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PDF MCM67Q804 Data sheet ( Hoja de datos )
| Número de pieza | MCM67Q804 | |
| Descripción | 256K x 4 Bit Separate I/O Synchronous Fast Static RAM | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MCM67Q804 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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MOTOROLA
• SEMICONDUCTOR
TECHNICAL DATA
Product Preview
256K x 4 Bit Separate 1/0
Synchronous Fast Static RAM
The Motorola MCM670a04 is a 1,04a,576 bit static random access memory,
organized as 262,144 x 4 bits. This device is fabricated using Motorola's high-
performance silicon-gate BiCMOS technology. It features separate TTL input and
output buffers, which are fully I/O compatible at 3.3 V, and incorporates input and
output registers on board with high speed SRAM. It also features transparent-write
and data pass-through capabilities.
The synchronous design allows for precise cycle control with the use of an exter-
nal single clock (K). The Addresses (AO - A 17), Data Input (DO - D3), Data Output
(00 - 03), Write-Enable (W), Chip-Enable (E), and Output-Enable (<3), are regis-
tered in on the rising edge of Clock (K).
The MCM670a04 is available in a 400 mil, 36-lead surface-mount SOJ package.
• Single 5 V ± 10% Power Supply
• Fast Cycle Times: 10/12 ns Max
• Single Clock Operation
• TTL Input and Output Levels (3.3 V I/O Compatible)
• Address, Data Input, E, W, <3, Registers on Chip
• 100 MHz Maximum Clock Cycle Time
• Self Timed Write
• Separate Data Input and Output Pins
• Transparent-Write or Data Pass-Through
• High Output Drive Capability: 50 pF/Output at Rated Access Time
BLOCK DIAGRAM
MCM67Qa04
WJ PACKAGE
400 MILSOJ
CASE 893
PIN ASSIGNMENT
NC A17
AO A16
Al A1S
A2 A14
A3 A13
E IT
DO 03
00 03
VCC Vss
Vss VCC
01 Q2
01 02
Vi K
A4 A12
AS All
A6 Al0
A7 A9
NC AS
00-03
PIN NAMES
AO-A17 ................. Address Input
E . . . . . . . . . . . . . . . . . . . . . . . .. Chip Enable
W ........................ Write Enable
G ...................... Output Enable
DO - 03 .................... Data Inputs
00 - 03 ................ " Data Outputs
K .......................... Clock Input
VCC ............... + 5 V Power Supply
VSS .......................... Ground
NC ..................... No Connection
This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice.
MCM67Qa04
4-302
MOTOROLA FAST SRAM DATA
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WRITE AND DATA PASS-THROUGH CYCLE TIMING
TRANSPARENT-WRITE
TRANSPARENT-WRITE
TRANSPARENT-WRITE
AND OUTPUTS HIGH-Z
WRITE WITH NO PASS THROUGH
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MCM67Q804.PDF ] | |
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