R8C/1A Group, R8C/1B Group 1. Overview
Rev.1.10 Mar 17, 2006 Page 7 of 312
REJ09B0252-0110
1.5 Pin Assignments
Figure 1.4 shows Pin Assignments for PLSP0020JB-A Package (Top View), Figure 1.5 shows Pin
Assignments for PRDP0020BA-A Package (Top View) and Figure 1.6 shows Pin Assignments for
PWQN0028KA-B Package (Top View).
Figure 1.4 Pin Assignments for PLSP0020JB-A Package (Top View)
1
2
3
4
5
6
7
8
9
10
20 P3_4/SCS/SDA/CMP1_1
19 P3_3/TCIN/INT3/SSI00/CMP1_0
18 P1_0/KI0/AN8/CMP0_0
17
P1_1/KI1/AN9/CMP0_1
16 P4_2/VREF
15 P1_2/KI2/AN10/CMP0_2
14 P1_3/KI3/AN11/TZOUT
13 P1_4/TXD0
12 P1_5/RXD0/CNTR01/INT11
11 P1_6/CLK0/SSI01
P3_5/SSCK/SCL/CMP1_2
P3_7/CNTR0/SSO/TXD1
RESET
XOUT/P4_7
(1)
VSS/AVSS
XIN/P4_6
VCC/AVCC
MODE
P4_5/INT0/RXD1
P1_7/CNTR00/INT10
PIN assignments (top view)
Package: PLSP0020JB-A (20P2F-A)
R8C/1A Group
R8C/1B Group
NOTE:
1. P4_7 is an input-only port.
R8C/1A Group, R8C/1B Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
1. Overview
These MCUs are fabricated using the high-performance silicon gate CMOS process, embedding the R8C/
Tiny Series CPU core, and is packaged in a 20-pin molded-plastic LSSOP, SDIP or a 28-pin plastic molded-
HWQFN. It implements sophisticated instructions for a high level of instruction efficiency. With 1 Mbyte of
address space, they are capable of executing instructions at high speed.
Furthermore, the R8C/1B Group has on-chip data flash ROM (1 KB × 2 blocks).
The difference between the R8C/1A Group and R8C/1B Group is only the presence or absence of data
flash ROM. Their peripheral functions are the same.
1.1 Applications
Electric household appliances, office equipment, housing equipment (sensors, security systems),
general industrial equipment, audio equipment, etc.
REJ09B0252-0110
Rev.1.10
Mar 17, 2006
HKTS200SUB
harman/kardon
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