Datasheet > IAP15F206A

IAP15F206A

更新时间： 2024-03-03 10:06:55

品牌	Logo	应用领域
宏晶 - STC		/
页数	文件大小	规格书
252页	721K
描述
SKDIP/SOP

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中文翻译

获取价格

数据手册

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IAP15F206A 数据手册

STC89 series WDT_CONTR ( E1H )

Reset Value

xx00,0000

Mnemonic Add

WDT_CONTR E1h

Name

Bit7 Bit6 Bit5

Bit4

Bir3 Bit2 Bit1 Bit0

Wact-Dog-Timer Control register

EN_WDT CLR_WDT IDL_WDT

PS2 PS1 PS0

STC15F204EA series MCU auto enable watch dog timer after ISP upgrade, but not in STC89 series, so

STC15F204EA series’s watch dog is more reliable.

EEPROM

SFR associated with EEPROM

STC15Fxx

Address

STC89xx

Mnemonic

Description

ISP/IAP Flash data register

IAP_DATA

IAP_ADDRH

IAP_ADDRL

IAP_CMD

C2H

C3H

C4H

C5H

C6H

C7H

E2H

E3G

E4H

E5H

E6H

E7H

ISP/IAP Flash HIGH address register

ISP/IAP Flash LOW address register

ISP/IAP Flash command register

ISP/IAP command trigger register

ISP/IAP control register

IAP_TRIG

IAP_CONTR

STC15F204EA series write 5AH and A5H sequential to trigger EEPROM flash command, and STC89 series

write 46H and B9H sequential to trigger EEPROM flash command.

STC15F204EA series EEPROM start address all location at 0000H, but STC89 series is not.

Power consumption

Power consumption consists of two parts: crystal oscillator amplifier circuits and digital circuits.

STC15F204EA series have no crystal oscillator amplifier circuits, so its consumption is lower than STC89

series. For digital circuits, the higher clock frequency, the greater the power consumption. STC15F204EA

series MCU instruction execution speed is faster than the STC89 series MCU 3~24 times in the same

working environment, so if you need to achieve the same efficiency, STC15F204EA series required

frequency is lower than STC89 series MCU.

PowerDown Wakeup

STC15F204EA series MCU wake-up support for rising edge or falling edge depend on the external interrupt

mode, but STC89 series only support for low level.

About reset circuit

For STC89 series, if the system frequency is below 12MHz, the external reset circuit is not required. Reset

pin can be connected to ground through the 1K resistor or can be connected directly to ground. The proposal

to create PCB to retain RC reset circuit.

While STC15F204EA series has an internal high-reliability reset circuit and does not need external reset

circuit.

About Clock oscillator

For STC89 series, if you need to use internal RC oscillator, XTAL1 pin and XTAL2 pin must be floating. If

you use a external active crystal oscillator, clock signal input from XTAL1 pin and XTAL2 pin floating.

While STC15F204EA series only has an high-precision RC oscillator with temperature dirfting ±1% and has

removed expensive external crystal oscillator.

About power

Power at both ends need to add a 47uF electrolytic capacitor and a 0.1uF capacitor, to remove the coupling

and filtering

251

1...248 249 250251252

中文翻译

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