Features: `16,384-word ´ 10-bit ROM - Mask ROM: HD404019R, HD40L4019R - PROM: HD4074019, HD407L4019
`992-digit ´ 4-bit RAM
`58 I/O pins, including 26 high-voltage I/O pins (40 V max.)
`Two timer/counters - 8-bit free-running timer - 8-bit auto-reload timer/counter
`Clock synchronous 8-bit serial interface
`Five interrupt sources- Two by external sources - Two by timer/counters - One by serial interface
`Subroutine stack, up to 16 levels including interrupts
`Minimum instruction execution time: 0.89 s
`Low-power dissipation modes - Standby: Stops instruction execution while allowing clock oscillation and interrupt functions to operate - Stop: Stops instruction execution and clock oscillation while retaining RAM data HD404019R Series 2
`On-chip oscillator - ¾ Crystal or ceramic oscillator - External clock
`Packages - 64-pin shrink type plastic DIP ¾ 64-pin flat plastic package- 64-pin shrink type ceramic DIP with window
Specifications
|
Item |
Symbol |
Value |
Unit |
Notes |
| Supply voltage |
VCC |
0.3 to +7.0 |
V |
|
| Programming voltage |
VPP |
0.3 to +14 |
V |
10 |
| Pin voltage |
VT |
0.3 to VCC + 0.3 |
V |
1 |
|
VCC 45 to VCC + 0.3 |
V |
2 |
| Total permissible input current |
åIo |
50 |
mA |
3 |
| Maximum input current |
Io |
15 |
mA |
5, 6 |
| Maximum output current |
Io |
4 |
mA |
6, 7 |
|
6 |
mA |
7, 8 |
|
30 |
mA |
7, 9 |
| Total permissible output current |
åIo |
150 |
mA |
4 |
| Operating temperature |
Topr |
20 to +75 |
°C |
|
| Storage temperature |
Tstg |
55 to +125 |
°C |
|
Notes: Permanent damage may occur if these absolute maximum ratings are exceeded. Normal operation should be under the conditions of the electrical characteristics. If these conditions are exceeded, it may cause a malfunction or affect the reliability of the LSI.
All voltages are with respect to GND.
1. Standard pins.
2. High voltage pins.
3. Total permissible input current is the total sum of input currents which flow in from all I/O pins to GND ltaneously.
4. Total permissible output current is the total sum of the output currents which flow out from VCC to
all I/O pins simultaneously.
5. Maximum input current is the maximum amount of input current from each I/O pin to GND.
6. D0 to D3 and R3 to R8.
7. Maximum output current is the maximum amount of output current from VCC to each I/O pin.
8. R0 to R2.
9. D4 to D15.
10. Applied to HD4074019 and HD407L4019.
DescriptionThe HD404019R series are HMCS400-series CMOS 4-bit single-chip microcomputers. Each device incorporates a ROM, RAM, I/O, serial interface, and two timer/counters, and contains high-voltage I/O pins including high-current output pins to directly drive fluorescent displays.
The HD404019R series includes four chips. The HD404019R and HD40L4019R are Mask ROM versions. The HD4074019 and HD407L4019 are PROM versions. The HD40L4019R and HD407L4019 are lowvoltage operation versions.
HD404019R Data Sheet
