ZLF645E0H2864G00TR Maxim Integrated, ZLF645E0H2864G00TR Datasheet - Page 183
ZLF645E0H2864G00TR
Manufacturer Part Number
ZLF645E0H2864G00TR
Description
8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
Manufacturer
Maxim Integrated
Datasheet
1.ZLF645E0H4864G2204.pdf
(201 pages)
Specifications of ZLF645E0H2864G00TR
Core
Z8
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
64 KB
Data Ram Size
1 KB
Operating Supply Voltage
2 V to 3.6 V
Package / Case
SSOP-28
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Number Of Programmable I/os
5
Number Of Timers
2 x 8 bit, 1 x 16 bit
Processor Series
ZLF645
Program Memory Type
Flash
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Table 86. User Option Byte 1 Shadow Register (OPT1SR)
19-4572; Rev 0; 4/09
[0]
Bit
Field
Reset State
CPU Access (R/W)
Register Address (R/W)
Note:
RESERVED bits when read by the CPU will return 0 and when written have no effect.
1
0
FLRWP —Flash Main Memory Protect
Flash Main Memory and Information Area Page 3 can be read, programmed,
and erased by both the Flash Byte Programming interface or through the ICP
interface.
Reads and writes to the Flash main memory and writes and erasures to
Information Area Page 3 by the ICP or Flash Byte Programming interfaces is
disabled unless, with this bit 0, a main memory mass erase is completed first.
A main memory mass erase causes resetting of this bit value in the Option
Byte 1 shadow register to a 1 but does not effect the corresponding Flash
memory bit. Once the Option Byte 1 shadow register bit is reset, the ICP or
Flash Byte Programming interface is allowed full read, write, and erase access
to the Flash’s main memory and to Page 3 of the Information Area and can
reset the corresponding Flash memory bit.
X
7
RESERVED
X
6
X
5
Bank D: 0Fh; Linear: D0Fh
X
4
16BITSTK DIVBY1 FLPROT1 FLRWP
R/W
X
3
ZLF645 Series Flash MCUs
R/W
2
1
Product Specification
R
X
1
Operation
X
R
0
175
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