参数资料
型号: SST89C58RC-40-C-QIF-T
厂商: Microchip Technology
文件页数: 15/88页
文件大小: 0K
描述: IC MCU 8BIT FLASH 40WQFN
标准包装: 3,000
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: 0°C ~ 70°C
封装/外壳: 40-WFQFN 裸露焊盘
包装: 带卷 (TR)
2011 Silicon Storage Technology, Inc.
DS25100A
12/11
22
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Symbol
Function
EXTRAM
Internal/External RAM access
0: Internal Expanded RAM access within range of 00H to FFH using MOVX @Ri /
@DPTR. Beyond 100H, the MCU always accesses external data memory
For details, refer to Section , “Expanded Data RAM Addressing”
1: External data memory access
AO
Disable/Enable ALE
0: ALE is emitted at a constant rate of 1/3 the oscillator frequency in 6 clock mode, 1/6
fOSC in 12 clock mode
1: ALE is active only during a MOVX or MOVC instruction
Symbol
Function
ENBOOT
Enable Partition 1
GF2
General purpose user-defined flag
DPS
DPTR registers select bit
0: DPTR0 is selected
1: DPTR1 is selected
Symbol
Function
SFIS0
Register used with SFIS1 to provide a feed sequence to validate writing to WDTC and
SFCM. Without a proper feed sequence, writing to SFCM will be ignored and writing to
WDTC in Watchdog mode will cause an immediate Watchdog reset.
Symbol
Function
SFIS1
Register used with SFIS0 to provide a feed sequence to validate writing to WDTC and
SFCM.
Auxiliary Register (AUXR)
Location
76543210
Reset Value
8EH
-
EXTRAM
AO
xxxxxx10b
Auxiliary Register 1 (AUXR1)
Location
7
6
5
4
3
2
1
0
Reset Value
A2H
-
ENBOOT
-
GF2
0
-
DPS
xx1x00x0b
Sequence Register 0 (SFIS0)
Location
7
6543210
Reset Value
97H
(Write Only)
N/A
Sequence Register 1 (SFIS1)
Location
7
6543210
Reset Value
C4H
(Write Only)
N/A
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