TS80C51RA2 Atmel Corporation, TS80C51RA2 Datasheet - Page 2

• Manufacturer Part Number: TS80C51RA2
• Description: High Performance 8-bit Microcontroller
• Manufacturer: Atmel Corporation

Block Diagram
2
TS8xC51Rx2
ALE/
EA/VPP
TS80C51RD2
TS83C51RC2
TS83C51RD2
TS87C51RC2
TS87C51RD2
TS80C51RD2
TS83C51RD2
TS87C51RD2
XTAL1
XTAL2
TS80C51RA2
TS83C51RB2
TS87C51RB2
VQFP44 1.4
VQFP64 1.4
PSEN
PROG
PLCC44
PLCC68
PDIL40
WR
RD
(3)
(3)
CPU
ROM (bytes)
ROM (bytes)
(3)
(3) (3)
Timer 0
Timer 1
EUART
16k
32k
64k
64k
0
0
0
0
0
0
0
(3)
CORE
C51
(3) (3)
256x8
RAM
Ctrl
INT
(2): Only available on high pin count packages
(3): Alternate function of Port 3
(1): Alternate function of Port 1
EPROM (bytes)
EPROM (bytes)
IB-bus
0/16/32/64Kx8
Port 0Port 1 Port 2 Port 3
/EPROM
16k
32k
64k
64k
0
0
0
0
0
0
0
ROM
Parallel I/O Ports & Ext. Bus
256/768x8
XRAM
XRAM (bytes)
XRAM (bytes)
(1)
Port 4
256
768
256
256
768
256
256
768
768
768
768
PCA
(2)
(1)
Port 5
(1)
(2)
Timer2
(1)
Watch
Dog
TOTAL RAM
TOTAL RAM
(bytes)
(bytes)
1024
1024
1024
1024
1024
1024
512
512
512
512
512
4188A–8051–10/02
I/O
I/O
32
32
32
32
32
32
32
32
48
48
48