參數(shù)資料
型號: 4571
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 62/126頁
文件大小: 1627K
代理商: 4571
Rev.1.02
May 25, 2007
Page 40 of 124
REJ03B0179-0102
4571 Group
(2) Power-on reset
Reset can be automatically performed at power on (power-on
reset) by the built-in power-on reset circuit. When the built-in
power-on reset circuit is used, set the time for the supply voltage
to rise from 0 V to the minimum voltage of recommended
operating conditions to 100
s or less.
If the rising time exceeds 100
s, connect a capacitor between
the RESET pin and Vss at the shortest distance, and input “L”
level to RESET pin until the value of supply voltage reaches the
minimum operating voltage.
(3) System reset instruction (SRST)
By executing the SRST instruction, “L” level is output to RESET
pin and system reset is performed.
Fig 42. Power-on reset operation
Note 1.Output latch is set to “1.”
Note 2.The output structure is N-channel open-drain.
Note 3.Pull-up transistor is turned OFF.
100
sor less
VDD (Note 1)
Power-on reset
circuit output
Internal reset signal
Note: Keep the value of supply voltage to
the minimum value or more of the
recommended operating conditions.
Reset
released
Reset
state
Power-on
Table 18 Port state at reset
Name
Function
State
D0
D3
D0
D3
High-impedance (Notes 1, 2)
D4/CNTR0
D4
High-impedance (Note 1)
P00
P03
P00
P03
High-impedance (Notes 1, 3)
P10
P13
P10
P13
High-impedance (Notes 1, 3)
P20/INT0, P21/INT1
P20
, P21
High-impedance (Notes 1, 3)
P30, P31
High-impedance (Notes 1, 2)
C/CNTR1
(VSS)
K
High-impedance
相關(guān)PDF資料
PDF描述
45722.123.242 1 mm2, COPPER ALLOY, WIRE TERMINAL
45733.201.004 2.5 mm2, COPPER ALLOY, WIRE TERMINAL
45733.417.031 2.5 mm2, WIRE TERMINAL
45744.123.211 6 mm2, COPPER ALLOY, WIRE TERMINAL
45744.201.004 6 mm2, COPPER ALLOY, WIRE TERMINAL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
4571_08 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Standard Characteristics
45-710 制造商:GC Electronics 功能描述:EXTENSION CABLE, PARALLEL, 6FT, PUTTY; Cable Length - Imperial:6ft; Cable Length - Metric:1.83m; Connector Type A:Centronics 36 Position Plug; Connector Type B:Centronics 36 Position Receptacle; Jacket Color:Putty; Cable Color:Putty 制造商:Calrad Electronics 功能描述:Cable Assembly Parallel 6m 28AWG 36 POS SCSI to 36 POS SCSI M-F
4-571011-3 功能描述:ANVIL 制造商:te connectivity amp connectors 系列:* 零件狀態(tài):有效 標準包裝:1
457102-1 制造商:TE Connectivity 功能描述:BLOCK, PLATE MTG - Bulk
45710224PTC2103 制造商:Omron Corporation 功能描述: