Key facts
- Brand
- Texas Instruments
- Model
- TMS27C020
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-01
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TEXAS INSTRUMENTS TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES handbook
The document details two types of memory devices: the TMS27C020 series, which are ultraviolet (UV) light erasable electrically programmable read-only memories (EPROMs), and the TMS27PC020 series, which are one-time programmable (OTP) PROMs. Both devices feature a 262144 by 8-bit configuration and utilize power-saving CMOS technology for high-speed operation with simple interfaces to MOS and bipolar circuits.
Read onlineTexas Instruments TMS27C020 specifications
| Memory Capacity | 262144 by 8 bits (2097152-bit) |
|---|---|
| Technology | CMOS |
| Operating Voltage | 5 V (Read Mode) |
| Programming Voltage | 13 V |
| Signature Code (Manufacturer) | 97 Hex |
All Texas Instruments TMS27C020 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- TEXAS INSTRUMENTS TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES handbook 16 p
- TEXAS INSTRUMENTS TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES handbook(2) 15 p
- Texas Instruments TMS27C020/TMS27PC020 262144 x 8-Bit EPROM/PROM Datasheet 16 p
Questions answered in these manuals
What is the recommended UV exposure dose for erasure?
The recommended minimum exposure dose is 15-W-s/cm².
Can these devices be driven by TTL circuits?
Yes, all inputs can be driven by Series 74 TTL circuits without external pullup resistors.
What is the signature code for the TMS27C020?
The signature code is 9732, with 97 representing the manufacturer and 32 representing the device.
How long does the erasure process take?
Using a typical 12-mW/cm2 filterless UV lamp, the device is erased in about 21 minutes.
What is the signature code for the TMS27C020?
The signature code is 9732, where 97 is the manufacturer code and 32 is the device code.
From: Texas Instruments TMS27C020/TMS27PC020 262144 x 8-Bit EPROM/PROM Datasheet
How long does erasure take with a typical UV lamp?
A typical 12-mW/cm2 filterless UV lamp erases the device in 21 minutes.
From: Texas Instruments TMS27C020/TMS27PC020 262144 x 8-Bit EPROM/PROM Datasheet