- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄364677 > AN1241 (飛思卡爾半導體(中國)有限公司) Interfacing the MC68HC705J1A to 9356/9366 EEPROMs PDF資料下載
參數(shù)資料
| 型號： | AN1241 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | Interfacing the MC68HC705J1A to 9356/9366 EEPROMs |
| 中文描述： | 接口的MC68HC705J1A的九千三百六十六分之九千三百五十六的EEPROM |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 253K |
| 代理商： | AN1241 |
Order this document
by AN1241/D
AN1241
MOTOROLA, INC., 1995
AN1241/D
Interfacing the MC68HC705J1A to
9356/9366 EEPROMs
By Mark Glenewinkel
CSIC Applications
INTRODUCTION
This application note describes the hardware and software interface used to communicate between the
Freescale
MC68HC705J1A MCU and 9356/9366 EEPROM chips. The 93XX series of EEPROMs are an
industry standard used widely to store nonvolatile bits of information. The software listing in this application
note will work with 9356 and 9366 EEPROMs. The EEPROM bits are arranged in 128 or 256 16-bit
registers, respectively. With some modification, the software will work with other 93XX series EEPROMs.
Some of the applications in which EEPROMs can be utilized are listed below.
ID number for remote addressing or security
Storage of telecommunication information like phone number recall and speed dialing
Power down information storage for consumer electronics like TVs and VCRs
Reprogrammable calibration data for test/measurement equipment
The 93XX EEPROMs communicate with the outside world using a serial link. Since the MC68HC705J1A
does not have the hardware on chip to communicate to the EEPROM, a software driver is used. This
method bit programs an I/O port to properly transfer data to and from the EEPROM. A National
NM93C56N was used for testing the software routines in this application note.
HARDWARE INTERFACE
The 9356 is a very simple 8-pin device. Appendix A shows a typical connection between the
MC68HC705J1A and the 9356. The serial interface connection uses only four pins of the 9356. They are
as follows:
CS — Chip Select
SK — Serial Clock
DO — Serial Data Output
DI
— Serial Data Input
These signals must be clocked in a certain way in order to transfer the correct serial data to and from the
MC68HC705J1A.
F
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AN1241D | Interfacing the MC68HC705J1A to 9356/9366 EEPROMs |
| AN1432NT | AN1432NT - Variable output. low voltage operation shunt regulator |
| AN1434M | Analog IC |
| AN1434T | Analog IC |
| AN1458 | Voltage-Feedback Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN1241D | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Interfacing the MC68HC705J1A to 9356/9366 EEPROMs |
| AN-1244 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Photo-Diode Current-to-Voltage Converters |
| AN124952 | 制造商:AN# - MILITARY 功能描述: |
| AN124970 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| AN124971 | 制造商:AN# - MILITARY 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。