HD6432345 Datasheet, PDF (23/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

Table 1.1 Overview (cont)
Item
8-bit timer
2 channels
Watchdog timer
Serial
communication
interface (SCI)
2 channels
A/D converter
D/A converter
I/O ports
Memory
Specification
• 8-bit up-counter (external event count capability)
• Two time constant registers
• Two-channel connection possible
• Watchdog timer or interval timer selectable
• Asynchronous mode or synchronous mode selectable
• Multiprocessor communication function
• Smart card interface function
• 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
• Resolution: 8 bits
• Output: 2 channels
• 71 I/O pins, 8 input-only pins
• Flash memory, PROM, or mask ROM
• High-speed static RAM
Product Name
H8S/2345
H8S/2344
H8S/2343
H8S/2341
H8S/2340
ROM
128 kbytes
96 kbytes
64 kbytes
32 kbytes
—
RAM
4 kbytes
4 kbytes
2 kbytes
2 kbytes
2 kbytes
Interrupt controller
• Nine external interrupt pins (NMI, IRQ0 to IRQ7)
• 43 internal interrupt sources
• Eight priority levels settable
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