YGV639 Datasheet, PDF (24/34 Pages) YAMAHA CORPORATION – Video Controller 1 with Enhanced Functions

YGV639
Power Supply and Reset Input
No.
Items
Symbol Min.
Typ.
Max. Unit Note
1 RESET_N pin Input Time
t_wRES
10
μs 1
CPU Access Stand-by Time after RESET_N
2
Negation
t_wAW
10 to 67
ms
3 RESET_N Setup Time
Power-on Time Difference
4
(VDD33, VDDIN, AVDD)
t_sRES
0
t_VSKWR
ns 2
1
s3
Power-off Time Difference
5
(VDD33, VDDIN, AVDD)
t_VSKWF
1
s4
6 Power Rise Time
7 VDD5Power-on/off Time Difference
t_VRISE
t_VSKWC
-1
200
ms
s5
8 Core Power VOUT18 Rise Time
t_vCORE
300
μs 6
9 OCPEN pin Input Time (Initialization)
t_wOCPE
10
μs
10 OCPEN pin Low Input Time (Abnormal)
t_wOCPR
0.4
10
ms
Note 1) This is the time from when the following three conditions are met to the time when RESET_N rises:
The voltage of the last power supply that was powered on reached at 3.0V, VOUT18 reached at
1.7V, and an input clock to XIN pin becomes stable.
Note 2) This is the specification of the first power supply that was powered up, out of VDD33, VDDIN, and
AVDD.
Note 3) It is recommended VDD33, VDDIN, and AVDD be turned on simultaneously. If one second or more
time-difference occurs it may have an adverse effect on LSI's reliability.
Note 4) It is recommended VDD33, VDDIN, and AVDD be turned off simultaneously. If it takes more than
one second, it may have an adverse effect on LSI's reliability.
Note 5) It is possible to shutdown 3V power supply (VDD33, VDDIN, and AVDD) with 5V power (VDD5)
applied.
Note 6) This is the value with four capacitors of 4.7μF connected to VOUT18 and VDDCORE pins.
VDD5
VDD33
VDDIN
AVDD
6
3.0v
3.0v (VDD5=3.3V)
4.75v (VDD5=5.0V)
1
7
6
3.0v
3.0v
1.65v
6
4
VOUT18
RESET_N
CS_N
1.7v
3
1
1
2
1
2
XIN
5
VDD33 ^3.0v
AVDD
VDD5
7
3.0v (VDD5=3.3V)
4.75v (VDD5=5.0V)
24