Datasheet
Section 1 Overview 
R01UH0310EJ0500 Rev. 5.00    Page 7 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
Type 
Module/ 
Function Description 
I
2
C bus 
interface 2 
(IIC2) 
•  Four channels 
•  Continuous transmission/reception 
•  Start and stop conditions generated automatically in master mode 
•  Selection of acknowledge output levels when receiving 
•  Automatic loading of acknowledge bit when transmitting 
•  Bit synchronization/wait function 
High-
function 
communi-
cations 
Synchronou
s serial 
communicati
on unit 
(SSU) 
•  One channel 
•  Master mode or slave mode can be selected 
•  Standard mode or bidirectional mode can be selected 
•  Full-duplex communication capability 
•  Consecutive serial communication capability 
I/O ports  H8S/2426 Group, H8S/2426R Group: 
•  Input-only pins: 18 
•  Input/output pins: 98 
•  Pull-up resistor pins: 40 
•  Open-drain pins: 98 
H8S/2424 Group: 
•  Input-only pins: 11 
•  Input/output pins: 83 
•  Pull-up resistor pins: 40 
•  Open-drain pins: 83 
Package  H8S/2426 Group, H8S/2426R Group: 
•  144-pin QFP package (PLQP0144KA-A) 
(code: FP-144LV, body size: 20 × 20 mm, pin pitch: 0.50 mm) 
•  145-pin TLP package (PTLG0145JB-A) 
(body size: 9 × 9 mm, pin pitch: 0.65 mm) 
H8S/2424 Group: 
•  120-pin QFP package (PLQP0120LA-A) 
(code: FP-120BV, body size: 14 × 14 mm, pin pitch: 0.40 mm) 
•  120-pin QFP package (PLQP0120KA-A) 
(body size: 16 × 16 mm, pin pitch: 0.50 mm) 
•  Pb-free package 










