UPD7759C 查看數據表（PDF） - NEC => Renesas Technology
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UPD7759C Datasheet PDF : 18 Pages
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µPD7759
2.3 STANDBY MODE
(1) TIMING REQUIREMENTS
Parameters
Standby escape signal
L*Note pulse width
Symbol
Conditions
tAW
VDD = 5 V ± 10 %
MIN. TYP. MAX. Unit
350
ns
(2) SWITCHING CHARACTERISTICS
Parameters
Operation mode hold time
D/A converter activate
/inactivate time
BUSY set up time
Synthesis start time
BUSY output delay
Symbol
Conditions
tSTB after synthesis
tDA
tSB
from L* ↓
tSSS after D/A converter activation
In standby mode, oscillation
tSBS
start time is included.
Note L*: Signal to release standby mode.
CS ST : When operation mode is stand alone mode.
=
CS WR: When operation mode is slave mode
MIN.
TYP.
2.9
MAX.
3
Unit
s
46.5
47
ms
6.25
10
µs
2.1
2.2
ms
4
80
ms
TIMING CHART (Standby mode)
L*
BUSY
max
IAVO mid
0
tSTB
tDA
tAW
tSB
tSBS
tDA tSSS
Synthesis
14
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