參數(shù)資料
型號： M37548G1FP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
封裝： 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20
文件頁數(shù)： 69/86頁
文件大?。?/td> 1437K
代理商： M37548G1FP
Rev.2.02
Mar 31, 2009
Page 69 of 81
REJ03B0210-0202
7548 Group
(6) Timing Requirements
Table 20 Timing requirements (1)
(VCC = 4.0 to 5.5 V, VSS = 0 V, Ta =
20 to 85 °C, unless otherwise noted)
NOTES:
1. As for CAP0, it is the value when noise filter is not used.
2. In this time, bit 6 of the serial I/O control register (address 001A16) is set to “1” (clock synchronous serial I/O is selected).
When bit 6 of the serial I/O control register is “0” (clock asynchronous serial I/O is selected), the rating values are divided by 4.
Table 21 Timing requirements (2)
(VCC = 2.4 to 5.5 V, VSS = 0 V, Ta =
20 to 85 °C, unless otherwise noted)
NOTES:
1. As for CAP0, it is the value when noise filter is not used.
2. In this time, bit 6 of the serial I/O control register (address 001A16) is set to “1” (clock synchronous serial I/O is selected).
When bit 6 of the serial I/O control register is “0” (clock asynchronous serial I/O is selected), the rating values are divided by 4.
Reset input “L” pulse width
External clock input cycle time
External clock input “H” pulse width
External clock input “L” pulse width
INT0, INT1, CAP0 input “H” pulse width (Note 1)
INT0, INT1, CAP0 input “L” pulse width (Note 1)
Serial I/O clock input cycle time (Note 2)
Serial I/O clock input “H” pulse width (Note 2)
Serial I/O clock input “L” pulse width (Note 2)
Serial I/O input set up time
Serial I/O input hold time
Symbol
Parameter
Limits
Unit
Min.
2
125
50
80
800
370
220
100
Typ.
s
ns
Max.
______
tW(RESET)
tC(XIN)
tWH(XIN)
tWL(XIN)
tWH(INT0)
tWL(INT0)
tC(SCLK)
tWH(SCLK)
tWL(SCLK)
tsu(RXD-SCLK)
th(SCLK-RXD)
Reset input “L” pulse width
External clock input cycle time
External clock input “H” pulse width
External clock input “L” pulse width
INT0, INT1, CAP0 input “H” pulse width (Note 1)
INT0, INT1, CAP0 input “L” pulse width (Note 1)
Serial I/O clock input cycle time (Note 2)
Serial I/O clock input “H” pulse width (Note 2)
Serial I/O clock input “L” pulse width (Note 2)
Serial I/O input set up time
Serial I/O input hold time
Symbol
Parameter
Limits
Unit
Min.
2
250
100
230
2000
950
400
200
Typ.
s
ns
Max.
______
tW(RESET)
tC(XIN)
tWH(XIN)
tWL(XIN)
tWH(INT0)
tWL(INT0)
tC(SCLK)
tWH(SCLK)
tWL(SCLK)
tsu(RXD-SCLK)
th(SCLK-RXD)
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