
2
AT/T89C51CC02
4126L–CAN–01/08
Description
Part of the CANary
TM family of 8-bit microcontrollers dedicated to CAN network applica-
tions, the T89C51CC02 is a low-pin count 8-bit Flash microcontroller.
In X2 Mode a maximum external clock rate of 20 MHz reaches a 300 ns cycle time.
Besides the full CAN controller T89C51CC02 provides 16K Bytes of Flash memory
including In-System Programming (ISP), 2K Bytes Boot Flash Memory, 2K Bytes
EEPROM and 512 Bytes RAM.
Special attention is payed to the reduction of the electro-magnetic emission of
T89C51CC02.
Block Diagram
Note:
1. 8 analog Inputs/8 Digital I/O.
2. 2-bit I/O Port.
Timer 0
INT
RAM
256x8
T0
T1
Rx
D
Tx
D
XTAL2
XTAL1
UART
CPU
Timer 1
INT
1
Ctrl
INT
0
C51
CORE
P2
(2
)
Port 1 Port 2 Port 3
Parallel I/O Ports
P1
(1
)
P3
XRAM
256 x 8
IB-bus
PCA
RESE
T
Watch
Dog
PCA
ECI
Vs
s
Vc
c
Timer 2
T2
EX
T2
Port 4
P4
(2
)
10-bit
ADC
Flash
16K x
8
Boot
loader
2K x 8
EE
PROM
2K x 8
CAN
CONTROLLER
Tx
D
C
Rx
DC
VAV
C
VAREF
VAG
N
D