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参数资料
| 型号： | M34250E2-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, OTPROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | PLASTIC, SOP-20 |
| 文件页数： | 26/61页 |
| 文件大小： | 654K |
| 代理商： | M34250E2-XXXFP |
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29
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Fig. 27 Clock control circuit structure
Clock signal f(XIN) is obtained by connecting XIN pin and XOUT
pin directly, and externally connecting a resistor to XIN and a
capacitor to XOUT. Connect this external circuit to pins XIN and
XOUT at the shortest distance.
When an external clock signal is input, note the input waveform
(refer to the list of precaution).
ROM ORDERING METHOD
Please submit the information described below when ordering
Mask ROM.
(1) M34250M2-XXXFP Mask ROM Order Confirmation Form
.............................................................................................. 1
(2) Data to be written into mask ROM ......................... EPROM
(three sets containing the identical data)
(3) Mark Specification Form ..................................................... 1
Fig. 28 Resistor and capacitor external circuit
CLOCK CONTROL
The clock control circuit consists of the following circuits.
System clock generating circuit
Control circuit to stop the clock oscillation
Control circuit to return from the RAM back-up state
Internal clock
generating circuit
(divided by 4)
Instruction clock
RESET
G0/INT pin
K02
0
1
Ports G1–G3
Ports S0–S3
Key-on wakeup control register
K00, K01
Counter
Wait time control
circuit (Note)
Software
start signal
Note: The wait time control circuit is used to start the microcomputer operation after 3584 to 3585 machine cycles
for the time required to stabilize the f(XIN) oscillation.
Oscillation
circuit
R
S
Q
POF instruction
XIN
XOUT
Multiplexer
Rising
Falling
Rising detected
M34250M2-XXXFP
XIN
XOUT
The system clock frequency
is affected by a capacitor, a
resistor and an LSI, So, set
the constants within the
range of the frequency limits.
相关PDF资料 |
PDF描述 |
|---|---|
| M34250M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34250M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34280M1-XXXFP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34280M1-XXXGP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34280E1GP | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M34250M2 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-066FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-086FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-099FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34250M2-116FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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