Hitachi AP1 - Page 230

HMCS404C--------------------------------------------------------------
• SERIAL INTERFACE TIMING CHARACTERISTICS
(Vee -4V to 6V, GND = OV, Vdilp· Vee -40V to Vee. Ta = -20 to +15°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
500
-
Serial Input Data Hold Time
tHSI
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
500
-
Serial Input Data Hold Time
tHSI
SI
150
-
(Note 11 Timing Diagram of Serial Interface
SCK Vee-2.0V(0.7Vee>.
0.8V(O.22Vcc) •
so
SI
>-{
t
SSI
____ -« O.7Vcc
'\... ____ . _ O.22Vcc
• Vcc - 2.0V and O.BV are the threshold voltage for transfer clock output.
0.7 Vce and 0.22 Vce are the threshold voltage for transfer clock input.
(Note 21 Timing load Circuit
Test
Point
Vee
C R 1520748
~
Rl=2'6k!.l
30pF 12kQ or Equiv.
228
Unit
Note
max
-
tcyc
1.2
-
tSCYC
1.2
-
t
ScyC
1.2
100
ns
1.2
100
ns
1.2
300
ns
1.2
-
ns 1
-
ns 1
Unit
Note
max
-
tcyc
1
-
tscyc
1
-
tScyC
1
100
ns 1
100
ns 1
300 ns
1.2
-
ns
1
-
ns
1