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MCM6229BBEJ20R2 bảng dữ liệu(PDF) 1 Page - Motorola, Inc |
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MCM6229BBEJ20R2 bảng dữ liệu(HTML) 1 Page - Motorola, Inc |
1 / 8 page MCM6229BB 1 MOTOROLA FAST SRAM Product Preview 256K x 4 Bit Static Random Access Memory The MCM6229BB is a 1,048,576 bit static random access memory organized as 262,144 words of 4 bits. Static design eliminates the need for external clocks or timing strobes while CMOS circuitry reduces power consumption and provides for greater reliability. The MCM6229BB is equipped with both chip enable (E) and output enable (G) pins, allowing for greater system flexibility and eliminating bus contention problems. The MCM6229BB is available in 300 mil and 400 mil, 28 lead surface–mount SOJ packages. • Single 5 V ± 10% Power Supply • Fast Access Times: 15/17/20/25/35 ns • Equal Address and Chip Enable Access Times • All Inputs and Outputs are TTL Compatible and LVTTL Compatible • Three State Outputs • Low Power Operation: 155/150/135/130/110 mA Maximum, Active AC BLOCK DIAGRAM MEMORY MATRIX 512 ROWS x 2048 COLUMNS ROW DECODER INPUT DATA CONTROL DQ DQ COLUMN I/O COLUMN DECODER A A A A A A A A E W G A A A A A A A A A A This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice. Order this document by MCM6229BB/D MOTOROLA SEMICONDUCTOR TECHNICAL DATA PIN ASSIGNMENTS MCM6229BB PIN NAMES XJ PACKAGE 400 MIL SOJ CASE 810–03 19 18 17 16 15 28 27 26 25 24 23 22 21 20 A A A A A A A A A A A E G VSS VCC A A A A A A NC* DQ DQ DQ DQ A 10 11 12 13 14 1 2 3 4 5 6 7 8 9 W A Address Inputs . . . . . . . . . . . . . . . . . . . . W Write Enable . . . . . . . . . . . . . . . . . . . . . G Output Enable . . . . . . . . . . . . . . . . . . . E Chip Enable . . . . . . . . . . . . . . . . . . . . . . DQ Data Inputs/Outputs . . . . . . . . . . . . . VCC + 5 V Power Supply . . . . . . . . . . . . . VSS Ground . . . . . . . . . . . . . . . . . . . . . . . NC* No Connection . . . . . . . . . . . . . . . . . *If not used for no connect, then do not ex- ceed voltages of – 0.5 to VCC + 0.5 V. This pin is used for manufacturing diag- nostics. EJ PACKAGE 300 MIL SOJ CASE 810B–03 11/7/96 © Motorola, Inc. 1995 |
Số phần tương tự - MCM6229BBEJ20R2 |
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Mô tả tương tự - MCM6229BBEJ20R2 |
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