- 您現在的位置：買賣IC網 > PDF目錄371046 > MC68C912B32FU8 (MOTOROLA INC) 16-Bit Microcontroller PDF資料下載
參數資料
| 型號： | MC68C912B32FU8 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 37/128頁 |
| 文件大?。?/td> | 748K |
| 代理商： | MC68C912B32FU8 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁當前第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁
MC68HC912B32
MC68HC912B32TS/D
MOTOROLA
37
7 Flash EEPROM
The 32-Kbyte Flash EEPROM module for the MC68HC912B32 serves as electrically erasable and pro-
grammable, non-volatile ROM emulation memory. The module can be used for program code that must
either execute at high speed or is frequently executed, such as operating system kernels and standard
subroutines, or it can be used for static data which is read frequently. The Flash EEPROM is ideal for
program storage for single-chip applications allowing for field reprogramming.
7.1 Overview
The Flash EEPROM array is arranged in a 16-bit configuration and may be read as either bytes, aligned
words or misaligned words. Access time is one bus cycle for byte and aligned word access and two bus
cycles for misaligned word operations.
The Flash EEPROM module requires an external program/erase voltage (V
FP
) to program or erase the
Flash EEPROM array. The external program/erase voltage is provided to the Flash EEPROM module
via an external V
FP
pin. To prevent damage to the flash array, V
FP
should always be greater than or
equal to V
DD
0
.5V. Programming is by byte or aligned word. The Flash EEPROM module supports bulk
erase only.
The Flash EEPROM module has hardware interlocks which protect stored data from accidental corrup-
tion. An erase- and program-protected 2-Kbyte block for boot routines is located at $7800–$7FFF or
$F800–$FFFF depending upon the mapped location of the Flash EEPROM array. (The protected boot
block on the initial mask sets, G86W and G75R, is 1-Kbyte and is located at $7C00–$7FFF or $FC00–
$FFFF.)
7.2 Flash EEPROM Control Block
A 4-byte register block controls the Flash EEPROM module operation. Configuration information is
specified and
programmed independently from the contents of the Flash EEPROM array. At reset, the
4-byte register section starts at address $00F4.
7.3 Flash EEPROM Array
After reset, the Flash EEPROM array is located from addresses $8000 to $FFFF in single-chip mode.
In Expanded modes the Flash EEPROM array is located from address $0000 to $7FFF, however, it is
turned off. The Flash EEPROM can be mapped to an alternate address range. See
5 Operating Modes
and Resource Mapping
.
7.4 Flash EEPROM Registers
In normal modes the LOCK bit can only be written once after reset.
LOCK — Lock Register Bit
0 = Enable write to FEEMCR register
1 = Disable write to FEEMCR register
FEELCK
—
Flash EEPROM Lock Control Register
$00F4
Bit 7
6
5
4
3
2
1
Bit 0
0
0
0
0
0
0
0
LOCK
RESET:
0
0
0
0
0
0
0
0
相關PDF資料 |
PDF描述 |
|---|---|
| MC68B912B32FU8 | 16-Bit Microcontroller |
| MC68C912B32CFU8 | 16-Bit Microcontroller |
| MC68CK338 | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC68CK16Z1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CAG16 | 功能描述:16位微控制器 - MCU 16BIT 1KRAM 32KHZ CRYSTAL RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
| MC68CK16Z1CAG16 | 制造商:Freescale Semiconductor 功能描述:Microcontroller |
| MC68CK16Z1CFC16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CPV16 | 功能描述:16位微控制器 - MCU 16 Bit 16MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
發布緊急采購，3分鐘左右您將得到回復。