Z51F3220FNX Datasheet, PDF (285/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
“H”
VDD
“H”
Internal nPOR
“H”
PAD RESETB
LVR_RESETB
BIT (for Config)
F1
00 01 02 ^{.. ..}
.. _{27 28}
F1
BIT (for Reset)
Config Read
00
01
02
03
04
00
1us X 256 X 28h = about 10ms
RESET_SYSB
INT-OSC (8MHz)
Main OSC Off
1us X 4096 X 4h = about 16ms
INT-OSC 8MHz/8
INT-OSC 8MHz / 8 = 1MHz (1us)
Figure 13.11 Configuration timing when BOD RESET
13.8 LVI Block Diagram
VDD
LVIREF
2.00V
2.10V
2.20V
2.32V
2.44V
Reference
Voltage
Generator
2.59V
2.75V
2.93V
3.14V
M
U
X
3.38V
3.67V
4.00V
4.40V
LVI Circuit
LVIEN
4
LVILS[3:0 ]
Figure 13.12 LVI Diagram
LVIF
PS029902-0212
PRELIMINARY
283