ST7263 STMICROELECTRONICS [STMicroelectronics], ST7263 Datasheet - Page 19

• Manufacturer Part Number: ST7263
• Description: LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to 512 BYTES RAM, 8-BIT ADC, WDG, TIMER, SCI & I2C
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 11. Low Voltage Detector functional Diagram
Figure 13. Temporization timing diagram after an internal Reset
Figure 14. Reset Timing Diagram
Note: Refer to Electrical Characteristics for values of t
V
DD
V
OSCIN
f
CPU
DD
RESET
PC
WATCHDOG RESET
LOW VOLTAGE
WATCHDOG
DETECTOR
RESET
FROM
V
Addresses
DD
t
DDR
t
OXOV
V
IT+
temporization (4096 CPU clock cycles)
INTERNAL
RESET
RESET
$FFFE
DDR
Figure 12. Low Voltage Reset Signal Output
Note: Hysteresis (V
V
RESET
DD
4096 CPU
CYCLES
, t
CLOCK
DELAY
OXOV
V
FFFE
, V
IT+
IT+
, V
IT-
IT+
FFFF
and V
-V
IT-
) = V
hys
hys
ST7263
V
IT-
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