MT9079
AC Electrical Characteristics- Intel and Motorola Serial Microcontroller Timing
Characteristics
Sym Min
Typ
Max
Units
Conditions/Notes
1
2
3
4
5
6
7
8
Clock Pulse Width High
Clock Pulse Width Low
CS Setup
tPWH
tPWL
tCSS
tCSH
tWS
100
75
5
400
425
ns
ns
ns
ns
ns
ns
ns
ns
SCLK period = 500ns
SCLK period = 500ns
CS Hold
5
Write Setup
35
5
Write Hold
tWH
Output Delay
tOD
55
30
CL=150pF
Active to High Z Delay
tAZD
CL=150pF, RL=1kΩ
tCSS
CS
VTT
tPWH
tPWL
SCLK
VTT
tCSH
tWS
tWH
RxD
(INPUT)
bit 7
bit 0
bit 7
VTT
bit 0
tAZD
tOD
SIO
(OUTPUT)
VTT,
bit 7
bit 0
VCT
Figure 18 - Motorola Serial Microcontroller Timing
CS
tCSS
tPWH
tPWL
SCLK
VTT
tCSH
tWH
tWS
SIO
(INPUT)
bit 0
bit 7
bit 0
VTT
bit 7
tAZD
bit 7
tOD
VTT,
VCT
SIO
(OUTPUT)
bit 0
Figure 19 - Intel Serial Microcontroller Timing
4-283
MITEL [ MITEL NETWORKS CORPORATION ]
