TS80C54 ATMEL [ATMEL Corporation], TS80C54 Datasheet - Page 2

• Manufacturer Part Number: TS80C54
• Description: 8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
• Manufacturer: ATMEL [ATMEL Corporation]

2. Block Diagram
2
AT/TS8xC54/8X2
ALE/
EA/VPP
XTAL1
XTAL2
PSEN
PROG
WR
RD
The TS80C54/58X2 has 2 software-selectable modes of reduced activity for further reduction in
power consumption. In the idle mode the CPU is frozen while the timers, the serial port and the
interrupt system are still operating. In the power-down mode the RAM is saved and all other
functions are inoperative.
(2)
(2)
CPU
VQFP44 1.4
TS80C54X2
TS80C58X2
TS87C54X2
TS87C58X2
PQFP44 F1
PLCC44
PDIL40
(2)
(2) (2)
Timer 0
Timer 1
EUART
(2)
CORE
C51
(2) (2)
256x8
RAM
Ctrl
INT
(2): Alternate function of Port 3
(1): Alternate function of Port 1
IB-bus
Port 0Port 1 Port 2 Port 3
Parallel I/O Ports
/EPROM
16/32Kx8
ROM
ROM (bytes)
16k
32k
0
0
(1)
Timer2
(1)
Watch
Dog
EPROM (bytes)
16k
32k
0
0
4431E–8051–04/06