Z8F082ASH020SC Datasheet, PDF (213/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

Z8 Encore! XP^® F08xA Series
Product Specification
195
On-Chip Peripheral AC and DC Electrical Characteristics
Table 121. Power-On Reset and Voltage Brown-Out Electrical Characteristics and Timing
Symbol Parameter
T_A = -40°C to +105°C
Minimum Typical¹ Maximum
Units Conditions
V_POR Power-On Reset Voltage 2.20
2.45
2.70
Threshold
V V_DD = V_POR (default VBO
trim)
V_VBO Voltage Brown-Out
2.15
2.40
2.65
Reset Voltage Threshold
V V_DD = V_VBO (default VBO
trim)
V_POR to V_VBO hysteresis
50
75
mV
Starting V_DD voltage to
–
V_SS
–
V
ensure valid Power-On
Reset.
T_ANA Power-On Reset Analog
–
50
Delay
T_POR Power-On Reset Digital TBD
16
Delay
–
TBD
µs V_DD > V_POR; T_POR Digital
Reset delay follows T_ANA
µs 66 Internal Precision
Oscillator cycles
T_POR Power-On Reset Digital TBD
1
Delay
TBD
ms 5000 Internal Precision
Oscillator cycles
T_SMR STOP Mode Recovery
TBD
16
with crystal oscillator
disabled
TBD
µs 66 Internal Precision
Oscillator cycles
T_SMR STOP Mode Recovery
TBD
1
with crystal oscillator
enabled
TBD
ms 5000 Internal Precision
Oscillator cycles
T_VBO Voltage Brown-Out
–
10
Pulse Rejection Period
–
µs ^V_DD ^{< V}_VBO ^{to generate a}
Reset.
T_RAMP Time for V_DD to transition 0.10
–
from V_SS to V_POR to
ensure valid Reset
100
ms
1 Data in the typical column is from characterization at 3.3V and 0°C. These values are provided for
design guidance only and are not tested in production.
PS024705-0405
PRELIMINARY
Electrical Characteristics