin, VOUT input or output voltage (DC or transient), except SW1, SW2: 0.5 to VDD+0.5V; (3)VOUT output voltage (DC or Transient), SW1 or SW2 (Rpullup= =4.7: -0.5 to +15V; (4)input or output current (DC or transient), per Pin: ±10mA; (5)supply current, VDD or VSS pins: ±30; (6)power dissipation, per packaget PD: 500mW; (7)tstg storage temperature: - 65 to +150°C; (8)TL lead temperature, 1mm from case for 10 seconds: 260°C (Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the limits in the Electrical Characteristics tables or Pin Descriptions section.).