NTE1254 Datasheet | NTE Electronics

Features : D Programmable Divider - Divided by 3 to 255 D 10- Bit Divider D Phase Detector D Reference Oscillation Circuit D On- Chip Filter Amplifier D Code Converter D Only two or three crystals required for CB radio AM frequency selection D Unlocked signals are detected at instant stop “IS” terminal D Two type program mode can be selected to change input mode level M: Low level . Binary code input enables, divided by 3 to 255 M: High level . BCD code enables that the data at P1 to P6 port is offset 90 by code converter D Internal active filter amplifier has a long holding time due to very high input impedance characteristics of the CMOS- this is to obtain very good spurious response. D Output signal of the “I” can be used to stop the spurious radiation when the channel selector makes misprogramming such as rotary switch’s lose contact. D High speed and low power consumption due to CMOS D Single power supply and fully TTL patible: VDD = 5 ± 0.5 Volts D Operating Temperature: TA = - 30° to 65°C D Pull down resistors installed in program and mode switch inputs Absolute Maximum Ratings: Supply Voltage - - - - - - - - - - - - - 0.3 to +6.0V Input Voltage - - - - - - - - - - - - . - 0.3 to +6.0V Operating Temperature Range, Topr - - - - - - - - . - 35° to +75°C Storage Temperature Range, Tstg - - - - - - - - . . - 55° to +125°C Electrical Characteristics: (TA = - 35° to +75°C unless otherwise specified) Parameter Power Supply Total Current High Level Input Voltage Low Level Input Voltage High Level Output Voltage Symbol VDD IDD VIH VIL VOH f=0 All Inputs All Inputs All Outputs Except D2, IO = - 0.3m A, VDD = 4.5V IO = - 0.15m A, VDD = 4.5V Low Level Output Voltage...