ST72T774J9B1 STMicroelectronics, ST72T774J9B1 Datasheet - Page 10

• 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

ST72774/ST727754/ST72734
1.3 MEMORY MAP
Figure 3. Memory Map
10/144
(*) this block only contains addresses of interrupts and reset routines, no opcode is run from this block
any opcode fetch in those areas is considered as illegal and generates a reset
FFDFh
FFE0h
FFFFh
0FFFh
4000h
1000h
03FFh
8000h
005Fh
0060h
0000h
0400h
Interrupt & Reset Vectors *
32 Kbytes
48 Kbytes
60 Kbytes
(see
(see
1 Kbyte RAM
HW Registers
Reserved
Table
Table
512 Bytes RAM
ROM/EPROM
3)
2)
01FFh
01FFh
03FFh
0060h
0100h
0060h
0100h
0200h
16-bit Addressing RAM
16-bit Addressing RAM
RAM (zero page)
Short Addressing
RAM (zero page)
Short Addressing
16-bit Addressing
256 Bytes Stack/
256 Bytes Stack/
512 Bytes
RAM