SST89E554RC-40-C-TQJ Microchip Technology, SST89E554RC-40-C-TQJ Datasheet - Page 63
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SST89E554RC-40-C-TQJ
Manufacturer Part Number
SST89E554RC-40-C-TQJ
Description
8-bit Microcontrollers - MCU 32KB+8KB 40ns
Manufacturer
Microchip Technology
Datasheet
1.SST89E564RD-40-I-NJE.pdf
(90 pages)
Specifications of SST89E554RC-40-C-TQJ
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
40 MHz
Program Memory Size
32 KB
Data Ram Size
1 KB
On-chip Adc
No
Operating Supply Voltage
4.5 V to 5.5 V
Package / Case
TQFP-44
Mounting Style
SMD/SMT
Data Rom Size
128 B
Interface Type
SPI, UART
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Number Of Programmable I/os
32
Number Of Timers
16 bit
On-chip Dac
No
Processor Series
FlashFlex
Program Memory Type
Flash
Supply Voltage - Max
5.5 V
Supply Voltage - Min
4.5 V
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FlashFlex MCU
SST89E564RD / SST89V564RD
SST89E554RC / SST89V554RC
10.4 Interrupt Priority and Polling Sequence
The device supports eight interrupt sources under a four level priority scheme. Table 10-1 summarizes the polling
sequence of the supported interrupts. Note that the SPI serial interface and the UART share the same interrupt
vector. (See Figure 10-2)
TABLE 10-1: I
©2007 Silicon Storage Technology, Inc.
Description
Ext. Int0
Brown-out
T0
Ext. Int1
T1
PCA
UART/SPI
T2
NTERRUPT
Interrupt Flag
TF2, EXF2
TI/RI/SPIF
CF/CCFn
TF0
TF1
IE0
IE1
-
P
OLLING
S
Address
Vector
004BH
000BH
001BH
002BH
EQUENCE
0003H
0013H
0033H
0023H
Interrupt
Enable
EBO
EX0
ET0
EX1
ET1
ET2
EC
ES
63
Interrupt
Priority
PBO/H
PX0/H
PX1/H
PT0/H
PT1/H
PPCH
PT2/H
PS/H
1(highest)
Service
Priority
2
6
7
8
3
4
5
S71207-08-EOL
EOL Data Sheet
Power-down
Wake-Up
yes
yes
no
no
no
no
no
no
T10-1.2 1207
1/07
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