SST89E554RC-40-I-PI Microchip Technology, SST89E554RC-40-I-PI Datasheet - Page 83

• Manufacturer Part Number: SST89E554RC-40-I-PI
• Description: 8-bit Microcontrollers - MCU 32KB+8KB 40ns
• Manufacturer: Microchip Technology

Specifications of SST89E554RC-40-I-PI

• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 1 KB
• Operating Supply Voltage: 4.5 V to 5.5 V
• Package / Case: PDIP-40
• Mounting Style: Through Hole
• Data Rom Size: 128 B
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: FlashFlex
• Program Memory Type: Flash
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 4.5 V

FlashFlex MCU
SST89E564RD / SST89V564RD
SST89E554RC / SST89V554RC
©2007 Silicon Storage Technology, Inc.
P3[7:6], P2[7:6]
P3[5:4], P2[5:0]
FIGURE 13-20: B
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 13-21: P
Programs the Security bits SB1, SB2 and SB3 respectively. Only a Chip-Erase will erase a programmed security bit.
P3[7:6], P2[7:6]
ALE/PROG#
ALE/PROG#
PSEN#
RST
P3[3]
PSEN#
EA#
RST
P3[3]
EA#
P1
P0
YTE
ROG
-P
-SB1 / P
ROGRAM
T SU
T SU
ROG
-SB2 / P
ROG
-SB3
T ADS
T ES
83
T ADS
T ES
T PROG
T PROG
1111b / 0011b / 0101b
1110b
AH
AL
DI
T DH
T PS
T DH
T PB
S71207-08-EOL
EOL Data Sheet
1207 F12.2
1207 F11.2
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