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                                                                                                  1. Home
                                                                                                  2. Semiconductors - ICs
                                                                                                  3. Memory
                                                                                                  4. EPROM
                                                                                                  Print Page

                                                                                                  AT27C040-70PU

                                                                                                  EPROM, One Time Programmable, 70 ns, 512K x 8bit, 4 Mbit, 4.5 V to 5.5 V, DIP-32

                                                                                                  MICROCHIP AT27C040-70PU
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoAT27C040-70PU
                                                                                                  Newark Part No.68T4268
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  5 In Stock

                                                                                                  Need more?

                                                                                                  Same day shipping
                                                                                                  Order before 9pm EST standard shipping
                                                                                                  Available in quantity shown
                                                                                                  QuantityPrice
                                                                                                  1+$12.280
                                                                                                  10+$12.060
                                                                                                  36+$11.820
                                                                                                  60+$11.660
                                                                                                  108+$11.520
                                                                                                  252+$11.360
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  $12.28
                                                                                                  Enter Your Part No/Line Note
                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                                                                                                  This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                                                                                                  Product Information

                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoAT27C040-70PU
                                                                                                  Newark Part No.68T4268
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Memory Size4Mbit
                                                                                                  Memory Density4Mbit
                                                                                                  Memory Configuration512K x 8bit
                                                                                                  EPROM Memory Configuration512K x 8bit
                                                                                                  No. of Pins32Pins
                                                                                                  Memory Case StyleDIP
                                                                                                  IC Case / PackageDIP
                                                                                                  Supply Voltage Min4.5V
                                                                                                  Supply Voltage Max5.5V
                                                                                                  IC MountingThrough Hole
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Access Time70ns
                                                                                                  Operating Temperature Max85°C
                                                                                                  Product Range-
                                                                                                  MSL-
                                                                                                  SVHCNo SVHC (25-Jun-2025)

                                                                                                  Product Overview

                                                                                                  The AT27C040-70PU is a low-power, high-performance, 4194304-bit, 1-time Programmable Read-Only Memory (OTP EPROM) organized as 512K by 8 bits. This requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 70ns, eliminating the need for speed reducing wait states on high-performance microprocessor systems. The scaled CMOS technology provides low active power consumption and fast programming. Power consumption is typically 8mA in active mode and less than 10μA in standby mode. It features to ensure high quality and efficient production use. The rapid programming algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100μs/byte. The integrated product identification code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper programming algorithms and voltages.

                                                                                                  • Low-power CMOS operation
                                                                                                  • 100μA Maximum standby
                                                                                                  • 30mA Maximum active at 5MHz
                                                                                                  • 5V ±10% Supply
                                                                                                  • High-reliability CMOS technology
                                                                                                  • 100μs/byte (typical) Rapid programming algorithm
                                                                                                  • Industrial temperature range

                                                                                                  Applications

                                                                                                  Computers & Computer Peripherals

                                                                                                  Warnings

                                                                                                  ESD sensitive device, take proper precaution while handling the device. Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

                                                                                                  Technical Specifications

                                                                                                  Memory Size

                                                                                                  4Mbit

                                                                                                  Memory Configuration

                                                                                                  512K x 8bit

                                                                                                  No. of Pins

                                                                                                  32Pins

                                                                                                  IC Case / Package

                                                                                                  DIP

                                                                                                  Supply Voltage Max

                                                                                                  5.5V

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  Operating Temperature Max

                                                                                                  85°C

                                                                                                  MSL

                                                                                                  -

                                                                                                  Memory Density

                                                                                                  4Mbit

                                                                                                  EPROM Memory Configuration

                                                                                                  512K x 8bit

                                                                                                  Memory Case Style

                                                                                                  DIP

                                                                                                  Supply Voltage Min

                                                                                                  4.5V

                                                                                                  IC Mounting

                                                                                                  Through Hole

                                                                                                  Access Time

                                                                                                  70ns

                                                                                                  Product Range

                                                                                                  -

                                                                                                  SVHC

                                                                                                  No SVHC (25-Jun-2025)

                                                                                                  Technical Docs (5)

                                                                                                  One Page Summary EN

                                                                                                  Technical Data Sheet EN

                                                                                                  Product Change Notice EN

                                                                                                  CAD CadSoft_EAGLE EN

                                                                                                  Technical Data Sheet EN

                                                                                                  Associated Products

                                                                                                  2 Products Found

                                                                                                  Legislation and Environmental

                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:Unknown
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (25-Jun-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

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