Datasheet
Table Of Contents
- FEATURES
- DETAILED DESCRIPTION
- ORDERING INFORMATION
- Figure 1. Block Diagram
- PIN DESCRIPTION
- 80C32 COMPATIBILITY
- Figure 2. Comparative Timing of the DS80C320/DS80C323 and 80C32
- HIGH-SPEED OPERATION
- INSTRUCTION SET SUMMARY
- Table 1. Instruction Set Summary
- SPEED ADVANTAGE SUMMARY
- MEMORY ACCESS
- Figure 3. Typical Memory Connection
- STRETCH MEMORY CYCLE
- Table 2. Data Memory Cycle Stretch Values
- DUAL DATA POINTER
- 64-Byte Block Move without Dual Data Pointer
- 64-Byte Block Move with Dual Data Pointer
- PERIPHERAL OVERVIEW
- SERIAL PORTS
- TIMER-RATE CONTROL
- POWER-FAIL RESET
- POWER-FAIL INTERRUPT
- WATCHDOG TIMER
- Table 3. Watchdog Timeout Values
- INTERRUPTS
- Table 4. Interrupt Priority
- POWER MANAGEMENT
- IDLE MODE ENHANCEMENTS
- STOP MODE ENHANCEMENTS
- Figure 4. Ring Oscillator Startup
- TIMED ACCESS PROTECTION
- SPECIAL-FUNCTION REGISTERS
- Table 5. Special-Function Register Locations
- ELECTRICAL SPECIFICATIONS
- ABSOLUTE MAXIMUM RATINGS
- DC ELECTRICAL CHARACTERISTICS—DS80C320
- NOTES FOR DS80C320 DC ELECTRICAL CHARACTERISTICS
- TYPICAL ICC vs. FREQUENCY
- AC CHARACTERISTICS—DS80C320
- NOTES FOR DS80C320 AC ELECTRICAL CHARACTERISTICS
- MOVX CHARACTERISTICS—DS80C320
- DC ELECTRICAL CHARACTERISTICS—DS80C323
- NOTES FOR DS80C323 DC ELECTRICAL CHARACTERISTICS
- NOTES FOR DS80C323 DC ELECTRICAL CHARACTERISTICS (continued)
- AC ELECTRICAL CHARACTERISTICS—DS80C323
- NOTES FOR DS80C323 AC ELECTRICAL CHARACTERISTICS
- MOVX CHARACTERISTICS—DS80C323
- EXTERNAL CLOCK CHARACTERISTICS
- SERIAL PORT MODE 0 TIMING CHARACTERISTICS
- EXPLANATION OF AC SYMBOLS
- POWER-CYCLE TIMING CHARACTERISTICS
- NOTES FOR POWER CYCLE TIMING CHARACTERISTICS
- PROGRAM MEMORY READ CYCLE
- DATA MEMORY READ CYCLE
- DATA MEMORY WRITE CYCLE
- DATA MEMORY WRITE WITH STRETCH = 1
- DATA MEMORY WRITE WITH STRETCH = 2
- EXTERNAL CLOCK DRIVE
- SERIAL PORT MODE 0 TIMING
- POWER-CYCLE TIMING
- DATA SHEET REVISION SUMMARY
DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
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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.
1. Deleted DS80C323-MND from Ordering Information table (page 2). Device was never manufactured.
The following represent the key differences between the 070505 and 051804 version of the DS80C320/DS80C323 data
sheet. Please review this summary carefully.
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.
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.