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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ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground…………………………………………-0.3V to (V
CC
+ 0.5V)
Voltage Range on V
CC
Relative to Ground……………………………………………………..-0.3V to +6.0V
Operating Temperature Range………………………………………………………………….-40°C to +85°C
Storage Temperature Range…………………………………………………………………..-55°C to +125°C
Soldering Temperature…………………………………………….See IPC/JEDEC J-STD-020 Specification
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the
operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of
time may affect reliability.
DC ELECTRICAL CHARACTERISTICS—DS80C320
(V
CC
= 4.5V to 5.5V, T
A
= -40°C to +85°C.)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Operating Supply Voltage V
CC
4.5 5.0 5.5 V 1
Power-Fail Warning Voltage V
PFW
4.25 4.38 4.55 V 1
Minimum Operating Voltage V
RST
4.0 4.1 4.25 V 1, 12
Supply Current Active Mode at 25MHz I
CC
30 45 mA 2
Supply Current Idle Mode at 25MHz I
IDLE
15 25 mA 3
Supply Current Active Mode at 33MHz I
CC
35 mA 2
Supply Current Idle Mode at 33MHz I
IDLE
20 mA 3
Supply Current Stop Mode,
Bandgap Reference Disabled
I
STOP
0.01 1 µA 4
Supply Current Stop Mode,
Bandgap Reference Enabled
I
SPBG
50 80 µA 4, 10
Input Low Level V
IL
-0.3 +0.8 V 1
Input High Level (Except XTAL1 and RST) V
IH1
2.0 V
CC
+ 0.3 V 1
Input High Level XTAL1 and RST V
IH2
3.5 V
CC
+ 0.3 V 1
Output-Low Voltage Ports 1, 3
at I
OL
= 1.6mA
V
OL1
0.45 V 1
Output-Low Voltage Ports 0, 2, ALE, PSEN
at I
OL
= 3.2mA
V
OL2
0.45 V 1, 5
Output-High Voltage Ports 1, 3, ALE, PSEN
at I
OH
= -50µA
V
OH1
2.4 V 1, 6
Output High Voltage Ports 1, 3
at I
OH
= -1.5mA
V
OH2
2.4 V 1, 7
Output-High Voltage Ports 0, 2, ALE, PSEN
at I
OH
= -8mA
V
OH3
2.4 V 1, 5
Input Low Current Ports 1, 3 at 0.45V I
IL
-55 µA 11
Transition Current from 1 to 0
Ports 1, 3 at 2V
I
TL
-650 µA 8
Input Leakage Port 0, Bus Mode I
L
-300 +300 µA 9
RST Pulldown Resistance R
RST
50 170
k