ST72T774J9B1 STMicroelectronics, ST72T774J9B1 Datasheet - Page 21

• 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

RESET (Cont’d)
Figure 10. Low Voltage Detector Functional Diagram Figure 11. LVD Reset Signal Output
Figure 12. Reset Timing Diagram
Note: Refer to Electrical Characteristics for values of t
V
DD
V
OSCIN
f
CPU
DD
RESET
PC
WATCHDOG RESET
WATCHDOG
RESET
LVD
t
DDR
RESET
t
FROM
OXOV
RESPOF
INTERNAL
RESET
t
RL
DDR
Note: See electrical characteristics section for
values of V
RESET
V
4096 CPU
DD
CYCLES
, t
CLOCK
DELAY
V
OXOV and
TRM
V
TRH
FFFE
TRH,
t
RL
V
ST72774/ST727754/ST72734
TRL
FFFF
and V
TRM
V
TRL
V
TRM
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