H8S2245 datasheet(45/818 Pages) RENESAS

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Section 1 Overview

Rev.3.00 Mar. 26, 2007 Page 3 of 772

REJ09B0355-0300

Item

Specification

16-bit timer-pulse

unit (TPU)

• 3-channel 16-bit timer on-chip

• Pulse I/O processing capability for up to 8 pins'

• Automatic 2-phase encoder count capability

8-bit timer

2 channels

• 8-bit up-counter (external event count capability)

• Two time constant registers

• Two-channel connection possible

Watchdog timer

• Watchdog timer or interval timer selectable

Serial

communication

interface (SCI)

3 channels

• Asynchronous mode or synchronous mode selectable

• Multiprocessor communication function

• Smart card interface function

A/D converter

• Resolution: 10 bits

• Input: 4 channels

• Single or scan mode selectable

• Sample and hold circuit

• A/D conversion can be activated by external trigger or timer trigger

I/O ports

• 75 I/O pins, 4 input-only pins

Memory

• PROM or mask ROM

• High-speed static RAM

Product Name

ROM

RAM

H8S/2246

128 kbytes

8 kbytes

H8S/2245

128 kbytes

4 kbytes

H8S/2244

64 kbytes

8 kbytes

H8S/2243

64 kbytes

4 kbytes

H8S/2242

32 kbytes

8 kbytes

H8S/2241

32 kbytes

4 kbytes

H8S/2240

—

4 kbytes

Interrupt controller

• Nine external interrupt pins (NMI, IRQ0 to IRQ7)

• 34 internal interrupt sources

• Three priority levels settable

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