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Semiconductor MSM531655E
524,288-Double Words x 32-bit or 1,048,576-Words x 16-bit MaskROM 8Double Word x 32-Bit or 16Word x 16-Bit/Page Mode MASKROM
DESCRIPTION
The OKI MSM531655E is a 524,288-double words x 32-bit or 1,048,576-words x 16-bit CMOS Mask ROM with an asynchronous page read mode. Each page is organized 8 double words x 32-bit or 16 words x 16-bit. It operates on a single 5.0V power supply and is TTL compatible. The chip's asynchronous I/O requires no external clock assuring easy operation. A power-down mode provides low power dissipation when the chip is not selected. The CE and OE pins are provided as control signals that permit three-stated output allowing easy memory expansion on a system bus.The MSM531655E is suited for use as large capacity fixed memory for microcomputers and data terminals.
FEATURES
Single 5.0V power supply 524,288-double words x 32-bit / 1,048,576-words x 16-bit 8-double words(A2,A1,A0) or 16-words(A2,A1,A0,A-1) / Page Access time 100ns Max (Normal access) 50ns Max (Page access) Input/Output TTL compatible Tri-State output configurations Internal powerdown function Packages: (SSOP70-P-500/0.8-K) (MSM531655E-XXGS-K) 70-PIN PLASTIC SSOPP 70-PIN PLASTIC TSOP(Type II) (TSOP70-P-400/0.65-K) (MSM531655E-xxTS-K) Pin compatible OTP available
1
MSM531655E
PIN CONFIGURATION
A0 1 A1 2 A2 3 A3 4 A4 5 A5 6 Vcc 7 D0 8 D16 9 D1 10 D17 11 Vss 12 Vcc 13 D2 14 D18 15 D3 16 D19 17 D4 18 D20 19 D5 20 D21 21 Vss 22 Vcc 23 D6 24 D22 25 D7 26 D23 27 Vss 28 A6 29 A7 30 A8 31 A9 32 A10 33 A11 34 A12 35
70 NC 69 NC 68 NC 67 WORD 66 OE 65 CE 64 Vss 63 D31/A-1 62 D15 61 D30 60 D14 59 Vss 58 Vcc 57 D29 56 D13 55 D28 54 D12 53 D27 52 D11 51 D26 50 D10 49 Vss 48 Vcc 47 D25 46 D9 45 D24 44 D8 43 Vcc 42 NC 41 A18 40 A17 39 A16 38 A15 37 A14 36 A13 Pin Name D31/A-1 A0 to A18 D0 to D30 CE OE WORD VCC, VSS Function Data output / address input Address input Data output Chip enable Output enable Mode switch (H:DW/L:W) Power supply
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MSM531655E
BLOCK DIAGRAM
VCC VSS A-1 WORD
Output Switching Between 16 and 32 bits
CE
OE
CE
OE
Control
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18
X Decoder Address Buffer
Memory Cell Matrix 524,288 x 32 or 1,048,676 x 16
Multiplexer & Page Data Latch
Y Decoder
Output Buffer
D31 D15 D30 D14 D29 D13 D28 D12 D27 D11 D26 D10 D25 D9 D24 D8 D23 D7 D22 D6 D21 D5 D20 D4 D19 D3 D18 D2 D17 D1 D16 D0
FUNCTION TABLE
CE H L L L L L L L OE X H L L L L L L BYTE X X H H L L L L A-1/D31 X X
Input Inhibited (D31) Input Inhibited (D31)
D0--D15 Hi-Z Hi-Z D0 to D15 D0 to D15 D0 to D15 D16 to D31 D0 to D15 D16 to D31
D16--D31 Hi-Z Hi-Z D16 to D31 Hi-Z Hi-Z Hi-Z Hi-Z
DOUT Mode Hi-Z 32 bit
LSB -- A0 A0 A-1 A-1
MSB -- A18 A2 A18 A2
D16 to D31 32 bit(Page Mode) 16 bit 16 bit(Page Mode)
L H L H
3
MSM531655E
ABSOLUTE MAXIMUM LIMITS
Parameter Power Supply Voltage Input Voltage Output Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC VI VO PD Topr Tstg Per Package Topr = 25C -- -- Conditions to VSS Limits -0.3 to 7 -0.3 to VCC + 0.5 -0.3 to VCC + 0.5 1.0 0 to 70 -55 to 150 Unit V V V W C C
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage "H" Input Voltage "L" Input Voltage Operating Temperature Symbol VCC VSS VIH VIL Topr Conditions -- -- -- -- -- Limits Min. 4.5 0.0 2.2 -0.3 0 Typ. 5.0 0.0 5.0 0.0 -- Max. 5.5 0.0 5.5 0.8 70 Unit V V V V C
n DC CHARACTERISTICS
(VCC = 5V10%, Ta = 0 to 70C) Parameter "H" Output Voltage "L" Output Voltage Input Leakage Current Output Leakage Current Power Supply Current (Operating) Power Supply Current (Standby) Symbol VOH VOL ILI ILO ICC ICCS1 ICCS Conditions IOH = -400uA IOH = 2.1mA VI = 0 to VCC VO = 0 to VCC CE = VIH MIN CE = VIL, OE = VIH, tC = 100ns CE = VCC-0.2V CE = VIH MIN Min. 2.4 -- -10 -10 -- -- -- Limits Typ. -- -- -- -- -- -- -- Max. -- 0.4 10 10 120 50 500 Unit V V A A mA A A
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MSM531655E
AC CHARACTERISTICS
Test conditions
Parameter Input Signal Level Transtion Time Timing Reference Level Load Condition Conditions VIH=3.0V, VIL=0.0V tr=tf=5ns Input Voltage=1.5V Output Voltage=0.8V&2.0V CL=100pF+1TTL
Read Cycle
(Ta = 0 to 70C) Parameter Random Access Cycle time Random Address Access time Page Set up time Page Access Cycle time Page Access time CE Access time OE Access time CE Output Disable time OE Output Disable time Output Hold time Symbol tC tACC tPSET tPC tPAC tCE tOE tCHZ tOHZ tOH Conditions -- -- -- -- -- -- -- -- -- -- Limits Min. 100 -- 120 50 -- -- -- 0 0 0 Typ. -- -- -- -- -- -- -- -- -- -- Max. -- 100 -- -- 50 100 50 40 30 -- Unit ns ns ns ns ns ns ns ns ns ns
Read Cycle (Note1)
tC Address tACC OE tOE DOUT tOH
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MSM531655E
Read Cycle (Note2)
tC CE tCE OE tOE DOUT
tCHZ (Note 3)
tOHZ (Note 3)
Page Mode Read Cycle (Note4)
tPSET Address A3 - A17 tPC Address A0 - A2 tACC DOUT tPAC tPAC tPAC tPC tPC
Note)
1. 2. 3. 4.
CE is low level. Address is fixed before or at the same time when CE level falls. tCHZ & tOHZ indicate the time until floating. They are not determined by the output level. CE is low level and OE is low level.
I/O CAPACITANCE
Parameter Input Capacitance Output Capacitance Symbol CI CO Conditions VI=0V VO=0V Rated Value Min. -- -- Typ. -- -- Max. 8 10 Unit pF pF
6
Semiconductor
NOTICE
The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-todate. The outline of action and examples for application circuits described herein have been chosen as an explanation for the standard action and performance of the product. When planning to use the product, please ensure that the external conditions are reflected in the actual circuit, assembly, and program designs. When designing your product, please use our product below the specified maximum ratings and within the specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating temperature. Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified operating range. Neither indemnity against nor license of a third party's industrial and intellectual property right, etc. is granted by us in connection with the use of the product and/or the information and drawings contained herein. No responsibility is assumed by us for any infringement of a third party's right which may result from the use thereof. The products listed in this document are intended for use in general electronics equipment for commercial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). These products are not authorized for use in any system orapplication that requires special or enhanced quality and reliability characteristics nor in any system or application where the failure of such system or application may result in the loss or damage of property, or death or injury to humans. Such applications include, but are not limited to, traffic and automotive equipment, safety devices, aerospace equipment, nuclear power control, medical equipment, and life-support systems. Certain products in this document may need government approval before they can be exported to particular countries. The purchaser assumes the responsibility of determining the legality of export of these products and will take appropriate and necessary steps at their own expense for these. No part of the contents cotained herein may be reprinted or reproduced without our prior permission. All brand, company and product names are the trademarks or registered trademarks of their respective owners.
Copyright 1998 Oki Electric Industry Co., Ltd.
ADDRESSES & SEMICONDUCTOR WEB SITES
Ltd., OKI Electric Industry Co., Ltd. Device Business Group, 10-3, Shibaura, 4-chome, Minato-ku, Tokyo 108, Japan, Tel.: +81-(0)3-5445-6327, Fax.: +81-(0)3-5445-6328, http://www.oki.co.jp/OKI/DBG/english/index.htm (NOTE: URL is case sensitive) Group, OKI Semiconductor Group 785 North Mary Avenue, Sunnyvale, CA 94086, U.S.A., Tel.: +1-408-720-1900, Fax.: +1-408-720-1918, http://www.okisemi.com/ GmbH, OKI Electric Europe GmbH Head Office Europe, Hellersbergstrasse 2, D-41460 Neuss, Germany, Tel: +49-2131-15960, Fax: +49-2131-103539, http://www.oki-europe.de/ Ltd., OKI Electronics (Hong Kong) Ltd. Suite 1901-1&19, Tower 3, China Hong Kong City, 33 Canton Road, Tsimshatsui, Kowloon, Hong Kong, Tel.: +852-2-736-2336, Fax.: +852-2-736-2395 Ltd., OKI Semiconductor (Asia) Pte. Ltd. 78 Shenton Way 09-01, Singapore 0207, Tel.: +65-221-3722, Fax.: +65-323-5376 Ltd., OKI Semiconductor (Asia) Pte. Ltd. Taipei Branch, 7th Fl. No.260, Tun Hwa North Road, Taipei, Taiwan, R.O.C., Sumitomo-Flysun Building, Tel.: +886-2-2719-2561, Fax.: +886-2-2715-2892 http://www.oki.net.tw/
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