20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 285
20-668-0011
Manufacturer Part Number
20-668-0011
Description
IC MPU RABIT3000A 55.5MHZ128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
Specifications of 20-668-0011
Processor Type
Rabbit 3000 8-Bit
Speed
55.5MHz
Voltage
2.5V, 2.7V, 3V, 3.3V
Mounting Type
Surface Mount
Package / Case
128-LQFP
Data Bus Width
8 bit
Maximum Clock Frequency
55.5 MHz
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 55 C
Number Of Programmable I/os
56
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
316-1061
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
20-668-0011
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
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B.1.5 Memory Protection
The ability to inhibit writes to physical memory was added. The sixteen 64 KB physical
memory blocks can be individually protected, and two of those blocks can additionally be
subdivided and protected at a granularity of 4 KB. When a write is attempted, a new
Priority 3 write-protection interrupt request is generated.
The write-protection can be enabled for the User mode only or for all modes (see
Chapter 26 for more information).
Appendix B Rabbit 3000 Revisions
0xFFFFF
0x00000
WPHR = 0x0085
WPLR = 0x006C
Figure B-1. Sample Memory Protection Layout
WPSAR = 0x0004
WPSAHR = 0x0007
WPSALR = 0x00CC
0x4FFFF
0x48000
0x40000
275
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