MB89051PFM View Datasheet(PDF) - 3M
Part Name
Description
MFG CO.
'MB89051PFM' PDF : 40 Pages View PDF
MB89051 Series
(5) UART Serial I/O Timing
Parameter
Symbol Pin name
Serial clock cycle time
UCK ↓ → UO
Valid UI → UCK ↑
UCK ↑ → valid UI hold time
Serial clock “H” pulse width
Serial clock “L” pulse width
UCK ↓ → UO time
Valid UI → UCK ↑
UCK ↑ → valid UI hold time
tSCYC
tSLOV
tIVSH
tSHIX
tSHSL
tSLSH
tSLOV
tIVSH
tSHIX
UCK
UCK, UO
UI, UCK
UCK, UI
UCK
UCK, UO
UI, UCK
UCK, UI
* : For information on tinst, see “ (4) Instruction Cycle”.
(VCC = 5.0 V, VSS = 0 V, TA = −40 °C to +85 °C)
Condition
Value
Min
Max
Unit Remarks
2 tinst*
µs
Internal shift
clock mode
−200
200
+200
ns
ns
200
ns
1 tinst*
µs
External
1 tinst*
µs
shift clock
0
200
ns
mode
200
ns
200
ns
• Internal shift clock mode
UCK
0.2 Vcc
tSLOV
tSCYC
0.8 Vcc
0.2 Vcc
UO
0.8 Vcc
0.2 Vcc
tIVSH
tSHIX
0.8 VCC
0.8 VCC
UI
0.2 VCC
0.2 VCC
• External shift clock mode
UCK
UO
UI
tSLSH
0.2 VCC
tSLOV
0.2 VCC
tSHSL
0.8 VCC
0.8 VCC
0.8 Vcc
0.2 Vcc
tIVSH
0.8 VCC
0.2 VCC
tSHIX
0.8 VCC
0.2 VCC
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