20-668-0003 Rabbit Semiconductor, 20-668-0003 Datasheet - Page 207

• Manufacturer Part Number: 20-668-0003
• Description: IC CPU RABBIT2000 30MHZ 100PQFP
• Manufacturer: Rabbit Semiconductor

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

B.1 Rabbit 2000 Revisions
Since its release, the Rabbit 2000 microprocessor has gone through a number of revisions.
The revisions reflect bug fixes, improvements, and the introduction of new features. All
Rabbit 2000 revisions are pin-compatible and transparently replace previous versions of
the chip.
The Rabbit 2000 has been supplied in the following versions.
1. Original Rabbit 2000—identified by IQ2T on the package. This original Rabbit 2000
2. First revision (Rabbit 2000A)—identified by IQ3T on the package. This version
Appendix B Rabbit 2000 Revisions
began shipping in November,1999, and was phased out in January, 2002. There were
several bugs:
began shipping in January, 2002. All the bugs in the original Rabbit 2000 were fixed,
and additional new features were added:
(a) Certain instructions did not function correctly as described in Technical Note
(b) The external interrupt inputs had to be tied together with a resistor as described
(c) Wait states did not function properly when used to access code in slower mem-
(a) Support for separate I & D space.
(b) An additional register in the serial port hardware simplifies sending out an
(c) Improvements in the battery-backup hardware allow for implementation of a
A
TN302, Rabbit 2000 Instruction Bug. The Dynamic C compiler corrects this
situation automatically.
in Technical Note TN301, Rabbit 2000 Microprocessor Interrupt Problem.
ories because certain instructions failed in these circumstances. This bug is
fixed in the Rabbit 2000A through Rabbit 2000C revisions.
additional stop bit or parity bit.
simplified circuit for backing up the real-time clock and associated static
RAM. A new bug exists in the block copy instruction between separate I & D
spaces that is only active when the separate I & D space is enabled. This bug is
automatically corrected by Dynamic C.
PPENDIX
B. R
ABBIT
2000 R
EVISIONS
201