FlashFlex MCU
SST89E564RD / SST89V564RD
SST89E554RC / SST89V554RC
EOL Data Sheet
1.0 FUNCTIONAL BLOCKS
FUNCTIONAL BLOCK DIAGRAM
8051
CPU Core
ALU,
ACC,
B-Register,
Instruction Register,
Program Counter,
Timing and Control
Interrupt
Control
Oscillator
8 Interrupts
Flash Control Unit
Watchdog Timer
SuperFlash
EEPROM
Primary
RAM
1K x8
Block
32K/64K x81
8
8
8
I/O
I/O
I/O
I/O
I/O Port 0
Secondary
Block
8K x8
Security
Lock
I/O Port 1
I/O Port 2
I/O Port 3
SPI
8
Timer 0 (16-bit)
Timer 1 (16-bit)
Timer 2 (16-bit)
PCA
8-bit
Enhanced
UART
1207 B1.3
1. 64K x8 for SST89E564RD and SST89V564RD
32K x8 for SST89E554RC and SST89V554RC
©2007 Silicon Storage Technology, Inc.
S71207-08-EOL
1/07
7
SST [ SILICON STORAGE TECHNOLOGY, INC ]
