Z8FMC16100 Series Flash MCU
Product Specification
265
On-Chip Peripheral AC and DC Electrical Characteristics
Table 141 provides electrical characteristics and timing information for the POR and VBO
circuits.
Table 141. POR and VBO Electrical Characteristics and Timing
T = –40ºC to 105ºC
A
1
Symbol Parameter
Minimum Typical
Maximum Units Conditions
V
Power-on reset
2.20
2.45
2.40
50
2.70
V
V
= V
.
POR
POR
DD
voltage threshold
V
Voltage Brown-Out
reset voltage threshold
2.15
2.65
V
V
= V
.
VBO
DD
VBO
V
–V
75
—
mV
V
POR VBO
Starting V voltage to
—
—
—
V
SS
DD
ensure valid Power-On
Reset.
T
T
Power-On Reset
analog delay
50
—
—
ms
V
> V ; T
POR POR
ANA
DD
Digital Reset delay
follows T
.
ANA
Power-On Reset digital
delay
5.0
ms 50 WDT Oscillator
cycles (10KHz) + 16
System Clock cycles
(20MHz).
POR
T
T
Voltage Brown-Out
—
10
—
—
ms
V
< V
to generate
VBO
VBO
DD
pulse rejection period
a Reset.
Time for V to
0.10
100
ms
RAMP
DD
transition from V to
SS
V
to ensure valid
POR
Reset
Supply current
I
500
µA
V
= 3.3V.
DD
CC
Notes:
1. Data in the typical column is from characterization at 3.3V and 250C. These values are provided for design guid-
ance only and are not tested in production.
PS024604-1005
P R E L I M I N A R Y
On-Chip Peripheral AC and DC Electrical
ZILOG [ ZILOG, INC. ]
