ST7263-EMU2 STMicroelectronics, ST7263-EMU2 Datasheet - Page 98

• Manufacturer Part Number: ST7263-EMU2
• Description: MCU, MPU & DSP Development Tools ST7 Emulator Board
• Manufacturer: STMicroelectronics

Specifications of ST7263-EMU2

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ST7263
7.6 LOW VOLTAGE DETECTOR (LVD) CHARACTERISTICS
7.7 CONTROL TIMING CHARACTERISTICS
(Operating conditions T
Note 1: The minimum period t
C
98/109
LOW VOLTAGE RESET Electrical Specifications
CONTROL TIMINGS
Symbol
Symbol
T
t
t
OXOV
f
t
t
f
V
V
PORL
V
DOGL
DOG
OSC
CPU
t
DDR
RL
hys
IT+
IT-
interrupt service routine plus 21 cycles.
Oscillator Frequency
Operating Frequency
External RESET
Input pulse Width
Internal Power Reset Duration
Watchdog & Low Voltage Reset
Output Pulse Width
Watchdog Time-out
Crystal Oscillator
Start-up Time
Power up rise time
Low Voltage Reset Threshold
Low Voltage Reset Threshold
Hysteresis (V
Parameter
Parameter
V
V
A
DD
DD
= 0 to +70°C unless otherwise specified)
falling
rising
IT+
ILIL
- V
should not be less than the number of cycle times it takes to execute the
IT-
)
f
from V
cpu
= 8MHz
V
V
Conditions
DD
DD
DD
Conditions
Max. Variation
Max. Variation
= 0 to 4V
50mV/ s
50mV/ s
49152
4096
Min
200
1.5
6
Min
200
3.6
3.2
Value
Typ.
3.75
Typ
250
3.5
3145728
Max
384
100
24
50
8
Max
4.0
3.7
MHz
MHz
Unit
t
t
t
ms
ms
ms
CPU
CPU
CPU
Unit
ns
mV
V
V