D7225G NEC, D7225G Datasheet - Page 39

• Manufacturer Part Number: D7225G
• Description: Search -----> UPD7225G
• Manufacturer: NEC

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AC Characteristics (T
Notes 1. UNSYNCHRONIZED TRANSFER MODE
Operating frequency
Oscillation frequency
High level clock pulse width
Low level clock pulse width
/SCK frequency
High level /SCK pulse width
Low level /SCK pulse width
/BUSY
SI set time (against /SCK )
SI hold time (against /SCK )
8th pulse of /SCK
delay time
/CS
/BUSY low level time
C, /D set time (against 8th pulse
of SCK )
C, /D hold time (against 8th pulse
of SCK )
/CS hold time (against 8th pulse of
SCK )
High level /CS pulse width
Low level /CS pulse width
/SYNC load capacitance
2. BLINKING ON
3. 8/fc
/BUSY
For SYNCHRONIZED TRANSFER MODE,
t
/SCK
WHCS
Item
delay time
hold time
(48/f
/BUSY
C
A
+ AC driver frequency)
= 10 to +70 C, V
Symbol
t
t
t
t
C
f
t
t
t
t
t
t
t
t
t
t
WHCS
WLCS
DCSB
HKCS
WHC
WHK
t
t
OSC
WLC
WLK
WLB
HKD
CYK
HBK
DKB
SDK
f
SIK
HKI
LSY
C
DD
R = 180 k
CL1, external clock
CL1, external clock
C
C
t
t
WHCS
CYC
Data Sheet S14308EJ6V0DS00
= 5 V
L
L
= 50 pF
= 50 pF
= 5 s
48/f
10%)
C
Note 1
5%
Condition
C
L
= 50 pF
Note 3
Note 3
MIN.
900
400
400
100
200
50
85
2
2
0
4
9
1
1
TYP.
130
44 (57)
MAX.
200
175
1.5
Note 2
16
16
50
3
PD7225
Units
kHz
kHz
1/f
ns
ns
ns
ns
ns
ns
pF
s
s
s
s
s
s
s
s
s
C
39