AK7712 Asahi Kasei Microsystems, AK7712 Datasheet - Page 7

• Manufacturer Part Number: AK7712
• Description: Built-in 20-bit ADC/DAC Sophisticated Audio DSP
• Manufacturer: Asahi Kasei Microsystems

ASAHI KASEI
„ „ „ „ Power Supply
„ „ „ „ External RAM Interface Signal
0180-E-02
24, 32, 50,
70, 73
25, 31, 49,
69, 72
87, 97
86, 96
79, 99
10, 11, 74,
75
Pin No.
Pin No.
41 48,
51 59
61 68
40
39
38
60
DVDD
DVSS
AVDD
AVSS
AVB
DVB
A16 A0
WE
RESCE
CASRF
IO0 IO7
OE
Pin name
Pin name
I/O
I/O
I/O
O
O
O
O
O
-
-
-
-
-
-
Digital ground
Analog power supply
Analog ground
Analog substrate power supply
Digital substrate power supply
Address output for external RAM
Write signal output
RAS for external DRAM
CAS for external DRAM
Data input/output for external RAM
Output enable signal output
Digital power supply
Pin / Function
for external SRAM/ Pseudo-SRAM/ DRAM
for external SRAM/ Pseudo-SRAM/ DRAM
- 7 -
(A0:LSB justified, A16:MSB justified)
/ Pseudo-SRAM-CE
/ Pseudo-SRAM refresh
Function
Function
[AK7712A-VT]
1997/12