参数资料
型号: SST89C58RC-40-I-TQJE
厂商: Microchip Technology
文件页数: 20/88页
文件大小: 0K
描述: IC MCU 8BIT FLASH 40TQFP
标准包装: 160
系列: FlashFlex®
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: EBI/EMI,I²C,SMBus,UART/USART
外围设备: 欠压检测/复位,POR,WDT
输入/输出数: 32
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: 1K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 托盘
2011 Silicon Storage Technology, Inc.
DS25100A
12/11
27
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Symbol
Function
PWRUP_SI1
Power-down Wakeup Flag - When the SUBus wakes up the MCU, the flag bit is set by
hardware. The bit is in ready-only mode. Only writing ‘0’ to this bit will clear the flag. If
SMBus interrupt enable bit is set, then the SMBus interrupt is generated when the flag
bit is ‘1’.
0: No wakeup flag
1: Wakeup flag occurs
PWRUP_EN1
Power-down Wakeup Enable
0: SMBus power-down wakeup function disabled
1: SMBus power-down wakeup function enabled
STADY_1
Start Condition Long Delay Enable
0: Start condition long delay disabled
1: Start condition long delay enabled
EXTHOLD_1
External Data Hold Time Setting
0: SDA hold time is 20 system clock periods
1: SDA hold time is 3 system clock periods
Symbol
Function
SM0STA
This is a read-only SFR. The five most significant bits contain the status code. The
three least significant bits are always ‘0’.
Symbol
Function
SM1STA
This is a read-only SFR. The five most significant bits contain the status code. The
three least significant bits are always ‘0’.
SMBus1 Control Register1 (SM1CON1)
Location
7
6
5
4
3210
Reset Value
D7H
1
11
1
PWRUP_SI1
PWRUP_EN1
STADY_1
EXTHOLD_1
F0H
SMBus0 Status Register (SM0STA)
Location
76543210
Reset Value
DAH
SM0STA[7:3]
0
F8H
SMBus1 Status Register (SM1STA)
Location
7
6
5
4
3
2
1
0
Reset Value
D2H
SM0STA[7:3]
0
F8H
SMBus0 Data Register (SM0DAT)
Location
7
6543210
Reset Value
DBH
SM0DAT[7:0]
00H
SMBus1 Data Register (SM1DAT)
Location
7
6
5
4
3
2
1
0
Reset Value
D3H
SM1DAT[7:0]
00H
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