Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!®
173
On-Chip Peripheral AC and DC Electrical Characteristics
Table 103. Power-On Reset and Voltage Brown-Out Electrical Characteristics and Timing
TA = -400C to 1050C
Symbol Parameter
Minimum Typical1 Maximum Units Conditions
VPOR Power-On Reset Voltage
Threshold
2.40
2.70
2.90
V
VDD = VPOR
VVBO Voltage Brown-Out Reset
Voltage Threshold
2.30
2.60
2.85
V
VDD = VVBO
VPOR to VVBO hysteresis
50
100
VSS
–
–
mV
V
Starting VDD voltage to
ensure valid Power-On
Reset.
–
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.
TANA Power-On Reset Analog
Delay
–
50
–
µs
VDD > VPOR; TPOR Digital
Reset delay follows TANA
TPOR
Power-On Reset Digital
Delay
–
10.2
–
ms
512 WDT Oscillator cycles
(50KHz) + 70 System Clock
cycles (20MHz)
TVBO Voltage Brown-Out Pulse
Rejection Period
–
10
–
ns
VDD < VVBO to generate a Reset.
TRAMP Time for VDD to transition
from VSS to VPOR to ensure
valid Reset
0.10
–
100
ms
Table 104. Flash Memory Electrical Characteristics and Timing
VDD = 3.0 - 3.6V
TA = -400C to 1050C
Parameter
Minimum Typical Maximum Units Notes
Flash Byte Read Time
Flash Byte Program Time
Flash Page Erase Time
50
20
10
–
–
–
–
40
–
ns
µs
ms
PS017610-0404
Electrical Characteristics
ZILOG [ ZILOG, INC. ]
