Datasheet

RL78/L12 CHAPTER 2 PIN FUNCTIONS
R01UH0330EJ0200 Rev.2.00 34
Dec 13, 2013
(5/5)
Function
Name
I/O Function
64-
pin
52-
pin
48-
pin
44-
pin
32-
pin
VDD
−
<32-pin, 44-pin, 48-pin, 52-pin>
Positive power supply for all pins
<64-pin >
Positive power supply for P20, P21, P121 to P124, P137 and RESET pin
√ √ √ √ √
EVDD
−
<64-pin>
Positive power supply for ports (other than P20, P21, P121 to P124, P137)
and pins other ports (except for the RESET pin)
√ − − − −
AVREFP Input A/D converter reference potential (+ side) input
√ √ √ √ √
AVREFM Input A/D converter reference potential (− side) input
√ √ √ √ √
VSS
−
<32-pin, 44-pin, 48-pin, 52-pin>
Ground potential for all pins
<64-pin>
Ground potential for P20, P21, P121 to P124, P137 and RESET pin
√ √ √ √ √
EVSS
−
<64-pin >
Ground potential for ports (other than P20, P21, P121 to P124, P137) and
pins other ports (except for the RESET pin)
√ − − − −
TOOLRxD Input
UART reception pin for the external device connection used during flash
memory programming
√ √ √ √ √
TOOLTxD Output
UART transmission pin for the external device connection used during flash
memory programming
√ √ √ √ √
TOOL0 I/O Data I/O for flash memory programmer/debugger
√ √ √ √ √
Remark √: Mounted
−: Not mounted