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Semiconductor MSM538022E
524,288-Word x 16-Bit or 1,048,576-Word x 8-Bit MASKROM
DESCRIPTION
The OKI MSM538002E is a high-speed CMOS Mask ROM that can electrically switch between 524,288-word x 16-bit or 1,048,576-word x 8-bit configurations. The MSM538002E 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 MSM531602C is suited for use as large capacity fixed memory for microcomputers and data terminals.
FEATURES
Single 5.0V power supply 524,288-words x 16-bit / 1,048,576-words x 8-bit Access time 80ns MAX Input/Output TTL compatible Tri-State output configurations Internal powerdown function Packages: 42-PIN PLASTIC DIP (DIP42-P-600-2.54) (MSM538002E-xxRS) 44-PIN PLASTIC SOP (SOP44-P-600-1.27-K) (MSM538002E-xxGS-K) 44-PIN PLASTIC TSOP (TSOPII44-P-400-0.8-K) (MSM538002E-xxTS-AK) 8MEPROM (42-PIN) pin compatible
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MSM538022E
PIN CONFIGURATION
NC 1 A18 1 A17 2 A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 A0 10 CE 11 VSS 12 OE 13 D0 14 D8 15 D1 16 D9 17 D2 18 D10 19 D3 20 D11 21 42PIN DIP 42 NC 41 A8 40 A9 39 A10 38 A11 37 A12 36 A13 35 A14 34 A15 33 A16 32 BYTE 31 VSS 30 D15/A-1 29 D7 28 D14 27 D6 26 D13 25 D5 24 D12 23 D4 22 VCC A18 2 A17 3 A7 4 A6 5 A5 6 A4 7 A3 8 A2 9 A1 10 A0 11 CE 12 VSS 13 OE 14 D0 15 D8 16 D1 17 D9 18 D2 19 D10 20 D3 21 D11 22 44PIN SOP/ TSOP
44 NC 43 NC 42 A8 41 A9 40 A10 39 A11 38 A12 37 A13 36 A14 35 A15 34 A16 33 BYTE 32 VSS 31 D15/A-1 30 D7 29 D14 28 D6 27 D13 26 D5 25 D12 24 D4 23 VCC
Pin Name D15/A-1 A0 to A18 D0 to D15 CE OE BYTE VCC, VSS
Function Data output / address input Address input Data output Chip enable Output enable Mode switch Power supply
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MSM538022E
BLOCK DIAGRAM
VCC VSS A-1 BYTE
Output Switching Between 8 and 16 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
Memory Cell Matrix 524,288-Word x 16 or 1,048,576 x 8
Address Buffer
Multiplexer
Y Decoder
Output Buffer
D0 D1
D2 D3
D4 D5
D6 D7
D8
D10 D12 D14 D9 D11 D13 D15
FUNCTION TABLE
CE H L L L L OE X H L L L BYTE X X H L L A-1/D15 X X
Input Inhibited (D15)
D0 to D7 Hi-Z Hi-Z D0 to D7 D0 to D7 D8 to D15
D8 to D15 Hi-Z Hi-Z D8 to D15 Hi-Z Hi-Z
DOUT Mode Hi-Z 16 bit 8 bit
LSB -- A0 A-1
MSB -- A18 A18
L H
3
MSM538022E
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
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 Rated Value -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
Rated Value Min. 4.75 0.0 2.2 -0.3 0 Typ. 5.0 0.0 5.0 0.0 -- Max. 5.25 0.0 VCC +0.5 0.8 70
Parameter Power Supply Voltage "H" Input Voltage "L" Input Voltage Operating Temperature
Symbol VCC VSS VIH VIL Topr
Conditions -- -- -- -- --
Unit V V V V C
DC Characteristics
(VCC = 5V5%, 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 = -400A IOH = 2.1mA VI = 0 to VCC VO = 0 to VCC CE = VIH MIN CE = VIL,OE = VIH,tC = 80ns CE = VCC-0.2V CE = VIH MIN Rated Value Min. Typ. Max. -- -- 2.4 -- -- 0.4 -10 -10 -- -- -- -- -- -- -- -- 10 10 60 50 500 Unit V V A A mA A A
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MSM538022E
AC CHARACTERISTICS
Timing 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=50pF+1TTL
Read Cycle
(Ta = 0 to 70C) Parameter Cycle time Address Access time CE Access time OE Access time CE Output Disable time OE Output Disable time Output Hold time Symbol tC tACC tCE tOE tCHZ tOHZ tOH Conditions -- -- -- -- -- -- -- Rated Value Min. 80 -- -- -- 0 0 0 Typ. -- -- -- -- -- -- -- Max. -- 80 80 40 35 30 -- Unit ns ns ns ns ns ns ns
5
MSM538022E
Read Cycle (Note 1)
tC Address tACC OE tOE tOH tOHZ (Note 3) DOUT
Read Cycle (Note 2)
tC CE tCE OE tOE DOUT
tCHZ (Note 3)
Note)
1. CE is low level. 2. Address is fixed before or at the same time when CE level falls. 3. tCHZ & tOHZ indicate the time until floating. They are not determined by the output 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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