Features: • 20 I/O pins
Large-current I/O pins (source: 10 mA max.):4
Large-current I/O pins (sink: 15 mA max.):4
Analog input multiplexed pins: 4 (HD404374, HD404384, and HD404389 Series)
• 8-bit timer: 1 channel
16-bit timer: 1 channel (Can also be used as two 8-bit timer channels)
• Two timer outputs (including PWM output)
• Event counter inputs (edge-programmable)
• Clock-synchronous 8-bit serial interface
• A/D converter
4 channels * 10-bits (HD404374 and HD404384 Series)
6 channels * 10-bits (HD404389 Series)
None (HD404082 and HD404084 Series)
• On-chip oscillators
HD404374 Series
• Main clock (ceramic resonator, crystal resonator, CR oscillation* or external clock operation possible)
• Sub-clock (32.768 kHz crystal resonator)
HD404384, HD404389, HD404082, and HD404084 Series
• Main clock (ceramic resonator, crystal resonator, CR oscillation* or external clock operation possible)
Note: * CR oscillation in an optional function.
• Interrupts
External: 2 (including one edge-programmable)
Internal : 5 (HD404374/HD404384/HD404389 Series)
: 4 (HD404082/HD404084 Series)
• Subroutine stack up to 16 levels, including interrupts
• Low-power dissipation modes
HD404374 Series: 4
HD404384, HD404389, HD404082, and HD404084 Series: 2
• Module standby (timers, serial interface, A/D converter)
• System clock division software switching (1/4 or 1/32)
• Inputs for return from stop mode (wakeup): 1
• Instruction execution time
Min. 0.89 s (fOSC = 4.5 MHz, division by 1/4)
Min. 0.47 s (fOSC = 8.5 MHz, division by 1/4)
• Operation voltage
1.8 V to 5.5 V
2.0 V to 5.5 V (ZTATTM)Pinout
Specifications
| Item |
Symbol |
Value |
Unit |
Notes |
| Power supply voltage |
VCC |
0.3 to +7.0 |
V |
|
| Programming voltage |
VPP |
0.3 to +14.0 |
V |
1 |
| Pin voltage |
VT |
0.3 to VCC+0.3 |
V |
|
| Allowable input current (total) |
l0 |
100 |
mA |
2 |
| Allowable output current (total) |
l0 |
50 |
mA |
3 |
| Allowable input current (per pin) |
l0 |
4 |
mA |
4,5 |
| |
30 |
mA |
4,6 |
| Allowable output current (per pin) |
l0 |
4 |
mA |
7,8 |
| |
20 |
mA |
7,9 |
| Operating temperature |
Topr |
20 to +75 |
|
10, 12 |
| |
40 to +85 |
|
11, 12 |
| Storage temperature |
Tstg |
55 to +125 |
|
13 |
Notes: Permanent damage may occur if these maximum ratings are exceeded. Normal operation 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 the HD407A4374, HD407C4374, HD407A4384, HD407C4384, HD407A4389, and HD407C4389 TEST (VPP) pin.
2. The allowable input current (total) is the sum of all currents flowing from I/O pins to ground at the same time.
3. The allowable output current (total) is the sum of all currents flowing from VCC to I/O pins.
4. The allowable input current (per pin) is the maximum current allowed to flow from any one I/O pin to ground.
5. Applies to pins D0 to D3, D8, D9 and port R.
6. Applies to pins D4 to D7.
7. The allowable output current (per pin) is the maximum current allowed to flow from VCC to any one I/O pin.
8. Applies to pins D4 to D9 and port R.
9. Applies to pins D0 to D3.
10. Applies to Mask ROM
11. Applies to ZTATTM.
12. The operating temperature indicates the temperature range in which power can be supplied to the LSI (voltage Vcc shown in the electrical characteristics tables can be applied).
13. In the case of chips, the storage specification differs from that of the package products. Please consult your Hitachi sales representative for details.
DescriptionThe HD404374, HD404384, and HD404389 Series comprise low-voltage, 4-bit single-chip microcomputers equipped with four 10-bit A/D converter channels, a serial interface, and large-current I/O pins. These devices are suitable for use in applications requiring high resolution A/D converter control, such as battery chargers.
The HD404374, HD404384, and HD404389 Series offer less advanced features than the HD404384 series. They are 4- bit microcomputers that support low-voltage operation for backward software compatibility. HD404374 Series microcomputers have a 32.768 kHz sub-resonator for realtime clock use, providing a time counting facility, and a variety of low-power modes to reduce current drain.
The HD404374, HD404384, and HD404389 Series are ZTATTM microcomputers with on-chip PROM that drastically shortens development time and ensures a smooth transition from debugging to mass production. (The PROM programming specifications are the same as for the 27256 type.)ZTATTM: Zero Turn-Around Time. ZTATTM is a trademark of Renesas Technology Corp.
HD404374 Data Sheet
