JN5148 NXP Semiconductors, JN5148 Datasheet - Page 67

• Manufacturer Part Number: JN5148
• Description: The JN5148 is an ultra low power, high performance MCU combined with an IEEE802
• Manufacturer: NXP Semiconductors

VDD = 2.0 to 3.6V, -40 to +85º C
1
© NXP Laboratories UK 2011
Time from release of reset to start of executing ROM code. Loading program from Flash occurs in addition to this.
Parameter
External Reset pulse width
to initiate reset sequence
(t
External Reset threshold
voltage (V
Internal Power-on Reset
threshold voltage (V
Reset stabilisation time
(t
Brown-out Threshold
Voltage (V
Brown-out Hysteresis
(V
V
RST
STAB
TH
HYS
)
+ V
)
)
V
V
HYS
POT
TH
RST
TH
)
)
Internal BOReset
Internal POR
POT
)
Internal RESET
Figure 47: Power on Reset followed by Brown-out Detect
RESETN
VDD2 x 0.7
1.87
2.16
2.54
2.83
Min
1
Figure 46: Externally Applied Reset
JN-DS-JN5148-001 1v7
1.47
1.42
0.84
1.95
2.25
2.65
2.95
Typ
100
45
60
85
t
RST
DVDD
Max
2.01
2.32
2.73
3.04
V
RST
t
STAB
Unit
mV
ms
µs
V
V
V
Assumes internal pullup
resistor value of 100K
worst case and ~5pF
external capacitance
Minimum voltage to
avoid being reset
Rising
Falling
Note 1
Configurable threshold
with 4 levels
Corresponding to the 4
threshold levels
Notes
67