M2732A STMICROELECTRONICS | Alldatasheet
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Technical content
E VSS Figure 1. Logic Diagram
DESCRIPTION
The M2732A is a 32,768 bit UV erasable and electrically programmable memory EPROM. It is organized as 4,096 words by 8 bits. The M2732A with its single 5V power supply and with an access time of 200 ns, is ideal suited for applications where fast turn around and pattern experimentation one important requirements. The M2732A is honsed in a 24 pin Window Ceramic Frit-Seal Dual-in-Line package. The transparent lid allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can be then written to the clerice by following the programming procedure. A0 - A11 Address Inputs Q0 - Q7 Data Outputs E Chip Enable GV PP Output Enable / Program Supply VCC Supply Voltage VSS Ground Table 1. Signal Names
Figure 2. DIP Pin Connections may affect device reliability. Refer also to the SGS-THOMSON SURE Program and other relevant quality documents. Table 2. Absolute Maximum Ratings control and should be used for device selection. pendent of device selection. from a particular memory device.
”1" is by ultraviolet light erasure. required for the address and data inputs are TTL. the simplicity of the programming requirements. E input programs the paralleled 2732As. which should be removed before erasure. Table 3. Operating Modes
Notes:1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP .
- Sampled only, not 100% tested.
Table 6. Read Mode AC Characteristics (1) Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP . Table 5. Read Mode DC Characteristics (1)
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP . Table 7. Programming Mode DC Characteristics (1) Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP . Table 8. Programming Mode AC Characteristics (1)
Figure 6. Programming and Verify Modes AC Waveforms
A L B1 B e1 D S E1 E N Cα eA Symb mm inches Typ Min Max Typ Min Max A 5.71 0.225 A1 0.50 1.78 0.020 0.070 A2 3.90 5.08 0.154 0.200 B 0.40 0.55 0.016 0.022 B1 1.17 1.42 0.046 0.056 C 0.22 0.31 0.009 0.012 D 32.30 1.272 E 15.40 15.80 0.606 0.622 E1 13.05 13.36 0.514 0.526 eA 16.17 18.32 0.637 0.721 L 3.18 4.10 0.125 0.161 S 1.52 2.49 0.060 0.098 α 4° 15° 4° 15° N2 4 2 4 FDIP24W Drawing is not to scale FDIP24W - 24 pin Ceramic Frit-seal DIP , with window M2732A
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. M2732A