Hitachi AP1 - Page 306

HMCS404AC--------------------------------------------------------------------------
• SERIAL INTERFACE TIMING CHARACTERISTICS
(Vee=4.5V
to 6V, GND = OV, Vdisp = Vee-40V to Vee, Ta = -20 to +75°C, if not specified.)
• At Transfer Clock Output
Test
Value
Item
Symbol
Pin Name
Conditions
min
typ
Transfer Clock Cycle Time
tSCyc
SCK
(Note 2)
1
-
Transfer Clock "High"
tSCKH
SCK
(Note 2)
0.5
-
Level Width
Transfer
Clock "Low"
tSCKL
SCK
(Note 2)
0.5
-
Level Width
Transfer
Clock Rise Time
tSCKr
SCK
(Note 2)
-
-
Transfer Clock Fall Time
tSCKf
SCK
(Note 2)
-
-
Serial Output Data
toso
SO
(Note 2)
-
-
Delay Time
Serial Input Data Set-up Time
tSSI
SI
300
-
Serial Input Data Hold Time t
HSI
SI
150
-
• At Transfer Clock Input
Test
Value
Item
Symbol
Pin Name
Conditions
min
typ
Transfer Clock Cycle Time
tSCYC
SCK
1
-
Transfer Clock "High"
tSCKH
SCK
0.5
-
Level Width
Transfer
Clock "Low"
tscKL
SCK
0.5
-
Level Width
Transfer
Clock Rise Time
tSCKr
SCK
-
-
Transfer Clock Fall Time
tSCKf
SCK
- -
Serial Output Data
toso
SO
(Note 2)
-
-
Delay Time
Serial Input Data Set-up Time
tSSI
SI
300
-
Serial Input Data Hold Time
tHSI
SI
150
-
(Note 1) Timing Diagram of Serial Interface
5CK Vee -2:0V(07Vee '.
0.8V(O.22Vce) •
so
SI
H
ISS'
____ -« 0.7Vcc
'-____ O.22Vcc
* Vee - 2.0V and O.BV are the threshold voltage for transfer clock output.
0.7 Vee and 0.22 Vee are the threshold voltage for transfer clock inpu!.
(Note 2) Timing load Circuit
Vee
15207418)
or Equiv.
304
Unit
Note
max
-
tCYC
1,2
-
tSCYC
1,2
-
tscyC
1,2
100
ns
1,2
100
ns
1,2
250
ns
1,2
-
ns 1
-
ns
1
Unit
Note
max
-
tCYC
1
-
tSCYC
1
-
tscyC
1
100
ns 1
100
ns 1
250 ns 1,2
-
ns
1
- ns
1