参数资料
型号: PIC16F872-E/SO
厂商: Microchip Technology
文件页数: 62/167页
文件大小: 0K
描述: IC MCU CMOS 20MHZ 2K FLSH 28SOIC
产品培训模块: Asynchronous Stimulus
标准包装: 27
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,SPI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 22
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
数据转换器: A/D 5x10b
振荡器型: 外部
工作温度: -40°C ~ 125°C
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
包装: 管件
155
8048C–AVR–02/12
ATtiny43U
loading the Write EEPROM Memory Page Instruction with the 4 MSB of the address.
When using EEPROM page access only byte locations loaded with the Load EEPROM
Memory Page instruction is altered. The remaining locations remain unchanged. If poll-
ing (RDY/BSY) is not used, the used must wait at least t
WD_EEPROM before issuing the
next page (See Table 19-15 on page 155). In a chip erased device, no 0xFF in the data
file(s) need to be programmed.
6.
Any memory location can be verified by using the Read instruction which returns the
content at the selected address at serial output MISO.
7.
At the end of the programming session, RESET can be set high to commence normal
operation.
8.
Power-off sequence (if needed):
Set RESET to “1”.
Turn V
CC power off.
19.7.2
Serial Programming Instruction set
Table 19-16 and Figure 19-8 on page 157 describes the Instruction set.
Table 19-15. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Symbol
Minimum Wait Delay
tWD_FLASH
4.5 ms
tWD_EEPROM
4.0 ms
t
WD_ERASE
9.0 ms
tWD_FUSE
4.5 ms
Table 19-16. Serial Programming Instruction Set
Instruction/Operation(1)
Instruction Format
Byte 1
Byte 2
Byte 3
Byte4
Programming Enable
$AC
$53
$00
Chip Erase (Program Memory/EEPROM)
$AC
$80
$00
Poll RDY/BSY
$F0
$00
data byte out
Load Instructions
Load Extended Address byte
$4D
$00
Extended adr
$00
Load Program Memory Page, High byte
$48
adr MSB
adr LSB
high data byte in
Load Program Memory Page, Low byte
$40
adr MSB
adr LSB
low data byte in
Load EEPROM Memory Page (page access)
$C1
$00
adr LSB
data byte in
Read Instructions
Read Program Memory, High byte
$28
adr MSB
adr LSB
high data byte out
Read Program Memory, Low byte
$20
adr MSB
adr LSB
low data byte out
Read EEPROM Memory
$A0
$00
adr LSB
data byte out
Read Lock bits
$58
$00
data byte out
Read Signature Byte
$30
$00
adr LSB
data byte out
Read Fuse bits
$50
$00
data byte out
Read Fuse High bits
$58
$08
$00
data byte out
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