DS80C320 Maxim, DS80C320 Datasheet - Page 37

• Manufacturer Part Number: DS80C320
• Description: The DS80C320/DS80C323 are fast 80C31/80C32-compatible microcontrollers
• Manufacturer: Maxim

DATA SHEET REVISION SUMMARY
The following represent the key differences between the 101006 and 070505 version of the DS80C320/DS80C323 data
sheet. Please review this summary carefully.
The following represent the key differences between the 070505 and 051804 version of the DS80C320/DS80C323 data
sheet. Please review this summary carefully.
The following represent the key differences between the 051804 and the 112299 version of the DS80C320/DS80C323 data
sheet. Please review this summary carefully.
The following represent the key differences between the 041896 and the 052799 version of the DS80C320 data sheet. Please
review this summary carefully.
The following represent the key differences between the 103196 and the 041896 version of the DS80C320 data sheet. Please
review this summary carefully.
The following represent the key differences between the 041895 and the 031096 version of the DS80C320 data sheet. Please
review this summary carefully.
The following represent the key differences between the 031096 and the 052296 version of the DS80C320 data sheet. Please
review this summary carefully.
The following represent the key differences between 05/23/96 and 05/22/96 version of the DS80C320 data sheet and
between 05/23/96 and 03/27/95 version of the DS80C323 data sheet. Please review this summary carefully.
1. Deleted DS80C323-MND from Ordering Information table (page 2). Device was never manufactured.
2. Added Pb-free/RoHS-compliant part numbers to Ordering Information table.
3. Deleted the “A” from the IPC/JEDEC J-STD-020 specification in the Absolute Maximum Ratings.
1. Removed “Preliminary” status as a result of final characterization.
2. Added industrial temperature DS80C323 devices to ordering information.
3. Updated soldering temperature specification to reflect JEDEC standards.
4. Updated the following DS80C323 AC timing parameters with final characterization data: t
5. Updated the following DS80C320 AC timing parameters with final characterization data: t
6. Added note advising the need to reset watchdog timer before setting the Stop bit.
7. Added note clarifying drive strength of P0, P2, ALE, PSEN .
8. Obsoleted DS80C320 25MHz AC timing tables; merged into 33MHz AC timing tables.
9. Corrected Serial Port Mode 0 Timing diagrams to show correct order of D6, D7.
1. Corrected V
2. Corrected Timed Access description to show three-cycle window.
3. Modified absolute Maximum Ratings for any pin relative to around, V
4. Changed minimum oscillator frequency to 1MHz when using external crystal.
5. Clarified that t
1. Updated DS80C320 25MHz AC Characteristics.
1. Remove Port 0, Port 2 from V
2. V
3. Add t
4. Correct TQFP drawing to read 44-pin TQFP.
5. Rotate page 1 TQFP illustration to match assembly specifications.
1. Added Data Sheet Revision Summary section.
DS80C320:
1. Add DS80C323 Characteristics.
2. Change DS80C320 V
3. Update DS80C320 33MHz AC Characteristics.
DS80C323:
1. Delete Data Sheet. Contents moved to DS80C320/DS80C323.
t
t
LLIV
AVDV1
OH1
, t
test specification clarified (RST = V
AVWL2
, t
LLPL
LLWL
, t
marking to External Memory Read Cycle figure.
PLIV
CC
, t
AVWL1
POR
pin description to show DS80C323 operation at +3V.
, t
AVIV1
begins when XTAL1 reaches V
, t
PFW
AVWL2
, t
RLDV
specification from 4.5V to 4.55V (PCN E62802).
.
, t
OH1
RHDZ
specification (PCN B60802).
, t
LLDV
, t
CC
AVDV1
).
DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
, t
IH2
37 of 38
AVDV2
.
, t
LLWL
, t
AVWL1
CC
, t
AVWL2
relative to ground.
, t
QVWX
, t
WHQX
WHQX
LHLL
, t
WHLH
, t
, t
LHLL
LLAX1
.
, t
, t
LLAX2
LLAX2
, tLLDV,
, t
LLAX2
,