AT89LP2052_06 Datasheet, PDF (86/90 Pages) ATMEL Corporation – 8-bit Microcontroller with 2/4-Kbyte Flash

26. Revision History
Revision A – March 2005
Revision B – June 2005
Revision C – August 2005
Revision D – April 2006
Revision E – June 2006
Revision F – June 2006
• Initial Release
• Last paragraph in Section 12.2 on page 12 was inserted.
• In Table 15-3 on page 23, changed the SFR address for TCONB from 88H to 91H.
• Changed the Maximum Bit Frequency from f/2 to f/4 in the
“Serial Peripheral Interface” on page 39.
• In the “SPI Block Diagram” on page 40, the 16-bit reference was deleted
from Shift Register box.
• In the “SPSR – SPI Status Register” on page 43, the Divider ratios were changed
to the following: ÷4÷8÷32÷64
• Replaced CM3 with CM2 in Bit 2 of register ACSR (page 47)
• In the “Programming Command Summary” on page 55, several changes were
made in specific bit positions within the Addr High, Addr Low and Data 0 columns.
• Added ROHS compliant device offerings.
• In pages 1, 79 and 80, the reference to V_CC = 2.7V were changed to 2.4V. On page 76 the
maximum rating for the operating temperature was changed from +125°C to +85°C.
• In Table 6-1 on page 6, changed the SFR address of SPDR from 85H to 86H.
86 AT89LP2052/LP4052
3547F–MICRO–6/06