SM5906AF
NIPPON PRECISION CIRCUITS INC.
Shock-proof Memory Controller for Video CD Players
Overview
The SM5906AF is a shock-proof memory controller
LSI for video CD players. The operating mode can
be set to CD-DA mode, V-CD mode, or Super V-CD
mode, and external memory can be selected from 2
options (4M, 16M). It operates from a 2.7 to 3.6 V
supply voltage range.
Features
– 2-channel processing
– Serial data input
•
2s complement, 16-bit/MSB first
•
Right-justified format
•
Wide capture function
(up to 4
×
speed input rate)
•
Selectable 16/24/32-bit clock
– System clock input
•
384fs (16.9344 MHz)
– Shock-proof memory controller
•
Selectable CD-DA/V-CD/SVC mode
•
2 external DRAM configurations selectable
1
×
16M DRAM (4M
×
4 bits, refresh cycle =
2048 cycle)
1
×
4M DRAM (1M
×
4 bits)
– Microcontroller interface
•
Serial command write and status read-out
•
Data residual detector:
11-bit operation, 16-bit output
(Bits 13 to 15 bit are fixed LOW.)
•
Forced mute
– Extension I/O
Microcontroller interface for external control
using 3 extension I/O pins
– +2.7 to +3.6 V operating voltage range
– Schmitt inputs
All input pins (including I/O pins) except CLK
(system clock)
– Reset signal noise elimination
Approximately 3.8
µs
or longer (65 system
clock pulses) continuous LOW-level reset
- 48-pin QFP package (0.5 mm pin pitch)
Pinout
(Top View)
YMCLK
27
YMDATA
26
NCAS
36
35
34
33
32
31
30
29
28
NRAS
NWE
VSS3
A10
D1
D0
D3
D2
Ordering Information
SM5906AF
48pin QFP
VDD4
A9
A8
A7
A6
A5
A4
A0
A1
A2
A3
VSS4
25
VDD3
24
23
22
21
37
38
39
40
41
42
43
44
45
46
47
48
10
11
12
1
2
3
4
5
6
7
8
9
VSS2
YMLD
YDMUTE
ZSENSE
NRESET
YBLKCK
YFLAG
ZC2PO
ZSRDATA
ZSCK
ZLRCK
VDD2
SM5906AF
JAPAN
20
19
18
17
16
15
14
13
YSRDATA
VDD1
YLRCK
NTEST1
TEST2
NIPPON PRECISION CIRCUITS-1
YC2PO
YSCK
VSS1
UC1
UC2
UC3
CLK
SM5906AF
Package dimensions
(Unit: mm)
48-pin QFP
0.5
0.125 0.02
5
9 0.4
7
0.1
0.5 0.2
9 0.4
1.7max
0.1
0.1
0.18 0.05
7
0.1
1.4 0.1
0.5
Pin description
Pin number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin name
VDD1
UC1
UC2
UC3
NTEST1
TEST2
CLK
YC2PO
YSRDATA
YLRCK
YSCK
VSS1
VDD2
ZLRCK
ZSCK
I/O
–
Iu/O
Iu/O
Iu/O
Iu
Id
I
I
I
I
I
–
–
O
O
Function
H
VDD supply pin
Microcontroller interface extension I/O 1
Microcontroller interface extension I/O 2
Microcontroller interface extension I/O 3
Test pin
Test pin
16.9344 MHz clock input
Serial input C2PO data
Serial input data
Serial input LR clock
Serial input bit clock
Ground
VDD supply pin
Serial output LR clock
Serial output bit clock
Left channel
Right channel
Left channel
Right channel
Test
Test
Setting
L
Iu : Input pin with pull-up resistor, Id : Input pin with pull-down resistor
Iu/O : Input/Output pin (With pull-up resistor when in input mode)
NIPPON PRECISION CIRCUITS-2
SM5906AF
Pin description
Pin number
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Pin name
ZSRDATA
ZC2PO
YFLAG
YBLKCK
NRESET
ZSENSE
YDMUTE
YMLD
VSS2
VDD3
YMDATA
YMCLK
NRAS
NCAS
D2
D3
D0
D1
NWE
A10
VSS3
VDD4
A9
A8
A7
A6
A5
A4
A0
A1
A2
A3
VSS4
I/O
O
O
I
I
I
O
I
I
–
–
I
I
O
O
Iu/O
Iu/O
Iu/O
Iu/O
O
O
–
–
O
O
O
O
O
O
O
O
O
O
–
Function
H
Serial output data
Serial output C2PO data
Signal processor IC RAM overflow flag
Subcode block clock signal
System reset pin
Microcontroller interface status output
Forced mute pin
Microcontroller interface latch clock
Ground
VDD supply pin
Microcontroller interface serial data
Microcontroller interface shift clock
DRAM RAS control
DRAM CAS control
DRAM data input/output 2
DRAM data input/output 3
DRAM data input/output 0
DRAM data input/output 1
DRAM WE control
DRAM address 10
Ground
VDD supply pin
DRAM address 9
DRAM address 8
DRAM address 7
DRAM address 6
DRAM address 5
DRAM address 4
DRAM address 0
DRAM address 1
DRAM address 2
DRAM address 3
Ground
Mute
Reset
Setting
L
Iu : Input pin with pull-up resistor, Id : Input pin with pull-down resistor
Iu/O : Input/Output pin (With pull-up resistor when in input mode)
NIPPON PRECISION CIRCUITS-3
SM5906AF
Absolute maximum ratings
(V
SS1
= V
SS2
= V
SS3
= V
SS4
= 0V, V
DD1
, V
DD2
, V
DD3
, V
DD4
pin voltage = V
DD
)
Parameter
Supply voltage
Input voltage
Storage temperature
Power dissipation
Soldering temperature
Soldering time
Symbol
V
DD
V
I
T
STG
P
D
T
SLD
Rating
– 0.3 to 4.0
V
SS
– 0.3 to V
DD
+ 0.3
– 55 to 125
340
255
10
Unit
V
V
˚C
mW
˚C
sec
t
SLD
Note. Refer to pin summary on the next page.
Values also apply for supply inrush and switch-off.
Electrical characteristics
Recommended operating conditions
(V
SS1
= V
SS2
= V
SS3
= V
SS4
= 0V, V
DD1
, V
DD2
, V
DD3
, V
DD4
pin voltage = V
DD
)
Parameter
Supply voltage
Operating temperature
Symbol
V
DD
T
OPR
Rating
2.7 to 3.6
– 10 to 70
Unit
V
˚C
DC characteristics
Standard voltage:(V
DD1
= V
DD2
= V
DD3
= V
DD4
= 2.7 to 3.6V, V
SS1
= V
SS2
= V
SS3
= V
SS4
= 0V, Ta = – 10 to 70˚C)
Parameter
Current consumption
Input voltage
Pin
VDD
CLK
(*2,3,5)
(*4)
Output voltage
(*5)
(*6)
Input current
Input leakage current
(*4)
(*3,5)
(*1,2,5)
(*1,2,4)
H level
L level
H level
L level
H level
L level
H level
L level
H level
L level
I
IH
I
IL
I
LH
I
LL
Symbol
I
DD
V
IH1
V
IL1
V
IH2
V
IL2
V
IH3
V
IL3
V
OH1
V
OL1
V
OH2
V
OL2
I
OH
= – 1.0 mA
I
OL
= 1.0 mA
I
OH
= – 1.0 mA
I
OL
= 1.0 mA
V
IN
= V
DD
V
IN
= 0V
V
IN
= V
DD
V
IN
= 0V
10
10
25
25
V
DD
– 0.4
0.4
80
80
1.0
1.0
V
DD
– 0.4
0.4
0.8V
DD
0.2V
DD
V
DD
– 0.3
0.6
Condition
Min
(*A)SHPRF ON
(*A)Through mode
0.8V
DD
0.2V
DD
Rating
Typ
4.5
1.5
Max
9.0
3.0
mA
mA
V
V
V
V
V
V
V
V
V
V
µA
µA
µA
µA
Unit
(*A) V
DD1
= V
DD2
= V
DD3
= V
DD4
= 3 V, CLK input frequency f
XTI
= 384fs = 16.9344 MHz, all outputs unloaded,
SHPRF: Shock-proof,
typical values are for V
DD1
= V
DD2
= V
DD3
= V
DD4
= 3 V.
NIPPON PRECISION CIRCUITS-4
SM5906AF
<Pin summary>
(*1)
(*2)
Pin function
Pin name
Pin function
Pin name
Clock input pin
CLK
Schmitt input pins
YSRDATA, YLRCK, YSCK, YC2PO, YFLAG, NRESET,
YBLKCK, YDMUTE, YMLD, YMDATA, YMCLK
Schmitt input pin with pull-up
NTEST1
Schmitt pin with pull-down
TEST2
I/O pins (Schmitt input with pull-up in input state)
UC1, UC2, UC3, D0, D1, D2, D3
Outputs
ZSCK, ZLRCK, ZSRDATA, ZC2PO, ZSENSE, NCAS, NWE,
NRAS, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10
(*3)
(*4)
(*5)
(*6)
Pin function
Pin name
Pin function
Pin name
Pin function
Pin name
Pin function
Pin name
NIPPON PRECISION CIRCUITS-5
NXP MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
