参数资料
型号: FSQ0565RS
厂商: FAIRCHILD SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 2.5 A SWITCHING CONTROLLER, 75.8 kHz SWITCHING FREQ-MAX, ZFM6
封装: ROHS COMPLIANT, TO-220F, 6 PIN
文件页数: 9/23页
文件大小: 2856K
代理商: FSQ0565RS
General Release Specification
Mask Option Register
MC68HC805K3 — Rev. 1.0
MOTOROLA
General Description
17
Mask Option Register Bit to Convert STOP Instruction to Halt
Mode
Illegal Address Reset
Internal Steering Diode and Pullup Resistor on RESET Pin to VDD
Internal RESET Pin Pulldown from COP Watchdog and ILADR
NOTE:
A line over a signal name indicates an active low signal. For example,
RESET is active high and RESET is active low.
Any reference to voltage, current, or frequency specified in the following
sections refers to the nominal values. The exact values and their
tolerance or limits are specified in Section 12. Electrical
1.4 Mask Option Register
The MC68HC805K3 contains these nine programmable options:
1. COP Watchdog Timer (Enable or Disable)
2. IRQ Triggering (Edge-Sensitive or Edge- and Level-Sensitive)
3. Port A Interrupts (Enable or Disable)
4. Port Software Programmable Pulldowns (Enable or Disable)
5. STOP Instruction (Enable or Disable)
6. Oscillator Type (Crystal/Ceramic Resonator or RC)
7. RC Oscillator Type (2-Pin or 3-Pin)
8. RC Oscillator Startup Delay (4064 or 16 f
OP Cycles)
9. User EEPROM and PEEP Security (Enable or Disable)
NOTE:
The startup delay of 16 f
OP cycles and the crystal/ceramic resonator
oscillator should not be selected together.
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