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Part: M27C405
Category:
Memory
-> ROM
-> OTP ROM
Description: 4 Mbit (512KB X8) OTP EPROM
Company: ST Microelectronics, Inc.
Datasheet: Download M27C405 datasheet File size : 45 kB
Request For quote: Find where to buy M27C405
Datasheet text preview:
M27C405
4 Mbit (512Kb x8) OTP EPROM
s
5V ± 10% SUPPLY VOLTAGE in READ OPERATION PIN COMPATIBLE with the 4 Mbit, SINGLE VOLTAGE FLASH MEMORY ACCESS TIME: 70ns LOW POWER CONSUMPTION: Active Current 30mA at 5MHz Standby Current 100µA
1 32
s
s s
PDIP32 (B)
PLCC32 (K)
s s
PROGRAMMING VOLTAGE: 12.75V ± 0.25V PROGRAMMING TIMES Typical 48sec. (PRESTO II Algorithm) Typical 27sec. (On-Board Programming)
s
ELECTRONIC SIGNATURE Manufacturer Code: 20h Device Code: B4h
TSOP32 (N) 8 x 20 mm
DESCRIPTION The M27C405 is a 4 Mbit EPROM offered in the OTP (one time programmable) range. It is ideally suited for microprocessor systems requiring large programs, in the application where the contents is stable and needs to be programmed only one time and is organised as 524,288 by 8 bits. The M27C405 is pin compatible with the industry standard 4 Mbit, single voltage Flash memory. It can be considered as a Flash Low Cost solution for production quantities. The M27C405 is offered in PDIP32, PLCC32 and TSOP32 (8 x 20 mm) packages.
Figure 1. Logic Diagram
VCC
VPP
19 A0-A18
8 Q0-Q7
E G
M27C405
VSS
AI01601
September 2000
1/14
M27C405
Figure 2A. DIP Connections Figure 2B. LCC Connections
A18 A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 VSS
1 2 3 4 5 6 7 8 M27C405 9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
VCC VPP A17 A14 A13 A8 A9 A11 G A10 E Q7 Q6 Q5 Q4 Q3
A7 A6 A5 A4 A3 A2 A1 A0 Q0
A 12 A 15 A 16 A 18 VCC VPP A 17 1 32 A14 A13 A8 A9 A11 G A10 E Q7 9 M27C405 25 17 Q1 Q2 VSS Q3 Q4 Q5 Q6
AI01603
AI01602
Figure 2C. TSOP Connections
Table 1. Signal Names
A0-A18 Q0-Q7 Address Inputs Data Outputs Chip Enable Output Enable Program Supply Supply Voltage Ground
A11 A9 A8 A13 A14 A17 VPP VCC A18 A16 A15 A12 A7 A6 A5 A4
1
32
8 9
M27C405 (Normal)
25 24
16
17
AI01604
G A10 E Q7 Q6 Q5 Q4 Q3 VSS Q2 Q1 Q0 A0 A1 A2 A3
E G VPP VCC VSS
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M 27C 405
Table 2. Absolute Maximum Ratings (1)
Symbol TA TBIAS TSTG VIO (2) VCC VA9 (2) VP P 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 V CC +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 Verify Program Inhibit Standby Electronic Signature
Note: X = VIH or VIL, V ID = 12V ± 0.5V.
E VIL VIL VIL Pulse VIH VIH VIH VIL
G VIL VIH VIH VIL VIH X VIL
A9 X X X X X X VID
VPP VCC or VSS VCC or VSS VPP VPP VPP VCC or VSS VCC
Q7-Q0 Data Out Hi-Z Data In Data Out Hi-Z Hi-Z Codes
Table 4. Electronic Signature
Identifier Manufacturer's Code Device Code A0 VIL VIH Q7 0 1 Q6 0 0 Q5 1 1 Q4 0 1 Q3 0 0 Q2 0 1 Q1 0 0 Q0 0 0 Hex Data 20h B4h
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Others parts begin by m2
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