參數(shù)資料
型號(hào): SST89E52RC-33-C-NJE
廠商: Microchip Technology
文件頁數(shù): 19/71頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 9KB FLASH 44PLCC
標(biāo)準(zhǔn)包裝: 26
系列: FlashFlex®
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,UART/USART
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 8KB(8K x 8)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 1K x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
2011 Silicon Storage Technology, Inc.
DS25088A
10/11
26
FlashFlex MCU
SST89E52RC / SST89E54RC
Data Sheet
A Microchip Technology Company
Flash Memory Programming
The device internal flash memory can be programmed or erased using In-Application Programming
(IAP).
Product Identification
The Read-ID command accesses the Signature Bytes that identify the device and the manufacturer as
SST. External programmers primarily use these Signature Bytes in the selection of programming algo-
rithms.
In-Application Programming
The device offers 17/9 KByte of in-application programmable flash memory. During In-Application Pro-
gramming (IAP), the CPU of the microcontroller enters STOP mode. Upon completion of IAP, the CPU
will be released to resume program execution. The mailbox registers (SFST, SFCM, SFAL, SFAH,
SFDT and SFCF) located in the special function register (SFR), control and monitor the device’s Erase
and Program processes.
Table 13 outlines the commands and their associated mailbox register settings.
IAP Mode Clock Source
During IAP mode, both the CPU core and the flash controller unit are driven off the external clock. However,
an internal oscillator will provide timing references for Program and Erase operations. The internal oscillator is
only turned on when required, and is turned off as soon as the flash operation is completed.
IAP Enable Bit
The IAP enable bit, SFCF[6], enables In-Application programming mode. Until this bit is set, all flash
programming IAP commands will be ignored.
Table 11:Product Identification
Address
Data
Manufacturer’s ID
30H
BFH
Device ID
31H
F7H
Device ID (extended)
SST89E54RC
32H
43H
SST89E52RC
32H
42H
T0-0.1 25008
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