uPD2810 PLL Integrated Circuits

Pin	Name	Decription
1	P1	Binary programable input 1
2	P2	Binary programable input 2
3	P3	Binary programable input 3
4	P4	Binary programable input 4
5	P5	Binary programable input 5
6	P6	Binary programable input 6
7	P7	Binary programable input 7
8	T	Divided by 2 input
9	Q	Divided by 2 output
10	IFS	IF Frequency Select
11	T/R	Transmit=LOW Receive=HIGH
12	VDD	Positive Power Supply (+5Volt)
13	RO	Refeerency oscillator Output (X-tal)
14	RI	Referency oscillator Input (X-tal)
15	RB	Reference divider output (Buffered)
16	1/2R	Referency frequency divided by 2
17	LD	Loop Detector - HIGH=Locked LOW=Unlocked
18	VDD	Positive Power Supply (+5Volt)
19	PD out	Phase Detector output
20	AI	Loop filter Amplifier Input
21	AO	Loop filter Amplifier Output
22	FS	Function Select - HIGH=10kHz step LOW=5kHz step
23	GND	Ground
24	FIN	VCO Oscillator Input

This counter shows the number of hits since the 29th January 2000