668-0003-C Rabbit Semiconductor, 668-0003-C Datasheet - Page 62

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

Specifications of 668-0003-C

• Rohs Status: RoHS non-compliant
• 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
• Features: -
• Other names: 316-1004; 668-0003

56
Power
Serial Ports
Slave Port
Pin Group
VBAT
VDD
VSS
CLKA
CLKB
RXA, TXA,
RXB, TXB,
RXC, TXC,
RXD, TXD
ARXA,
ATXA,
ARXB,
ATXB
SD0-SD7
/SLAVEATT
N
/SRD
/SWR
SA0, SA1
/SCS
Pin Name
Table 5-1. Rabbit Pin Descriptions (continued)
Input/
Output
Input/
Output
RX—input
TX—output
RX—input
TX—output
Bidirectional
Output
Input
Input
Input
Input
Direction
+3.0 V (battery backup), +3.3 V or +5.0 V 42
+3.3 V or +5.0 V
Ground
Clock for serial port A when operating in
synchronous mode. Alternate assignment
for PB1.
Clock for serial port B when operating in
synchronous mode. Alternate assignment
for PB0.
Serial inputs and output for serial ports A–
D. These are alternate pin assignments for
parallel port C.
Alternate serial inputs and output for serial
ports A and B. These are alternate pin
assignments for parallel port D, PD4–PD7.
Slave port data bus. An alternate
assignment for parallel port A.
/SLAVEATTN—Slave is requesting
attention from the master. An alternate pin
assignment for parallel port B, bit 7.
Strobe used to read one of the slave
registers. An alternate pin assignment for
parallel port B, bit 3.
Strobe used to write a slave register. An
alternate pin assignment for parallel port B,
bit 2.
Address lines to address slave registers.
An alternate pin assignment for parallel
port B, bits 4 and 5.
Chip select for slave port, active low. An
alternate pin assignment for parallel port E,
bit 7.
Rabbit 2000 Microprocessor User’s Manual
Function
3, 28, 53, 78, 92
2, 27, 39, 52,
77, 89
94
93
51, 54–60
43–46
81–88
100
96
95
97,98
21
Pin Numbers