參數(shù)資料
型號(hào)： M37512F8HP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù)： 83/89頁
文件大小： 877K
代理商： M37512F8HP
Feb 18, 2005
page 82 of 85
REJ03B0122-0101
7512 Group
Reset input “L” pulse width
External clock input cycle time
External clock input “H” pulse width
External clock input “L” pulse width
CNTR0, CNTR1 input cycle time
CNTR0, CNTR1 input “H” pulse width
CNTR0, CNTR1 input “L” pulse width
INT0 to INT3 input “H” pulse width
INT0 to INT3 input “L” pulse width
Serial I/O1 clock input cycle time (Note)
Serial I/O1 clock input “H” pulse width (Note)
Serial I/O1 clock input “L” pulse width (Note)
Serial I/O1 clock input set up time
Serial I/O1 clock input hold time
Serial I/O2 clock input cycle time
Serial I/O2 clock input “H” pulse width
Serial I/O2 clock input “L” pulse width
Serial I/O2 clock input set up time
Serial I/O2 clock input hold time
tW(RESET)
tC(XIN)
tWH(XIN)
tWL(XIN)
tC(CNTR)
tWH(CNTR)
tWL(CNTR)
tWH(INT)
tWL(INT)
tC(SCLK1)
tWH(SCLK1)
tWL(SCLK1)
tsu(RxD-SCLK1)
th(SCLK1-RxD)
tC(SCLK2)
tWH(SCLK2)
tWL(SCLK2)
tsu(SIN2-SCLK2)
th(SCLK2-SIN2)
Limits
XIN cycles
ns
Parameter
Min.
20
250
100
500
230
2000
950
400
200
2000
950
400
300
Typ.
Max.
Symbol
Unit
Note : When f(XIN) = 4 MHz and bit 6 of address 001A16 is “1” (clock synchronous).
Divide this value by four when f(XIN) = 8 MHz and bit 6 of address 001A16 is “0” (UART).
Table 33 Switching characteristics
(VCC = 2.5V±2%, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Serial I/O1 clock output “H” pulse width
Serial I/O1 clock output “L” pulse width
Serial I/O1 output delay time (Note 1)
Serial I/O1 output valid time (Note 1)
Serial I/O1 clock output rising time
Serial I/O1 clock output falling time
Serial I/O2 clock output “H” pulse width
Serial I/O2 clock output “L” pulse width
Serial I/O2 output delay time (Note 2)
Serial I/O2 output valid time (Note 2)
Serial I/O2 clock output falling time
CMOS output rising time (Note 3)
CMOS output falling time (Note 3)
tWH (SCLK1)
tWL (SCLK1)
td (SCLK1-TXD)
tv (SCLK1-TXD)
tr (SCLK1)
tf (SCLK1)
tWH (SCLK2)
tWL (SCLK2)
td (SCLK2-SOUT2)
tv (SCLK2-SOUT2)
tf (SCLK2)
tr (CMOS)
tf (CMOS)
Limits
ns
Parameter
Min.
tC(SCLK1)/2–50
–30
tC(SCLK2)/2–240
0
Typ.
20
Symbol
Unit
Notes 1: For tWH(SCLK1), tWL(SCLK1), when the P25/TXD P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.
2: When the P01/SOUT2 and P02/SCLK2 P-channel output disable bit of the Serial I/O2 control register (bit 7 of address 001516) is “0”.
3: The XOUT pin is excluded.
Max.
350
50
400
50
Test conditions
Fig. 82
(VCC = 2.5V±2%, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
TIMING REQUIREMENTS
Table 32 Timing requirements
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參數(shù)描述
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