Z8F6421PM020SC Datasheet, PDF (239/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
219
On-Chip Peripheral AC and DC Electrical Characteristics
Table 106. Power-On Reset and Voltage Brown-Out Electrical Characteristics and Timing
Symbol Parameter
T_A = –40⁰C to 125⁰C
Minimum Typical¹ Maximum Units Conditions
V_POR Power-On Reset Voltage
2.40
2.70
2.90
V V_DD = V_POR
Threshold
V_VBO Voltage Brown-Out Reset
2.30
2.60
2.85
V V_DD = V_VBO
Voltage Threshold
V_POR to V_VBO hysteresis
50
100
Starting V_DD voltage to
ensure valid Power-On
Reset.
–
V_SS
–
mV
–
V
T_ANA Power-On Reset Analog
–
50
–
μs V_DD > V_POR; T_POR Digital
Delay
Reset delay follows T_ANA
T_POR Power-On Reset Digital
–
6.6
–
ms 66 WDT Oscillator cycles
Delay
(10KHz) + 16 System Clock
cycles (20MHz)
T_VBO Voltage Brown-Out Pulse
–
10
–
μs V_DD < V_VBO to generate a
Rejection Period
Reset.
T_RAMP Time for VDD 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 0⁰C. These values are provided for design guidance
only and are not tested in production.
PS019915-1005
Electrical Characteristics