at89lp2052-20xi ATMEL Corporation, at89lp2052-20xi Datasheet - Page 88

• Manufacturer Part Number: at89lp2052-20xi
• Description: At89lp2052 8-bit Microcontroller With 2/4-kbyte Flash
• Manufacturer: ATMEL Corporation

27. Revision History
88
Revision A – March 2005
Revision B – June 2005
Revision C – August 2005
Revision D – April 2006
Revision E – June 2006
Revision F – June 2006
Revision G – April 2007
Revision H – May 2007
AT89LP2052/LP4052
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Initial Release
Last paragraph in
In
Changed the Maximum Bit Frequency from f/2 to f/4 in the
“Serial Peripheral Interface” on page
In the
from Shift Register box.
In the
to the following:
Replaced CM3 with CM2 in Bit 2 of register ACSR
In the
made in specific bit positions within the Addr High, Addr Low and Data 0 columns.
Added ROHS compliant device offerings.
In pages 1,
maximum rating for the operating temperature was changed from +125° C to +85° C.
In
In section
from low to high.
Added
Changed TMOD to TCON
Changed SPI = 1 and SPI = 0 to SPE = 1 and SPE = 0
Table 16-3 on page
Table 6-1 on page
“Programming Command Summary” on page
“SPI Block Diagram” on page
“SPSR – SPI Status Register” on page
Section 11. “Oscillator Characteristics” on page
7.8 ”Reset” on page 8
81
and 82, the reference to V
÷4÷8÷32÷64
Section 13.2 on page 14
6, changed the SFR address of SPDR from 85H to 86H.
25, changed the SFR address for TCONB from 88H to 91H.
(Table 16-1 on page
changed the polarity of the RST input signal requirement
42, the 16-bit reference was deleted
41.
CC
was inserted.
= 2.7V were changed to 2.4V. On
45, the Divider ratios were changed
26).
(page
57, several changes were
11.
(Table 19-1 on page
49)
44).
page 78
3547H–MICRO–5/07
the