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參數(shù)資料
| 型號： | APC5890 |
| 廠商： | Aplus Integrated Circuits Inc. |
| 英文描述： | APC5890 DE-COMPRESSION VOICE IC |
| 中文描述： | APC5890德壓縮語音IC |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 252K |
| 代理商： | APC5890 |
APLUS INTEGRATED CIRCUITS INC.
APC5890
www.aplusinc.com.tw
TEL : 886-2-2782-9266
P
IN
N
AME
RESET
PWM1,PWM2
DAC
XOSC1
XOSC2
CAP
PA0-PA7
I/O
I
O
O
I
O
I
I/O
D
ESCRIPTION
R
ESET INPUT
. A
CTIVE LOW
.
PWM
OUTPUT
.
O
UTPUT FROM
D/A
CONVERTER
.
C
RYSTAL OSCILLATOR INPUT PIN
.
C
RYSTAL OSCILLATOR OUTPUT PIN
.
C
APACITOR FOR
PLL
CIRCUIT
.
I/O
PORT
_
A PIN
0
TO
7.
A
LSO AS EXTERNAL INTERRUPT SOURCE
(
FALL EDGE TRIGGER
).
I/O
PORT
_
A PIN
8
TO
12.
I/O
PORT
_
A PIN
13
OR ANALOG SIGNAL INPUT
.
I/O
PORT
_
A PIN
14
I/O
PORT
_
A PIN
15
P
ORT
_
B OR
E
XTERNAL MEMORY BANK SELECT
P
ORT
_
B PIN
6
OR
E
XTERNAL
RAM
READ
(A
CTIVE
L
OW
).
P
ORT
_
B PIN
7
OR
E
XTERNAL
RAM
SELECT PIN
(A
CTIVE
L
OW
)
P
ORT
_
B PIN
8
OR
E
XTERNAL
RAM
LOW BYTE WRITE
(A
CTIVE
L
OW
).
P
ORT
_
B PIN
9
OR
E
XTERNAL
IRQ
INPUT PIN
(
RISE EDGE TRIGGER
).
P
ORT
_
B PIN
10
OR
E
XTERNAL
RAM
HIGH BYTE WRITE
(A
CTIVE
L
OW
)
P
ORT
_
B PIN
11 ROM
SELECT OR EXTERNAL
ROM
CHIP
SELECT
(A
CTIVE
L
OW
)
PC:16
BITS PROGRAMMABLE
IO
PORTS
.
EMEMAD: E
XTERNAL MEMORY
A
DDRESS
/D
ATA
.
I
F IT IS ADDRESS THEN
EMEMA0~EMEMA12
IS
A1~A13.
EMEMA13~EMEMA15
IS
BANK0~BANK2.
E
XTERNAL MEMORY ADDRESS LATCH ENABLE
.
D
IGITAL POWER INPUT
.
D
IGITAL GROUND
.
P
OWER AND GROUND FOR
PLL
CIRCUIT
.
P
OWER AND GROUND FOR
DAC
CIRCUIT
.
PA8-PA12
PA13/ADC
PA14
PA15
IO
I/O
I/O
I/O
O
O
PB0-PB5/BANK3-BANK8
PB6/EMEMRD
PB7/EXTRAM
O
PB8/EMEMWRL
O
PB9/EXTIRQ
I/O
PB10/EMEMWRH
O
PB11/EXTROMCS
I/O
PC/EMEMAD
I/O
ALE
O
I
I
I
I
VDD1-VDD4
GND1-GND4
PLLVDD,PLLGND
DACVDD,DACGND
4.
ADDRESS ARRANGEMENT :
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