20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 27
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
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Part Number:
20-668-0011
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
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The 32 kHz oscillator can be used to drive the processor and peripheral clock to provide
significant power savings in “ultra-sleepy” modes. The 32 kHz oscillator can be divided
by 2, 4, 8, or 16 to provide clock speeds as low as 2.048 kHz. Special self-timed chip
selects are available to keep the memory devices enabled for as short a time as possible
when an ultra-sleepy mode is enabled; see Chapter 25 for more details on reducing power
consumption.
When the 32 kHz clock is enabled, the periodic interrupt is disabled automatically. The
real-time clock and watchdog timers keep running, and use the full 32 kHz clock even
when the processor and peripheral clocks use a divider on the 32 kHz clock.
Chapter 2 Clocks
Table 2-4. Ultra-Sleepy Clock Modes
xxxxx000
xxxxx100
xxxxx101
xxxxx110
xxxxx111
GPSCR
Setting
Peripheral Clock
Processor and
32.768 kHz
16.384 kHz
8.192 kHz
4.096 kHz
2.048 kHz
17
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