参数资料
型号: SST89E554A-40-C-NJ
厂商: SILICON STORAGE TECHNOLOGY INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, MS-018AC, LCC-44
文件页数: 81/87页
文件大小: 996K
代理商: SST89E554A-40-C-NJ
82
Preliminary Specifications
FlashFlex51 MCU
SST89E554A / SST89V554A
2003 Silicon Storage Technology, Inc.
S71228-00-000
6/03
FIGURE 14-18: BYTE-PROGRAM
Programs the addressed code byte if the byte location has been successfully erased and not yet programmed.
Byte-Program operation is only allowed when the security lock is not activated on that flash memory block.
FIGURE 14-19: PROG-SB1 / PROG-SB2 / PROG-SB3
Programs the Security bits SB1, SB2 and SB3 respectively. Only a Chip-Erase will erase a programmed security bit.
RST
PSEN#
ALE/PROG#
EA#
P3[3]
P3[5:4], P2[5:0]
P1
AH
AL
TPB
TPROG
TADS
1228 F49.0
P0
P3[7:6], P2[7:6]
DI
1110b
TDH
TSU
TES
RST
PSEN#
ALE/PROG#
EA#
P3[3]
TPS
TPROG
TADS
1228 F50.0
P3[7:6], P2[7:6]
1111b / 0011b / 0101b
TDH
TSU
TES
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