2 pin functions – Panasonic MN103001G/F01K User Manual
Page 33
1-7
General Specifications
1.4.2 Pin Functions
Table 1-4-2 shows the function of each pin of this microcontroller.
Table 1-4-2 Pin Function Table (1/2)
Category
Pin name
Input/
Number
Pin Function
Output
of pins
Power supply
VDD
8
Digital system power supply (+3.3 V)
VSS
7
Digital system GND
VDD2(VPP)
1
“VDD2” in the case of the MN103001G, “VPP” in the
case of the MN1030F01K. Connect to 5 V or 3.3 V.
Always input 5 V to VPP when writing.
Clock
OSCI
I
1
Oscillator input (use input of 3.3 V to 0 V amplitude only.)
OSCO
O
1
Oscillator output
(Open when using an external clock input)
SYSCLK
O
1
System clock output (multipurpose)
CKSEL
I
1
Switch for using/not using PLL
PVDD
1
PLL power supply (+3.3 V)
PVSS
1
PLL GND
Address bus
A23 to 0
O
24
Address lines 23 to 0 (multipurpose, A23 also serves as
CS3.)
Data bus
D15 to 0
I/O
16
Data lines 15 to 0 (multipurpose)
Address/
ADM15 to 0
I/O
(16)
Address/Data lines 15 to 0 (A15 to 0 multipurpose)
Data bus
Bus control
MMOD1 to 0
I
2
Mode setting signals
signals
EXMOD1 to 0
I
2
Extension mode setting (multipurpose)
RE
O
1
Memory read signal (multipurpose)
CS3 to 0
O
4
Chip select signals (multipurpose)
WE1 to 0
O
2
Memory write signals (multipurpose)
DK
I
1
Data acknowledge signal (multipurpose)
BG
O
1
Bus authority release signal (multipurpose)
BR
I
1
Bus authority request signal (multipurpose)
CAS
O
(1)
DRAM CAS signals (for 2WE) (multipurpose of A22)
RAS2 to 1
O
(2)
DRAM RAS signal (multipurpose of CS2 to 1)
AS
O
(1)
Address strobe signal (Also serves as D0.)
RWSEL
O
(1)
Read/write select (Also serves as D1.)
DCAS1 to 0
O
(2)
DRAM CAS signal (for 2 CAS)
DWE
O
(1)
DRAM write signal (for 2 CAS)