Datasheet

Section 1 Overview
Rev.7.00 Feb. 14, 2007 page 3 of 1108
REJ09B0089-0700
Item Specification
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),
2 channels
• Asynchronous mode or synchronous mode selectable
• Multiprocessor communication function
• Smart card interface function
A/D converter
• Resolution: 10 bits
• Input: 8 channels
• High-speed conversion: 6.7 μs minimum conversion time
(at 20-MHz operation)
• Single or scan mode selectable
• Sample-and-hold circuit
• A/D conversion can be activated by external trigger or timer trigger
D/A converter
• Resolution: 8 bits
• Output: 2 channels
I/O ports
• 70 input/output pins, 9 input pins
Memory
• Flash memory, mask ROM
• High-speed static RAM
Product Name ROM RAM
H8S/2319C 512 kbytes 16 kbytes
H8S/2319 512 kbytes 8 kbytes
H8S/2318 256 kbytes 8 kbytes
H8S/2317(S)
*
128 kbytes 8 kbytes
H8S/2316S 64 kbytes 8 kbytes
H8S/2315 384 kbytes 8 kbytes
H8S/2314 384 kbytes 4 kbytes
H8S/2312S — 8 kbytes
Note: * H8S/2317S in mask ROM version.
Interrupt controller
• 9 external interrupt pins (NMI, IRQ0 to IRQ7)
• 43 internal interrupt sources
• Eight priority levels settable