Key facts
- Brand
- ELAN
- Model
- EM78P447S
- Documents
- 2
- Languages
- EN
- Last added
- 2012-03-21
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ELAN EM78P447S 8-Bit Microcontroller OTP ROM Datasheet
The EM78P447S from ELAN is an 8-bit microprocessor built with low-power, high-speed CMOS technology. It includes 4K×13-bit electrically one-time programmable ROM, a protection bit, seven option bits, 148×8-bit on-chip registers, and three bidirectional I/O ports. The document explains that the OTP-ROM feature supports developing and verifying user programs and notes that EMC Writer can be used for programming.
This datasheet presents features, pin assignments and pin descriptions for the 28-pin DIP/SOP/SSOP and 32-pin DIP/SOP versions. It also describes operational registers, program counter and stack organization, status and RAM select registers, and AC electrical characteristics, with supporting tables and timing values.
ELAN EM78P447S specifications
| Operating voltage | 2.3 V to 5.5 V |
|---|---|
| Operating temperature | 0°C to 70°C |
| On-chip OTP ROM | 4K × 13 bits |
| On-chip registers (SRAM) | 148 × 8 bits |
| I/O ports | 3 bidirectional I/O ports |
| Crystal-mode operating frequency | DC~20 MHz at 5 V; DC~8 MHz at 3 V; DC~4 MHz at 2.3 V |
| Instruction cycle | Two clocks per instruction cycle |
| Program memory page size | 1024 words |
Source: ELAN EM78P447S 8-Bit Microcontroller OTP ROM Datasheet
All ELAN EM78P447S documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What operating voltage range does the EM78P447S support?
It operates from 2.3 V to 5.5 V.
From: ELAN EM78P447S 8-Bit Microcontroller OTP ROM Datasheet
How much OTP ROM and register memory does the EM78P447S have?
It has 4K × 13 bits of on-chip OTP ROM and 148 × 8 bits of on-chip registers.
From: ELAN EM78P447S 8-Bit Microcontroller OTP ROM Datasheet