参数资料
型号: MB90F457PMT
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
封装: 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 60/78页
文件大小: 680K
代理商: MB90F457PMT
MB90455 Series
63
(4) UART timing
(VCC
= 4.5 V to 5.5 V, VSS = 0.0 V, TA = 40 °C to +105 °C)
* : Refer to "(1) Clock timing" ratings for tCP (internal operation clock cycle time).
Notes:
AC rating in CLK synchronous mode.
CL is a load capacitance value on pins for testing.
Parameter
Symbol Pin name
Conditions
Value
Unit Remarks
Min
Max
Serial clock cycle time
tSCYC
SCK1
Internal shift clock
mode output pin is :
CL
= 80 pF+1TTL.
8 tCP *
ns
SCK
↓ → SOT delay time
tSLOV
SCK1,
SOT1
80
+80
ns
Valid SIN
→ SCK ↑
tIVSH
SCK1,
SIN1
100
ns
SCK
↑ → valid SIN hold time
tSHIX
SCK1,
SIN1
60
ns
Serial clock “H” pulse width
tSHSL
SCK1
External shift clock
mode output pin is :
CL
= 80 pF+1TTL.
4 tCP *
ns
Serial clock “L” pulse width
tSLSH
SCK1
4 tCP *
ns
SCK
↓ → SOT delay time
tSLOV
SCK1,
SOT1
150
ns
Valid SIN
→ SCK ↑
tIVSH
SCK1,
SIN1
60
ns
SCK
↑ →valid SIN hold time
tSHIX
SCK1,
SIN1
60
ns
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