国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數資料
型號: W921E880
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-Bit Microcontroller(4位的微控制器)
中文描述: 4-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 48/62頁
文件大小: 511K
代理商: W921E880
W921E880
- 48 -
Erase Waveforms
D0 to D3
READ
Chip Erase
Erase Verify
T
EPW
T
RDS
T
DV
T
DF
T
DH
T
DS
D
OUT
PROG
High
PROGD / ERASE
Vpp (OSCI)
5V
14V
T
VPS
(for external mode)
T
VPH
9.3 Internal ROM -- EEPROM (Super EPROM) Program Method
The internal ROM of the W921E880 is programmed on a page basis. Every page contains 128
×
10-
bits of data. A programming operation is the only way to change data from "1" to "0." To program the
ROM, addresses A0 to A12 must be latched and when V
PP
= 12V, V
CC
= 5V,
READ
= V
IH
, and
PROG
= V
IL
. Under these conditions, pulsing
PROGD
low starts the programming operation.
Address A0 to A12 must be latched in the latch circuit for program verify operations to be performed
correctly. Program verify mode is entered when, V
CC
= 5V,
PROGD
= V
IH,
PROGD
= V
IH,
and
READ
= V
IL
. The programming waveforms are shown below.
Programming Waveforms
A10 to A12
A0/D0 to A9/D9
LATCH
PROGD /
READ
Program Verify
Program
PROG
Max. 128 addresses x 10-bit
Address Stable
Address Stable
Address Stable
Address Stable
T
AS
T
LPW
T
AH
T
DS
T
DH
T
PUMP
T
PPW
T
DV
D
IN
D
IN
D
OUT
//
//
//
//
//
//
T
DF
Vpp (OSCI)
(for external mode)
//
T
VPS
0V
12V
Address Stable
Address Stable
T
PD
T
VPH
Note: If the program range covers more than one ROM page, the PROG must return to high then go low again after another ROM
page address is latched.
相關PDF資料
PDF描述
W921F840 4-Bit Microcontroller(4位的微控制器)
W9310 Direct Sequence Spread Spectrum Transceiver(直接序列擴展頻譜收發器)
W9320 ADPCM Codec(ADPCM編解碼器)
W9321 ADPCM Codec(ADPCM編解碼器)
W9330F Code Division Spread Spectrum Cordless Telephone Controller(具有編碼分劃和擴展頻普技術的無繩電話控制器)
相關代理商/技術參數
參數描述
W921E880A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W925C240 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Controller
W925C625 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER
W925E240 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Controller
W925E240FG 功能描述:IC MCU 8-BIT W/CID 100-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:W925 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI,I²C,UART/USART 外圍設備:POR,PWM,WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC(J 形引線) 包裝:帶卷 (TR)