STV0681 pin description
STV0681
Table 15: STV0681 pin listing
Pin no.
28
Signal
Type
Output
Description
drive
AD13
SDRAM address A13, BA1 for 64M SDRAM, unused
on 16M
2mA
(SL)
25
23
21
19
18
100
2
CS
Output, active low Chip select: enables (registered LOW) and disables
(registered HIGH) the SDRAM command decoder.
2mA
(SL)
RAS
CAS
WE
Output, active low SDRAM row address strobe command
Output, active low SDRAM column address strobe command
Output, active low SDRAM write enable command
2mA
(SL)
2mA
(SL)
2mA
(SL)
DQML
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
Output
Data input/output mask for dram_DQ[7:0]
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data bus
SDRAM Data bus
SDRAM Data bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
SDRAM Data Bus
2mA
(SL)
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
2mA
(SL)
2mA
(SL)
4
2mA
(SL)
6
2mA
(SL)
8
2mA
(SL)
10
14
16
17
15
13
9
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
7
2mA
(SL)
5
2mA
(SL)
3
2mA
(SL)
1
2mA
(SL)
38/44
ADCS 7283313C
STMICROELECTRONICS [ ST ]
