Intel 8080 manual Silicon Gate MOS 8102A-4

Silicon Gate MOS 8102A-4

1024 BIT FULLY DECODED STATIC MOS

RANDOM ACCESS MEMORY

•Access Time -450ns Max.

•Single +5 Volts Supply Voltage

•Directly TTL Compatible - All Inputs and Output

•Static MOS - No Clocks or Refreshing Required

•Low Power - Typically 150 mW

•Three-State Output - OR-Tie Capability

•Simple Memory Expansion - Chip Enable Input

•Fully Decoded - On Chip Address Decode

•Inputs Protected - All Inputs Have Protection Against Static Charge

•Low Cost Packaging - 16 Pin Plastic Dual-In-Line Configuration

The Intel®S102A-4 is a 1024 word by one bit static random access memory element using normally off N-channel MOS devices integrated on a monolithic array. It uses fully DC stable (static) circuitry and there- fore requires no clocks or refreshing to operate. The data is read out nondestructively and has the same polarity as the input data.

The 8102A-4 is designed for microcomputer memory applications where high performance, low cost, large bit storage, and simple interfacing are important design objectives.

It is directly TTL compatible in all respects: inputs, output, and a single +5 volt supply. A separate chip enable (CE) lead allows easy selection of an individual package when outputs are OR-tied.

®

The Intel 81 02A-4 is fabricated with N-channel silicon gate technology. This technology allows the design and production of high performance, easy-to-use MOS circuits and provides a higher functional density on a mon- olithic chip than either conventional MOS technology or P-channel silicon gate technology.

Intel'ssilicon gate technology also provides excellent protection against contamination. This permits the use of low cost silicone packaging.

PIN CONFIGURATION				LOGIC SYMBOL				BLOCK DIAGRAM
A6		16	A7
As	2	15	As		A o
					A1
RIW	3	14	Ag		A 2	DIN
					A3			CELL
A1	4	13	CE		A 4			ARRAY
								32 ROWS
	8102A-4				As 8102A-4			32 COLUMNS
A2	5	12	DATA OUT		As
A3	6	11	DATA IN		A 7
					As	DOUT
A4	7	10	Vee		Ag
Ao	8	9	GND		R/W	CE	R/W	COLUMN 110 CIRCUITS	DATA
									OUT
							DATA
							IN
		PIN NAMES
	DIN	DATA INPUT		CE	CHIP ENABLE
	Af}"Ag	ADDRESS INPUTS		DOUT	OATA OUTPUT
	R/W	READIWRITE INPUT		Vee	POWER (+5V)		0= PIN NUMBERS

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