IC name:	Am7992B
IC function:	Serial Interface Adapter (SIA)
Related components:	Am7990, Am7996

Component documentation

IC number	Manufacturer	Documentation
Am7992B	AMD	Web site, Datasheet (PDF)

Component versions

IC number	Package	CBM part number	CBM part description
Am7992B	24-Pin DIP	390632-01	AMD7992B SIA

Positions

Amiga	Position	Package
A2065	U20	DIP

Pinout

Pin	Type	Name	Description
1	Output	CLSN	Collision
2	Output	RX	Receive Data
3	Output	RENA	Receive Enable
4	Output	RCLK	Receive Clock
5	Output	TSEL	Transmit Mode Select
6..7	Power	GND1..GND2	Ground
8..9	Input	X1..X2	Crystal Oscillator
10	Input	TX	Transmit
11	Output	TCLK	Transmit Clock
12	Input	TENA	Transmit Enable
13	Outputs	Transmit-	Transmit, differential
14		Transmit+
15	Power	GND3	Ground
16	Output	RF	Frequency setting VCO Loop filter
17	Input	PF	Receive path VCO Phase-Locked loop filer
18..19	Power	VCC1..VCC2	Supply
20	Input	_TEST	Test Control
21	Inputs	Receive-	Receiver, differential
22		Receive+
23	Inputs	Collision-	Collision, differential
24		Collision+