20-668-0003 Rabbit Semiconductor, 20-668-0003 Datasheet - Page 117
20-668-0003
Manufacturer Part Number
20-668-0003
Description
IC CPU RABBIT2000 30MHZ 100PQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0003.pdf
(228 pages)
Specifications of 20-668-0003
Processor Type
Rabbit 2000 8-Bit
Speed
30MHz
Voltage
2.7V, 3V, 3.3V, 5V
Mounting Type
Surface Mount
Package / Case
100-MQFP, 100-PQFP
Data Bus Width
8 bit
Maximum Clock Frequency
30 MHz
Operating Supply Voltage
0 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
40
Number Of Timers
8 & 10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
20-668-0003
316-1062
316-1062
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
20-668-0003
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
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There are two timers—Timer A and Timer B. Timer A is intended mainly for generating
the baud clock for the serial ports, a periodic clock for clocking parallel ports D and E, or
for generating periodic interrupts. Timer B can be used for the same functions, but it can-
not generate the baud clock. Timer B is more flexible when it can be used because the pro-
gram can read the time from a continuously running counter and events can be
programmed to occur at a specified future time.
Figure 11-1 shows a block diagram of Timers A and B.
Chapter 11 Timers
perclk/2
Timer B System
f/8
Figure 11-1. Block Diagram of Timers A and B
A1
Timer A System
match preload
match preload
10-bit counter
match reg
match reg
10 bits
compare
Timer_B1
11. T
Timer_B2
A5
A4
A6
A7
IMERS
111
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