参数资料
型号: MC68HC705JB2DW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDSO20
封装: SOIC-20
文件页数: 35/128页
文件大小: 2493K
代理商: MC68HC705JB2DW
GENERAL RELEASE SPECIFICATION
August 28, 1998
GENERAL DESCRIPTION
MC68HC705JB2
1-2
REV 1.1
1.2
MASK OPTIONS
The mask options on the MC68HC705JB2 are handled with ve EPROM bits in
the Mask Option Register ($01FF). These options are:
External interrupt pins (IRQ, PA0 to PA3):
[edge-triggered or edge-and-level-triggered]
Port A and port B pull-down/pull-up resistors:
[connected or disconnected]
PA0-PA3 external interrupt capability:
[enabled or disabled]
OSC, crystal/ceramic resonator startup delay:
[4064 or 128 internal bus cycles]
Low Voltage Reset (LVR):
[enabled or disabled]
To program the MOR, the MORON bit in the Program Control Register
(bit 3 of $3E) must be set to “1”.
IRQTRIG – IRQ, PA0-PA3 Interrupt Options
1 =
Edge-trigger only
0 =
Edge-and-level-triggered
PULLREN – Port A and B Pullup/Pulldown Options
1 =
Connected
0 =
Disconnected
PAINTEN – PA0-PA3 External Interrupt Options
1 =
Disabled
0 =
Enabled
OSCDLY – Oscillator Delay Option
1 =
128 internal clock cycles
0 =
4064 internal clock cycles
LVREN – LVR Option
1 =
Enabled
0 =
Disabled
bit-7
bit-6
bit-5
bit4
bit-3
bit-2
bit1
bit-0
MOR
$01FF
Read
IRQTRIG
PULLREN
PAINTEN
OSCDLY
LVREN
Write
Erased
0001
1
111
Reset
Unaffected
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For More Information On This Product,
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相关PDF资料
PDF描述
MC68HC705JB2P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP20
MC68HC705JB4P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28
MC68HC705K1CDW 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO16
MC68HC705K1CP 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP16
MC68HC705K1S 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, CDIP16
相关代理商/技术参数
参数描述
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