41
Pin No.
Pin Name
Type
Description
16
RD5
17
RD4
I/O
PUA
RAM Data : Data for DRAM
18
RD3
Possible to set bus size (16 bit/8bit) by setting internal registers
19
RD2
33
RD1
32
RD0
38
RRAS0#
O
Row Address Strobe 0 : RAS for DRAM
30
RCASH#
O
Column Address Strobe High : CAS0 for DRAM – If 16 bit bus is selected, this pin
used by strobe
31
RCASL#
O
Column Address Strobe Low
37
RWE#
I/O
Write Enable 0 : WE0 for DRAM
Write strobe of RD [7:0] when 16 bit data bus is selected
36
ROE#
I/O
Output Enable : OE for DRAM
Power Supply
Pin No.
Pin Name
Description
9
VDD5
5 Volts
10, 22, 34, 46, 55,
63, 74, 83, 92,
VDD
Digital Power 3.3 Volts
108, 134, 173, 189
11, 23, 35, 47, 58,
66, 75, 84, 93,
VSS
Digital Ground
109, 135, 174, 190
152, 153, 157,
158, 199, 206
AVDD
Analog Power 3.3 Volts
1, 150, 155, 156,
AVSS
Analog Ground
165, 195, 200
164, 196
VREF
Reference voltage 2.1 Volts
205
2VREF
Reference voltage 4.2 Volts