M27W401 STMicroelectronics, M27W401 Datasheet
M27W401
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M27W401 Summary of contents
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... ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: 41h DESCRIPTION The M27W401 is a low voltage 4 Mbit EPROM of- fered in the two ranges UV (ultra violet erase) and OTP (one time programmable ideally suited for microprocessor systems requiring large data or program storage and is organised as 524,288 by 8 bits ...
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... Figure 2C. TSOP Connections A11 A13 A14 A17 A18 M27W401 25 (Normal A16 A15 A12 AI01592 2/15 Figure 2B. LCC Connections Table 1. Signal Names A0-A18 Q0- A10 A14 A13 A8 A9 M27W401 25 A11 G A10 AI01591 Address Inputs Data Outputs Chip Enable Output Enable Program Supply Supply Voltage Ground ...
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... Table 4. Electronic Signature Identifier A0 Q7 Manufacturer’s Code Device Code (1) Parameter (3) +2V for a period less than 20ns M27W401 Value Unit – –50 to 125 C –65 to 150 C – – –2 to 13.5 V – Q7- Data Out Hi Data Data Out Codes Hex Data 0 0 20h 0 1 ...
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... Output Capacitance OUT Note: 1. Sampled only, not 100% tested. DEVICE OPERATION The operating modes of the M27W401 are listed in the Operating Modes table. A single power supply is required in the read mode. All inputs are TTL levels except for V and 12V on A9 for Electronic PP Signature ...
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... In addi- tion, a 4.7 F bulk electrolytic capacitor should be used between V CC es. The bulk capacitor should be located near the power supply connection point.The purpose of the bulk capacitor is to overcome the voltage drop caused by the inductive effects of PCB traces. M27W401 Min Max Unit ...
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... AXQX OH to Output Transition Note must be applied simultaneously with or before Sampled only, not 100% tested. 3. Speed obtained with High Speed AC measurement conditions. Figure 5. Read Mode AC Waveforms A0-A18 E G Q0-Q7 6/15 ( M27W401 (3) -80 Test Condition V = 3. 2. Min Max Min ...
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... M27C4001 on the same pro- gramming equipment applying 12.75V on V 6.25V the use of the same PRESTO II CC algorithm. When delivered (and after each ‘1’s erasure for UV EPROM), all bits of the M27W401 are in the ’1’ state. Data is introduced by selectively program- (1) = 12.75V 0.25V) PP Test Condition ...
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... Programming of multiple M27W401s in parallel with different data is also easily accomplished. Ex- cept for E, all like inputs including G of the parallel M27W401 may be common. A TTL low level pulse applied to a M27W401’s E input, with V 12.75V, will program that M27W401. A high level E input inhibits the other M27W401s from being programmed ...
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... M27W401 in about 3 years, while it would take approximately 1 week to cause erasure when exposed to direct sunlight. If the M27W401 exposed to these 5 C am- types of lighting conditions for extended periods of time suggested that opaque labels be put over the M27W401 window to prevent unintentional erasure ...
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... For a list of available options (Speed, Package, etc...) or for further information on any aspect of this de- vice, please contact the STMicroelectronics Sales Office nearest to you. Table 12. Revision History Date July 1999 First Issue FDIP42W Package Dimension, L Max added (Table 13) 03/10/00 TSOP32 Package Dimension changed (Table 16 Temperature Range deleted 10/15 M27W401 - 3.0V to 3.6V. CC Revision Details ...
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... M27W401 inches Min Max 0.225 0.020 0.055 0.154 0.180 0.153 0.177 0.016 0.022 – – 0.009 0.012 1.643 1.655 – – – – 0.514 0.526 – ...
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... M27W401 Table 14. PDIP32 - 32 lead Plastic DIP, 600 mils width, Package Mechanical Data Symb Typ 1. 41.78 D2 38.10 E 15.24 E1 13.59 e1 2.54 eA 15.24 eB 15. Figure 9. PDIP32 - 32 lead Plastic DIP, 600 mils width, Package Outline Drawing is not to scale. 12/15 mm Min Max Typ – 5.08 0.38 – ...
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... E1 E D2/E2 F 0.51 (.020) 1.14 (.045) R M27W401 inches Min Max 0.100 0.140 0.060 0.095 – 0.015 0.013 0.021 0.026 0.032 0.485 0.495 0.447 0.455 0.390 0.430 0.585 0.595 ...
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... M27W401 Table 16. TSOP32 - 32 lead Plastic Thin Small Outline 20mm, Package Mechanical Data Symbol Typ A A1 0.050 A2 0.950 B 0.150 C 0.100 D 19.800 D1 18.300 e 0.500 E 7.900 L 0.500 CP N Figure 11. TSOP32 - 32 lead Plastic Thin Small Outline 20mm, Package Outline 1 N DIE TSOP-a Drawing is not to scale. ...
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... All other names are the property of their respective owners. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A . 2000 STMicroelectronics - All Rights Reserved http://w ww.st.com M27W401 15/15 ...