DS80C320 Datasheet, PDF (39/40 Pages) Dallas Semiconductor – High-Speed/Low-Power Micro

DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
DATA SHEET REVISION SUMMARY
The following represent the key differences between the 051804 and the 112299 version of the DS80C320/DS80C323 data
sheet. Please review this summary carefully.
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_LHLL, t_LLAX1, t_LLAX2, t_LLAX2,
t_LLIV, t_LLPL, t_PLIV, t_AVIV1, t_RLDV, t_RHDZ, t_LLDV, t_AVDV1, t_AVDV2, t_LLWL, t_AVWL1, t_AVWL2, t_QVWX, t_WHQX, t_WHLH.
5. Updated the following DS80C320 AC timing parameters with final characterization data: t_WHQX, t_LHLL, t_LLAX2, tLLDV,
t_AVDV1, t_LLWL, t_AVWL1, t_AVWL2.
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.
The following represent the key differences between the 041896 and the 052799 version of the DS80C320 data sheet. Please
review this summary carefully.
1. Corrected V_CC pin description to show DS80C323 operation at +3V.
2. Corrected Timed Access description to show three-cycle window.
3. Modified absolute Maximum Ratings for any pin relative to around, V_CC relative to ground.
4. Changed minimum oscillator frequency to 1MHz when using external crystal.
5. Clarified that t_POR begins when XTAL1 reaches V_IH2.
The following represent the key differences between the 103196 and the 041896 version of the DS80C320 data sheet. Please
review this summary carefully.
1. Updated DS80C320 25MHz AC Characteristics.
The following represent the key differences between the 041895 and the 031096 version of the DS80C320 data sheet. Please
review this summary carefully.
1. Remove Port 0, Port 2 from V_OH1 specification (PCN B60802).
2. V_OH1 test specification clarified (RST = V_CC).
3. Add t_AVWL2 marking to External Memory Read Cycle figure.
4. Correct TQFP drawing to read 44-pin TQFP.
5. Rotate page 1 TQFP illustration to match assembly specifications.
The following represent the key differences between the 031096 and the 052296 version of the DS80C320 data sheet. Please
review this summary carefully.
1. Added Data Sheet Revision Summary section.
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.
DS80C320:
1. Add DS80C323 Characteristics.
2. Change DS80C320 V_PFW specification from 4.5V to 4.55V (PCN E62802).
3. Update DS80C320 33MHz AC Characteristics.
DS80C323:
1. Delete Data Sheet. Contents moved to DS80C320/DS80C323.
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