參數(shù)資料
型號: SST89C58RC-40-C-QIF
廠商: Microchip Technology
文件頁數(shù): 19/88頁
文件大?。?/td> 0K
描述: IC MCU 8BIT FLASH 40WQFN
標準包裝: 81
系列: FlashFlex®
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: EBI/EMI,I²C,SMBus,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 40-WFQFN 裸露焊盤
包裝: 管件
2011 Silicon Storage Technology, Inc.
DS25100A
12/11
26
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Symbol
Function
PWRUP_SI0
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_EN0
Power-down Wakeup Enable
0: SMBus power-down wakeup function disabled
1: SMBus power-down wakeup function enabled
STADY_0
Start Condition Long Delay Enable
0: Start condition long delay disabled
1: Start condition long delay enabled
EXTHOLD_0
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
SMBEN_1
SMBus Enable
0: Disable SMBus
1: Enable SMBus
STA_1
Start Flag
0: No START condition or repeated START condition will be generated
1: START or repeated START condition will be generated
SI_1
Serial Interrupt Flag
0: No serial interrupt is requested, no stretching on the SCL
1: A serial interrupt is requested, the SCL line is stretched (if EA and ES1 are both set)
AA_1
Assert Acknowledge Flag -This bit defines the type of acknowledge returned during
the acknowledge cycle on the SCL line.
0: A “not acknowledge” (high level on SDA) is returned during the acknowledge cycle
1: An “acknowledge” (low level on SDA) is returned during the acknowledge cycle
FTE_1
Bus Free (SCL High) Timeout Enable
0: Bus Free timeout disabled
1: Bus Free timeout enabled
TOE_1
SCL Low Timeout Enable
0: SCL Low timeout disabled
1: SCL Low timeout enabled
CRSEL_1
SCL Clock Source Selection
0: SMBus internal baud generator generates the SCL
1: TIMER1 overflow generates the SCL
SMBus0 Control Register1 (SM0CON1)
Location
7
6
5
4
3
2
1
0
Reset Value
DFH
1
11
1
PWRUP_SI0
PWRUP_EN0
STADY_0
EXTHOLD_0
F0H
SMBus1 Control Register0 (SM1CON0)
Location
76543210
Reset Value
D1H
SMBEN_1
STA_1
STO_1
SI_1
AA_1
FTE_1
TOE_1
CRSEL_1
00H
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