COP8SAA728N9 National Semiconductor, COP8SAA728N9 Datasheet - Page 27

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COP8SAA728N9

Manufacturer Part Number
COP8SAA728N9
Description
IC MCU OTP 8BIT 1K 28DIP
Manufacturer
National Semiconductor
Series
COP8™ 8SAr
Datasheet

Specifications of COP8SAA728N9

Core Processor
COP8
Core Size
8-Bit
Speed
10MHz
Connectivity
Microwire/Plus (SPI)
Peripherals
POR, PWM, WDT
Number Of I /o
24
Program Memory Size
1KB (1K x 8)
Program Memory Type
OTP
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
*COP8SAA728N9
COP8SAA728N9B
9.0 Interrupts
9.1 INTRODUCTION
The device supports eight vectored interrupts. Interrupt
sources include Timer 1, Timer T0, Port L Wakeup, Software
Trap, MICROWIRE/PLUS, and External Input.
All interrupts force a branch to location 00FF Hex in program
memory. The VIS instruction may be used to vector to the
appropriate service routine from location 00FF Hex.
FIGURE 21. Interrupt Block Diagram
27
The Software trap has the highest priority while the default
VIS has the lowest priority.
Each of the six maskable inputs has a fixed arbitration
ranking and vector.
Figure 21 shows the Interrupt Block Diagram.
DS012838-28
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