參數(shù)資料
型號(hào)： MSM6789
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： SBC Solid-State Recorder IC
中文描述： 西南貝爾固態(tài)記錄器集成電路
文件頁(yè)數(shù)： 6/53頁(yè)
文件大?。?/td> 813K
代理商： MSM6789
MSM6789A/6789L
Semiconductor
PIN DESCRIPTIONS (for MSM6789A (5 V Version))
Symbol
Type
Description
DV
DD
—
Digital power supply.
Insert a bypass capacitor of 0.1
m
F or more between this
pin and the DGND pin.
Analog power supply.
Insert a bypass capacitor of 0.1
m
F or more between this
pin and the AGND pin.
Digital ground.
Analog ground.
Output for analog circuit reference voltage (signal ground).
Inverting input of the built-in OP amplifier.
The non-inverting input pin is
internally connected to SG (signal ground).
AV
DD
—
DGND
AGND
SG, SGC
MIN
LIN
MOUT
LOUT
—
—
—
I
Output of the built-in OP amplifier for MIN and LIN.
O
AMON
O
Connected to the LOUT pin in the recording mode and to the DA converter
output in the playback mode.
This pin connects the built-in LPF input (FIN pin).
Input of the built-in LPF.
FIN
FOUT
ADIN
I
O
I
Output of the built-in LPF.
This pin connects the AD converter input (ADIN pin).
Input of the built-in 12-bit AD converter.
Output of the built-in LPF.
This pin outputs playback waveforms and connects
an external speaker drive amplifier.
This pin selects whether memory to be connected externally is DRAM or serial register.
Low level
High level
This pin selects either 1-bit
￥
type DRAM or 4-bit
￥
type DRAM.
Low level
High level
: 4-bit
￥
type
AOUT
O
DRAM/
SR
I
4B/
1B
I
A0 (SADY)
A1 (SADX)
These pins connect to A0 and A1 of DRAM at the time of DRAM selection. They also
connect to SAD pin of serial register and serial voice ROM at the time of serial
register selection. These pins output leading addresses of read/write.
This pin connects to A2 of DRAM at the time of DRAM selection. It also connects
to
TAS
pin of serial register and serial voice ROM at the time of serial register selection.
This pin is used to set serial addresses from the SADX and SADY pins into the
internal address counter of the serial register and serial voice ROM.
This pin connects to A3 of DRAM at the time of DRAM selection. It also connects
to the
SAS
pin of the serial register and the
SASX
and
SASY
pins of the serial voice
ROM at the time of serial register selection. Clock pin to write serial addresses.
This pin connects to A4 of DRAM at the time of DRAM selection. It also connects
to the
RWCK
pin of the serial register and the
RDCK
pin of the serial voice ROM at
the time of serial register selection. Clock pin to read data from and write data into
the serial register.
This pin connects to pins A5-A10 of DRAM at the time of DRAM selection.
This pin outputs addresses of read/write.
O
A2 (
TAS
)
O
A3 (
SAS
)
O
A4 (
RWCK
)
O
: Serial register
: DRAM
: 1-bit
￥
type
A10-A5
O
Pin
90
47
40, 55
54
48, 49
53
51
52
50
46
45
43
42
44
66
88
79
78
77
76
75
1-6
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參數(shù)描述
MSM6789A 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:SBC Solid-State Recorder IC
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