参数资料
型号: SST89V54RD-33-C-PIE
厂商: Microchip Technology
文件页数: 14/92页
文件大小: 0K
描述: IC MCU 8BIT 24KB FLASH 40PDIP
标准包装: 9
系列: FlashFlex®
核心处理器: 8051
芯体尺寸: 8-位
速度: 33MHz
连通性: EBI/EMI,SPI,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: 16KB(16K x 8)
程序存储器类型: 闪存
EEPROM 大小: 8K x 8
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 40-DIP(0.600",15.24mm)
包装: 管件
2011 Silicon Storage Technology, Inc.
DS25087A
10/11
21
FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
Not Recommended for New Designs
A Microchip Technology Company
Symbol
Function
SFAH
Mailbox register for interfacing with flash memory block. (High order address register).
Symbol
Function
SFDT
Mailbox register for interfacing with flash memory block. (Data register).
Symbol
Function
SB1_i
Security Bit 1 status (inverse of SB1 bit)
SB2_i
Security Bit 2 status (inverse of SB2 bit)
SB3_i
Security Bit 3 status (inverse of SB3 bit)
Please refer to Table 24 for security lock options.
EDC_i
Double Clock Status
0: 12 clocks per machine cycle
1: 6 clocks per machine cycle
FLASH_BUSY Flash operation completion polling bit.
0: Device has fully completed the last IAP command.
1: Device is busy with flash operation.
SuperFlash Address Registers (SFAH)
Location
7654
3210
Reset
Value
B4H
SuperFlash High Order Byte Address Register
00H
SuperFlash Data Register (SFDT)
Location
76543210
Reset
Value
B5H
SuperFlash Data Register
00H
SuperFlash Status Register (SFST) (Read Only Register)
Location
7
65
43
2
10
Reset
Value
B6H
SB1_i
SB2_i
SB3_i
-
EDC_i
FLASH_BU
SY
-
xxxxx0xxb
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