LM6416E NMOS 4-Bit Single-Chip Microcomputers 5V IC DIP-28
The LM6416E is a member of the LM6413/6416/6417 family of NMOS single-chip microcomputers designed for consumer and embedded control applications. It integrates a high-speed 4-bit CPU core, on-chip program memory, RAM, programmable timer, clock generator, interrupt circuitry, and multiple I/O ports into a single compact package. This high level of integration reduces component count and simplifies system design for cost-sensitive products.
The device features a 65-instruction architecture with support for subroutine nesting, programmable timers, automatic page stepping, and pseudo-interrupt functions. With direct interfacing capability to 12V equipment and high-voltage tolerant I/O pins, the LM6416E is ideal for appliance controllers, consumer products, industrial control systems, and other dedicated embedded applications requiring reliable and economical processing capability.
Features
- Single-chip 4-bit microcomputer.
- High-speed 4-bit parallel processing CPU.
- Integrated program memory and RAM.
- Programmable timer.
- Multiple general-purpose I/O ports.
- Direct interface capability with 12V systems.
- High-voltage tolerant I/O pins.
- CMOS/TTL compatible inputs and outputs.
- On-chip clock generator.
- External ceramic resonator support.
- External RC oscillator support.
- Internal and external interrupt capability.
- Pseudo-interrupt function.
- Two-level subroutine nesting.
- Automatic page stepping.
- Compact single-chip architecture.
- Low component count system design.
- Suitable for consumer control applications.
- Logic replacement capability.
- Designed for low-cost embedded systems.
Specifications:
| Parameter | Value |
|---|---|
| Part Number | LM6416E |
| Device Type | 4-Bit Single-Chip Microcomputer |
| CPU Architecture | 4-Bit NMOS |
| Program ROM | 1K × 8 Bytes |
| Data RAM | 64 × 4 Bits |
| Instruction Set | 65 Instructions |
| Number of I/O Pins | 21 |
| Timer Channels | 1 |
| Cycle Time | 4.0 µs |
| Supply Voltage | 4.5V to 6.5V |
| Typical Operating Voltage | 5V |
| I/O Withstand Voltage | 15V |
| Output Drive Current | 20mA |
| Interrupts | 1 Internal, 1 External Pseudo-Interrupt |
| Oscillator Type | RC Oscillator |
| Package Type | DIP-28S |
| Technology | NMOS |
Pinout:
| Pin | Name | Function | Notes |
|---|---|---|---|
| 1 | PD0 | Port D bit 0; bidirectional I/O | Part of PD3–PD0. In input mode, 4‑bit input and bit test are allowed; in output mode, 4‑bit output, bit set/reset, and immediate data output are allowed. |
| 2 | PD1 | Port D bit 1; bidirectional I/O | Same port behavior as PD0. |
| 3 | PD2 | Port D bit 2; bidirectional I/O | Same port behavior as PD0. |
| 4 | PD3 | Port D bit 3; bidirectional I/O | Same port behavior as PD0. |
| 5 | EXTAL | External clock / resonator‑side oscillator terminal | Defined as the terminal operated when the clock signal is externally supplied; when using local‑clock oscillation, the ceramic resonator and CR network are connected between XTAL and EXTAL. |
| 6 | XTAL | Oscillator terminal | External terminal of the resonance circuit for local clock oscillation; a ceramic resonator and CR are connected between this pin and EXTAL. Marked X’tal in the OEM tables. |
| 7 | INT | Pseudo‑interrupt request input | External interrupt/pseudo‑interrupt input. The family datasheet also notes Schmitt‑trigger gates on reset and external interrupt pins. |
| 8 | RES | Reset input | Reset input terminal. Typically treated as a control input with Schmitt‑trigger behavior per family datasheet note. |
| 9 | PE0 | Port E bit 0; output | Part of PE3–PE0 output‑only port. 4‑bit output and bit set/reset are allowed. |
| 10 | PE1 | Port E bit 1; output | Same port behavior as PE0. |
| 11 | PE2 | Port E bit 2; output | Same port behavior as PE0. |
| 12 | PE3 | Port E bit 3; output | Same port behavior as PE0. |
| 13 | TEST | Test input | LSI test terminal; OEM table says it is usually connected to V<sub>SS</sub> (0 V). This is the only explicitly “special” pin besides clock/reset/interrupt/power. |
| 14 | VSS | Ground / 0 V supply return | Connected to 0 V of the power supply. |
| 15 | PF0 | Port F bit 0; output | Part of PF3–PF0 output‑only port. 4‑bit output and bit set/reset are allowed. |
| 16 | PF1 | Port F bit 1; output | Same port behavior as PF0. |
| 17 | PF2 | Port F bit 2; output | Same port behavior as PF0. |
| 18 | PF3 | Port F bit 3; output | Same port behavior as PF0. |
| 19 | PG0 | Port G bit 0; output | Single‑bit output port; in output mode, 1‑bit output and bit set/reset are allowed. |
| 20 | VDD | Positive supply input | Power terminal, usually connected to +5 V. Recommended operating range is 4.5 V to 6.5 V. |
| 21 | PA0 | Port A bit 0; input | Part of PA3–PA0 dedicated input port. In input mode, 4‑bit input and bit test are allowed. |
| 22 | PA1 | Port A bit 1; input | Same port behavior as PA0. |
| 23 | PA2 | Port A bit 2; input | Same port behavior as PA0. |
| 24 | PA3 | Port A bit 3; input | Same port behavior as PA0. |
| 25 | PC0 | Port C bit 0; bidirectional I/O | Part of PC3–PC0. In input mode, 4‑bit input and bit test are allowed; in output mode, 4‑bit output, bit set/reset, and immediate data output are allowed. |
| 26 | PC1 | Port C bit 1; bidirectional I/O | Same port behavior as PC0. |
| 27 | PC2 | Port C bit 2; bidirectional I/O | Same port behavior as PC0. |
| 28 | PC3 | Port C bit 3; bidirectional I/O | Same port behavior as PC0. |
Applications
- Consumer electronics.
- Home appliance controllers.
- Electronic timers.
- Remote control systems.
- Low-cost embedded controllers.
- Logic replacement circuits.
- Multi-CPU support systems.
- Industrial control equipment.
- Security systems.
- Small automation projects.
- Dedicated control panels.
- Custom electronic products.
Package Included:
- 1x LM6416E NMOS 4-Bit Single-Chip Microcomputers 5V IC DIP-28.