UPD4990AG Renesas Electronics America, UPD4990AG Datasheet - Page 13

• Manufacturer Part Number: UPD4990AG
• Manufacturer: Renesas Electronics America

Specifications of UPD4990AG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

NEW COMMAND
VALID
TIMING DIAGRAM FOR SETTING COMMANDS (C
DATA
V
Note: Command (C
CLK
STB
IN
DD
V
CS = "H"
A mode is latched by STB and held until another mode in the same group is set.
SS
= 2.0 V
Other than time read mode
V
V
t
DSU
IH
IL
Time read mode
OLD MODE
OLD MODE
V
V
IH
IL
2
, C
C
0
1
'
, C
0
) is set to (1, 1, 1)
t
t
t
t
t
t
DSU
DHLD
HLD
STB
d1
d2
t
DHLD
C
1
'
= 1 s MIN.
= 1 s MIN.
= 1 s MIN.
= 1 s MIN.
= 1 s MAX. (Other than time read mode)
= 20 s MAX. (Time read mode)
Figure 2.
C
2
'
0
', C
C
3
'
1
', C
V
V
t
IH
IL
2
HLD
', C
V
V
V
V
IH
IL
IH
IL
3
')
t
t
STB
d1
t
d2
NEW MODE
PD4990A
NEW MODE
11