AT27C512R-45PU

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AT27C512R-45PU

IC EPROM 512KBIT PARALLEL 28DIP

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배송 준비 24 시간

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사양

Part Status Active
Base Product Number AT27C512
DigiKey Programmable Verified
Memory Type Non-Volatile
Memory Format EPROM
Technology EPROM - OTP
Memory Size 512Kbit
Memory Organization 64K x 8
Memory Interface Parallel
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TC)
Mounting Type Through Hole
Package 28-DIP (0.600", 15.24mm)
Supplier Device Package 28-PDIP
Packaging Tube
Access Time 45 ns

개요

Description

AT27C512R-45PU is a 512-kbit parallel CMOS EPROM from Atmel (now Microchip). It stores firmware or data as nonvolatile memory with a 64K × 8 organization (A0–A15 address, D0–D7 data).
Key features:
- Package: 28-pin Plastic DIP (PU)
- Supply and timing: Vcc = 5V; access time 45 ns (the -45 denotes speed)
- Interface: CE and OE for read control; Vpp ~12.5V required for programming
- Memory organization: 64K × 8
- Erasure/programming: UV-erasable EPROM (requires ultraviolet light to erase; rewritable via a dedicated programmer)
- Typical usage: firmware storage and code ROM in older microcontrollers and embedded systems
Note: It is not a modern EEPROM and requires a high-voltage program mode and UV erase to rewrite.

Features

Key features of AT27C512R-45PU:
- 512 Kibit UV-erasable EPROM (64K x 8)
- Access time: 45 ns
- Organization: 16 address lines (A0–A15), 8 data I/O (DQ0–DQ7)
- Supplies: Vcc = 5V; Vpp = ~12.5V for programming
- Controls: Chip Enable (CE), Output Enable (OE), Write Enable (WE)
- Packaging: 28-pin Plastic DIP (PU)
- UV erase: quartz window; erase with UV light, then reprogram
- Industrial temperature option: -40°C to 85°C (suffix -R)
- Nonvolatile, suitable for firmware/code storage
Notes: This is a one-time-programmable EPROM that requires a higher programming voltage and UV exposure to erase; normal operation uses 5V.

Package

Plastic DIP (DIP-28), through-hole package. The -PU suffix indicates Plastic DIP 28-pin packaging.

Pinout

- Pin count: 28 pins (PDIP-28).
- Function: 512 kbit (64K × 8) CMOS EPROM with parallel access. Uses address lines A0–A15, data I/O DQ0–DQ7, and control lines CE, OE, WE. Powered by Vcc and GND; programming requires Vpp (EPROM programming voltage).

Manufacturer

Manufacturer: Atmel Corporation (now part of Microchip Technology).
What kind of company: A semiconductor company that designs and manufactures memory ICs (EPROM/EPROM-like devices) and other integrated circuits, including microcontrollers.

Application

- Firmware storage for microcontrollers/embedded systems
- Boot ROM for consumer electronics, printers, set-top boxes
- Automotive and industrial control units
- Telecommunication and networking equipment
- Prototyping and legacy systems needing fixed nonvolatile code

Equivalent

Equivalent parts (512K-bit, 5V, 28‑pin DIP, 45ns) from other vendors include:
- AMD AM27C512-45 (AM27C512)
- ST M27C512-45 (M27C512)
- NEC/Dallas D27C512-45 (D27C512)
- Winbond W27C512-45 (W27C512)
- Macronix MX27C512-45 (MX27C512)
Note: verify exact pinout and package (PU/DIP-28) and 5V supply before substituting.

배송

배송 방법We

DHL, FedEx, TNT, UPS 또는 선택한 다른 운송업체를 통해 글로벌 배송 서비스를 제공합니다.


배송 요금 참조 (DHL/FedEx):

DHL은: 배송 비용은 $25-$45 (0.5kg)에서 2-5 영업일의 추정적 배달 시간이 있습니다.

FedEx는: 배송 비용은 $25-$40 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

UPS는: 배송 비용은 $25-$45 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

TNT는: 배송 비용은 $25-$65 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.

EMS는: 배송 비용은 $30-$50 (0.5kg)에서 7-15 영업일의 추정적 배달 시간을 제공합니다.

등록된 항공우편: 배송 비용은 $2-$4 (0.1kg), 예상 배달 시간 5-20 영업일.

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