Casio CTK-650 manual IC Lead Identification and Internal Circuit, TC74HC08AP Quad 2-INPUT and Gate

IC LEAD IDENTIFICATION AND INTERNAL CIRCUIT

UPD6376CX (D/A converter)
					MAIN DAC		11 L.OUT
LRCK 13			SHIFT REGISTER LATCH
LRSEL/RSI 14		TIMING GENERATOR			SUB DAC		10 L.REF
SI/LSI 15
CLK	16				SUB DAC		9	R.REF
4/8 fs SEL	1				MAIN DAC		6	R.OUT
D.GND	2
		3	4	5	12	7	8
		N.C.	D.VDD	A.GND			A.VDD

TC74HC174AP (HEX D-TYPE FLIP FLOP WITH CLEAR )

		D0	D1	D2	D3	D4	D5
		3	4	6	11	13	14
CLEAR	1
			R	R	R	R	R	R
			D	D	D	D	D	D
			CK Q	CK Q	CK Q	CK Q	CK Q	CK Q
CLOCK	9
	16	8	2	5	7	10	12	15
	VDD	GND	Q0	Q1	Q2	Q3	Q4	Q5

TC74HC08AP (QUAD 2-INPUT AND GATE) TC74HC00AP (QUAD 2-INPUT NAND GATE)

1A 1

1B 2

1Y 3

2A 4

2B 5

2Y 6

14	VCC	1A	1
13	4B	1B	2
12	4A	1Y	3
11	4Y	2A
			4
10	3B	2B	5
	3A
9		2Y	6

14 VCC

13 4B

12 4A

11 4Y

10 3B

9 3A

GND 7

8 3Y GND 7

8 3Y

— 10 —