AT89C51IC2-RLTIM ATMEL [ATMEL Corporation], AT89C51IC2-RLTIM Datasheet - Page 3

• Manufacturer Part Number: AT89C51IC2-RLTIM
• Description: 8-bit Flash Microcontroller with 2-wire Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Block Diagram
Figure 1. Block Diagram
4301C–8051–06/06
ALE/PROG
XTAL1
XTAL2
PSEN
WR
EA
RD
(2)
(2)
CPU
(1): Alternate function of Port 1
(2): Alternate function of Port 3
(2) (2)
(2)
Timer 0
Timer 1
EUART
BRG
(2)
+
CORE
C51
(2) (2)
RAM
256
INT
Ctrl
x8
IB-bus
Port 0 Port 1
Parallel I/O Ports & Ext Bus
32K x 8
Flash
Port 2
Port 3 Port 12
(1)
(1)
PCA
(1)
Watch
Timer 2
Dog
(1)
Board
Key
Two-Wire
AT89C51IC2
(1)
SPI
(1)
(1)
(1)
3