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AT27C040-70PU The Microchip Technology AT27C040-70PU is a 4Mbit EPROM - OTP memory device with a 70ns access time. It operates from a 5V supply and is available in a 32-DIP Through Hole package.
Mfr Part #:

AT27C040-70PU

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology AT27C040-70PU is a 4Mbit EPROM - OTP memory device with a 70ns access time. It operates from a 5V supply and is available in a 32-DIP Through Hole package.
✓ Total Stock: 3,905 pcs
$ Price Range: $1.28

AT27C040-70PU Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,400 pcs
On Request
2400 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,505 pcs
On Request
1505 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

AT27C040-70PU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
ESD Protection
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Supplier Device Package
Supplier Package
Tape & Reel
Technology
Voltage
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AT27C040-70PU Description

Short technical summary and product information.

The Microchip Technology AT27C040-70PU is a high-performance, low-power 4,194,304-bit One-Time Programmable Read-Only Memory (OTP EPROM). It is organized as 512K by 8 bits and offers a fast read access time of 70ns, suitable for high-performance microprocessor systems.

 

This device operates from a single 5V (±10%) power supply. It features CMOS and TTL-compatible inputs and outputs, along with two-line control (CE, OE) to prevent bus contention. The AT27C040 utilizes Atmel's scaled CMOS technology, providing low active power consumption (typically 8mA) and very low standby power consumption (less than 10µA).

 

Designed for reliability, the AT27C040 includes 2000V ESD protection and 200mA latchup immunity. It supports a rapid programming algorithm, typically programming at 100µs/byte. The device is available in a JEDEC standard 32-lead PDIP package, suitable for through-hole mounting.

 

This industrial temperature range EPROM is also available in a green (Pb/halide-free) packaging option, making it suitable for a wide range of applications requiring non-volatile data storage.

AT27C040-70PU Quick Information

Product Type: EPROM - OTP Memory
Canonical Name: AT27C040-70PU 4Mbit Parallel EPROM - OTP Memory
Subcategory: Memory

AT27C040-70PU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb/halide-free

AT27C040-70PU Estimated Pricing

Qty Low High
1+ $1.28 $1.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

AT27C040-70PU Features

  • Fast 70ns read access time.
  • Low-power CMOS operation.
  • 4Mbit density, organized 512K x 8.
  • 5V ±10% supply voltage.
  • 32-lead PDIP through-hole package.

AT27C040-70PU Applications

  • Firmware storage for embedded systems.
  • Boot code memory for microcontrollers.
  • Code storage in industrial control modules.
  • Configuration memory for networking equipment.
  • Legacy system firmware replacement.

AT27C040-70PU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the memory size and organization of the AT27C040-70PU?

The AT27C040-70PU is a 4Mbit EPROM organized as 512K x 8 bits.

What is the access time of the AT27C040-70PU?

The access time is 70 ns.

What is the operating voltage range for the AT27C040-70PU?

The operating voltage range is 4.5V to 5.5V.

What is the operating temperature range of the AT27C040-70PU?

The operating temperature range is -40°C to 85°C (case temperature).

What package does the AT27C040-70PU come in?

The AT27C040-70PU is offered in a 32-pin PDIP (0.600" body width) package for through-hole mounting.

Is the AT27C040-70PU RoHS compliant?

RoHS compliance data is unverified; the part is listed as RoHS3 compliant with low confidence.

What is the programming time for the AT27C040-70PU?

The typical programming time is 100 µs per byte.

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