mcm63p631 Freescale Semiconductor, Inc, mcm63p631 Datasheet

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mcm63p631

Manufacturer Part Number
mcm63p631
Description
64k X 32 Bit Pipelined Burstram Synchronous Fast Static Ram
Manufacturer
Freescale Semiconductor, Inc
Datasheet
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
64K x 32 Bit Pipelined BurstRAM
Synchronous Fast Static RAM
a burstable, high performance, secondary cache for the 68K Family, PowerPC ,
and Pentium
This device integrates input registers, an output register, a 2–bit address counter,
and high speed SRAM onto a single monolithic circuit for reduced parts count in
cache data RAM applications. Synchronous design allows precise cycle control
with the use of an external clock (K). CMOS circuitry reduces the overall power
consumption of the integrated functions for greater reliability.
enable (G), sleep mode (ZZ), and Linear Burst Order (LBO) are clock (K) con-
trolled through positive–edge–triggered noninverting registers.
addresses can be generated internally by the MCM63P631 (burst sequence op-
erates in linear or interleaved mode dependent upon state of LBO) and controlled
by the burst address advance (ADV) input pin.
clock (K) input. This feature eliminates complex off–chip write pulse generation
and provides increased timing flexibility for incoming signals.
nous write enable SW are provided to allow writes to either individual bytes or to
all bytes. The four bytes are designated as “a”, “b”, “c”, and “d”. SBa controls
DQa, SBb controls DQb, etc. Individual bytes are written if the selected byte
writes SBx are asserted with SW. All bytes are written if either SGW is asserted
or if all SBx and SW are asserted.
edge–triggered output register and then released to the output buffers at the next
rising edge of clock (K).
are LVTTL compatible.
The PowerPC name is a trademark of IBM Corp., used under license therefrom.
Pentium is a trademark of Intel Corp.
This document contains information on a new product. Specifications and information herein are subject to change without notice.
MOTOROLA FAST SRAM
REV 3
8/4/97
The MCM63P631 is a 2M bit synchronous fast static RAM designed to provide
Addresses (SA), data inputs (DQx), and all control signals except output
Bursts can be initiated with either ADSP or ADSC input pins. Subsequent burst
Write cycles are internally self–timed and are initiated by the rising edge of the
Synchronous byte write (SBx), synchronous global write (SGW), and synchro-
For read cycles, pipelined SRAMs output data is temporarily stored by an
The MCM63P631 operates from a 3.3 V power supply, all inputs and outputs
Motorola, Inc. 1997
MCM63P631–117 = 4.5 ns access / 8.5 ns cycle (117 MHz)
MCM63P631–4.5 = 4.5 ns access / 10 ns cycle (100 MHz)
MCM63P631–7 = 7 ns access / 13.3 ns cycle (75 MHz)
MCM63P631–8 = 8 ns access / 15 ns cycle (66 MHz)
Single 3.3 V + 10%, – 5% Power Supply
ADSP, ADSC, and ADV Burst Control Pins
Selectable Burst Sequencing Order (Linear/Interleaved)
Internally Self–Timed Write Cycle
Byte Write and Global Write Control
Sleep Mode (ZZ)
PB1 Version 2.0 Compatible
Single–Cycle Deselect Timing
JEDEC Standard 100–Pin TQFP Package
microprocessors. It is organized as 64K words of 32 bits each.
MCM63P631
Order this document
CASE 983A–01
TQ PACKAGE
by MCM63P631/D
MCM63P631
TQFP
1

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mcm63p631 Summary of contents

Page 1

... For read cycles, pipelined SRAMs output data is temporarily stored by an edge–triggered output register and then released to the output buffers at the next rising edge of clock (K). The MCM63P631 operates from a 3.3 V power supply, all inputs and outputs are LVTTL compatible. MCM63P631–117 = 4.5 ns access / 8.5 ns cycle (117 MHz) MCM63P631– ...

Page 2

... LBO ADV K ADSC ADSP SA SA1 SA0 SGW SW SBa SBb SBc SBd SE1 SE2 SE3 G ZZ MCM63P631 2 FUNCTIONAL BLOCK DIAGRAM BURST COUNTER K2 CLR 2 16 ADDRESS REGISTER WRITE REGISTER a WRITE REGISTER b WRITE REGISTER c WRITE REGISTER ENABLE ENABLE REGISTER REGISTER 2 16 64K x 32 ARRAY ...

Page 3

... NC 79 DQb 78 DQb DQb DQb 74 73 DQb 72 DQb DQb 68 DQb DQa 63 DQa DQa 58 DQa 57 DQa 56 DQa DQa 52 DQa MCM63P631 3 ...

Page 4

... MCM63P631 4 Symbol Type ADSC Input Synchronous Address Status Controller: Active low, is used to latch a new external address. Used to initiate a READ, WRITE or chip deselect. ...

Page 5

... High–Z READ 5 X High–Z 1 High–Z READ 0 DQ READ 1 High–Z READ 0 DQ READ 1 High–Z READ 0 DQ READ 1 High–Z READ 0 DQ READ X High–Z WRITE X High–Z WRITE X High–Z WRITE X High–Z WRITE X High–Z WRITE MCM63P631 5 ...

Page 6

... SGW Read H Read H Write Byte a H Write Byte b H Write Byte c H Write Byte d H Write All Bytes H Write All Bytes L MCM63P631 6 G I/O Status L Data Out (DQx) H High–Z X High–Z X High–Z X High–Z 3rd Address (Internal X01 X10 X10 X ...

Page 7

... This device contains circuitry to protect the inputs against damage due to high static volt- ages or electric fields; however advised that normal precautions be taken to avoid application of any voltage higher than maxi- mum rated voltages to this high–impedance circuit. Max Unit Notes C/W 4 MCM63P631 7 ...

Page 8

... MCM63P631–7 MCM P MCM63P631–8 I SB2 – 0 SB3 MCM63P631–117 I SB4 ) MCM63P631–4.5 MCM MCM63P631–7 P MCM63P631–8 MCM63P631–117 I SB5 MCM63P631–4.5 MCM63P631–7 MCM63P631– – 0.2 V. Symbol I/O Min Typ Max Unit 3 ...

Page 9

... KHKH t KHKH — — KHKH 15 — MCM63P631 9 ...

Page 10

... MCM63P631 10 MOTOROLA FAST SRAM ...

Page 11

... MCM63P631 11 ...

Page 12

... SLEEP MODE A sleep mode feature, the ZZ pin, has been implemented on the MCM63P631. It allows the system designer to place the RAM in the lowest possible power condition by asserting ZZ. The sleep mode timing diagram shows the different modes of operation: Normal Operation, No READ/WRITE ...

Page 13

... K ADDR DQx Q(A) READS Figure 2. Configured as Non–Burst Pipelined Synchronous SRAM MOTOROLA FAST SRAM D Q(B) Q(C) Q( D(E) D(F) D(G) D(H) WRITES MCM63P631 13 ...

Page 14

... Motorola Memory Prefix Part Number Full Part Numbers — MCM63P631TQ117 MCM63P631 14 ORDERING INFORMATION (Order by Full Part Number) MCM 63P631 Blank = Trays Tape and Reel Speed (117 = 117 MHz, 4.5 = 4 ns) Package (TQ = TQFP) MCM63P631TQ4.5 MCM63P631TQ117R MCM63P631TQ4.5R MCM63P631TQ7 MCM63P631TQ8 MCM63P631TQ7R MCM63P631TQ8R ...

Page 15

... REF S 0.20 ––– 0.008 ––– R1 0.08 ––– 0.003 ––– R2 0.08 0.20 0.003 0.008 ––– 0 ––– MCM63P631 15 ...

Page 16

... Motorola, Inc. Motorola, Inc Equal Mfax is a trademark of Motorola, Inc. JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1, Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, MOTOROLA FAST SRAM MCM63P631/D ...

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