64K x 4 Bit Static RAM
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by MCM6709R/D
64K x 4 Bit Static RAM
The MCM6709R is a 262,...
Description
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by MCM6709R/D
64K x 4 Bit Static RAM
The MCM6709R is a 262,144 bit static random access memory organized as 65,536 words of 4 bits, fabricated using high–performance silicon–gate BiCMOS technology. Static design eliminates the need for external clocks or timing strobes. Output enable (G) is a special control feature that provides increased system flexibility and eliminates bus contention problems. The MCM6709R meets JEDEC standards and is available in a revolutionary pinout 300 mil, 28 lead plastic surface–mount SOJ package. Single 5 V ± 10% Power Supply Fully Static — No Clock or Timing Strobes Necessary All Inputs and Outputs are TTL Compatible Center Power and I/O Pins for Reduced Noise Three State Outputs Fast Access Times: MCM6709R–6 = 6 ns MCM6709R–7 = 7 ns MCM6709R–8 = 8 ns
MCM6709R
J PACKAGE 300 MIL SOJ CASE 810B–03
PIN ASSIGNMENT
A0 A1 A2 A3 E DQ0 VCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 A15 A14 A13 A12 G DQ3 VSS VCC DQ2 A11 A10 A9 A8 NC
BLOCK DIAGRAM
A A A A A A A A A ROW DECODER
VSS DQ1 W A4
MEMORY MATRIX 512 ROWS x 128 x 4 COLUMNS
A5 A6 A7
PIN NAMES
COLUMN I/O
DQ0
DQ3
INPUT DATA CONTROL
COLUMN DECODER
A E W G
A
A
A
A
A
A
A0 – A15 . . . . . . . . . . . . Address Inputs W . . . . . . . . . . . . . . . . . . . . Write Enable G . . . . . . . . . . . . . . . . . . . Output Enable E . . . . . . . . . . . . . . . . ...
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