参数资料
型号: T89C51AC2-SLSIM
厂商: Atmel
文件页数: 36/121页
文件大小: 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
标准包装: 27
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 34
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 1.25K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
21
A/T89C51AC2
4127H–8051–02/08
Figure 9. Power-down Exit Waveform Using INT1:0#
2.
Generate a reset.
A logic high on the RST pin clears PD bit in PCON register directly and
asynchronously. This starts the oscillator and restores the clock to the CPU
and peripherals. Program execution momentarily resumes with the
instruction immediately following the instruction that activated Power-down
mode and may continue for a number of clock cycles before the internal
reset algorithm takes control. Reset initializes the T89C51CC02 and vectors
the CPU to address 0000h.
Notes:
1. During the time that execution resumes, the internal RAM cannot be accessed; how-
ever, it is possible for the Port pins to be accessed. To avoid unexpected outputs at
the Port pins, the instruction immediately following the instruction that activated the
Power-down mode should not write to a Port pin or to the external RAM.
2. Exit from power-down by reset redefines all the SFRs, but does not affect the internal
RAM content.
Table 14. Pin Conditions in Special Operating Modes
INT1:0#
OSC
Power-down phase
Oscillator restart phase
Active phase
Mode
Port 0
Port 1
Port 2
Port 3
Port 4
ALE
PSEN#
Reset
Floating
High
Idle
(internal
code)
Data
High
Idle
(external
code)
Floating
Data
High
Power-
Down(inter
nal code)
Data
Low
Power-
Down
(external
code)
Floating
Data
Low
相关PDF资料
PDF描述
T89C51CC01UA-7CTIM IC 8051 MCU FLASH 32K 64BGA
T89C51CC02UA-TDSIM IC 8051 MCU FLASH 16K 24-SOIC
TC520ACOE713 IC SERIAL INTERFACE ADT 16SOIC
TC530COI713 IC DATA ACQ SUBSYSTEM 28SOIC
TDA3653B/N2,112 IC VERT DEFLECT 9-SIL
相关代理商/技术参数
参数描述
T89C51AC2-SLSI-M 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM
T89C51AC2-SLTC-M 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM
T89C51AC2-SLTE-M 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM
T89C51AC2-SLTI-M 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM
T89C51CC01 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with CAN Controller and Flash Memory