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Part: M27C512-25-1
Category:
Memory
-> ROM
-> OTP ROM
Description: 512 Kbit (64KB X8) uv EPROM And OTP EPROM
Company: ST Microelectronics, Inc.
Datasheet: Download M27C512-25-1 datasheet File size : 45 kB
Request For quote: Find where to buy M27C512-25-1
Datasheet text preview:
M27C512
512 Kbit (64Kb x8) UV EPROM and OTP EPROM
s
5V ± 10% SUPPLY VOLTAGE in READ OPERATION ACCESS TIME: 45ns LOW POWER "CMOS" CONSUMPTION: Active Current 30mA Standby Current 100µA
28
s s
28
s s s
PROGRAMMING VOLTAGE: 12.75V ± 0.25V PROGRAMMING TIMES of AROUND 6sec. ELECTRONIC SIGNATURE Manufacturer Code: 20h Device Code: 3Dh
1
1
FDIP28W (F)
PDIP28 (B)
DESCRIPTION The M27C512 is a 512 Kbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for applications where fast turn-around and pattern experimentation are important requirements and is organized as 65,536 by 8 bits. The FDIP28W (window ceramic frit-seal package) has transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C512 is offered in PDIP28, PLCC32 and TSOP28 (8 x 13.4 mm) packages.
PLCC32 (C)
TSOP28 (N) 8 x 13.4 mm
Figure 1. Logic Diagram
VCC
16 A0-A15
8 Q0-Q7
E GVPP
M27C512
VSS
AI00761B
August 2002
1/18
M27C512
Figure 2A. DIP Connections Figure 2B. LCC Connections
AI00762
VSS DU Q3 Q4 Q5
AI00763
A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 VSS
1 2 3 4 5 6 7 M27C512 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
VCC A14 A13 A8 A9 A11 GVPP A10 E Q7 Q6 Q5 Q4 Q3
A7 A 12 A 15 DU VCC A 14 A 13 1 32 A6 A5 A4 A3 A2 A1 A0 NC Q0 A8 A9 A11 NC GVPP A10 E Q7 Q6 9 M27C512 25 17 Q1 Q2
A0-A15 Q0-Q7 E GVPP V CC VSS NC DU
Figure 2C. TSOP Connections
Table 1. Signal Names
Address Inputs Data Outputs Chip Enable Output Enable / Program Supply Supply Voltage Ground Not Connected Internally Don't Use
GVPP A11 A9 A8 A13 A14 VCC A15 A12 A7 A6 A5 A4 A3
22
21
28 1
M27C512
15 14
7
8
AI00764B
A10 E Q7 Q6 Q5 Q4 Q3 VSS Q2 Q1 Q0 A0 A1 A2
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M 27C 512
Table 2. Absolute Maximum Ratings (1)
Symbol TA TBIAS TSTG VIO (2) VCC VA9 (2) VPP Parameter Ambient Operating Temperature (3) Temperature Under Bias Storage Temperature Input or Output Voltage (except A9) Supply Voltage A9 Voltage Program Supply Voltage Value 40 to 125 50 to 125 65 to 150 2 to 7 2 to 7 2 to 13.5 2 to 14 Unit °C °C °C V V V V
Note: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. 2. Minimum DC voltage on Input or Output is 0.5V with possible undershoot to 2.0V for a period less than 20ns. Maximum DC voltage on Output is VCC +0.5V with possible overshoot to VCC +2V for a period less than 20ns. 3. Depends on range.
Table 3. Operating Modes
Mode Read Output Disable Program Program Inhibit Standby Electronic Signature
Note: X = VIH or VIL, VID = 12V ± 0.5V.
E VIL VIL VIL Pulse VIH VIH VIL
GVPP VIL VIH VPP VPP X VIL
A9 X X X X X VID
Q7-Q0 Data Out Hi-Z Data In Hi-Z Hi-Z Codes
Table 4. Electronic Signature
Identifier Manufacturer's Code Device Code A0 VIL VIH Q7 0 0 Q6 0 0 Q5 1 1 Q4 0 1 Q3 0 1 Q2 0 1 Q1 0 0 Q0 0 1 Hex Data 20h 3Dh
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Others parts begin by m2
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