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参数资料
| 型号： | M34283G2-XXXGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20 |
| 文件页数： | 13/41页 |
| 文件大小： | 441K |
| 代理商： | M34283G2-XXXGP |
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Rev.1.01
Mar 20, 2006
page 18 of 62
REJ03B0109-0101
4283 Group
Fig. 19 Reset release timing
RESET FUNCTION
The 4283 Group has the power-on reset circuit, though it does
not have RESET pin. System reset is performed automatically
at power-on, and software starts program from address 0 in page
0.
In order to make the built-in power-on reset circuit operate
efficiently, set the voltage rising time until VDD= 0 to 2.2 V is
obtained at power-on 1ms or less.
Fig. 20 Structure of reset pin and its peripherals, and power-on reset operation
f(XIN)
Internal reset signal
f(XIN) 16384 pulses
Software operation starts
(address 0 in page 0)
“H”
“L”
VDD
Internal reset signal
Power-on reset circuit
Voltage drop detection circuit
Watchdog timer output
Power-on reset circuit
output voltage
Reset state
Internal reset signal
Reset released
Power-on
Note on Power-on reset
Under the following condition, the system reset occurs by the
built-in the power-on reset circuit of this product;
-
when the supply voltage (VDD) rises from 0 V to 2.2 V, within
1 ms.
Also, note that system reset does not occur under the
following conditions;
-
when the supply voltage (VDD) rises from the voltage higher
than 0V, or
-
when it takes more than 1 ms for the supply voltage (VDD)
to rise from 0 V to 2.2 V.
(1) Internal state at reset
Table 6 shows port state at reset, and Figure 21 shows internal
state at reset (they are retained after system is released from
reset).
The contents of timers, registers, flags and RAM except shown
in Figure 21 are undefined, so set the initial value to them.
Table 6 Port state at reset
Name
D0–D3
D4–D7
G0–G3
E0, E1
CARR
State at reset
High impedance state
High impedance state (Pull-down transistor OFF)
“L” output
Note: The contents of all output latch is initialized to “0.”
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M34286 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34286G2GP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34286G2GP#U0 | 功能描述:MCU 1.8/3.6V 2KB ROM 20-LSSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:720/4500 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| M34286G2GP#WC | 制造商:Renesas Electronics Corporation 功能描述:4BIT MCU |
| M34286G2-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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