HD404449

Notes: Permanent damage may occur if these absolute maximum ratings are exceeded. Normal opera-tion must be under the conditions stated in the electrical characteristics tables. If these conditions are exceeded, the LSI may malfunction or its reliability may be affected.
1. Applies to D13 (VPP) of the HD4074449.
2. The total permissible input current is the total of input currents simultaneously flowing in from all the I/O pins to ground.
3. The total permissible output current is the total of output currents simultaneously flowing out from VCC to all I/O pins.
4. The maximum input current is the maximum current flowing from each I/O pin to ground.
5. Applies to D10, D11, and R0RC.
6. Applies to D0D9.
7. The maximum output current is the maximum current flowing out from VCC to each I/O pin.
8. Applies to D0D11 and R0RC.

The HD404449 Series is a HMCS400-series microcomputer designed to increase program productivity with large-capacity memory. Each microcomputer has four timers, two serial interfaces, A/D converter, input capture circuit, 32-kHz oscillator for clock, and four low-power dissipation modes.

The HD404449 Series includes three chips: the HD404448 with 8-kword ROM; the HD404449 with 16- kword ROM; and HD4074449 with 16-kword PROM (ZTATä version).

The HD404449 is a PROM version (ZTATä microcomputer). A program can be written to the PROM by a PROM writer, which can dramatically shorten system development periods and smooth the process from debugging to mass production. (The ZTATä version is 27256-compatible.)