The M27C020 is a high-speed 2 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one-time programmable). It is ideally suited for microprocessor systems requiring large programs and is organized as 262,144 by 8 bits. The FDIP32W (window ceramic frit-seal package) and LCCC32W (leadless chip carrier package) have transparent lids which allow the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C020 is offered in PDIP32, PLCC32, and TSOP32 (8 x 20 mm) packages.
27C020 Pinout
27C020 Pin Configuration
Pin Number | Pin No | Description |
---|---|---|
1 | VPP | Programming Supply |
2 | A16 | Address Input |
3 | A15 | Address Input |
4 | A12 | Address Input |
5 | A7 | Address Input |
6 | A6 | Address Input |
7 | A5 | Address Input |
8 | A4 | Address Input |
9 | A3 | Address Input |
10 | A2 | Address Input |
11 | A1 | Address Input |
12 | A0 | Address Input |
13 | DQ0 | Data Output |
14 | DQ1 | Data Output |
15 | DQ2 | Data Output |
16 | VSS | Ground |
17 | DQ3 | Data Output |
18 | DQ4 | Data Output |
19 | DQ5 | Data Output |
20 | DQ6 | Data Output |
21 | DQ7 | Data Output |
22 | CE’ | Chip Enable |
23 | A10 | Address Input |
24 | OE’ | Output Enable/Program Supply |
25 | A11 | Address Input |
26 | A9 | Address Input |
27 | A8 | Address Input |
28 | A13 | Address Input |
29 | A14 | Address Input |
30 | A17 | Address Input |
31 | PGM | Programming Pin |
32 | VCC | Positive Power Supply |
27C020 Key Features
- 5V ± 10% Supply Voltage in reading Operation
- Access Time: 55ns
- Low Power Consumption:
- Active Current 30mA at 5MHz
- Standby Current 100µA
- Programming Voltage: 12.75V ± 0.25V
- Programming Time: 100µs/word
- Electronic Signature
- Manufacturer Code: 20h
- Device Code: 61h
You can download this datasheet for 27C020/27C2001 2048K 100ns CMOS EPROM – Datasheet from the link given below: