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Details, datasheet, quote on part number:M27C1024-12F1
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Datasheet text preview:
M27C1024
1 Mb (64K x 16) UV EPROM and OTP EPROM
5V ± 10% SUPPLY VOLTAGE in READ OPERATION FAST ACCESS TIME: 35ns LOW POWER CONSUMPTION: Active Current 35mA Standby Current 100µA PROGRAMMING VOLTAGE: 12.75V ± 0.25V PROGRAMMING TIME of AROUND 6 sec. (PRESTO II Algorithm) ELECTRONIC SIGNATURE Manufacturer Code: 0020h Device Code: 008Ch
40
1
F DIP40W (F)
PLCC44 (C)
DESCRIPTION The M27C1024 is a 1 Mb EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large data or program storage. It is organized as 65,536 words by 16 bits. The FDIP40W (window ceramic fr it-seal package) has a 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 application where the content is programmed only one time and erasure is not required, the M27C1024 is offered in PLCC44 and TSOP40 (10 x 14mm) packages. Table 1. Signal Names
A0-A15 Q0-Q15 E G P VPP VCC VSS Address Inputs D ata Outputs C hip Enable Output Enable Program Program Supply Supply Voltage Ground
TSOP40 (N) 10 x 14mm
Figure 1. Logic Diagram
VCC
VPP
16 A0-A15
16 Q0-Q15
P E G
M27C1024
VSS
AI00702B
November 1997
1/14
M27C1024
Figure 2A. DIP Pin Connections
VPP E Q15 Q14 Q13 Q12 Q11 Q10 Q9 Q8 VSS Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 G 1 2 3 4 5 6 7 8 9 10 M27C1024 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC P NC A15 A14 A13 A12 A11 A10 A9 VSS A8 A7 A6 A5 A4 A3 A2 A1 A0
Figure 2B. LCC Pin Connections
Q12 Q11 Q10 Q9 Q8 VSS NC Q7 Q6 Q5 Q4
Q13 Q14 Q15 E VPP NC VCC P NC A15 A14 1 44 A13 A12 A11 A10 A9 VSS NC A8 A7 A6 A5 12 M27C1024 34 23 Q3 Q2 Q1 Q0 G NC A0 A1 A2 A3 A4
AI00704
AI00703
Warning: NC = Not Connected.
Warning: NC = Not Connected.
Figure 2C. TSOP Pin Connections
A9 A10 A11 A12 A13 A14 A15 NC P VCC VPP E DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 1 40 VSS A8 A7 A6 A5 A4 A3 A2 A1 A0 G DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 VSS
10 11
M27C1024 (Normal)
31 30
20
21
AI01582
Warning: NC = Not Connected. 2/14
DEVICE OPERATION The modes of operations of the M27C1024 are listed in the Operating Modes table. A single power supply is required in the read mode. All inputs are TTL levels except for Vpp and 12V on A9 for Electronic Signature. Read Mode The M27C1024 has two control functions, both of which must b e logically active in order to obtain data a t the outputs. Chip Enable (E) is the power control and should be used for device selection. Output Enable (G) is the output control and should be used to gate data to the output pins, independent of de vice selection. Assuming that the addresses are stable, the address access time (tAVQV) is equal to the delay from E to output (tELQV). Data is available at the output after a delay o f tOE from the falling edge of G, assuming that E has been low and the addresses have been stable for at least tAVQV-tGLQV. Standby Mode The M27C1024 has a standby mode which reduces the active current from 35mA to 100µA. The M27C1024 is placed in the standby mode by applying a TTL high signal to the E input. When in the standby mode, the outputs are in a high impedance state, independent of the G input.
M27C1024
Table 2. Absolute Maximum Ratings (1)
Symbol TA TBIAS TSTG VIO
(2)
Parameter Ambient Operating Temperature Temperature Under Bias Storage Temperature Input or Outp ut Voltages (except A9) Supply Voltage A9 Voltage Program Supply Voltage
(3)
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
VCC VA9
(2)
VPP
Notes: 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 SGS-THOMSON 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 Verify Program Inhibit Standby Electronic Signature
Note: X = VIH or VI L, VID = 12V ±0.5V
E VIL VIL VIL VIL VIH VIH VIL
G VIL VIH X VIL X X VIL
P VIH X VIL Pulse VIH X X VIH
A9 X X X X X X VID
VPP VCC or VSS VCC or VSS VPP VPP VPP VCC or VSS VCC
Q0 - Q15 Data Output Hi-Z Data Input Data Output 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 0 Q4 0 0 Q3 0 1 Q2 0 1 Q1 0 0 Q0 0 0 Hex Data 20h 8Ch
Note: Outputs Q8-Q15 are set to '0'.
3/14
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