Datasheet
Section 1 Overview 
Page 2 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
1.1.2  Overview of Specifications 
The specifications of this LSI are summarized in table 1.1. 
Table 1.1  Overview of Specifications 
Type 
Module/ 
Function Description 
ROM 
•  Flash memory version 
⎯  User ROM: 256 Kbytes and 128 Kbytes 
⎯  Data flash: 8 Kbytes 
•  ROM-less version 
Memory 
RAM  RAM size: 64 Kbytes and 48 Kbytes 
CPU 
•  16-bit high-speed H8S/2600 CPU (CISC type) 
Upward-compatible with H8/300, H8/300H, and H8S CPUs on an 
object level 
•  General register mode (Sixteen 16-bit general registers) 
•  Eight addressing modes 
•  Address space: 16 Mbytes (program: 16 Mbytes, data: 16 Mbytes) 
•  Number of basic instructions 
69 types (arithmetic and logic, multiply and divide, bit-manipulation, 
and multiply-and-accumulate instructions) 
•  Minimum instruction execution time (ns) 
30.3 ns when system clock φ = 33 MHz and Vcc = 3.0 to 3.6 V 
(ADD instruction) 
•  Multiplier is included (16 × 16 → 32 bits) 
•  Multiply-and-accumulate instructions are supported (16 × 16 + 32 → 
32 bits) 
CPU 
Operating 
mode 
Advanced mode 










