Datasheet > 28C04AFTI/P

28C04AFTI/P

更新时间： 2024-11-20 03:55:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
10页	127K
描述
4K (512 x 8) CMOS EEPROM

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中文翻译

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数据手册

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28C04AFTI/P 数据手册

Obsolete Device

28C04A

4K (512 x 8) CMOS EEPROM

FEATURES

PACKAGE TYPES

• Fast Read Access Time—150 ns

• CMOS Technology for Low Power Dissipation

- 30 mA Active

DIP

• 1

24 Vcc

23 A8

22 NC

21 WE

20 OE

19 NC

18 CE

17 I/O7

16 I/O6

15 I/O5

14 I/O4

13 I/O3

- 100 µA Standby

• Fast Byte Write Time—200 µs or 1 ms

• Data Retention >200 years

• Endurance - Minimum 10⁴Erase/Write Cycles

- Automatic Write Operation

- Internal Control Timer

I/O0

I/O1

I/O2

V_SS12

- Auto-Clear Before Write Operation

- On-Chip Address and Data Latches

• Data Polling

PLCC

• Chip Clear Operation

29 A8

A1 10

A0 11

28 NC

27 NC

26 NC

25 OE

24 NC

23 CE

22 I/O7

21 I/O6

• Enhanced Data Protection

- VCC Detector

- Pulse Filter

- Write Inhibit

NC 12

I/O0 13

• 5-Volt-Only Operation

• Organized 512x8 JEDEC standard pinout

- 24-pin Dual-In-Line Package

- 32-pin PLCC Package

• Pin 1 indicator on PLCC on top of package

• Available for Extended Temperature Ranges:

- Commercial: 0°C to +70°C

- Industrial: -40°C to +85°C

BLOCK DIAGRAM

I/O0

I/O7

DESCRIPTION

VSS

Data Protection

The Microchip Technology Inc. 28C04A is a CMOS 4K

non-volatile electrically Erasable and Programmable

Read Only Memory (EEPROM). The 28C04A is

accessed like a static RAM for the read or write cycles

without the need of external components. During a

“byte write”, the address and data are latched inter-

nally, freeing the microprocessor address and data bus

for other operations. Following the initiation of write

cycle, the device will go to a busy state and automati-

cally clear and write the latched data using an internal

control timer. To determine when a write cycle is com-

plete, the 28C04A uses Data polling. Data polling

allows the user to read the location last written to when

the write operation is complete. CMOS design and pro-

cessing enables this part to be used in systems where

reduced power consumption and reliability are

required. A complete family of packages is offered to

provide the utmost flexibility in applications.

VCC

Circuitry

Chip Enable/

Output Enable

Control Logic

Input/Output

Buffers

Auto Erase/Write

Timing

Data

Poll

Program Voltage

Generation

Y Gating

Decoder

4K bit

Cell Matrix

Decoder

2004 Microchip Technology Inc.

DS11126H-page 1

12 3 4 5 6 7...10

中文翻译

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与28C04AFTI/P相关器件

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28C04AT-15I/L	MICROCHIP	获取价格	4K (512 x 8) CMOS EEPROM
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