ST72T774J9B1 STMicroelectronics, ST72T774J9B1 Datasheet - Page 29

• 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

Figure 16. Input Structure for SYNC signals
4.1.3 Port A
PA7 and PA[2:0] can be defined as Input lines
(with pull-up) or as Push-pull Outputs.
Table 8. Port A Description
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
*Reset State
(no pull-up)
Pin
Pin
PORT A
pull-up
V
DD
With pull-up
With pull-up
With pull-up
Without pull-up
Without pull-up
Without pull-up
Without pull-up
With pull-up
TTL trigger
TTL trigger
Input*
I/O logic (if existing)
I/O logic (if existing)
HSYNCI Input
VSYNCI Input
CSYNCI Input
HFBACK Input
VFBACK Input
I / O
push-pull
push-pull
push-pull
open-drain
open-drain
open-drain
open-drain
push-pull
Output
PA [6:3] can be defined as Input lines (without pull-
up) or as Output Open drain lines.
PA7 and PA[2:0] can be defined as Input lines
(with pull-up) or as Push-pull Outputs.
PA [6:3] can be defined as Input lines (without pull-
up) or as Output Open drain lines.
OCMP1
-
VSYNCI2
-
-
-
-
BLANKOUT
ST72774/ST727754/ST72734
Signal
Alternate Function
OC1E =1
(CR2[TIMER])
-
VSYNCSEL=1
(MISCR)
-
-
-
-
BLKEN = 1
(ENR[SYNC])
Condition
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