ST72T774J9B1 STMicroelectronics, ST72T774J9B1 Datasheet - Page 32

• 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
I/O PORTS (Cont’d)
Figure 19. PB0 to PB3
Figure 20. PB4 to PB7
32/144
Alternate input
DR SEL
DDR SEL
DR SEL
DR SEL
latch
DDR
latch
DDR
latch
DR
latch
DDR SEL
DR
0
1
1
1
0
0
Alternate
output
CMOS Schmitt Trigger
Alternate enable
Alternate enable
1
0
Analog enable
(ADC)
CMOS Schmitt Trigger
Analog
switch
PULL-UP
V
SS
V
N-BUFFER
V
SS
DD
N-BUFFER
P-BUFFER
PAD
PAD