z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 236

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

On-Chip Peripheral AC and DC Electrical Characteristics
Table 107. Power-On Reset and Voltage Brownout Electrical Characteristics and Timing
PS019921-0308
Symbol Parameter
V
V
T
T
T
T
1
only and are not tested in production.
Data in the typical column is from characterization at 3.3 V and 0 °C. These values are provided for design guidance
ANA
POR
VBO
RAMP
POR
VBO
Power-On Reset
Voltage Threshold
Voltage Brownout Reset
Voltage Threshold
V
hysteresis
Starting V
ensure valid Power-On
Reset.
Power-On Reset Analog
Delay
Power-On Reset Digital
Delay
Voltage Brownout Pulse
Rejection Period
Time for VDD to
transition from V
V
Reset
POR
POR
to V
to ensure valid
DD
VBO
voltage to
SS
to
T
Minimum Typical
A
2.40
2.30
0.10
= –40 °C to 125 °C
50
–
–
–
–
2.70
2.60
V
100
6.6
50
10
–
SS
1
Maximum
2.90
2.85
100
–
–
–
–
–
Units
mV
ms
ms
µs
µs
Z8 Encore! XP
V
V
V
Conditions
V
V
V
Reset delay follows T
66 WDT Oscillator cycles
(10 kHz) + 16 System Clock
cycles (20 MHz)
V
Reset.
DD
DD
DD
DD
Product Specification
= V
= V
> V
< V
Electrical Characteristics
POR
VBO
POR
VBO
®
; T
to generate a
F64XX Series
POR
Digital
ANA
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