ST72T774J9B1 STMicroelectronics, ST72T774J9B1 Datasheet - Page 13

• Manufacturer Part Number: ST72T774J9B1
• Manufacturer: STMicroelectronics

Specifications of ST72T774J9B1

• Cpu Family: ST7
• Device Core Size: 8b
• Frequency (max): 24MHz
• Interface Type: I2C/USB
• Program Memory Type: EPROM
• Program Memory Size: 60KB
• Total Internal Ram Size: 1KB
• # I/os (max): 31
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4V
• On-chip Adc: 1-chx8-bit
• On-chip Dac: 1-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 42
• Package Type: SPDIP
• Lead Free Status / Rohs Status: Specific Sites Compliant

Table 3. Interrupt Vector Map
Address
0050h
0051h
0052h
0053h
0054h
0055h
0056h
0057h
0058h
0059h
005Ah
005Bh
005Ch
005Dh
005Eh
005Fh
Vector Address
FFEC-FFEDh
FFEA-FFEBh
FFEE-FFEFh
FFFC-FFFDh
FFFA-FFFBh
FFFE-FFFFh
FFE0-FFE1h
FFE2-FFE3h
FFE4-FFE5h
FFE6-FFE7h
FFE8-FFE9h
FFF0-FFF1h
FFF2-FFF3h
FFF4-FFF5h
FFF6-FFF7h
FFF8-FFF9h
DDC/CI
I2C
Block
Register Label
DDCCR
DDCSR1
DDCSR2
DDCOAR
DDCDR
I2CDR
I2CCCR
I2CSR2
I2CSR1
I2CCR
Timer Output Compare interrupt vector
Timer Input Capture interrupt vector
USB End Suspend interrupt vector
TRAP (software) interrupt vector
ITA falling edge interrupt vector
ITB falling edge interrupt vector
Timer Overflow interrupt vector
DDC1/2B interrupt vector
DDC/CI interrupt vector
USB interrupt vector
I2C interrupt vector
DDC/CI Control Register
DDC/CI Status Register 1
DDC/CI Status Register 2
Reserved
DDC/CI (7 Bits) Slave address Register
Reserved
DDC/CI Data Register
I2C Data Register
Reserved
Reserved
I
I
I
I
2
2
2
2
C Clock Control Register
C Status Register 2
C Status Register 1
C Control Register
RESET vector
Description
Not used
Not used
Not used
Not used
Reserved Area (2 bytes)
Register Name
ST72774/ST727754/ST72734
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
External Interrupts
Internal Interrupts
Status
Reset
Internal Interrupt
CPU Interrupt
Remarks
R/W
Read only
Read only
R/W
R/W
R/W
R/W
Read only
Read only
R/W
Remarks
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